01 cns manual_vol_i

Airports Authority of India CNS Manual Volume I

August 1, 2006 1 Version 1.0

First Edition - 2006

AIRPORTS AUTHORITY OF INDIA



FOREWORD

Airports Authority of India provides Aeronautical Telecommunication services in accordance with Annex 10 to the Chicago Convention. These services are Aeronautical Fixed service, Aeronautical Mobile Service, Aeronautical Radio Navigation service and Aeronautical broadcasting service. In order to achieve the objective of Aeronautical Telecommunication service there is a need to specify procedures necessary for the safety of air navigation for the uniform application throughout India. Maintaining the acceptable levels of safety requires standardization and quality assurance in every sub system of Aeronautical Telecommunication System at one end and maintaining harmony with the ICAO standards and recommended practices at the other. This manual of Communication, Navigation and Surveillance Services Volume I to VII has been developed by Airports Authority of India as a part of comprehensive documentation to achieve this objective. The Purpose of this document is to establish procedures, provide information and guidelines which are essential for the provision of safe and efficient Aeronautical Telecommunication services in the Indian airspace and at airports where such services are provided by Airports Authority of India. It is published for use and guidance of its CNS personnel. The CNS in-charge of an Aeronautical Communication Station will ensure that the provision of Aeronautical Telecommunication services under his jurisdiction comply with the processes, procedures and guidelines contained in this manual. With a view to keep pace with futuristic satellite navigation technology which has potential to support all phases of flight by providing seamless global navigation guidance, AAI has taken initiative to implement GPS and GEO Augmented Navigation (GAGAN) jointly with Indian Space Research Organization (ISRO) which, when become operational, would be one of the four such systems in the world. I am sure that this manual will fulfill the need for best practices in provision of Aeronautical Telecommunication Services according to international and national standards and recommended practices in meeting the requirement of ICAO Universal Safety Audit Oversight Programme, which aims at documenting what we do, doing what we have documented and finally demonstrating that we are doing so. I, Therefore, call upon all the personnel engaged in the Operation and Maintenance of Aeronautical Telecommunication Services to comply with the standards and procedures given in this manual for enhancing safety in the airspace under their jurisdiction.

(K. RAMALINGAM) Chairman, AAI



PREFACE

This Manual on Communication, Navigation and Surveillance Services Volume I to VII is prepared and maintained by the Directorate of CNS-OM, CHQ, on behalf of the Airports Authority of India for the use and guidance of executives and staff of AAI. The Manual provides processes, procedures and instructions that are essential for the provision of safe and efficient air services within the airspace under the jurisdiction of AAI and at airports where Aeronautical Telecommunication services are provided by Airports Authority of India including coordination with neighbouring / adjacent states. This Manual has been developed as a part of comprehensive documentation of the Aeronautical Telecommunication procedures, processes and facilities supporting conformance to organizational requirements and compliance with National Regulations and Standards & Recommended Practices of ICAO Annex 10, DOC 8071 and other ICAO documents relevant to the provision of Aeronautical Telecommunication Services that are uniformly applicable to all the airports. The topics covered under the seven volumes of CNS Manual are: Volume I – Maintenance of CNS facilities; Volume II – Communication Systems and Procedures; Volume III – Siting Criteria of CNS facilities; Volume IV – Flight Inspection of CNS Facilities; Volume V – Lightening, Surge protection and Earthing system of CNS equipment; Volume VI – Technical specifications and Volume VII – CNS facilities Maintenance Schedules.

In addition to CNS Manual Volume I to VII, airport specific CNS Manuals (called Station CNS Manual) have been developed by CNS-in-Charges of various airports as part of the above mentioned documentation process. Station CNS Manual contains information, guidance, procedures and instructions applicable to the CNS units of those particular airports and are maintained by CNS-in-Charges of the concerned airports.

Differences from ICAO Standards and Recommended Practices of ICAO Annex 10 are published in AIP India.

Wherever there is a difference between a Standard prescribed by ICAO and one in this Manual, the standard prescribed in this manual shall prevail.

This Manual should be read in conjunction with the following:

a) ICAO Annex 10 (Volume I to V)-Aeronautical Telecommunication Services. b) Doc. 8071 Vol. I Flight Inspection Procedures for Navigation Aids. c) Doc 8071 Vol. III Flight Inspection Procedures for Surveillance system d) ICAO Annex 15 – Aeronautical Information Services. e) Doc 8126 Aeronautical Information Services Manual f) Doc 9683-Human Factor Training Manual.

g) Doc 9734-Safety Oversight Manual h) Station CNS Manual (Airport specific)

i) Civil Aviation Requirements (CARs) Section 4 Series D “Aerodrome Standards and Air Traffic Services” promulgated by DGCA India.



It is to be recognized that in the changing aviation safety environment, the need to amend the Manual may be necessitated due to number of causes, such as:

a) Changes/ amendments to ICAO Annexes/ Documents. b) Changes/ introduction of DGCA Civil Aviation Requirements (CARS) c) Introduction of CNS facilities based on new technology. d) Requirements from ATS, Airlines or any other concerned agency.

It is intended to keep this Manual up to date. Future editions of the Manual will most likely be improved on the basis of experience gained and of comments & suggestions received from the users of this Manual. Views, comments & suggestions for improvement of this edition, may be sent to the Executive Director CNS-OM, Airports Authority of India, CHQ, New Delhi.

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Record of Amendments

No. Amendment Date Incorporated on Incorporated by



Intentionally left Blank



TABLE OF CONTENTS

Chapter 1: Document identification and control 03 Chapter 2: Maintenance system of CNS Facilities 05 Chapter 3: Organizational Structure and Functions 16 Chapter 4: Procedures for site selection of CNS Facilities 22 Chapter 5: Procedure for Installation of Navigational Aids 24 Chapter 6: Procedures of Flight Inspection 27 Chapter 7: GAGAN — Indian SBAS 34 Chapter 8: Document Availability and Control at the Station 38 Chapter 9: Record Systems Related to Maintenance of Facilities 40 Chapter 10: CNS Circulars 41 Chapter 11: Performance Targets for CNS facilities 75

Chapter 12: Maintenance of CNS/ATM Systems 81 Chapter 13: Job Description – (CNS-OM) 84

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Chapter 1

Document Identification and Control 1 Title: 1.1 This document is identified as Manual of Aeronautical Telecommunication, Radio Navigational and Surveillance Service (CNS Services) abbreviated hereafter as CNS-Manual Vol. I 2 Purpose: 2.1 Purpose of this document is to establish CNS procedures and to provide information and instructions pertaining to CNS facilities, which are essential for the provision of safe and efficient air traffic services by Airports Authority of India. It is published for use and guidance of its CNS Maintenance personnel. 2.2 The CNS in-charge of the station will ensure that the processes, procedures and instructions contained in this manual for the provision of CNS facilities are strictly complied with by all concerned. 3 Responsibility for documentation, review, amendments and publication: 3.1 The General Manager (N&S), AAI, CHQ is responsible for development, review and amendments of CNS – Manuals Vol. I, III, IV, V, VI and VII. He will ensure that the provision of CNS facilities as detailed in this manual are in conformity with Standards and Recommended Practices (SARPs) given in the Annexes to Convention on International Civil Aviation and National regulations. The General Manager (Com), AAI CHQ is responsible for development, review and amendments of CNS Manual Vol. II.

3.2 The Executive Director (CNS-OM) is responsible for the approval of documentation & amendments and publication of CNS-Manual.

4 Interpretation of Words:

4.1 To avoid any misunderstanding within CNS, certain words are to be interpreted as having following specific meanings when they are the operative words in an instruction.

Words Meanings ‘shall’, ‘must’‘is / are to’

The instruction is mandatory.

‘will’

It is only used for informative or descriptive writing

‘may’ It means that the instruction is permissive, optional or alternative, e.g. ‘a maintenance personnel may seek assistance……’ but would not, if he did not need it.

‘should’ It means that it is strongly advisable that an instruction is carried out; it is recommended or discretionary. It is applied where the more positive ‘shall’ is unreasonable but nevertheless a maintenance personnel would have to have a good reason for not doing so.



4.2 In the interest of simplicity, any reference to the masculine gender be taken to mean either male or female.

5. Effective Date:

5.1 Effective date of an instruction is indicated at the foot of the page. 5.2 New edition will be indicated by the same date at the foot of the page. 6. Change History:

6.1 This is version 1 of CNS Manual Vol. I. Changes are indicated on ‘Record of Amendments and corrigenda page’. 6.2 Amendments – documentation being inserted in the manual must contain headers and

footers that are consistent with those given in this document. 7. Control of the manual:

7.1 Directorate of CNS-OM will control this Manual electronically through AAI web site. 8 Distribution of the Manual: 8.1 Directorate of CNS-OM may produce hard copies and control the distribution of these Copies, as deemed appropriate. 9 Master Copy: 9.1 An electronic and a hard master copy of each chapter contained in the Manual will be held and maintained by the CNS-OM Directorate. 10 Checking Currency of Manual: 10.1 A current copy of the Manual will be published on Airports Authority of India web site. 11 Enquiries 11.1 Enquiries/Clarifications should be addressed to:

Executive Director (CNS - OM), Airports Authority of India, Rajiv Gandhi Bhaven, Safdarjung Airport, New Delhi – 110003. Telephone: 011- 24652075 FAX : 011- 24654142

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Chapter 2

Maintenance System of CNS Facilities

1. Scope:

This chapter describes the requirements and methods to be applied to the management and operation of CNS facilities to assure integrity and safe provision of service.

The Executive Director (CNS-OM) is responsible to the Member (Operations), AAI for ensuring that Aeronautical Telecommunications, Radio Navigation and Surveillance (CNS) Services provided by AAI satisfy regulatory, contractual and ICAO obligations. The kind of CNS services provided by AAI are enumerated in para 2 below.

The AAI CNS Manual is a controlled document that encompasses all documents referenced within the manual. Referenced documents, therefore, are in effect part of this manual.

2. Classification of Facilities 2.1 Communication Facilities:

(a) HF Air/Ground voice communication facilities; (b) VHF Air/Ground voice communication facilities; (c) Voice switching and control facilities; (d) ATS point to point communication facilities; (e) Voice and Data Recording facilities; (f) Controller Pilot Data Link Communication (CPDLC); (g) Flight information facilities; (h) Electronic briefing and flight plan lodgment service for the use of pilots; (i) Aeronautical databases used in or by a facility. (j) Aeronautical Fixed Telecommunication Network - Automatic Message Switching System (AMSS) - Remote Area Business Message Network (RABMN) (k) Dedicated Satellite Communication Network (DSCN). (l) VOLMET.

2.2 Radio Navigation Facilities: (a) Instrument Landing System (ILS);

(b) Distance Measuring Equipment (DME); (c) VHF Omni-range (VOR); (d) Non-directional beacons (NDB) / Locators; (e) VHF Markers.



2.3 Surveillance Facilities:

(a) Primary surveillance radar (PSR); (b) Secondary surveillance radar (SSR); (c) Surface movement radar (ASDE); (d) Airport Surface Movement and Guidance Control System (ASMGCS);

(e) Automatic dependent surveillance (ADS); (f) Human Machine Interface systems, including Tower Consoles, ATS; .

2.4 Satellite based Facilities: (Under Development) (a) Global Navigation Satellite System ground based augmentation stations or

Facilities; (Refer Chapter 7 of this manual) 2.5 Other CNS Facilities:

(a) ATC Automation system consisting of

(i) Flight Data Processing system (ii) Radar Data Processing system (iii) Repetitive Flight Plan (RPL) System

(b) Airport Terminal Information Service (ATIS); (c) Master / Slave clock system; (d) Uninterruptible and emergency power supplies; (e) Meteorological Display Systems used for ATS.

3. Meeting of Standards

3.1 (a) As a signatory to the Chicago Convention, AAI subscribes to the relevant ICAO definitions and standards unless differences have been published in AIP. As a necessary supplement to ICAO standards and as a mature provider of telecommunication, radio navigation and surveillance services, AAI has implemented a range of services mentioned in para 2, consistent with ICAO requirements.

(b) Conformance with these standards is achieved through the AAI implementation of the relevant Technical Standards and Practices (TSPs), Maintenance Schedules, CNS Circulars and periodic flight inspections of facilities.

3.2 For the above clause “Standards” mean any of the following standards that apply to a service or facility:

(a) An ICAO standard;

(b) Civil Aviation Requirement (CAR) promulgated by DGCA India;

(c) Any other standard included in this CNS Manual.

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4 Provision and Maintenance of CNS facilities

4.1 General Design Considerations

It is required to maintain the CNS facilities to ensure high degree of availability, reliability and integrity in providing Aeronautical Telecommunication, Radio Navigation and Surveillance Services as per the requirements of ICAO. To ensure continuity in service and to reduce equipment failures due to support services, the provision of the following facilities have been made at the airports.

4.1.1 Protected Power Supply system

4.1.1.1 Dedicated electrical power supply is provided to AAI sub station

by the local power supply distribution authority. Standby generators are also located at the substation. In the event of failure of electric power supply the changeover to DG set supply is done automatically. From this substation Power supply distribution to all units and CNS facilities at the airport. 4.1.1.2 The Engineering (Electrical) Wing of AAI is responsible for the maintenance of the power supply system and for providing power supply to different units within the airport.

4.1.1.3 UPS systems of required capacities have been provided in all the essential units to ensure continuous operation of communication facilities. CNS Circular nos. 6 & 7 of 2003 is referred to in this regard. In charge CNS is responsible for maintenance of the UPS.

4.1.2 Air conditioning

4.1.2.1 To reduce failures of equipment due high temperature and humidity central air conditioning is provided to all the CNS units established in the main terminal building. The remote sites are provided with separate air conditioning units according to requirements. 4.1.2.2 The Engineering (Electrical) Wing of AAI is responsible for the maintenance of all the air conditioning plants.

4.1.3 Battery Back-up

4.1.3.1 Provision for the battery back-up is made at the airports for all essential CNS facilities according to the requirements of each airport. The battery back-up system is located centrally at a suitable location in the equipment room and extended to required communication channels and master slave clock system. Suitable battery back up is provided at each navigational site. In charge CNS is responsible for maintenance of the battery back up system.



4.1.3.2 The station in-charge of aeronautical communication station is responsible for the maintenance of battery back-up system. The maintenance is required to be carried out as per the maintenance schedule available at the station. CNS Circular nos. 6&7 of 2003 in this regard also refers.

4.1.4 Non exchange lines

4.1.4.1 Multi-pair non- exchange lines are laid between different units for control, display of status, inter unit-communication, drop circuits, recording of voice and data monitoring of channels and dedicated speech circuits.

4.1.4.2 Lines from EPABX are provided to operational units and positions for providing telephones.

4.1.4.3 CNS personnel are responsible for provision and maintenance of such non exchange lines.

4.1.5 Direct Speech Circuits (DSC) and DIRECT STD/NON STD telephones

4.1.5.1 The DSC and telephones are provided by out side agencies and

maintained by them on rental basis. 4.1.5.2 The DSC lines are extended to concerned ATC operating

positions. 4.1.5.3 Important inter-communication telephones and DSC are provided

through Speech Switching System (SSS) for immediate communications.

4.1.6 EPABX System.

4.1.6.1 Airports Authority of India has provided EPABX system of

required capacity at every airport for communication and coordination among different units and operating positions..

4.1.6.2 The telephone exchange, lines and connected telephones are

maintained by CNS personnel. 4.1.7 Synchronized Time System:

Time system synchronized with UTC is provided in operational units. Technical Standards and Practices (TSP) on time synchronization have been described in CNS Manual Vol. VI Chapter 2.10.



4.2 Provision of CNS Facility For provision of CNS facilities in accordance with standards the following

procedures are adopted:-

4.2.1 Procurement of equipment:

4.2.1.1 The equipment required for providing communication facilities is Procured by CNS (Planning) Directorate, CHQ, AAI after strict Technical evaluations. While procuring the Equipment the concept of ‘redundancy’ (main & standby) with automatic change over from main to stand-by equipment is followed. 4.2.1.2 The equipment procured meets all the technical requirements and Specifications. Equipment with high degree of reliability and ease of Maintenance is purchased. 4.2.1.3 Multiple copies technical manuals for the equipment are also procured along with the equipment. The manuals incorporate Technical specifications, data on accuracy, reliability and integrity, installation, maintenance and operation procedures.

4.2.1.4 The test equipment required for maintenance are normally procured along with the equipment.

4.2.1.5 The selected spare modules and components are procured with the equipment to ease the maintenance.

4.2.1.6 If the number of CNS equipment is procured more than 10 in numbers, then one equipment each is procured for Specialized Maintenance Unit (SMU) and CATC.

4.2.2 Installation and commissioning of equipment

4.2.2.1 The equipment at the required location is installed, site tested and commissioned by technical experts of Radio Construction and ` Development Units (RCDU ) of AAI as per the instructions contained the technical manual of the equipment. CNS equipment procured under turn key project are installed and commissioned by the original equipment manufacturer (OEM) or its authorized representative. 4.2.2.2 The testing is carried out to check the functioning of the equipment as per Parameters specified in the technical manuals. 4.2.2.3 The facility is handed over to concerned ACS and after commissioning, for operation and maintenance.

5 Functional Specifications and Performance Values of Services

Unless differences from the applicable ICAO standards, recommended practices and procedures have been published, AAI subscribes to the relevant ICAO standards and CAR for performance values of service.

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5.1 Functional Specifications

5.1.1 Functional Specification of CNS Equipment

The functional specifications for each facility may be accessed through Manufacturer’s Documentation held at the station. Alternatively, such information may be obtained from TSPs for facilities described in CNS Manual Vol. VI Chapter 2.2 to 2.8.

5.1.2 Availability and Reliability of CNS Facilities

Availability and reliability values are described in Performance Targets for CNS facilities CNS Manual Vol. VI Chapter– 1.

5.2 Derivation of Performance standards

The performance values for availability and reliability are derived from the applicable standards, manufacturers’ specification, site specific parameters, and related operational requirements and compared to their respective measured values. Corrective action is to be taken if differences are found

5.3 Analysis of Availability and Reliability

Availability and reliability analysis are the accepted industry methods used to calculate performance values of services provided. Availability is analyzed on monthly basis. Reliability analysis is progressively being developed. Data is available from fault reports delivered from stations to headquarters. These activities are underpinned by the conduct of System Performance Reviews at CHQ.

5.4 Integrity values of CNS Equipment

Integrity values for each kind of navigation aid facility are defined in Performance Targets for CNS facilities in CNS Manual Vol. VI Chapter – 1.

6 Technical Descriptions 6.1 Station CNS Manual of each ACS shall describe the following items:

(a) The type and location of each facility;

(b) The Technical specification of each kind of facility;

(c) How each facility inter-connects with other facility or service;

(d) The way in which each station monitors each facility to ensure that it is operating in accordance with its technical specification.



7 Safe Operation: 7.1 The Safe Operation of the facilities is achieved by the following:-

a. Normally no revision of design in facility is undertaken as state-of-the art equipment is procured and installed at the stations.

The changes, if any, required in the design of service/facility are carried out by qualified and competent persons after issuance of approval thereof by CNS-OM Directorate at CHQ.

b. The changes to a service or facility are directed by CHQ after examining the need for the same at various levels of management. The services of RCDU and FIU, if necessary, are requisitioned to accomplish the change.

The change in service or facility is designed, tested and implemented following the standard practices.

c. The procedure for commissioning a new service or facility is described in chapter 5 of this manual.

d. The operational performance of services/facilities is actively monitored and historical records of faults and failures are maintained by CNS- OM Directorate. Current performance and trend data is also available in the Directorate in electronic form.

7.2 The Station CNS Manual of each ACS shall describe the following:-

a The procedure that records the way in which each CNS service and each related facility is configured at any time b The procedure to be used to monitor the performance of each service and facility, and to compare the results with the appropriate technical specification. c The procedure to be used if a service fails or a facility fault occurs, including the way in which the failure or fault is to be reported and rectified. d The procedure to be used to:-

i detect and correct any latent defects in equipment. ii change soft-ware to adopt to any changes to the configuration of hard-ware. iii change the design of equipment or facility to adapt to any change to the functional or technical specification. For sub-para d(ii) soft-ware includes any form of data or instructions for electronic device.



8 Facility Operation and Maintenance Plan 8.1 Flight inspection Flight inspection means verification of standards of signal in space of Navigational and Surveillance facility. It is carried out by AAI using its own appropriately equipped aircrafts.

8.2 Operation and maintenance plan for each type of facility is described in each

Station’s CNS Manual.

8.3 Maintenance Personnel

8.3.1 Trained and skilled personnel

8.3.1.1 Airports Authority of India has provided proficient and trained personnel at each ACS for the maintenance of CNS facilities. 8.3.1.2 Quality maintenance is carried out by proficient and skilled

technical Personnel as described below:-

(a) AAI ensures that each maintenance personnel is competent and holds the qualifications consistent with those specified by AAI Corporate Headquarters.

(b) In particular, AAI will ensure that each technical personnel has been

• Appropriately trained; and

• Assessed as proficient, through a proficiency

examination, to maintain a particular model of CNS

System.

(Details of the proficiency scheme are given in CNS Manual Vol. VI Chapter 2.11 and 2.12)

(c) AAI maintains certification record at CHQ for each qualified technical personnel that includes:

• The name of the technical personnel; and

• Describes the kinds of facility or facilities for which the technical personnel is authorized to perform those functions; and

• States the period during which the certificate is effective.

8.4 Technical Maintenance Infrastructure

8.4.1 CNS Workshop: - Every ACS under the control of AAI has a workshop for repairing the faulty modules. The workshop is equipped with test benches, DC Power supplies and Test Equipments. Component level of minor system or defect of minor nature is repaired in the workshop.



8.4.2 Special Maintenance Units (SMU):- SMUs are established at specified airports for component level repairs of un-serviceable modules received from different stations. At present under mentioned SMUs are functioning:

Equipment Station DME (GCEL) Kolkata DVOR (GCEL) Ahmedabad X-BIS (ECIL) Hyderabad X-BIS (Heiman) Delhi RADAR (NGOSCO) Chennai ILS (NORMARC) Chennai Display Monitor (SONY) Chennai DVOR (ASII) Delhi DME (ASII) Delhi ILS (ASII) Delhi NDB (SAC) Delhi DVTR (ASC) Mumbai VHF TX/RX (OTE) Delhi

8.5 Maintenance Support:

The Central Radio Stores Depot (CRSD) located at New Delhi, stocks Spares/ PCBs /Modules /Discreet Components of some of the CNS equipment and provides them to the stations on demand. CRSD on demand also procures some of the spares PCBs /Modules /Discreet Components of the CNS equipment and provides them to the stations.

9. Safety Management System:

AAI has prepared Safety Management Manual. The manual provides the details of AAI Safety Management System (SMS) requirements under each of the safety objectives. These requirements ensure that AAI meets its regulatory obligations, that it meets its “due diligence” requirements in relation to the safety management of the services and regulatory authority which it provides. Elements of the safety management system include:

o Safety achievement

Safety culture Design Safety responsibilities Competency. Change management Operational risk assessment Abnormal operations Documentation Interfaces Management of the SMS



o Safety assurance Safety performance Safety incidents and concerns Safety surveillance

o Safety promotion

Safety communication, consultation and reporting

All personnel display attitudes and behaviours which reflect the primacy of safety in AAI operations, each person has a duty to identify and report factors or events which may impact safety of operations.

10. Agreements

Where AAI uses services provided by external agencies in support of CNS service, formal agreements are established in consultation with Legal Department of AAI to formalize responsibilities of the parties and the required performance standards

11. Post-accident Performance Inspection: 11.1 In the event of an accident/incident, following action shall be taken :-

(a) The CNS facilities likely to involved in accident /incident will be held secured till its inspection is completed. Para 11.1.1 may be seen below.

(b) Multi channel tapes will be sealed. In case of DVTR the DAT will be taken out from the recording system and sealed.

(c) Recording of Voice / Surveillance Data on multi channel Voice / Data recorders of ATC automation system, if applicable, shall be sealed.

(d) Duty officer logbook, maintenance records, maintenance schedules and fault log books shall be sealed.

The sealed records should be kept secured till suitable instructions are received. Further details may be seen at CNS Manual Vol. VI Chapter 2.15.

11.1.1 After an aviation accident or incident occurs and before any action is taken that could change the facility’s performance, a special performance inspection shall be performed as soon as practicable :-

The inspection shall be:

(a) Conducted by experts duly authorized by DGCA in accordance with equipment maintenance schedules & instructions given by the DGCA;

(b) The inspection shall be witnessed by suitably rated CNS maintenance personnel.

11.1.2 A Report of the performance inspection shall be supplied to the DGCA.

11.1.3 Where the performance inspection shows that the facility contributes to a hazard, it shall not be used until it is operating within its technical specification and confirmed by flight check unit.

11.1.4 The TSP on Post Accident investigation may be seen in CNS Manual Vol. VI Chapter 2.8.



12. Test Equipment

Preventive and routine maintenance is carried out by using Built in Test equipment of the facility and other test equipments procured for the maintenance of CNS equipment.

12.1 The following instructions and standards are required to be followed by the stations for the control, calibration and maintenance of test equipment:-

Calibrated test equipment is used in maintenance of a service or facility. Calibration is carried out at prescribed intervals for each type of test equipment

and the measurement standards should be better than the accuracy standards prescribed by the manufacturers.

Records of the calibration of each item of test equipment should be retained at station level.

Each item of test equipment should carry a visual identification of its calibration status, the date that the equipment was last calibrated, and the prescribed calibration periodicity

The calibration of test equipment is highly specialized function and should be undertaken by specialized agencies that are certified as meeting the general requirements for the competence of testing and calibration laboratories of national level.

13 Interruption to Service 13.1 Each station’s CNS manual shall describe the procedure to be used in the event of interruption to service in the following manner:-

a. The procedure to be used if Aeronautical Communication or Radio Navigation or Surveillance service is interrupted.

b. Specify an acceptable recovery time for each service.

c. The procedure to be used if the acceptable recovery time of a service is exceeded.

14 Document Control This information is provided in Chapter 7 of this manual.

15 Security Program Within India, Aeronautical Telecommunication, Radio Navigation and Surveillance facilities are owned and / operated by AAI, and as such are subject to the Security Program requirements of the AAI.

Each site where services are situated is subject to a specific periodic inspection of physical security measures by the Station – in - Charge.

16 Change to Procedures This information is provided in Chapter 8 of this manual.

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Chapter 3 Organizational Structure & Functions

1 General

1.1 Organization, Structure & Functions 1.1.1 Airports Authority of India

AAI is a statutory Public Sector Undertaking of the Govt. of India formed by Act- 95 of 1994 of Parliament and as amended by AAI Amendment Act-43 of 2003. It is governed by a Board of Directors consisting of whole time members as well as part-time members and headed by a Chairman appointed by the Govt. of India.

1.1.2 AAI website Details of organisation structure of AAI are provided at

www.airportsindia.org.in &

www.aai.aero

1.1.3 Postal Address: Airports Authority of India

Rajiv Gandhi Bhawan,

Safdarjung Airport,

New Delhi – 110001

Telephone 011 - 24632930

Fax 011 – 24641088

AFTN VIDDYXAC

E – mail [email protected]

2 Functions of Airports Authority of India: Various functions of Airports Authority of India are listed in Chapter II of the AAI Act, 1994. Further detail of roles, responsibilities and accountabilities of key CNS-OM Executives are provided in the Chapter -13 to this manual.

2.1 Provision of Maintenance of CNS Facilities: 2.1.1 Provisions of maintenance of CNS facilities is one of the essential functions of AAI. While procurement of CNS equipment is carried out under the direction and control of Member (Planning), operation and maintenance of CNS facilities is carried out under the control of Member (Operations) of AAI Board.

2.1.2 While the Executive Director (CNS-P) who is responsible for procurement of CNS/ATM equipment/facilities reports to Member (Planning), the Executive Director (CNS-OM) is head of operation and maintenance of CNS facilities and reports to Member (Operations).

2.1.3 For the purpose of effective control and supervision, the entire CNS organisation is divided into five Regions viz; Northern, North-Eastern, Eastern, Southern and Western region with Regional Headquarters at Delhi, Guwahati, Kolkata, Chennai and Mumbai respectively. The CNS Operation and Maintenance

http://www.airportsindia.org.in/

mailto:[email protected]



within the region is headed by the General Manager (CNS). At metro airports viz; Delhi Kolkata, Chennai and Mumbai the CNS operation and maintenance is headed by an independent General Manager (CNS). Both, the Regional General Manager (CNS) and the General Manager (CNS), metro airport report to the Regional Executive Director, who is overall in-Charge of the Region.

For the Operation and Maintenance of CNS facilities at each airport and enroute stations, an Aeronautical Communication Station (ACS) is established which is headed by an Officer-in-Charge, ACS whose level (Rank) depends upon the size and capacity of each ACS. The Officer-in-Charge, ACS reports to the General Manager (CNS) of the region.

2.1.4 The functions of Air Traffic Management service is carried out by ATM Directorate of AAI.

3 Functions of Directorate of CNS-OM are as follows:

3.1 Hardware/software maintenance at system/module & component level of

• CNS facilities • Automated Air traffic Control System • Security Systems • Passenger Facilitation like PA system, Flight Information Display System

(FIDS), CCTV, etc.

3.2 Regular monitoring of availability & serviceability of CNS facilities. • Monitoring status of facilities on daily, weekly & monthly basis to check

the health of main and standby equipment for improvement of serviceability & availability of facilities.

• Ensuring availability of NAV AIDS of more than 99.20% is achieved. 3.3 Framing of maintenance philosophy

Following activities are done under this heading:- Preparation of preventive maintenance schedules; Establishment of SMUs; Outsourcing maintenance to the OEM.

3.4 Inventory management including spares

• Maintenance of Inventory records • Finalization of spares/surplus items • Disposal of Obsolete / surplus items.

3.5 Finalization & management of maintenance support contract

• Formulation, implementation & performance monitoring of maintenance support contracts with Original Equipment Manufacturers (OEMs).

3.6 Replacement & up gradation proposals including preparation of technical

specifications CNS equipment is replaced based on the following factors:-

• life span of equipment; • Obsolescence due to advancement of technology; • Non availability of maintenance support from manufacturer.



3.7 NOC for construction of permanent structure in the vicinity of airport

• Finalization of NOC criteria with respect to CNS facilities. • Scrutinizing the cases for grant of NOC for construction of new structures

& buildings in the vicinity of Airports as per ICAO provisions/CAR.

3.8 Aeronautical Information Service (AIS) • Collection, verification, compilation & publication of Aeronautical

information through AIP & AIC. • Regular update of information through NOTAM, AIP supplement • Publication & updating of AERADIO.

3.9 Co-ordination with ICAO

Following activities are done:- Coordination with ICAO regional office Bangkok for allocation of

frequency for CNS facilities. Amendments to ICAO Annexes and Documents. Coordination for implementation of regional CNS/ATM plans.

3.10 Management of CNS manpower

• Placement • Posting of CNS executives to ACS stations throughout the country • Maintenance of data base for executing transfers • Implementation of transfer policy • Training: Finalization of training plan in consultation with Principal

CATC for :- - Ab-initio training at CATC for CNS personnel on fresh recruitment - Refresher training at RTC and CATC - Foreign Training at Original Equipment Manufacturer (OEM) Works • Proficiency on CNS systems and equipment

- Co-ordination for written and Practical examinations - Nomination of Boards for practical examination - Declaration of results - Maintenance of proficiency data base - Review of policy

3.11 Operation of communication facilities

• Aero mobile Service on MWARA & RDARA • AFTN using AMSS, LTT, RABMN • Communication pre-flight briefing • Co-ordination with service providers for leased lines for national &

international Data/Speech circuit • Frequency management in co-ordination with

- National Frequency Allocation Plan (NFAP) - Wireless Planning Co-ordination Committee (WPCC)

- Wireless Planning Cell (WPC) of Dept. of Telecom, Govt. Of India - ICAO regional office

• NOC for use of frequency by other than AAI users



• Documentation - Pre-flight information Bulletin

- AFS manual

4. Roles & Responsibilities of CNS-OM Directorate 4.1 The CNS-OM Directorate is responsible to ensure availability & serviceability of CNS facilities installed at various airports in India by regular monitoring, provision of additional maintenance support and issuance of technical guidelines. 4.2 The CNS Directorate oversees

• Maintenance of CNS facilities in conformity with ICAO Standards & Recommended practices & national regulations with view of achieving optimum level of safety for aircraft operations over entire Indian airspace, preparation of maintenance schedules.

• Training of newly inducted CNS officers, including refresher training. • Co-coordination with other concerned organizations in & outside India • Procurement of spares and inventory control through Central Radio Stores Depot

(CRSD), • Component level maintenance of PCBs/ Module of various CNS Equipment

through Central Maintenance Cell and SMUs. • Co-ordination for Flight Inspection activities as per specified schedules.

4.3 Operational Supervision

The dynamic application of supervision of maintenance of CNS facilities rests with CNS officer in charge at their respective stations where various CNS facilities are installed. The CNS officer in charge receives technical & administrative support & guidance from the Regional Head Quarters / Corporate Headquarter. N. B. The job description for CNS executives are given in Chapter 13 to this manual

4.4 CNS Staffing

The CNS (OM) Directorate is responsible to determine CNS Operational & Maintenance Staffing requirement for the country as a whole for staff planning purposes. The staff requirement is worked out taking into account

• No. of operational shifts required to operate and attend the un-serviceability of CNS facility.

• Training and leave reserve. • Vacancies arising due to retirement/resignation of personnel.

4.5 Provision of CNS facilities

4.5.1 The CNS facilities have been provided at

• 63 Airports • 21 Civil enclaves at Defence airfields • 30 en route Aeronautical Communication Stations (ACS)

4.5.2 The list of CNS facilities may be seen at CNS Manual Vol. VI Chapter -3.



4.5.3 The CNS facilities are maintained & operated by about 1511 Electronics/Technical personnel and about 323 Communication (Operational ) personnel.

5 Training on CNS facilities

5.1 Training Philosophy: - Presently personnel at the level of Junior Executive Trainee (JET) are inducted in the CNS department by direct recruitment. The basic qualification of JET is Graduate in Engineering (Electronics & Communication). They are deputed for ab-initio training at CATC (Civil Aviation Training College) Allahabad. On Successful completion of training they are deputed to the field stations for the CNS Maintenance & Operation duties. After gaining sufficient field experience these executives are deputed for training on concept and module level maintenance and operational courses of CNS facilities. They are declared proficient after successful completion of concept and module level courses. 5.2 Training Establishments 5.2.1 Civil Aviation Training College (CATC) The Civil Aviation Training College (CATC) located at Allahabad is a training establishment of AAI dedicated to training in the area of Communication, Navigation & Surveillance (CNS)/ Air Traffic Management. The college also has a TRAINAIR unit for development of Standardized Training Packages (STPs) for various CNS & ATM courses. 5.2.2 Regional Training Centers Besides CATC, there are four Regional Training Centre (RTC) located at Delhi, Mumbai, Chennai and Kolkata. These RTCs conduct training under guidance of CATC. They provide supplementary role to CATC in conducting training. The Maintenance/operation courses of equipments which are not available at CATC are conducted at RTC. 5.3 Types of courses 5.3.1 The CNS Faculty at CATC conducts following types of courses

a. Ab-initio level courses :-

(i) Junior Executive Trainees (Electronics)

b. Concept Level Courses:-

(i) VOR/DVOR (ii) DME (iii) ILS (iv) Primary Radar Concept (v) Secondary Radar Concept



c. Module Level Maintenance Courses:- • HF/NDB - MAT 100TX/RX, MAT 500 TX and SAC NDB • VHF/VCCS/DATIS • XBIS/DFMD/HHMD/PA - Heimann • VOR/DVOR - GCEL – 755 • DME - GCEL -752 • ILS - NM 3500 • AMSS (Maint.) - (Automatic Message Switching System – ECIL )

e. Communication Operation Courses:-

(i) AMS (Aeronautical Mobile Service - HFRT ) (ii) Automatic Message Switching System (AMSS –Operations) (iii) Automatic Message Switching System (AMSS –System Administration) (iv) (i)Aeronautical Information Service (AIS)

f. Refresher Courses:-

(ii) ILS (ii) VOR (iii) DME (iv) Primary and Secondary Radar (v) AMSS- Maintenace (vi) AMSS –Operation (vi) AMSS – system Administration (v) Aeronautical Mobile Service (AMS)-HFRT Operation etc.

g. Other Courses:-

(i) Data Communication & computer Network (ii) Automatic Dependent Surveillance (ADS) concept (iii) Flight Data Processing System (FDPS) concept (iv) Surveillance CCTV concept

h. General courses:-

(i) Instructor Development Programme (IDP)

5.3.2 RTC at Delhi, Mumbai, Kolkatta and Chennai conducts following courses :-

(a) RTC Mumbai :- (i) Primary and Secondary Radar (Raytheon) (ii) Control and Monitoring Display and Automation System (Raytheon ) (iii) Flight calibration of Nav-aids (iv) Automatic Self Briefing System (ASBS)

(b) RTC Delhi :- (i) ILS ASII Model 1100 (ii) ILS ASII Model 2100 (iii)

VOR/DVOR ASII Model 1150 DME (iv) DME ASII Model 1118/1119 (v) Control and Monitoring Display and Automation System (Raytheon ) (vi) Automatic Self Briefing System (ASBS)

(c) RTC Kolkatta :- (i) ILS Normarc Model 7000 (ii) DME Thales (iii) Flight

Calibration of Nav-Aids (iv) Automatic Self Briefing System (ASBS) (v) Automatic Dependent Surveillance (ADS) (vi) Flight Data Processing System (FDPS) concept



(d) RTC Chennai :- (i) HF TX (Zenitel )(ii) Primary and Secondary Radar (NGOSCO) (iii) Sony Monitor (iv) Flight Calibration (v) Automatic self Briefing system (vi) Surveillance CCTV Module

5.3.3 Admission Criteria at ab-intio courses at CATC:

• Junior Executive Trainee (Electronics / Communication) - Degree in Telecommunication / Electronic / Radio Engineering / Elect. Engg with specialization in Electronics OR equivalent. - A good knowledge of English Language written & spoken

5.3.4 Course Examination at CATC & RTC : - At the end of every training Programme, the trainees have to pass a written Examination, as well as practical examination, including viva-voce.

5.4 On the job training & Proficiency

5.4.1 Ab- initio courses :-The CNS officers during the middle of their ab-initio courses at CATC are required to undergo on-the-job training (OJT) at field stations for a specified period. After returning from OJT, the trainees are required to give a group presentation on the OJT undergone by them on CNS Equipment. 5.4.2.CATC courses: - For Module level maintenance courses, the OJT is imparted on CNS Equipment installed at CATC. 5.4.3 RTC Courses: - For courses being held at RTC, the OJT is imparted on equipments available at SMU otherwise OJT is imparted on equipments installed at respective ACS. 5.4.4 Proficiency through open examination: - CNS personnel are encouraged to acquire adequate knowledge and skill on the maintenance and operation of CNS facilities by self learning. For the purpose sufficient hard copies of technical manuals are provided. To ascertain their knowledge and skills, open examination is conducted which consists of:- • A written examination • Practical & Viva-voce . CNS personnel who pass the aforesaid examination are declared proficient. Detailed procedures for acquisition of proficiency are described in CNS Manual Vol. VI Chapter-1.11.

5.5 Annual Training Programme at CATC & RTC :- The annual training Programme of CATC and RTC is prepared by Principal CATC in consultation with CHQ and General Manager (CNS) in charge of RTCs. The training Programme is approved by CHQ.

5.6 Maintenance of Training Records :-

Records of all trained CNS personnel at CATC and RTC are maintained in computer Data Base at CHQ and CATC. A File of training record is also maintained .



Chapter 4

Procedures for site selection of CNS Facilities

1 General: 1.1 The purpose of the document is to provide General guidelines for the selection of site for the installation of CNS Facilities. Detail technical information on siting criteria for CNS facilities is provided in CNS manual Vol. III. The information on criteria for issuance of NOC is described in CNS Manual Vol. VI Chapter 1.13. The detail procedure for site selection of CNS facilities is given in CNS Manual Vol. III. 1.2 The requirement of CNS facility at an airport or enroute station is decided in coordination among CNS – OM, ATM and CNS-P directorates and is projected to AAI Board for approval. After approval, ED, CNS (P) takes action for its procurement. 1.3 After the requirement of a CNS facility at a station is approved, the process of site selection for siting the facility shall be initiated by ED, CNS (P) by referring it to the Siting committee.

2 Composition of Siting Committee: 2.1 CHQ Siting committee:-A CHQ Siting committee shall be constituted comprising the following members: a. One member from CNS-P Directorate – Team Leader. b One member from ATM Directorate. c One member from CNS-OM Directorate d. One member from operational directorate, for siting at Metro Airport. e. One member from concerned engineering wing, as applicable. f. One member from Land Management, as applicable.

Executive Director (CNS-P) will initiate action for constitution of site selection committee. Preliminary Site Selection committee: - ED CNS-P shall also constitute a preliminary Site Selection committee consisting executive posted at CHQ, RHQ and concerned station. At least one member of committee shall be from ATm Directorate. He shall also nominate a Team Leader of the committee.

2.2 The Team Leader of the CHQ Siting committee shall forward the required information (including maps and charts) relating to preliminary site selection to preliminary Site Survey committee at RHQ to determine suitability of one or more probable sites.



3 Selection and Approval of Site:

3.1 The preliminary site survey committee shall carry out the preliminary site survey and submit a detailed report to team leader of CHQ Siting Committee indicating clearly the recommended site. 3.2 The report shall be analyzed by the CHQ Siting Committee and shall recommend one of the proposed sites, if found suitable. If considered necessary, some of the CHQ Siting committee shall visit the station to finalize the site. 3.3 On the recommendation of the Siting Committee, Executive Director (CNS-P) shall formally obtain No Objection Certificate (NOC) from the concerned Directorate before conveying the approval of the selected site. The location of approved site shall be Communicated by ED (CNS -P) To ED (ATM), ED (RCDU), concerned Region and the station. 3.4 On receipt of location of approved Site, ED (ATM) will take action for preparation of IAL procedure. Ed (CNS-P) will follow up the matter with Ed (ATM) for expeditious completion of the task. 3.5 On receipt of location of approved site, ED (RCDU) shall prepare & issue list of civil & Electrical works to concerned Region and Station for initiating related works.

******



Chapter 5

Procedure for Installation of Navigational Aids

1 General:

Radio Construction and Develop Unit (RCDU) based at New Delhi shall be responsible for carrying out installations and commissioning of Radio Communication, Navigational & Surveillance facilities at all the airports in India under the control of AAI except the turn-key projects. Installation and Commissioning of Turn Key projects will be carried out by supplier of equipment or their authorized agency.

2 List of Works: RCDU shall issue detailed list of civil and electrical works on receipt of approval of selected site for the proposed facility. List of Civil and Electrical works in respect of CNs facilities under turn key projects shall be prepared in consultation with CNS-P, RCDU and executing agency.

2.1 Civil Works: The civil works related to building, grading, preparation of site, plinths for antenna systems, trenches etc. will be carried out by civil engineering wing of AAI. The works shall be carried out by Engineering wing (Civil) as per drawings and guidelines contained in list of works. The list of works generally consists of: • Location of site on the grid map. • Layout of the system. • Details of the building. • Details of antennas and monitor antenna foundation. • Details of manhole. • Grading details. • Details for laying of RC cables. • RF cable trenches. • Earthing systems/pits. 2.2 Electrical works:

List of Electrical works along with drawing will be sent to Electrical Engineering wing of AAI to carry out the electrical works for concerned facility. The drawing and list of works generally includes:

• Electrical load. • Requirement of stabilizer. • Requirements of Mains Distribution Board/Secondary Distribution

Boards. • Requirement of air conditioners. • Light and fans. • Mast Lights



In respect of turn key projects the Civil and Electrical works will be carried out as per agreed list of works by authorized agency indicated in agreement.

3 Installation of a facility:

3.1 Installation Team: ED (RCDU) will nominate a Project officer. The installation team shall be constituted by ED (RCDU) and will consist of the following: a. Technical/Electronics executives b. Mast riggers c. Staff from mechanical section.

3.1.1 Technical Personnel from the concerned ACS will also be attached with the RCDU team during the period of installation.

3.2 Installation Guide lines: 3.2.1 On receipt of information by RCDU about installation of CNS System, guidelines will be prepared which may consist of two parts:-

3.2.1.1 General installation guidelines for the Specific CNS equipment – this will be in accordance with the installation manual supplied by the manufacturer. 3.2.1.2 Site Specific Installation guidelines: For each selected site a site specific guidelines will be prepared which will consist of information regarding equipment layout, about R.F and remote cable layout, termination boxes and other information related to the installation at the site. These guidelines will be prepared by RCDU.

3.2.1.2.1 Project Officer of RCDU will constitute an installation team and provide them manufacturer’s manuals, installation guidelines to facilitate advance preparation for the installation. 3.2.1.2 RCDU shall issue site-specific instructions and guidelines to installation team for carrying out the installation. The guidelines shall comprise the following:- a. Procedures for installation CNS equipment at local site. b. Procedures for testing of equipment.

3.2.2 Installations of minor CNS System: Executive Director (CNS-P) after due coordination and consultation with Executive Director (CNS-OM) may authorize RHQ/Station to undertake installation of minor equipment such as VHF TX/Rx, Voice logger equipment etc. RCDU shall provide installation guidelines and offer assistance, if requested by the station.

3.3 Commissioning Flight Inspection:

3.3.1 For commissioning of a CNS facility which requires flight inspection following action shall be taken:-



(i) After completion of ground tests and adjustments of facility under installation as per Equipment manual and DOC 8071, coordination shall be done with Flight Inspection Unit (FIU) for flight inspection of the facility. (ii) The facility shall be flight inspected and certified by FIU as per Doc 8071 and CNS Vol. IV. (iii) After the flight inspection of the facility, all equipment parameters and field readings shall be recorded and preserved for future reference and comparison during maintenance. (iv) Debriefing reports of the facility are to be taken regarding performance of the facility from the users.

3.3.2 For commissioning of a CNS facility which does not require flight inspection following action shall be taken:- (i) After completion of ground tests and adjustments of facility under installation as per Equipment manual, all equipment parameters and field readings shall be recorded and preserved for future reference and comparison during maintenance. (ii) Debriefing reports of the facility are to be taken regarding performance of the facility from the users.

3.3 Handing over of facility:

3.3.1 On completion of the flight calibration, the facility shall be handed over to the station as per guidelines given in handing over sheet. The Officer-in-Charge, ACS shall verify the parameters and field readings recorded in the Handing over sheets. Clarifications, if any, will be sought by him from the Installation Team and shall take over the facility after fully satisfying him with operational parameters and quality of installation. 3.3.2 The facility which does not require flight calibration will be handed over after satisfactory debriefing reports. 3.3.3 The handing over report shall be signed by the station-in-charge or his nominee and the in-charge of the Installation team.

3.4 Handing over of the facility installed on Turn Key basis:-

For CNS facility which has been installed on turn key basis a System Site Acceptance Test (SSAT) shall be carried out as per pre agreed procedure. On successful completion of SSAT the facility shall be handed over to the station. 3.5 Commissioning of Navigational and Surveillance Facility: Once the site of installation of N & S facility is approved, a parallel action is taken by ED (FIU & RCDU) for installation and flight inspection of the facility and by ED (ATM) for preparation of IAL procedure. By the time the facility is installed and flight inspected, IAL procedure is prepared and kept ready by ATM Dte. On receipt of information about the successful flight inspection of the facility, the IAL procedure is forwarded to DGCA for carrying out the flight trials by Airline operator. On completion of flight trials, and approval by DGCA, the Navigation and Surveillance facility is commissioned by issuance of suitable Notam.

*****



Chapter 6

Procedures of Flight Inspection

1 Introduction

1.1 Flight Inspection of Radio and Visual 'Navigation Aids’ involves flight evaluation and certification of the signal-in-space. The evaluation process utilizes specially equipped instrumented aircraft which carries out specific flight maneuvers. Data acquired thus on the quality of signal in space, shall be analyzed to arrive at the specific performance Parameters. These parameters, in turn, shall determine the certification of facility status for which Flight inspection is mandatory as per International Civil Aviation Organization (ICAO).

1.2 Airports Authority of India has its own Flight Inspection Unit (FIU) based at Delhi and is headed by Executive Director. Flight Inspection Unit has a fleet of flight inspection aircrafts equipped with fully automatic computerized flight inspection systems (AFIS – 200). All types of Navigation Aids including CAT-III ILS can be inspected with the system available. Directorate of CNS Planning & Directorate of RC & DU also coordinate with FIU for scheduling of flight inspection of newly installed facilities and for trans-installed facilities.

1.3 The flight inspection is carried out as per standards mentioned in CNS Manual Vol. IV, Doc. 8071 and Annex 10 Vol. I

2 Type of Inspection

2.1 As needed the flight inspection team may be required to undertake any of the following inspection:

a. Site Evaluation: to determine the suitability of a site, if required

b. Commissioning / Re-commissioning: to commission a facility after the installation is completed.

c. Routine: to check the facility as per specified periodicity. d. Special: to check the facility after a major maintenance and on special request.

3 Periodicity

3.1 Following periodicities shall be followed by AAI

Facility Periodicity

a. ILS 150+ 30 days b. DVOR 720+ 60 days c. CVOR/DME 240+ 30 days



4 Inspection Procedure for ILS.

4.1 Localizer Flight Inspection: Following Flight Inspection Checks shall be carried out on the Localizer equipment:

• Identification Coding Checks • Mod-Balance and Mod-Depth Checks • Course width and Clearance Check • Course Structure, Course Alignment and Flyability Check • High angle clearance check • Alignment Monitor Alarm check • Width Monitor Alarm check • Coverage and Power Monitor Alarm Check • Polarization Check • Course width Symmetry Check. • Operation on Standby Power Supply.

4.2 Glide Path Flight Inspection

Following Flight Inspection checks shall be carried out:-

• Antenna NULL Check • Phasing Check • Sector width and Glide Angle Check • Glide angle and Course Structure Check • Monitor Checks • Position Alarm • Width Alarm • Azimuth Coverage • Operation on standby power supply

5 VOR Flight Inspection

Following Flight Inspection Checks shall be carried out on the VOR.

• Sensing and Rotation check. • Identification Coding Check • Modulation Level Check • Orbit Check • Radial check • Polarization Check • Coverage Check • Monitor Alarm check



6 DME Flight Inspection

All DME Checks shall be carried out in conjunction with checks on their associated facilities (VOR & ILS).

Note: Flight inspection tests can be added or skipped based on the type of flight inspection.

6.1 Desired results and Tolerances:

6.1.1 Identification: The identification code should be clear and correct throughout the area of coverage. The ID Code frequency should be 1350 Hz. The ID should be properly synchronized with that of the associated facility. 6.1.2 Distance accuracy: The indicated Slant range distance must be within the limits 6.1.3 Coverage: The area of coverage of the DME shall be at least that of its associated facility (VOR & ILS) 6.1.4 Signal Strength (AGC): The signal strength must be at least –82 dBm throughout the area of coverage. 6.1.5 Squitter Rate: The normal squitter rate should be 2700 ± 90 pps. On certain type of facilities, rates as low as 700 pps are normal. 6.1.6 False replies: No false replies should be present which could result in false locks-on within the area of coverage. This may occur at any location especially in the presence of vertical nulls.

7 NDB Flight Inspection NDB are not subjected to flight inspection except where operationally required

8. Detail procedure of flight inspection is available in CNS Manual Vol. IV.

*****



9. Table for Acceptable Limits for ILS

S.No. Parameter Lower limit Ideal value/Result Upper limit Remarks

Localizer

1 Alignment in micro amps 8 0 -8

For Cat I (in-house limits)

5 0 -5 For Cat II(in-house limits)

2 0 -2 For Cat III(in-house limits)

2 Mod Sum 36% 40% 44% On path

38% 40% 42% On path, For Cat III(in-house limits)

36% 40% 60%

Off course Modsum for installations after year 1999.

3 Coarse Width 0.96*W W 1.04*W (in-house limits)

4

Minimum clearance 150side,clearance Sector 150µamp

Minimum clearance 90 side, clearance Sector -150µamp

Minimum clearance150 side, course Sector 175µamp

Minimum clearance 90 side, course Sector -175µamp

5 Path Structure -- in µ amps

…upto pt. A 30µamp

...between pt. A and B --- for Cat I 15µamp

linear decrease from 30 to 15

--- for Cat II & III 5µamp


...between pt. B and pt. C -- for Cat I 15µamp

...between pt. B and pt. T -- for Cat II 5µamp

...between pt. B and pt. D -- for Cat III 5µamp

...between pt. D and pt. E -- for Cat III 10µamp

linear increase from 5 to 10µamp

6 Polarization check,µ amps

20 Deg acft bank on course.

15 0 -15 Cat I 8 0 -8 Cat II 5 0 -5 Cat III

7 Usable distance in NM 25

Sat AGC. CP current & Mod sum.

8 Identification SAT

Subjective assessment for proper keying and no interference on DDM

9 Course Width symmetry-150 : 90 40 50 60



10 Coverage Chkd under pwr. alarm condn.

…LLZ at 17 NM +/- 35 Deg -84dBmW/m2 SAT


…LLZ at 25 NM +/- 10 Deg -84dBmW/m2 SAT


11 High angle clearance 150µa SAT Sat AGC. CP current & Mod sum.

12 Monitor check

Alignment shift 90 side alarm -15µa Cat I

-10.7µa Cat II -8.4µa Cat III

Alignment shift 150 side alarm 15µa Cat I

10.7µa Cat II 8.4µa Cat III

Course Width narrow alarm 0.83*W

Course Width wide alarm 1.17*W

….Minimum clearance, clearance Zone 135µa Under wide CW alarm

….Minimum clearance, course Sector 160µa Under wide CW alarm

…Power monitor 50%

SAT coverage and performance for a single frequency LLZ.

80%

SAT coverage and performance for a dual frequency LLZ.

13 Performance on standby supply

SAT approach on standby supply.

Glide Path 1 Glide angle 0.925*θ Θ 1.075*θ For Cat I & II 0.96*θ Θ 1.04*θ For Cat III

2 Sector Width 0.48 *θ

..Upper half Sector Width Cat I & II 0.07*θ 0.12*θ 0.14*θ

...Upper half Sector Width Cat III 0.10*θ 0.12*θ 0.14*θ

...Lower half Sector width Cat I 0.07*θ 0.12*θ 0.14*θ

...Lower half Sector width Cat II & III 0.10*θ 0.12*θ 0.14*θ

3 Max Fly up current in micro amps 190

4 Above path Clearance in micro amps 150

must not fall below 150 until 1.75*θ

5 Mod Sum 75% 80% 85%

6 Path Structure: in µ amps



…upto pt. A Cat I,II &III 0 30

...between pt. A and pt. B --- for Cat I 30

--- for Cat II & III 20


...between pt. B and pt. C -- for Cat I 30

...between pt. B and pt.T -- for Cat II & III 20

7 Azimuth coverage right/left of rwy -65dBmW/m2 SAT

Sat AGC and Flyup +/- 8 deg of rwy

8

Obstruction Clearance check on approach SAT

Sat OBS clr at 180μA fly up condn.

9 Performance on stby supply SAT

Sat Approach on stby supply

10

Monitor check

…High angle alarm 1.075*θ …Low angle alarm 0.925*θ

…LHSW narrow alarm LHSW-0.037*θ Cat I

0.75*LHSW Cat II & III …LHSW wide alarm LHSW+0.037θ Cat I 1.25*LHSW Cat II & III

….Max Fly up current under wide alarm condn. 180

11 Power monitor 50% SAT

SAT coverage and performance for a single frequency GP.

80% SAT

SAT coverage and performance for a dual frequency GP.

Outer Marker

1 Pass through distance in meter 400 600 800

2 Keying SAT Da-da-da-dah

3 Performance on statndby supply SAT

4 Tone freq. ( in Hz ) 390 400 410

5 Az coverage 150 μA right/left of rwy(LLZ) SAT

SAT coverage under alarm condition.

Middle Marker

1 Pass through distance in meter 200 300 400

2 Keying SAT di-dah-di-dah

3 Performance on stby supply SAT

4 Tone freq. ( in Hz ) 1268 1300 1332

5 Az coverage 150 μa right/left of rwy(LLZ) SAT

SAT coverage under alm condn.



10. Table for Acceptable Limits of VOR

S.No. Parameter Lower limit

Ideal value/Result Upper limit Remarks

VOR 1 Polarization -2º 0 +2º 2 Pattern Accuracy Alignment -2º 0 +2º Bends -3.5º 0 +3.5º Roughness -3º 0 +3º Scalloping -3º 0 +3º

3 Coverage field strength 90µv/m >= 90µv/m or -107 dBW/m2 or -77 dBmW/m2

4 9960 Hz deviation 15 16 17 5 9960 Hz Modulation depth 0.28 0.3 0.32 6 30 Hz Modulation 0.28 0.3 0.32 7 Ident clear 8 Bearing Monitor -1º +1º



Chapter 7

GPS Aided GEO AUGMENTED NAVIGATION (GAGAN) — INDIAN SBAS

1. GPS Aided GEO AUGMENTED NAVIGATION 1.1 GAGAN – is an Indian SBAS ( Satellite Based Augmentation System) Programme jointly developed by Indian Space Research Organization (ISRO) and Airports Authority of India to implement SBAS over Indian airspace. GAGAN is being executed into three phases to demonstrate the in house SBAS technology over Indian airspace. The implementation of the first phase by mid 2007 will eventually lead to the operational phase of the GAGAN over the Indian Airspace. 1.2 Objectives:

• Development of indigenous capability in SBAS and to play a constructive and significant role in this area.

• Develop the region specific ionospheric correction model algorithm. • Development of expertise and skilled manpower in the SBAS area.

1.3 Initial Configuration of GAGAN: The project involves establishment of a full complement of Wide Area Augmentation System (WAAS) inclusive of the Indian Reference Station (INRES), Indian Navigation Land Uplink Station (INLUS), Indian Mission Control Centre (INMCC), a Geostationary Navigation payload in C and L bands and with all the associated Software and Communication links. The implementation will take into account the aspects of inter-operability with other systems like US – WAAS, Europe – EGNOS, Japan – MSAS etc., and also validation according to ICAO SARPS. 1.4 Description of Elements of GAGAN:

1.4.1 Indian Reference Stations (INRES):

1.4.1.1 Indian Reference Stations (INRES) collect measurement data and broadcast messages from all GPS and GEO satellites in view and forward to Indian Mission Control Centre (INMCC). About eight Indian Reference Stations (INRES) are planned during the TDS phase. Eight proposed locations of INRESs are given below: Delhi, Ahmedabad, Bangalore, Thiruananthapuram, Kolkata, Guwahati, Port Blair, and Jammu 1.4.1.2 Future INRES: Future INRES stations are: Indore, Bhuj, Amritsar, Chennai, Nagpur and Lucknow.



1.4.2 Indian Master Control Centre (INMCC)

1.4.2.1 A Master Control Centre (INMCC) will be situated at Bangalore. The INMCC shall consist of a main frame computer and a host of secondary computers connected to a Network. 1.4.2.2 The INMCC is required for: Network management (communication and computer), integrity monitoring, iono-tropo model delay estimation, wide area corrections, orbit determination and command generation.

1.5 Indian Navigation Land Uplink Station (INLUS)

1.5.1 A Navigation Land Earth Uplink Station (INLUS) receives messages from the Indian Reference Stations through the Indian Master Control Centre, format those messages for GPS compatibility and transmit them to the GEO satellites for broadcast user platforms. The INLUS also provides GEO Satellite ranging information and corrections to the GEO satellite clocks. Message formats and timing will be according to the WAAS Functional and Performance specification N. FAA-E-2892. 1.5.2 Only one INLUS is planned in TDS phase. IMCC and INLUS will be collocated in the selected location, which is likely to be at a place belonging to AAI near Bangalore airport.

1.6 Navigation payload on board the Indian Satellite GSAT – 4

1.6.1 Features of GAGAN payload are: • Uplink in C – Band, • Down Links at L1 and L5, • EIRP 35 dBw, Global coverage Beam, • Bandwidth of 20 MHz for both L1 and L5 and Indigenous design. • Communication links • Infrastructure for ionospheric studies required for region specific in the SBAS algorithm.

1.7 Implementation Timescale

1.7.1 Technology Demonstration Systems (TDS): This phase requires implementation of a minimum configuration system which would demonstrate the capability of the system to support up to precision approach over limited region of the Indian airspace and will serve as proof of concept. The performance objective of this system is to meet the ICAO SARPs requirements. The TDS consists of eight Indian Reference Stations (INRES), an Indian Mission Control Center (INMCC), two Indian Land Uplink System (INLUS), space segment, required communication links and necessary software for navigation and communication during the TDS phase. In the scope of this phase second frequency L5 is being incorporated in both space and ground segments. The TDS was completed in May, 2006. The observed results were found to be meeting the expectations.

1.7.2 Initial Experimental Phase (IEP): In this phase, TDS will be expanded to cover the entire Indian airspace and requisite redundancies will be added to the system. The system will be available for trial operations and the data collected by



Airports Authority of India (AAI) during such trial operations would be analyzed to further improve the system, wherever considered necessary, to achieve compliance of ICAO SARPs. The IEP will be completed in a period of 18 months after the development, testing and validation of TDS.

1.7.3 Final Operational Phase (FOP): during this phase, the GAGAN program will be matured. Extensive tests would be carried out to establish the system stability of various elements of the system as a whole. The system will be put in extensive use for its evaluation with respect to ICAO SARPs. Certification and validation of the system will be completed before declaring the system operational. The FOP will be completed in a period of two years after the successful implementation of IEP. Because of operational reasons, these three phases will overlap on some of the items.

1.8 Current status of GAGAN Infrastructure for installation of INRES at Delhi, Kolkatta, Guwahati, Port Blair, Ahmedabad, Bangalore, Jammu and Trivanthapuram is in place. All eight INRES equipment have been installed and seven stations have been linked through Optical Fiber Cable (OFC) to INMCC for connectivity test. All the station data are being recorded at INMCC, Bangalore. The installation of GPS-TEC at all eighteen stations has been completed. Ionospheric data from eighteen TEC stations is being analyzed by number of Indian universities and R&D institutions involved in Ionospheric studies for development IONO-TROPO model that is suitable for Indian airspace. After doing the extensive analysis, it has been concluded that seven more GPS-TEC receiver are required in the mid region of India due to Equatorial Indian Anomaly (EIA) phenomena where Ionospheric variation is very high. It is further observed that scintillation is very active up to 60° elevation based on twenty months data. Infrastructure for INMCC and INLUS at Bangalore is already in place and installations of GAGAN equipments have been completed. Infrastructure for providing standby connectivity through V-sat from all INRES to INMCC is in progress, which will be completed by end 2006. A geo-stationary payload in C-Band and L1 and L5 frequencies will be carried by GSAT-4 (fabricated and developed by ISRO, India) placed at 82 ° E. GSAT-4 is scheduled for launch by March, 2007. Integration test of the system has been completed and results are found to be satisfactory. I1t is being considered to use INMARSAT for the space segment for the interim period. 1.9. Ionospheric data analysis Results

In the Indian equatorial and low latitude region because of large variations in the altitude of the peak electron density from equator to crest and beyond (250 to 650 km) and from day to night the use of a constant value of IPP altitude of 350 km is likely to introduce errors in the conversion of STEC to VTEC; particularly at low elevation angles of the GPS satellite passes because of the presence of large electron density gradients in and around the EIA region. Fig-1 and 2 represent comparison of the VTEC using different technique with 5 degrees and one degrees grid size. Study reveals passes with elevation angles >50° are good for conversion of STEC to VTEC in the Indian zone. TEC varies from 5 to 50 TEC units at the equator and from 5 to 90 TEC units at the crest region, which corresponds to range variations of about 1 to 8 meters at the equator to 1 to 15 meters at the crest region. These values will go up in high solar sunspot anomaly (HSSA)



periods. The intensity of scintillations (S4 index) is minimum at the equator (3 to 6dB) and maximum around the anomaly crest region (>10 dB). The occurrence of scintillation is high during the post-sunset to midnight hours. Occurrence of strong scintillations (>10 dB) is confined to 15 to 25o Geog. Latitudes. Scintillations mostly occur during the equinoxial months with practically no activity during summer and winter months during this low SSA periods of 2004-2005. Percentage of scintillation during January 2004 to July 2005 of different intensities is depicted in Fig .3, Fig.4 and Fig. 5. Total number of 1360 bubbles is observed (mostly during the equinoxial months March, April, September, October of 2004 and February, March of 2005) over the entire Indian region. This number of bubbles & loss of locks will certainly go up during the HSSA period creating more problems to the Trans-Ionospheric communications and navigation. 1.10. Technology support of development and maintenance of GAGAN Indian Space Research Organization (ISRO) in association with the AAI will be developing the entire system through all the stages of TDS, IEP and FOP. ISRO will continue to provide technology support, maintenance and replenishment of the space segment of the system, as and when required, to maintain the system in robust condition.

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Chapter 8

Document Availability and Control at the Station

1. Standards:

The stations shall keep those documents that are necessary as basic references for the CNS services and functions.

1.1 The documents that shall be required are:

a. CNS Manual Vol. I to VII.

b. Relevant Volumes of ICAO Annex 10 Vol.I to V, Annex XI and Annex XV. c. DOC 8071, DOC 8400, DOC 7169, DOC 8259, DOC 9684, DOC 9688, DOC 9705 d. Civil aviation Requirement in respect of CNS facilities as notified by DGCA. e. Other required documents which may be station and service specific.

f. Station CNS manual containing the following :-

(i) Human Resource: (Describing Name, Designation, Proficiency

Held by CNS personnel, their deployment in general maintenance / shift operations.)

(ii) Technical description giving details of the following:

• The kind and location of each facility. • The technical specification of each kind of facility; • How each facility interconnects with any other facility or

service? • The way in which the service provider monitors each facility to

ensure that it is operating in accordance with its technical specifications.

(iii) Safe Operation describing the following:

• the procedure that records the way in which each CNS service and each related facility is configured at any time.

• the procedure to be used to monitor the performance of each Service and facility, and to compare the results with the appropriate technical specification.

• The procedure to be used if a service fails or a facility fault occurs, including the way in which the failure or fault is to be reported and rectified.

• The procedure to be used to report and rectify any defects found during operation and maintenance of the facility.

• The procedure to be used to :

Detect and correct any latent defects in equipment.



Change in soft-ware to adopt to any changes to the configuration of hard-ware.

Change the design of equipment or facility to adapt to any change to the functional or technical specification.

(iv) Facility operation and maintenance plan: describing for each kind of facility, an operation and maintenance plan that includes the following:-

• The procedures for maintenance, including the procedures used for repair;

• A description of the system used to schedule maintenance;

• The interval between performance inspections and the method used to determine the interval;

• A copy of the operating and maintenance instructions for the facility;

• An analysis of the workload of Maintenance Personnel and key personnel that take into account the numbers of these people and their qualifications

• If one or more flight inspections are necessary;

(iv) Interruption to service describing the following: • the procedure to be used if an Aeronautical Communication or

Radio navigation or surveillance service is interrupted . • Specify an acceptable recovery time for each service. • The procedure to be used if the acceptable recovery time of a

service is exceeded.

2 Document and Data Control Processes 2.1 Standards:

2.1.1 Control of Documents: a. The authority to control, amend and publish the CNS manual shall Rest with the Executive Director (CNS-OM) at AAI CHQ. b. The Officer-in-Charge, ACS shall control and amend the station CNS Manual. c. Only the authenticated current versions of the documents shall be maintained by the officer-in-Charge, A.C.S. d. A master copy of all the documents shall be securely held. 2.1.2 Instructions and documents issued by CHQ pertaining to CNS manual shall be Placed in the respective CNS manual.

3. Study of Station CNS Manual by executives posted at the station: Officer-in-Charge, ACS shall ensure that each executive posted at a station studies and comprehends the Station CNS manual within a period of one month from the date of reporting at the station. For this purpose a copy of station CNS Manual shall be made available. A certificate from the executive shall be obtained stating clearly that he has read and understood all the provisions of Station CNS Manual.

*****



Chapter 9

Record Systems Related to Maintenance of Facilities

1. General:

1.1 Adequate and accurate records are necessary elements of a safety management of the system. Every station is required to have a Record System to identify, collect, index, store and maintain records necessary to provide a traceable history over the complete life cycle of services and facilities. The record kept shall include the following:

a. Records of Installations, initial testing, commissioning and re-commissioning of the facility as prepared by the Installation team of RCDU and handed over to the station while handing over the facility / equipment to the station.

b. Records of flight inspection results in respect of commissioning and periodic Checks of facility/facilities

c. History of maintenance: consisting of daily, weekly, Monthly, quarterly/six

monthly and yearly maintenance (as applicable ) carried out on each equipment d. Site log-books:

• shall be maintained for each facility; • shall indicate date and time of updated occurrence of each activity; • shall be signed by the personnel carrying out the activity and shall be

countersigned by the unit in-charge;

e Fault log-book containing following details shall be maintained for each CNS facility / service:

• date and time of occurrence of fault. • observed indication of fault. • Full technical details of fault analysis, diagnosis and rectification

procedure. • date and time of repair

f History of Maintenance showing date, time occurrence, type of fault, Corrective action and expenditure incurred. This may be compiled on monthly basis. g. Records of Test equipments used in maintenance along with their Calibration dates. h. Records of unserviceable modules/PCBs for repair and return to Special Maintenance Units (SMUs). The CNS circular 01 of 2006 in this regard also refers.

****



Chapter 10

CNS Circulars



NS/LA/03/ 14/05/03

CNS Circular 1 of 2003

Subject: Lightening Arrestor for CNS facilities

It has been observed that at times the failure of the CNS facilities is due to lightening, which indicates poor earthing systems. This problem has to be handled expeditiously to avoid the facility failure due poor earthing. It is suggested that the following points should be checked for proper earthing of a CNS facility. DVOR:

1. Counter poise should have four independent earthing pits for proper earthing. This earthing system should not be looped with any other earthing systems.

2. The equipment should have independent earthing system. 3. DVOR counterpoise should also have four lightening arrestors and their

heights should be more than side band antennas. 4. DVOR monitor antenna should have independent earthing system and

provision of lightening arrestor should be made above the monitor antenna.

5. Co-located DME (HP) antenna should have independent earthing system for lightening arrestor and it should be kept above the antenna height.

6. The earthing strips joint should be brazed instead of joining with nut and bolts.

7. The earthing resistance should be kept less than one ohm.

RADAR:

1. Radar equipment should have independent earthing systems and should not be looped with any other earthing system.

2. Radar antenna building should have two earthing pits diagonal to each other and lightening arrestor should be connected to this earthing pits.

3. The earthing strips joint should be brazed instead of joining with nut and bolts.

4. The height of the lightening arrestor should be kept more than the radar antenna height.

INSTRUMENT LANDING SYSTEM (ILS):

a. Localizer



1. The equipment should have independent earthing system. 2. Antenna system should have two earthing pits and should not be

looped and lightening arrestor should be connected with it. 3. Height of the lightening arrestor should be more than height of the

LLZ antenna. 4. The earthing strips joint should be brazed instead of joining with nut

and bolts. 5. The height of the lightening arrestor should be kept more than LZ

antenna height.

b. Glide path

1. The equipment should have independent earthing system. 2. Antenna system should have one earthing system and lightening

arrestor should be connected with this. 3. DME antenna should have independent earthing system. 4. The earthing strips joint should be brazed instead of joining with

nuts and bolts. 5. The height of the lightening arrestor should be one feet above the

GP mast.

c. Marker and locators

1. The Marker and Locator equipment should have their independent earthing system.

2. The antennas of the both system should have their own independent earthing pits.

3. The lightening arrestor should be placed above the antenna or the highest point in vicinity of equipment building.

4. The earthing strips joint should be brazed instead of joining with nuts and bolts.

NON-DIRECTIONAL BEACON (NDB):

1. The NDB equipment should have their independent earthing system. 2. The antenna should have its own independent earthing pits. 3. The lightening arrestor should be placed one foot above the antenna. 4. The earthing strips joint should be brazed instead of joining with nut

and bolts.

The equipment and its associated earthing system should be checked as per above checklist and report the compliance to the CHQ at the earliest.

Sd/-

(A. K. Misra) Executive Director (CNS-OM)

14.5.2003



No. NS/4Gen/240/03 Dated: Sep 4, 2003

CNS Circular No. 2 of 2003

Subject :- VOR Aerodrome Check points

As per the guidelines contained in Annexure 10, Volume-I, Attachment-E and para 5.2.11 & 5.4.4 Annexure 14, the detail information on VOR aerodrome checkpoints is appended below for reference.

SELECTION AND USE OF VOR AERODROME CHECK-POINTS

1. GENERAL

1.1 When a VOR is suitably located in relationship to an aerodrome, the pre-flight checking of an Aircraft VOR installation can be facilitated by the provision of suitably calibrated and marked CHECK-POINTS at convenient parts of the aerodrome.

1.2 Following guidelines are provided for consideration in selecting the points to be used.

2. SITING REQUIREMENTS FOR CHECK-POINTS 2.1 The signal strength of the nearby VOR has to be sufficient to ensure

satisfactory operation of a typical aircraft VOR installation. In particular, full flag action (No flag showing) must be ensured.

2.2 The check-points should, within the limits of operating convenience, be located

away from buildings or other reflecting objects (Fixed or Moving) which are likely to degrade the accuracy or stability of the VOR signal.

2.3 The observed VOR bearing at any selected point should ideally be within + or –

1.5 degrees of the bearing accurately determined by survey or chart plotting.

Note:- The figure of plus or minus 1.5 degrees has no direct operational significance in that the observed bearing becomes the published bearing : however where a larger difference is observed, there is some possibility of poor stability.

2.4 The VOR information at a selected point should be used operationally only if found to be consistently within + or - 2 degrees of the published bearing. The



stability of the VOR information at a selected point should be checked periodically with a calibrated receiver to ensure that the + or – 2 degrees tolerance is satisfied, irrespective of the orientation of the VOR receiving antenna.

Note:- The tolerance of + or – 2 degrees relates to the consistency of the information at the selected points and includes a small tolerance for the accuracy of the calibrated VOR receiver used in checking the point. The 2-degree figure does not relate to any figure for acceptance or rejection of an aircraft VOR installation, this being a matter for determination by Administrations and users in the light of the operation to be performed.

2.5 Check-points, which can satisfy the foregoing requirements, should be selected in consultation with the operators concerned. Provision of check-points in holding bays, at runway ends and in maintenance and loading areas, is usually desirable.

MARKING OF VOR CHECK-POINTS

2.6 Each VOR check-point must be distinctively marked. This marking must include the VOR bearing which a pilot would observe on his aircraft instrument if his VOR installation were operating correctly

USE OF VOR CHECK-POINTS

2.7 The accuracy with which a pilot must position his aircraft with respect to a check-

point will depend on the distance from the VOR station. In cases where the VOR is relatively close to a check-point, particular care must be taken to place the aircraft’s VOR receiving antenna directly over the check-point.

VOR AERODROME CHECKPOINT MARKING 2.8 When a VOR aerodrome checkpoint is established it shall be indicated by a

VOR aerodrome checkpoint marking and sign. A VOR aerodrome checkpoint marking shall be centered on the spot at which an aircraft is to be parked to receive the correct VOR signal. A VOR aerodrome checkpoint marking shall consists of a circle 6 meter in diameter and have a line width of 15 cm. as shown below.



A. – WITHOUT DIRECTIONAL LINE B. – WITH DIRECTIONAL LINE

When it is preferable for an aircraft to be aligned in a specific direction, a line should be provided that passes through the center of the circle on the desired azimuth as shown above. The line should extend six meters outside the circle in the desired direction of heading and terminate in an arrowhead. The width of the line should be 15 c.m.

Note: - VOR aerodrome checkpoint marking should preferably be white in color but should differ from the color used for taxiway markings. To provide contrast, marking may be bordered with black.

VOR AERODROME CHECKPOINT SIGN 2.9 A VOR aerodrome checkpoint sign shall be located as near as possible to the

check point and so that the inscriptions are visible from the cockpit of the aircraft properly positioned on the VOR aerodrome check-point markings. Note: A VOR aerodrome check-point sign shall consist of an inscription in black on a yellow background.



2.10 The recommended inscriptions on a VOR check-point sign should be in accordance with one of the alternatives shown below: -

VOR is an abbreviation identifying this as a VOR check-point; 116.3 is an example of the radio frequency of the VOR concerned 147 is an example of the VOR bearing, to the nearest degree, which should be indicated at the VOR check-point; and 4.3 NM is an example of the distance in nautical miles to a DME collocated with the VOR concerned.

The guidelines mentioned above should be examined for establishing the VOR check-point at your airport. Sd..

(A.K.MISRA) Executive Director (CNS-OM)



Ref No. NS /SA/410/03 Dated 24 -11- 03


PROVISION OF INFORMATION ON THE OPERATIONAL STATUS OF NAVIGATIONAL AIDS

As per Annex-11, Para 7.3.1, ATS units shall be kept currently informed of the operational status of non-visual navigation aids & those visual aids essential for take –off , departure, approach & landing procedure within their area of responsibility and those visual & non-visual aids for surface movement. Annex-11, Para 7.3.2, states that information received on the operational status, and any changes thereto, of visual and non-visual aids referred to in Annex-11, Para 7.3.1 should be received by the appropriate ATS unit(s) on a timely basis consistent with the use of aid(s) involved. Major types of equipment associated with ATC services include:

1) NDB (Non Directional Beacon) 2) DVOR/VOR (Doppler VHF Omni Range / VHF Omni Range) 3) DME (HP)/DME(LP) (Distance Measuring Equipment – High Power / Low

power) 4) ILS (Instrument Landing System) 5) Markers/ Locators

The respective functional and operational requirements for the equipments listed above are discussed below:

1) NDB : As per Doc. 9426 (Air Traffic Services Manual) Para 3.1.1, NDB transmits non-directional signals in the low & medium frequency bands, between 190 to 1750 KHz. With appropriate airborne equipment, the pilot can determine the bearing of the station or can “home” on the station. The specific identification of NDB is normally broadcast in Morse code. As per Doc.9426, Para 3.2.1.b, NDBs used in conjunction with ILS are designated as “Locators”.



As per Annex-10, Vol-I , Para 3.4.8.1 for each NDB suitable means shall be provided to enable detection of any of the following conditions at an appropriate location :

a) Decrease in radiated carrier power of more than 50 % below that required for the rated coverage.

b) failure to transmit the identification signal

c) Malfunctioning or failure of the means of monitoring itself.

Failure of any of the above results in alarm indication in the local / remote unit installed at appropriate locations. 2) DVOR/ VOR: As per Doc.9426, Para 2.1.1, the VHF omni-directional radio range (VOR) is an omni directional (3600 of azimuth) range station which operates in the very high frequency (VHF) band of the radio spectrum between 108 to 118 MHz , sharing the band from 108 to 112 MHz with the localiser component of ILS. The basic navigation guidance derived from a VOR is a radial line of position (magnetic) w.r.t. a known geographic point (the VOR site). The radial line is read in degrees of azimuth from magnetic North & is technically accurate to within ± 2.00. Doc.9426, Para 2.1.2 states that the identification of specific VORs is provided by means of Morse code identifier or by voice recording. VORs can be remotely operated by means of telephone lines from the control facility. Where standby or dual equipment is provided, an automatic transfer between the equipment is made whenever the operating VOR is subject to malfunction. As per Annex-10, Vol-I, Para 3.3.7.1 , suitable equipment located in the radiation field shall provide signals for the operation of an automatic monitor . The monitor shall transmit a warning to a control point , and either remove the identification & navigation components from the carrier or cause radiation to cease if any one or a combination of the following deviations from established conditions arises :

a) a change in excess of 10 at the monitor site of the bearing information transmitted by the VOR.

b) a reduction of 15% in the modulation components of the radio frequency signals voltage levels at the monitor of either sub carrier , or 30 Hz amplitude modulation signals or both.

Annex-10 , Vol-I Para 3.3.72 states that failure of the monitor itself shall transmit a

warning to a control point & either a) remove the identification & navigation components from the carrier ; or b) cause radiation to cease.



3) DME (HP)/DME (LP) As per Doc. 9426, Para 2.1.6, DME is a useful adjunct to, & is normally co-located with VOR. In such cases, the VOR is referred to as “VOR/DME”. A DME provides a continuous digital read out of the slant range distance, in nautical miles, between the aircraft and the DME site. DME operates in the UHF band between 962 MHz & 1213 MHz. As per Annex-10 , Vol-I, Para 3.5.4.7.1 , means shall be provided at each transponder site for the automatic monitoring and control of the transponder in use. Annex-10 Vol-I Para 3.5.4.7.2.1, states that in the event of any of the conditions specified below occur, the monitor shall cause following action to take place:

a) a suitable indication shall be given at a control point ; b) the operating transponder shall be automatically switched off ; and c) the standby transponder , if provided, shall be automatically placed in

operation. As per Annex-10 , Vol-I , para 3.5.4.7.2.3 , the monitor shall cause the actions specified in 3.5.4.7.2.1 above if the spacing between first and second pulse of the transponder reply pulse pair differs from the nominal value by 1μs or more. As per Annex-10 , Vol-I , Para 3.5.4.7.2.4 , the monitor should also cause a suitable indication to be given at a control point if any of the following conditions arise : a) a fall of 3 dB or more in transponder transmitted power output; a) a fall of 6 dB or more in the minimum transponder receiver sensitivity; b) the spacing between the first and second pulse of the transponder reply pulse pair

differs from the normal value specified in Annex-10 , Vol-I , Para 3.5.4.1.4 by 1μsec or more ;

c) variation of the transponder receiver & transmitter frequencies beyond the control range of the reference circuit.

The monitor system shall provide a Normal/Warning/Alarm indication at a control point. Same status shall be extended to ATC tower. d) ILS As per Doc.9426, Para 5.1.1.1, the ILS is the ICAO standard, non-visual navigation aid to final approach and landing. Ground equipment consists of two highly directional transmitting systems and two marker beacons aligned along the approach. The directional transmitters are known as localiser and glide slope transmitters. The total landing system of which ILS is an integral part generally provides the pilot with: a) guidance information regarding the approach path derived from the localiser and

the glide slope ;



b) range information at significant points along the approach path by marker beacon or continuous range information from Distance Measuring Equipment (DME) ;

c) visual information in the last phase of flight from approach lights , touch down and center line lights , runway lights.

Doc.9426 Para 5.1.1.2 states that at selected locations where the provision of marker beacons at the defined locations creates difficulties, they may be replaced by a DME which is associated with ILS. As per Annex-10 , Vol-I , para 3.1.2.1 the ILS shall comprise the following basic components :

a) VHF Localiser equipment, associated monitor system, remote control and indicator equipment;

b) UHF Glide path equipment, associated monitor system, remote control and indicator equipment ; c) VHF Marker beacons, associated monitor systems, remote control and indicator equipment

As per Doc 9426, Para 5.1.1.4 the localiser provides course guidance throughout the descent path to the runway threshold from a distance of 18 NM from the antenna between a height of 300 m above the highest terrain along the approach path and 1350 m above the elevation of the antenna site. Distinct off-course indications are provided throughout the areas of the operational service as under:

a. 10 º either side within a radius of 18 NM from the antenna ; b. 35º either side within a radius of 10 NM from the antenna.

As per Annex-10 Vol-I Para 3.1.3.11.1, of , the automatic monitor system shall provide a warning to the designated control points and cause one of the following to occur , within the period specified in Annex-10 , Vol-I, Para 3.1.3.11.3.1, if any of the conditions stated in Annex-10 Vol-I Para 3.1.3.11.3.2 below persists:

a) radiation to cease ; b) removal of the navigation & identification components from the carrier ; c) reversion to a lower category in case of facility performance Categories II &

III localisers where the reversion requirement exists. As per Annex-10, Vol-I, Para 3.1.3.11.2, the conditions requiring initiation of monitor action shall be the following:

a) for Facility Performance Category-I localisers , a shift of mean course line from the runway center line equivalent to more than 10.5 m or the linear equivalent 0.015 DDM , whichever is less , at the ILS reference datum ;

b) for Facility Performance Category-III localisers , a shift of the mean course line from the runway center line equivalent to more than 6 m at the ILS reference datum ;



c) in the case of localisers in which the basic functions are provided by the use of a single -frequency system , a reduction of power output to less than 50% of the normal ;

d) in the case of localisers in which the basic functions are provided by the use of a two- frequency system , a reduction of power output for either carrier to less than 80% of the normal , except that a greater reduction to between 80% and 50% of normal may be permitted.

e) change of displacement sensitivity to a value differing by more than 17% from the nominal value for the localiser facility

As per Annex-10 , Vol-I , Para 3.1.3.11.2.1 , in the case of localisers in which the basic functions are provided by the use of two – frequency system , the conditions requiring initiation of monitor action should include the case when the DDM in the required coverage beyond ± 10 0 from the front course line , except in the back course sector, decreases below 0.155. As per Doc. 9426 , Para 5.1.1.5 , the UHF Glide slope transmitter within the frequency band from 329.15 MHz to 335 MHz radiates its signals only in the direction of localiser front course . As per Annex-10 ,Vol-I, Para 3.1.5.7 ,the automatic monitor system shall provide warning to the designated control points and cause radiation to cease if any of the following conditions persist : a) shift of the mean ILS glide path angle equivalent to more than minus 0.075 θ to

plus 1.10 θ from θ ; (Typical value of θ is 30 ) b) in the case of ILS glide paths in which the basic functions are provided by the use

of a single - frequency system , a reduction of power output to less than 50% of the normal;

c) in the case of ILS glide paths in which the basic functions are provided by the use of a two - frequency systems , a reduction of power output for either carrier to less than 80% of the normal , except that a greater reduction to between 80% and 50% of normal may be permitted.

d) for Facility Performance Category I- ILS glide paths , a change of the angle between the glide path and the line below the glide path (150 Hz predominating) at which a DDM of 0.0875 is realized by more than ± 0.0375 θ ;

e) for Facility Performance Category III - ILS glide paths , a change of displacement sensitivity to a value differing more than 25 % from the nominal value ;

f) lowering of the line beneath the ILS glide path at which a DDM of 0.0875 is realized to less than 0.7475 θ from horizontal;

g) a reduction of DDM to less than 0.175 within the specified coverage below the glide path sector.



e) VHF Marker Beacons

As per Annex-10 , Vol-I , Para 3.1.7.1.a &b, there shall be two marker beacons in each installation . When the installation comprises only two marker beacons, the requirements applicable to the middle marker and to the outer marker shall be complied with. Annex-10 , Vol-I Para 3.1.7.1.c of states that the marker beacons shall produce radiation pattern to indicate predetermined distance from the threshold along the ILS glide path. As per Annex-10 , Vol-I , Para 3.1.7.6.2 , the middle marker shall be located so as to indicate the imminence , in low visibility conditions , of visual approach guidance. Annex-10 , Vol-I Para 3.1.7.6.3 ,states that outer marker shall be located so as to provide height , distance and equipment functioning checks to aircraft on intermediate and final approach. As per Annex-10, Vol-I Para 3.1.7.7 , suitable equipment shall provide signals for the operation of automatic monitor . The monitor shall transmit a warning to control point if either of the following conditions arises: a) failure of the modulation or keying ; b) reduction of power output to less than 50 % of normal . As per Annex -10 , Vol-I Para 3.1.7.7.2, for each marker beacon , suitable monitoring equipment should be provided which will indicate at the appropriate location a decrease of the modulation depth below 50%. In addition to above, Status Indication of the facility shall be provided at ATC center which will indicate the status of navigational aids on real -time basis. The status Indicator at ATC center shall work in conjunction with the remote control and status unit of the facilities installed in the equipment room. The provision of status indication in ATC center is one of the basic requirements for aircraft operation from safety point of view. The compliance report of the provision of the status indictor in ATC center may be sent to CHQ at the earliest. Sd..

( A. K. Misra) Executive Director (CNS-OM)



Ref No. NS /SA/410/03 Dated: 2 -12- 2003

CNS Circular No. 4 of 2003 Subject:-Time in Air Traffic Services

To maintain correct and synchronized time for different operational units of ATS, the following systems are in operation at the Airports.

1. Digital Master/Slave system of clocks.

2. Clock system through GPS.

3. Stand alone clock systems.

The following requirements are listed in ICAO Annexure 11 Para 2.24, for provision of time in air traffic services.

3.24.1 Air traffic services units shall use Coordinated Universal Time (UTC) and shall express the time in hours and minutes and, when required, seconds of the 24-hour day beginning at midnight.

3.24.2 Air traffic services units shall be equipped with clocks indicating the time in hours, minutes and seconds, clearly visible from each operating position in the unit concerned.

3.24.3 Air traffic service unit clocks and other time recording devices shall be checked as necessary to ensure correct time to within ± 30 seconds of UTC. Wherever data link communication are utilized by an air traffic services unit, clocks and other time recording devices shall be checked as necessary to ensure correct time to within 1 seconds of UTC.

3.24.4 The correct time shall be obtained from a standard time station or, if not possible, from another unit which has obtained the correct time from such station.

3.24.5 Aerodrome control towers shall, prior to an aircraft taxiing for take off, provide the pilot the correct time, unless arrangements have been made for the pilot to obtain it from other sources. Air Traffic services units, shall in addition, provide aircraft with the correct time on request. Time checks shall be given to the nearest half minute.

The above ICAO guidelines are required to be followed strictly in maintaining the time in different operational units:-



i) Where master / slave system is in operation, the master clock is to be corrected/ synchronized every day in the morning at 0230 UTC from the time signal obtained from All India Radio ( before start of the news bulletin) or from a standard time station. All the slave clocks are required to be synchronized with the master clock. The clocks can also be corrected and synchronized through GPS wherever such system is installed.

ii) The time of stand alone working positions like RADAR,AMSS,DVTR & other positions is required to to be synchronized with the time of the master clock.

iii) The stations where stand alone clocks are provided at working positions, the time is to be corrected/synchronized with the time signal obtained from All India Radio OR from a standard time station.

iv) The clocks and other time recording devices shall be checked as necessary to ensure correct time to be within specified limits.

v) An entry in the daily shift log book is to be recorded for correcting/ synchronizing of all operational clocks.

The compliance report on the provision of time in Air traffic services may be sent to CHQ at the earliest.

Sd.. ( A. K. Misra)

Executive Director (CNS-OM)



Ref No. NS /SA/410/03 Dated: 5-12-2003


Subject:- Use of Standard Language for communication in ATS

It has been observed that regional language and non-standard phraseology is being used excessively for inter-unit communication for co-ordination and exchange of ATS messages by the HFRT controllers as well as other ACS units.

The following requirements are listed in Para 2.27.1 & 2.27.2 of Annex 11 of ICAO.

2.27.1 An air traffic services provider shall ensure that air traffic controllers speak and understand the language(s) used for radiotelephony communications as specified in Annex 1.

2.27.2 Except when communications between air traffic control units are conducted in a mutually agreed language, the English language shall be used for such communications.

In view of above it is required to follow the following instructions.

a) Use “English” as the only language for exchange of communications for co-ordination with air traffic control units.

b) Use Standard phraseology for exchange of communications between air traffic control units.

The compliance of the above may please be ensured.

Sd..

(A.K.Misra) E.D.(CNS-OM)



Ref. No. NS/SA/410/03 Dated: 15/12/03 CNS CIRCULAR No. 6 of 2003. Sub: Air Traffic Services Requirements for Communication – Back up

capabilities thereof. Wherever required, the “State” has implemented the requirements listed in Para 6.1 to 6.3 of ICAO Annex 11 and para 8.3.1 of ICAO DOC 4444** regarding provision of Aeronautical Mobile Service, Aeronautical fixed service and Movement control service at various airports under the control of Airports Authority of India. A copy of the above relevant para is enclosed as Annex – I for ready reference. To ensure high degree of reliability and availability of various Communication Channels and equipment, the following have been provided:-

a) Redundancy of equipment (main & stand by) b) Stand by power supply/Battery back up over and above the dedicated power

supply. c) Inherent reliability of equipment. d) Controlled temperature & humidity e) Adequate test equipment. f) Quality maintenance by trained/skilled personnel.

It is required to maintain/comply the above provision strictly for optimum efficiency of operation. Sd…

(A.K. Misra) ED ( CNS -OM)

Para 8.3.1 of ICAO Document 4444**

8.3.1 The level of reliability and availability of communication systems shall be such

that the possibility of system failures or significant degradations is very remote. Adequate backup facilities shall be provided.

Note: Guidance material and information pertaining to system reliability and availability are contained in Annex 10, Volume I and the Air Traffic Services Planning Manual (Doc. 9426).



Ref. No. NS /SA/410/03 Dated: 26 -12-2003


Subject: Radar Systems –Backup Capabilities

Airports Authority of India (AAI) has provided Radar Systems at various Airports used in provision of the Air Traffic Services (ATS). The systems are being maintained to provide high level of availability, reliability and integrity of ATS. The requirement of Para 8.1.1 of ICAO Doc-4444 on radar systems capabilities is given below:- 8.1.1 Radar systems used in the provision of air traffic services shall have a very high level of reliability, availability and integrity. The possibility of system failure or significant system degradations which may cause complete or partial interruptions of service shall be very remote. Back-up facilities shall be provided Note 1:- A radar system will normally consist of a number of integrated elements, including radar sensor(s), radar data transmission lines, radar data processing system, radar displays. Note2: Guidance material and information pertaining to use of radar and to system reliability and availability is contained in Annex -10, Volume 1 and the Air Traffic services Planning Manual ( Doc 9426) To ensure high level of availability, reliability and integrity in operation of the Radar systems, the following have been provided in the Radar installation at stations.

1. Redundancy of equipment.( Mains and Standby) 2. Standby power supply / battery back up over and above dedicated power

supply. 3. Inherent reliability of equipment 4. Controlled temperature and humidity ( Air conditioning) 5. Installation of fixed targets at known locations and processing the data

received from targets. 6. Adequate test equipment & spares 7. Maintenance schedules as per requirement s of the equipment maintenance. 8. Quality maintenance by trained / skilled personnel.

It is required to maintain / comply the above provisions to achieve high level of efficiency in operation. It is also required to document the data on faults observed in the equipment serviceability and performance of the equipment in the form of Log book and Maintenance Schedule etc.

Sd.. ( A. K. Misra)




Ref No. NS /SA/410/03 Dated 5-01-2004

CNS Circular No. 1 of 2004.

Subject: Automatic recording of Surveillance Data.

Surveillance data from Primary and Secondary radar equipment provided at different airports is being recorded automatically and continuously in the hard disc of computer. It is required to take back-up of the recorded data files everyday for retention as is being done in the case of voice recorded tapes. The recommendations of Para 6.4.1 of ICAO Annex -11 on recording of surveillance data is given below:- 6.4.1 Automatic recording of surveillance data. 6.4.1.1 Recommendation:—Surveillance data from primary and secondary radar equipment or obtained through ADS, used as an aid to air traffic services, should be automatically recorded for use in accident and incident investigations, search and rescue, air traffic control and surveillance systems evaluation and training. 6.4.1.2 Recommendation: --- Automatic recording should be retained for a period of at least fourteen days. When the recordings are pertinent to accident and incident investigations, they should be retained for longer periods until it is evident that they will no longer be required. To meet the above recommendations, the following instructions are required to be followed:--

1. A back-up of the previous day recorded files is to be taken every day on the prescribed tape, from the Hard disk.

2. The previous day backup is to be taken every day at a fixed time. The day is to be

reckoned from midnight to midnight.

3. The files of the previous day data should be deleted, after backup of the data is taken on the tape.

4. The recorded tapes are required to be labeled properly with date of recording and

details of the recorded files.

5. The recorded tapes are required to be preserved in the tape library under safe custody of a designated responsible officer.

6. To reduce the number of empty/recorded tapes in circulation, it is required to

erase the recorded tapes after a period of 30 days from the date of recording except when the tapes are required to be preserved for a longer period.



7. When the recordings are pertinent to accident and incident investigations, they should be retained for longer periods until it is evident that they will no longer be required.

8. Till such time, a stand alone tape replay display position is provided at every

radar station, the recorded tapes, whenever required may be replayed from maintenance position or from one of the operational position without interrupting the normal operation, as far as possible.

Sd…

(A.K. Misra) ED (CNS-OM)



Ref: CNS/SA/410/03 Dated: 16th January, 2004

CNS Circular No.2 of 2004

Sub: VOLMET Broadcasts service As per recommendations of Para 4.4.1 of ICAO Annex 11 and as

determined by Regional Air Navigation agreements for the requirements of VOLMET Broadcasts from Kolkata and Mumbai, VOLMET broadcast service is provided on High Frequency (HF) radiotelephony as per details provided in Para 11.6 of ICAO Annex 3.

The standard Radiotelephony phraseology is required to be used in the broadcasts of VOLMET as recommended in Para 4.4.2 of Annex 11 and the guidance material provided in coordination between ATSs, Aeronautical Information services and Aeronautical Meteorological Services (DOC 9377), Appendix I. Sd..

(A.K.MISRA) Executive Director (CNS-OM)



Ref : CNS/SA/410/03 Dated: 20.01.2004.

CNS Circular No.3 of 2004.

Sub: Aeronautical fixed service - (ground-ground communications)

Airports Authority of India (AAI) is providing ground-ground communications facilities by direct speech / or data link communication for air traffic services purpose. Depending upon the requirements at each airport, for the provision of communication facilities in accordance with the provisions of Para 6.2.1, 6.2.2, and 6.2.3 of ICAO Annex 11 (copy enclosed), and to meet the requirement of times for establishment of communication, the following communication channels have been provided.

1. Dedicated hot lines. 2. Value added hot lines. 3. Direct speech circuits. 4. Direct telephones. 5. Subscriber trunk dialing (STD). 6. International trunk dialing. 7. Speech switching system (SSS). 8. Voice communication control system (VCCS). 9. Intercom. Telephones. 10. EPABX telephones. 11. Automatic message switching system (AMSS). 12. Voice logging systems (digital and analogue)

The stations are required to maintain the assigned communication channels

efficiently so that ground to ground communication for air traffic services can be established within the desired time limits as stipulated in above paras. Stations are also required to keep a proper record of assigned channels.

Sd… (A K Misra) ED (CNS-OM)



Ref No. CNS/DW/205/03 Dated: 17th March, 2004 CNS Circular No. 4 of 2004

Sub: Disposal of Old / Dismantled Equipment

It has been observed that disposal action is not being taken for a long time for the CNS Equipment withdrawn from operation. Such inventory continues to be maintained at the station for a long time, thereby increasing the unnecessary inventory and blocking the useful space. The dismantled equipment sometimes is stored even in the operational area / equipment room, which adversely affects the maintenance and operation of the equipment in use. In order to avoid such situation, it is advised that the following action on obsolete / dismantled equipment be taken immediately.

1. The concerned station will initiate the necessary survey report action of all such equipment, which is replaced, and the new equipment is commissioned within a month through proper channel to seek CHQ approval in principle.

2. The GM (Com) of the region to monitor that the dismantled / old equipment is disposed of quickly.

3. A consolidated list of all equipment, which have been withdrawn from operation more than three years ago in the region and not yet disposed off, shall be submitted by the GM concerned to CHQ for information and review.

4. The list of dismantled / old equipment stocked at the station shall be submitted along with six monthly returns.

Sd…

( A.K. Misra) Executive Director (CNS-OM)



File No. NS / ILS–workshop / 267 /04 Dated 12-08-2004

Circular No.5 of 2004 Normarc ILS General Maintenance - Workshop held at

Chennai on 4-5th July 2002.

General

1. Maintenance Schedule shall be followed meticulously. 2. On-line UPS shall be provided for both LLZ and GP. The

provision of the UPS is to be made by respective RHQ. 3. Spares of programmed EPROM’s should be available at site.

Programming of EPROMs is the responsibility of SMU. Stations if not having the spare EPROMs may demand the same from SMU.

4. All stations should configure the CAT-I ILS to COLD standby mode instead of HOT standby mode and necessary configuration shall be made in the system accordingly.

5. No unserviceable card should be kept at station and it should be sent immediately to SMU for repair, with fault report and observations.

Hub Center for distribution of ILS cards / Modules.

For storing the spares of Normarc ILS 3500 / 7000 series, HUB

stations suggested are as follows:

For Normarc 3500 Series ILS

HUB Station where spares to be stored

Stations to be covered by HUB

Trivandrum Trivandrum, Calicut, Mangalore Chennai Chennai, Bangalore, Hyderabad,

Coimbatore Kolkata Kolkata, Udaipur Nagpur Nagpur, Rajkot, Indore, Aurangabad



For Normarc 7000 Series ILS

HUB Station where spares to be stored

Stations to be supplied by HUB

Jaipur Jaipur, Varanasi, Lucknow, Jammu, Khajuraho, Amritsar

Chennai Chennai, Vizag, Trichy, Madurai Kolkata Kolkata, Patna, Bhubaneshwar, Ranchi Ahmedabad Ahmedabad, Bhopal, Bhavnagar,

Baroda Guwahati Guwahati, Dibrugarh, Dimapur, Imphal,

Lilabari, Agartala

Decision Taken:

1. Fault logbooks containing detection of fault, observation, action taken for rectification of fault with tests carried out, shall be maintained and kept up to date.

2. Flight inspection schedule shall be finalized 3 months in advance

and should be sent by FIU to all regions and stations so that the stations are aware of the inspection dates and accordingly plan their maintenance/ checks schedule well in advance.

3. It shall be ensured that in case of deviation from the schedule

date of flight inspection, the station shall be given at least seven days prior notice to plan and test the system and keep the system ready for flight inspection.

4. During flight inspection, there were difficulties faced in

communication phraseology used. After deliberation it was decided that a document like the one which was developed by FIU for GCEL ILS, should be made by FIU and circulated to all stations. The document will include the pre-calibration checks to be carried out, site conditioning etc. Similar document should be made for all facilities i.e. VOR, DME, & ILS.

5. In CATC training, arrangements shall be made to train the

officials on Ground (field) adjustments and handling of required test equipments including vector voltmeter.



Advisory note for Upkeep of ILS Equipment:

1. To protect the system from the surge and transients, which are the major causes for breakdown, the feasibility of operating the facility on battery or On-Line UPS operation shall be explored and implemented.

2. All module/card level maintenance should be carried out using

anti-static kit. Proper grounding of the system should be ensured.

3. All steps should be taken for protecting the system from

lightening. The standard lightening arresters shall be provided at all sites and periodical inspection shall be carried out. If any deviation from previous reading is found, corrective action shall be initiated.

4. De-humidifiers shall be installed to control humidity. The

provision of wall paneling, double door and cubical before the entrance to equipment room using antistatic measures shall be ensured to have dust free environment.

5. The critical area for ILS system should be properly graded.

Sd….

(A.K.Misra) Executive Director (CNS-OM)

File No. NS-07/ILS/General/701/04 Dated:24-08-2004



Circular No.6 of 2004

Identification Signal of ILS Localizer. It has been decided to implement amendment related to Identification signal of Localizer as per amendment no. 74 dated 04.11.1999 Para 3.1.3.9.3 of Annex. 10 Vol.I as mentioned below: 3.2.3.9.3 The identification signal shall employ the International Morse

Code and consist of two or three letters. It may be preceded by the International Morse Code signal of the letter “I”, followed by a short pause where it is necessary to distinguish the ILS facility from other navigational facilities in the immediate area.

The short pause will be equivalent to interval between letters and shall

not be less than the duration of 3 dots. For details of dots and dashes, their duration and rate of transmission, refer to Para 3.1.3.9.4 of Annex. 10 Vol. I

(amended 04.11.1999).

All ILS stations are to carry out changes in localizer identification code accordingly, if not done hitherto. De-briefing reports should be taken immediately after carrying out the changes. A compliance report to this effect may be sent to this office.

Sd.. (A.K.Misra)

Executive Director (CNS – OM)



Ref. No. NS/Circular/03 Dated: 28/10/2004

Circular No. 7 of 2004

Subject: Operation of DVOR / DME (HP) Based on the recommendation of workshops on maintenance of DVOR / DME (HP) held at Delhi from 29th April to 1st May, 2004 for ASII DVOR / DME and at Ahmedabad from 7th to 8th May 2002 for GCEL & AWA DVOR / DME, the following guidelines are issued: 1. Maintenance Schedules of the equipment are to be strictly followed. 2. The temperature inside the Nav-aid room should be maintained at 22º ± 1º temperature and humidity measuring device should be installed in equipment room. 3. Provision of adequate voltage stabilization either by use of electronic voltage stabilizers cascaded with spike suppressors or using constant voltage stabilizer (CVT). 4. Equipment and Airconditioner should not be connected to the same phase of AC mains power supply. 5. Provision of “Lightning arrestors” on the counterpoise and monitoring antenna and “Surge Protectors” across remote lines for protection of equipment from lightning. 6. Provision of anti-static kit on the working table and anti-static flooring in the equipment room to avoid the anti-static discharge. This should be mandatory for all new installations. 7. Provision of “Smoke detectors” at site to auto cut-off the power supply and warning at Equipment room. 8. Area below the counterpoise should be concretized to stop wild vegetation. 9. As far as practical, power supply system to equipment may be kept ‘ON’ H- 24 basis irrespective of watch hours of station. After watch hours, R.F radiation may be switched ‘OFF’ from remote and switched ‘ON’ 30 minutes prior to commencement of watch hours to enable stabilization of radiated parameters. Airconditioner should be kept ‘ON’ on H – 24 basis of possible. 10. Power output of each DVOR other than enroute DVORs may be reduced to 70 Watts to avoid overheating of RF power amplifier. This should be done during next flight calibration and parameters particularly coverage limits, to



confirm that required coverage requirement is fully met, be checked. If reduction of power output reduces coverage requirement, the power should be increased till the coverage is met and proper records should be kept in this regard. This supersedes the earlier CHQ letter No. 19019/6/99-COM(M) dated 24/07/2001. 11. All stations should immediately send the unserviceable modules/PCBs to the respective SMU for repair and return. 12. Spare PCBs / modules shall be stocked at four regional centres one in each region i.e. Kolkata, Delhi, Bangalore & SMU Ahmedabad. 13. Regular interaction between SMU and field stations for efficient and prompt maintenance support through internet and other means should be done. All Station-in-Charges should ensure strict compliance of the above for optimum efficiency of VOR/DVOR/DME (HP) operation. Sd…. ( A.K. MISRA ) Executive Director (CNS – OM)



File No. AAI/NS/Maint-Schedule/251/04/ Date /01/2006

CNS Circular No. 01 Of 2006

Sub: Documentation and preservation of maintenance records of CNS facilities. Following guidelines will be followed for documentation and preservation of maintenance records of CNS facilities: -

1.Preservation of maintenance records of CNS facilities.

(i) Routine Maintenance Schedules: - Reports on Routine Maintenance

Schedules i.e Daily, Weekly, Monthly, Quarterly, Half Yearly and Annual as applicable to CNS equipment shall be maintained and retained as per below: -

(a) Daily, Weekly and Monthly :- One Year. (b) Quarterly, Half Yearly and Yearly :- Five Years.

(ii) Handing over report (Proof of Performance), History /Fault Log Book: -

These records shall be maintained and retained throughout the life of facility.

(iii) Shift Log Book and Communication Returns: - These records shall be maintained and retained for a period of one year.

(iv) Test Equipment Calibration Records: Test equipments such as signal

generators, oscilloscope etc. must be calibrated on a periodic basis. The relevant records shall be retained at station up to five consequent reports.

2. Retention of Flight Inspection Reports and Data:

(i) The commissioning flight inspection report and data recordings shall be retained throughout the life of facility.

(ii) Reports and data recordings for last five Flight Inspections shall be retained. Any special flight inspections, carried out during this period shall also be retained.

(iii) Five consecutive records of the calibration of flight inspection system shall be retained by Flight Inspection Unit (FIU).

Page ….1/2



3. Retention of Data required for Investigation: -

Any of the above records and other related data, if required by investigating authority for the purpose of enquiry etc. shall be retained till specific written order is issued on matter.

Note: - Maintenance schedules approved by CHQ are available for CNS equipments. If maintenance schedule is not available for any CNS equipment, same should be brought to the notice of CHQ for further action. ..Sd..

(S C Goswami) ED (CNS-OM)



No.AAI/GM(N&S//Misc./05 Dt : 4th Jan., 2006

CIRCULAR NO. 2 OF 2006

INTIMATION OF MAJOR FAILURES OF CNS FACILITIES

In the event of occurrence of following types of major failures of CNS facilities at an airport/ACS station, immediate intimation shall be given to CHQ.

1. Communication :- 1.1 Failure of Air-to-ground VHF and HF channel having adverse impact on flight

operations. 1.2 Failure of ground-to-ground communication (including telephone, Direct Speech

Circuit, Data link circuit etc.) resulting in serious impact on flight operation.

2. Navigation facilities :-

Non-availability of navigational facilities like ILS, DVOR, DME, NDB which is likely to cause diversion/disruption of flights from the airport.

3. Surveillance and Automation System : Non-availability of facility causing serious impact on the operation of flight from/to airport.

GM(Com) of ACS at Metro airports, Airport Directors and O/In-charge of ACS ( where post of Airport Director is not available) will immediately communicate the date, time and nature of occurrence to the control room of CMG, Corporate Hqrs. through Telephone/ Fax/E-mail is given here under :- Ops Control Room:-

Tel – 011-24610843/24610848 Fax – 011-24693963 Email Id- [email protected]

The duty officer of control room will intimate the occurrence to ED(CNS-O&M) at his office/residence telephone number or his Mobile No. as given here under :-

Mobile: 9810937070

mailto:[email protected]



In case of non-availability of ED(CNS-O&M), the information should be given to GM(N&S) at the following numbers : Office 011-24619159, Residence 011-26124961, Mobile No. 9818135846

Please note that the arrangement will be effective immediately and does not supersede other prevailing means of intimation of events/incidents.

Sd- (S.C.Goswami)




Chapter -11

Performance Targets for CNS facilities

(Availability and Reliability Standards for CNS Facilities) 1 Introduction

The monitoring and analysis of in-service performance of CNS facilities against design specification and operational requirement is a key activity in assuring the integrity and safety of service. This specification identifies the availability and reliability standards applicable to AAI Radio Navigation Aids. These standards provide a reference level of service against which facilities are designed and delivered. The performance of technical assets is monitored, reviewed and reported against these standards. The standards help to ensure that safety critical services are being delivered to an appropriate standard.

2 Purpose

2.1 This document sets out the key requirements, principles, and standards applying to CNS Facilities

2.2 The values for each of the following basic parameters, as relevant to each service type, shall be checked and calculated for analysis, review and corrective action.

3 Process 3.1 To review the performance targets for each facility, every station is required to

generate the following:-

a) Availability: This performance parameter is to be calculated for duration of one calendar year i.e. From 1st Jan to 31 December.

b) Mean Time between Failures (MTBF) :- This parameter is to be calculated

for

a. each channel of the facility. b. For the complete facility.

N.B :- MTBF is to be calculated separately for each channel of the facility and for the complete system which may be having redundancy.

3.2 The aforesaid parameters are to be calculated as per method described in Para 4.1

and 4.2 of this document.

http://fmamwww/nas/asys/107/asys-107.pdf



3.3 The report shall be submitted to GM (N&S) by 15th January every year.

4 Performance measures to be applied

Minimum Facility Operational Availability (Ao) and Reliability (MTBF) standards are quoted in recognition that both frequent failures (low MTBO) and long outages (low FA) are operationally undesirable. For Precision Landing navigation aids, these standards come from ICAO Annex 10. For Non-Precision navigation aids, the quoted MTBO figures are recommendations only based on aviation experience. ICAO Attachment F to Annex 10 Volume 1 provides guidance material concerning the level of reliability and availability for radio communication service and radio navigation aids, which may be considered as minimum standards. Following table provides values of the performance parameters for a number of service types. Efforts should be made to achieve the quoted values.

Service Availability Reliability(MTBF) Continuity Aeronautical Broadcasting Service

> .992 >1000 hours 15 sec.

Aeronautical Mobile Service (ATC A/G comms.)

> .992 >10000 hours Immediate

Radar Data Display for ATC

>.992 >1000 hours Immediate

ILS Localizer and Glide Path

>.992 >1000 hours Immediate

DME >.992 >1000 hours Immediate VOR >.992 >1000 hours Immediate NDB >.992 >1000 hours Immediate

4.1 Availability

All aeronautical telecommunication and radio navigation services must provide high level of operational availability. In many cases, achievement of the necessary availability levels will require the use of design features such as redundancy and/or duplication of facilities, automatic changeover from main to standby facility in the event of a fault, remote monitoring and maintenance capability including remote configuration, remotely actuated equipment recycling capability, dial-up monitoring, etc.

Availability is a measure of the operational availability of the system to users over the total time period that is required by users. It is normally quoted over the period of an average year or longer, and takes into account the time the service will be unavailable as a result of both unscheduled failures and scheduled or unscheduled maintenance.



Definition: The ratio of actual operating time to specified operating time. 4.1.1 Availability Calculations:

Ao = Ta/Tt where

Ao = Operational Availability, Ta = the total time that the service is actually available, and Tt = the total time period that the service is required to be available.

N.B 1. It may be noted that the total time (Tt) includes non operating time. Non operating time consists of scheduled shutdown period and failure period. 2. Facilities at some of the station are not operated on H24 basis due to limited hours of operation of the station. For such facility time Tt will not include the period during which facility is switched off or not provided. 3. The availability is to be calculated for a period of one calendar year. A major factor in achieving required levels of Ao is the provision of standby Power system. Standby power systems may take the form of Diesel No-Break Generating sets, Diesel standby Generating sets, floating battery supply across a mains charger, or Uninterruptible Power Supplies with battery back up to mains supply. For remotely located facilities having relatively low power requirements, solar power supplies used in conjunction with floating batteries may be a satisfactory solution.

Important: - Factors important in providing a high degree of facility availability are: a) facility reliability; b) equipment designs providing good component accessibility and

maintainability; c) quick response of maintenance personnel to failures; d) adequate training of maintenance personnel; e) efficient logistic support; f) provision of adequate test equipment; g) standby equipment and/or utilities As indicated at g) above, provision of standby power is necessary for many Aeronautical Telecommunication/Aeronautical Navigation (ATEL/ANAV) services and facilities where continuity of service is a critical requirement. Critical ATEL/ANAV facilities that must have no-break standby power supply systems to ensure continuity are those in the following classes:- (a) all control tower facilities;



(b) all terminal area radar surveillance systems; (c) all terminal area precision and non precision approach Nav

aids; (d) all terminal area air / ground VHF communication systems;

(e) all radio bearers / networks and stations servicing any CNS system(s) used for terminal area control;

(f) all enroute communication systems; including all satellite communication ground stations used for ATS voice and data and

(g) all enroute radar facilities.

N.B :- 1)Station maintenance personnel are to take adequate, effective and timely action with regard to points b), c), d), e), f) and g). 2)CNS planning directorate is to take action with regard to points a) and b) while procuring CNS equipments.

4.2 Mean time between failures (MTBF)

Definition :- The actual operating time of a facility divided by the total number of failure of the facility during that period of time. Note :-1) the operating time is in general chosen so as to include at least five ,and preferably more, facility failures in order to give reasonable measure of confidence in the figure arrived. 2. This parameter is to be calculated for each channel and for the complete facility.

4.2.1 MTBF calculation:- T- Total time for five failures of the channel. MTBF= T/5

N.B :- If total number of failure is less than five in a calendar year, M.T.B.F need not be calculated by station and only the number failures in the calendar need be sent. It may be seen at 4.3 that adjustment of MTBF will produce the desired degree of reliability. Factors which affect MTBF and hence facility reliability are: a) Inherent equipment reliability; b) Degree and type of redundancy; c) Reliability of the serving utilities such as power and telephone or control

lines; d) Degree and quality of maintenance; e) Environmental factors such as temperature and humidity



Important: 1) The contribution of station maintenance personnel to increase MTBF is

particularly on account of c), d) and e) above and hence proper, effective and timely action should be taken in this regard.

2) With regard to items at a) and b) CNS-P directorate will take action to procure equipment having high reliability and adequate redundancy.

4.3 Reliability:

Definition: The probability that the ground installation operates within the specified tolerances.

4.3.1 Calculation The reliability R in percentage is given by R= 100 e –t/m Where e = base of natural logarithms t = time period of interest m= MTBF

It may be seen that reliability increases as MTBF increases. For high degree of reliability and for operational significant values of t , we must have a large MTBF. Let us see following examples

The reliability for 24 hrs of operation for 1000 hours of MTBF calculated from the above formula is approx 97.5 % i.e the likely hood of facility failure during 24 hrs period is 2.5%.

Note that the reliability figure for 1000 hrs for the same MTBF of 1000 hrs will be 37%.

It is important to note that the reliability (probability of surviving) for a period of time equal to MTBF is only 0.37 thus MTBF is not a failure free period.

Reliability should be calculated for both individual facilities, and for the total population of a particular type. Calculating both values provides information on the type as a whole, and also allows identification of individual facilities which may be under performing.

4.3.1 Action at Corporate headquarter Calculation: To be done at CHQ

MTBF of Individual Facility = Total time period/ number of failures During time period



This data will be forwarded by individual station for each type and model of equipment.

Based upon data made available by the station, MTBF of Total Population Of particular Type and model of equipment

M.T.B.F = Total time period*population/ Number of failures of all equipment of the population during time period.

4.4 Continuity

Where a service has duplicated or redundant facilities (including standby power supply) with automatic changeover or automatic or remote configuration, or main/standby capability, an additional parameter termed ‘continuity’ should also be quoted. ‘Continuity’ is a measure of time that a service takes to changeover from the main to standby facility, or to re-configure itself following a fault, including a power supply fault or failure.

Services for which continuity is required to be quoted include precision Navaids, radar display services for ATC, A/G communication channels for ATC, point to point data and communication links.

4.5 Integrity:

This is a measure of the ability of the service to provide a warning to users when the service should not be used, or when the error has occurred in the data transfer or computation. Integrity may be computed and presented in a variety of ways, e.g., as a Go/No Go warning based on internally measured parameters that utilize built-in test equipment or self monitoring systems. Integrity values for radio navigation services are often stated as a probability of the loss of integrity over a number of events.

Action :- Station maintenance personnel are to ensure that Navigation, surveillance and other facilities in which such capability is provided in the equipment, change over or shut down occurs in the event signal in space parameters or other operational parameters are out of tolerance. Non occurrence of above, if reported/detected shall be investigated, immediate corrective action taken and full reports to this effect sent to Corporate headquarters

*****



Chapter -12

Maintenance of CNS/ATM Systems

1. Introduction CNS-OM Directorate ensures provision CNS facilities as per Standard and Recommended practices of ICAO. Civil Aviation Requirements (CARs) promulgated by DGCA to, support CNS/ATM system for continental and Oceanic airspace managed by India. This includes maintenance of CNS ATM assets. The CNS OM Directorates are:

• Navigation & Surveillance (N & S) • Communications Operations (COM – O) • Central Maintenance Cell (CMC) • Central Radio Stores Depot (CRSD)

With support from: • Radio Construction & Development Unit (RC & DU) • Flight Inspection Unit (FIU) • CNS Planning Directorate (CNS – P) • Engineering (Civil and Electrical) Wing • Directorate of Information Technology (IT) • Integrated Planning Cell (IPC) • And in coordination with

• ATM Directorate • Aviation Safety Directorate • Aerodrome Planning Directorate

2. Working Arrangements CNS OM groups work together, and with other AAI Directorates of AAI to assure safe and effective management and delivery of CNS Services. 3.CNS OM Executive Team

CNS OM is managed by an Executive Team headed by the Executive Director (O&M) and includes all Group Managers. The Executive Team meets periodically as required. The Executive undertakes the following specific tasks:

• develop, define, prioritize and promulgate strategic directions for CNS OM on a continuing basis;

• monitors performance against objectives in the areas of CNS operations, and human resources;

• provides a focus for problem resolution and provides leadership for Group staff as a whole;



• reviews overall Directorate achievement against aims and objectives and agrees the need to undertake corrective or enhancement activities where required;

• develops programs for the most effective utilization of resources, whether they be human or equipment and facilities, to undertake all activities according to their priority;

• monitors and manages the effectiveness of CNS OM Management System by ensuring compliance with DGCA regulatory requirements and standards, and AAI’s own performance standards; and

• communicates the aims and objectives to staff.

The Executive Team is responsible for: • provision of strategy and policy advice on process areas associated with

safe life cycle management of the national CNS system; • identification and progression of initiatives to improve any aspect of

management of the national CNS systems; and • resolution of issues which have been referred to the team by Stations and

Regional headquarters.

4. NAV & SURVEILLANCE and COM DIRECTORATE 1. Role

The primary role of N & S and Communication Directorate is to provide assurance to the ED(CNS)- OM of the operational integrity of existing CNS systems and facilities. These Directorates provides in service support and management of the facilities to assure safe and effective operation, services in accordance with:-

• ICAO SARPS • THE INDIAN CIVIL AVIATION and AAI Acts • CARs of DGCA, • Standards and practices of AAI .

This activity extends from commissioning, upon hand-over from CNS-Planning Directorate.

To meet operational and administrative needs, the telecommunication services are provided either through internal resources or through external communication service providers. To provide necessary telecommunications services that meet the operational and administrative needs, either internally owned and maintained or by using external services. CNS OM delivers development, system management, maintenance standards and instructions, and maintenance services for the following systems:

• Navigation aids (ILS, VOR, DME, NDB); • Surveillance Systems (Primary & Secondary Radar sensors, ADS C and ADS B)

Comment: Refer to CNS V-1 CH 2 for more info



• Air-Ground communications (Digital Voice Switch VSCS, VHF, HF, Data communications);

• Ground-Ground communications (Voice); • Operational telecommunications AFTN (Data) and ATN (Network components &

AMHS); • Airport Security systems | For Airports owned by • Terminal Public Address and Information Systems | AAI only.

The General Managers (GMs) of CNS Directorate are to provide a focus for establishing, and monitoring adherence to, the procedures followed in complying with DGCA and ICAO safety and technical standards; The GMs are to take a pro-active role in ensuring that Directorate and Group strategies are in place to continually improve CNS system safety in terms of both effectiveness and efficiency. Following are the Major tasks of CNS Directorate:-

• Ensuring availability of CNS facilities as per MOU target. • Posting of CNS personnel at various ACS. • Review of CNS staff strength for each ACS. • Ensure timely procurement of spares. • Development and updating the CNS Manual. • Coordination of Technical Training & Proficiency program of CNS

personnel. • Ensure timely calibration of CNS personnel at ACS.

2. Products and Services • CNS system management, operation, and maintenance management; • System management, and specialist Systems Engineering relating to the above

systems; • Specialist CNS Authority services relating to the above systems; • Collection and record of CNS facility performance including system availability • Technical maintenance for CNS facilities including, Communication, Navigation

Surveillance ATM automation systems; • Test equipment calibration & maintenance ; • Technical Training and Proficiency. • Flight Inspection (via a separate unit) • Telecommunications Network design, implementation, management and support • Telecommunications networks providing voice and data circuits • Frequency Spectrum management; • Liaison with ICAO and the aviation industry. • Maintaining a Facility List baseline of the CNS system assets



3. Key Relationships

(i) Internal • Flight Inspection Unit • CNS Planning Directorate • Engineering (Civil & Electrical) Wing • IT Directorate • ATM Directorate; • Directorate of Aviation Safety • Corporate Office (for corporate policy, governance and corporate business

support, management of human resources); (ii) External • DGCA (as regulator) and ICAO; • Other aviation related businesses and other CNS service providers, including other

ATM providers; • Defence (For maintenance of CNS facilities installed at Defense airfields) • State & Local Government Departments, local authorities • External suppliers of technical and engineering resources • Airlines, • Communication service providers such as SITA, MTNL, and others • Wireless Planning and Coordination (WPC) Wing of Department of

Telecommunication.

4. Composition • Led by a safety orientated senior executive, with a engineering/technical focus

with the relevant experience and qualifications; • Supported by qualified technical staff at Central and Regional Headquarters and

station level, expert in delivering engineering, project management, installation and maintenance services, organized by customer, geography and function. Also supported by staff needed for business support (finance, staff management, industrial relations and planning).

• Staff who understands the competitive telecommunications environment and how that can be best exploited to reduce AAI costs.

6. Job Description: Job description of key CNS (Operation & and Maintenance )

executives is given in chapter 13.



Chapter 13

Job Description

The job description of key CNS- OM executives is described below: - The accountabilities and responsibilities of key CNS- OM executives are described below: 1. Executive Director (CNS-OM) (i) Title: ED (CNS-OM) (ii) Job Summary: He is head of CNS-Operation and Maintenance department and is placed at Corporate headquarter of Airports Authority of India. He monitors daily Un-serviceability reports of CNS facilities and directs corrective action. He reviews maintenance policies of all CNS facilities installed at Aeronautical Communication Stations and requirement of CNS personnel for existing and planned facilities, coordinate for timely procurement of spares, finalize annual training plan of CNS personnel for training at Regional training centers (RTC) and CATC and supervises activities related to Repair of multilayer PCB and modules at specialized maintenance units. He recommends proposal for annual transfer of CNS personnel to various ACS. He exercises administrative and financial powers as per delegation of power. (iii) Duties and Responsibilities:-

Maintenance and operation • Framing of maintenance policies and supervision to ensure maintenance of CNS

/ATM systems and Airport Security systems is according to the requirements of the DGCA CARs, ICAO SARPS and AAI’s CNS Manual;

• Establishing effective system for identifying, reporting, tracking and removal of faults in CNS Systems and Airport Security systems to ensure timely restoration of the facility;

• Ensuring that maintenance policies, procedures and systems are in place to guide and support the field level CNS personnel by issuance of CNS circular to this effect;

• Yearly review of CNS manuals; • Initiation of corrective action for reported shortcomings in CNS/ATM systems; • Monitoring and follow up action from the Corporate head quarter level to ensure

Availability, reliability, continuity and integrity of CNS/ATM systems as per their performance target;

• Coordination and issuance of direction for timely procurement of spares for CNS systems;

• Supervision of activities related to Central maintenance centre to ensure timely repair of multilayer PCBs and modules of CNS systems at Specialized maintenance units (SMU) established at various places in India;

• To initiate action for establishment of additional SMU, if required, for newly inducted systems;



• To ensure provision of reliable telecommunications system for Voice and Data communication required as per DGCA CARS, ICAO SARPS and AAI requirements for safe and efficient ATM either internally or through external telecommunication service providers;

• To coordinate for effective management of maintenance support contract with OEM and other specialised agencies;

• Co-ordination with ICAO and its Regional office for implementation of Regional Air Navigational Plans and Frequency management in co-ordination with WPC Wing, Dept. of Telecom ;

• To coordinate for Civil Aviation frequency protection/requirements in National Frequency Allocation Plan (NFAP) and ITU World Radio Conference through WPC Wing, Dept. of Telecom(DOT)/ICAO;

• Advance Planning for replacement/ augmentation of CNS/ATM facilities based on the life cycle of systems, availability of manufacturer support and change of technology;

• To Ensure adherence to safety management requirements of the CNS/ATM systems and Airport Security systems;

Training and Proficiency • finalize annual training plan of CNS personnel for training at Regional training

centers (RTC) and CATC; • Supervision of Proficiency scheme of CNS personnel. Administrative Action • To recommend proposal for transfer of CNS personnel as per operational

requirement and AAI’s transfer policy; • To takes actions to promote harmonious relation among the employee; • To take administrative action to maintain discipline.

(iv) Financial Activities • To exercise financial power as per DOP to accord administrative and expenditure

sanctions to support maintenance of CNS facilities; • To recommend proposals which are beyond his powers and forward to superior

authorities for obtaining expeditious approval; • To ensure preparation of annual budget of various department functioning under

CNS-OM Directorate; • To follow vigilance guidelines and promote culture of honesty and transparency in

discharging official function; (v) Additional works

To carry out additional works assigned to him by superior authorities. (vi) Accountability:

The ED (CNS-OM) is accountable to the, Member (Ops) 2. General Manager (Navigation and Surveillance) (i) Title: GM (N & S) (ii) Job Summary: He is entrusted with the task of ensuring maintenance and operation of all Navigational Aids, Surveillance systems , according to Civil Aviation Requirement



of DGCA,ICAO Annex 10 and maintenance of ATC Automation system, Airport Security equipments and is placed at Corporate headquarter of Airports Authority of India. Monitors daily Un-serviceability reports of CNS facilities installed at Aeronautical Communication Stations and project requirement of CNS personnel for existing and planned facilities, initiate for timely procurement of spares. Assit in finalizing annual training plan of CNS personnel for training at Regional training centers (RTC) and CATC. Associate in preparation of proposal for annual transfer of CNS Technical and Electronics discipline personnel within CNS wing to various ACS. Carry out related administrative and exercises financial powers as per delegation of power. (iii) Duties and Responsibilities:-

Maintenance and operation • Assist in framing of NS maintenance policies and supervision systems to ensure

maintenance of Navigation and Surveillance systems according to the requirements of the CAR of DGCA, ICAO SARPS and AAI’s CNS Manual;

• Monitoring and follow up action from the Corporate head quarter level to ensure Availability, reliability, continuity and integrity of Navigation, surveillance , ATC Automation and airport security systems as per performance target;

• Associate in preparation of CNS circulars to provide suitable guidelines to station maintenance personnel;

• Associate in yearly review of CNS manuals; • Initiation of corrective action for reported shortcomings in Navigation

Surveillance, ATM automation systems and Airport Security systems; • Coordinate for calculation of MTBF for total population of each model of

Navigation, Surveillance equipment, reliability and availability of N &S facilities; • Coordinate for effective management of maintenance support contract with OEM

and other specialised agencies; • Co-ordination with ICAO and its Regional office for implementation of Regional

Air Navigational Plans; • Recommendation for replacement/ augmentation of Navigation, Surveillance,

ATM automation systems and Airport Security systems based on the life cycle of systems, availability of manufacturer support and change of technology;

• Scrutinize proposal for issuance of No Objection certificate for construction of tall structures in the vicinity of airports from CNS point of view;

• Coordinate and take action to obtain survey –off sanction of CNS facilities for proposal received at CHQ;

• Ensure adherence to safety management requirements of the CNS/ATM systems; • Ensuring N & S operations and performance related issues are reported in a timely

manner to the ED (CNS-OM). • Training and Proficiency • Preparation of annual training plan of CNS personnel for training at Regional

training centers (RTC) and CATC; • Initiating action for written and oral test for award of Proficiency of CNS

personnel; • Review performance of proficient personnel for their ability to perform

maintenance job;



• Administrative Action Recommend proposal for transfer of Technical and Electronics personnel as per operational requirement and AAI’s transfer policy;

• Takes actions to promote harmonious relation among the employee; • Takes administrative action in N &S Directorate to maintain discipline.

(iv) Financial Activities • Exercises financial power as per DOP to accord administrative and expenditure

sanctions to support maintenance of NS facilities. • Recommend proposals which are beyond his powers and forward to superior

authorities for obtaining expeditious approval. • Ensure preparation of annual budget of various department functioning under NS

Directorate • Follow vigilance guidelines and promote culture of honesty and transparency in

discharging official function.

(v) Additional works Carry out additional works assigned to him by superior authorities

(vi) Accountability:

The GM ( N &S) is accountable to the, ED (CNS-OM).

3. General Manager (Communication) (i) Title:-GM (COM) (ii) Job summary: He is entrusted with the task of ensuring maintenance and operation of all communication systems , according to Civil Aviation Requirement of DGCA,ICAO Annex 10, Annex-15 and maintenance of Flight Information Display System (FIDS) at various airports in India Monitors daily Un-serviceability reports of Communication facilities installed at Aeronautical Communication Stations and project requirement of Communication (operation) personnel for existing and planned facilities, initiate action for timely procurement of spares. Assist in finalizing annual training plan of Communication (operation) for training at Regional training centers (RTC) and CATC. Associate in preparation of proposal for annual transfer of Communication (operation) personnel within CNS wing to various ACS. Exercise administrative and financial powers as per delegation of powers. . He is placed at Corporate headquarter of Airports Authority of India. (iii) Duties and Responsibilities

Maintenance and Operation

• Assist in framing of communication systems maintenance policies and suitable monitoring mechanism to ensure maintenance of communication systems according to the requirements of CAR of DGCA, ICAO SARPS and AAI’s CNS Manual. • Monitoring and follow-up action from the Corporate Headquarter (CHQ) level to



ensure availability, reliability, continuity and integrity of communication and Flight Information Display Systems as per performance targets. • Associate in preparation of CNS circulars to provide suitable guidelines to station maintenance personnel. • Associate in yearly review of CNS Manuals. • Initiation of corrective action for reported shortcomings in communication systems. • Coordinate for calculation of MTBF for total population of each model of communication systems reliability and availability. • Coordinate for effective management of maintenance support, contract with OEM and other specialized agencies. • Coordination with ICAO and its regional office for implementation of Regional Air Navigational Plans and frequency management in coordination with WPC wing of Department of Telecom and ICAO Regional Office.. • To coordinate for Civil Aviation frequency protection,/requirements in National Frequency Allocation Plan (NFAP) and ITU World Radio Conference through WPC wing of Department of Telecommunication/ICAO. • Recommendation for replacement/augmentation of communication systems and FIDS based on life cycle of systems, availability of manufacturer support and change of technology. • Coordinate and take action to take sanction for write-off proposals received from field stations in respect of communication and FIDS equipments. • Ensure adherence to safety management requirements of the CNS/ATM system. • Ensure communication system operations and performance related issues are reported in a timely manner to ED (CNS-OM). • Ensure smooth operation of COSAH and Operational Control Room at CHQ.. • Ensure timely publication of AFS Manual, Air Radio, Frequency Management System Manual. • Ensure provision of telecom. facilities at CHQ and field stations. • To monitor the performance of International Notam Offices and Aeronautical Mobile services as per DGCA/ICAO norms.

Training and Proficiency:

• Preparation of annual training plan of Communication (Operations) personnel for training at Regional Training Centre at CATC Allahabad.

• Initiating action for written, viva voce and practical assessment test for award of proficiency of Communication (Ops) personnel.

• Review performance of proficient personnel for their ability to perform maintenance job.

Administrative Action: • Recommend proposal for transfer of communication (Operation) personnel as per operational requirement and AAI’s transfer policy • Take actions to promote harmonious relations among the employees and associations. • Take administrative action in Communication Directorate to maintain discipline. • Assist ED (CNS-OM) for formulating proposals for creation of additional



manpower to meet operational requirement. Financial Activities :.

• Exercise financial power as per DOP to accord administrative and expenditure sanctions to support maintenance and upgradation of Communication facilities.

• Recommend proposals which are beyond his power and forward to superior authorities for obtaining expeditious approval.

• Ensure preparation of annual budget of various departments functioning under Communication Directorate.

• Follow vigilance guidelines and promote culture of honesty and transparency in discharging official function.

Additional Works Carry out additional works assigned to him by superior authorities. (v) Accountability The GM (Com.) is accountable to the ED (CNS-OM) 4. Deputy General Manager/Joint General Manager (Navigational Aids) (i) Title: DGM/Joint GM (Navigational Aids- CHQ) (ii) Job Summary :- Initiating preparation of maintenance policies, maintenance schedules, monitoring of preventive and break down maintenance reports of Navigational Aids received from stations, coordinate for projection of requirement of spares of Nav Aids for their timely procurement, examining referred NOC cases with respect to CNS criteria, carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • To initiate action for preparation of Preventive maintenance schedules of newly

procured and installed Nav Aids at the airports and after the approval of maintenance schedule, disseminating of same to the concerned stations for implementation;

• To initiate action for CNS circulars to be issued from time to time to the stations to all the issues which require uniform implementation related to Nav-Aids;

• Carry out review of faults report analysis in respect of Nav-Aids being received from stations and to take up suitable preventive/corrective action at CHQ level e.g. with manufacturer for recurring faults at all the stations, change in maintenance practices etc. in consultation with GM (N &S);

• To assist GM ( N &S) in taking action for keeping the Availability of Nav-Aids at all stations as per availability target by:

(a) monitoring the repair of Modules of the Nav – Aids at CMC (b) by monitoring dispatch of required spares to stations from

CRSD/SMU; • To initiate timely actions for renewal of maintenance contracts of Nav - aids

facilities, if required, at CHQ level;



• Carry out annual evaluation of the performance of Navigational facilities in respect of all stations and recommend to GM (N & S) actions to improve their performance or replace them if service life exceeds its specified life time;

• To assist GM (N &S) in taking further action on survey reports of decommissioned and discarded Navigational Aids equipment received from stations for processing at CHQ level;

• To review the flight inspection periodicity of all Nav- aids and to take up with FIU in consultation with GM (N &S) for timely completion of flight check;

• To take action at CHQ for early commissioning of installed Nav- aids at stations. • To supervise that current data base regarding Nav- aids is maintained at CHQ in

all aspect;. • To take action on the MIS reports received from stations/regions and analyze the

same and to present relevant report/data to GM ( N & S); • To participate in Technical evaluation committees, Technical specifications

committees and other technical committees in respect of Nav – Aids and other CNS Systems;

• To initiate corrective action on the aviation safety reports of field stations received from DGCA/Aviation Safety Directorate in respect of Nav- aids;

• In case of Major break down of Nav- Aid at the stations to coordinate with CRSD, SMU, RCDU and FIU for early restoration of facility;

• examining special referred NOC cases from NOC cell with respect to CNS criteria and advise GM ( N &S) suitably;

• Ensuring Navigational system operations and performance related issues are reported in a timely manner to the GM ( N &S).

Training • Organize actions to work out requirement of annual training for maintenance

personnel of Nav Aids at the stations and present relevant data.

Administrative Functions • Conducts interactive meeting with Nav Aid staff at least once every month and

take follow up action to implement actionable points of the minutes of meeting. • If required, takes administrative action on the employees working under him to

maintain discipline.

Financial activities • Project requirements of Navigational aid to GM (N &S) for incorporation in

annual budget of NS Directorate. • Follow vigilance guidelines and promote culture of honesty and transparency in

discharging official functions.

(iv)Additional works Carry out additional works assigned by superior authorities.

(v) Accountability He is accountable to GM (N &S).



(vi) Knowledge, experience, skills and abilities

• Posses proficiency or trained at concept level on Nav – aid facilities. • Should have working experience of at least two years on Nav – aid facilities. • Have knowledge of all maintenance schedules and CNS circulars related to Nav

Aids. • Possess sound knowledge of Annex 10 Vol I , Vol V, Doc 8071 and related Civil

Aviation Requirement (CAR) of DGCA. • Have working knowledge of AAI financial management system and Delegation of

financial power (DOP) • Have the working knowledge AAI disciplinary and appeal rules • Should be able to dictate letters in Hindi/English • Have ability to carry out correspondence in Hindi/English through E-mail • Have good knowledge of working with computer and able to use window

operating system and utilities like MS office and internet for obtaining information of interest.

• Have the ability to clearly express his views in Hindi/English • Able to make presentation, preferably through power point of related topics to

higher authorities and to gatherings. • Should have understanding and knowledge about basic ATC. • Maintain good working relationship with higher authorities. • Have the ability to effectively manage human resource working under him and

promote harmonious relation among them .

5. Jt.General Manager/Deputy General Manager (Surveillance Systems, CHQ) :- (i) Title: DGM/Joint GM (Surveillance Systems- CHQ) (ii) Job Summary :- Initiating preparation of maintenance schedule, monitoring of preventive and break down maintenance reports of Surveillance Systems received from stations, coordinate for projection of requirement of spares of Surveillance Systems for their timely procurement, working out N & S personnel deployment as per AAI transfer policy, carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • To initiate action for preparation of preventive maintenance schedules of newly

procured and installed Surveillance Systems at the stations and after the approval of maintenance schedule disseminating of same to the concerned stations for implementation;

• To initiate action for CNS circulars to be issued from time to time to the stations to all the issues which require uniform implementation related to Surveillance Systems;

• Carry out review of faults report in respect of Surveillance Systems being received from stations and to take up suitable preventive/corrective action at CHQ level e.g. with manufacturer for recurring faults at all the stations, change in maintenance practices etc. in consultation with GM (N &S);



• To take action for keeping the Availability of Surveillance Systems at all stations as per availability target by:

(a) monitoring the repair of Modules of the Surveillance Systems at CMC (b) by monitoring dispatch of required spares to stations from CRSD/SMU;

• To initiate timely actions for renewal of maintenance contracts of Surveillance Systems facilities, if required, at CHQ level;

• Carry out annual evaluation of the performance of Surveillance Systems in respect of all stations and recommend to GM (N & S) actions to improve their performance or replace them if service life exceeds its specified life time;

• To assist GM (N &S) in taking further action on survey reports of decommissioned and discarded Surveillance Systems received from stations for processing at CHQ level;

• To take action for early commissioning of newly installed Surveillance Systems at stations by coordinating at CHQ level;

• To supervise that current data base regarding Surveillance Systems is maintained at CHQ in all aspects;

• To take action on the MIS reports received from stations/regions and to present relevant data/reports to GM (N & S);

• To participate in Technical evaluation committees, Technical specifications committees in respect of Surveillance and other CNS Systems;

• In case of Major break down of Surveillance systems at the stations to coordinate with CRSD, SMU, RCDU and external agencies/contractors for technical help for early restoration of facility;

• Initiating corrective is taken on the aviation safety reports of field stations received from DGCA/Aviation Safety Directorate in respect of Surveillance Systems;

• Ensuring Surveillance system operations and performance related issues are reported in a timely manner to the GM ( N &S).

Training • Organize actions to work out requirement of annual training for maintenance

personnel of Surveillance Systems at the field stations.

Administrative Functions • To initiate proposal for transfer of CNS Technical and Electronics discipline

personnel as per operational requirement and transfer policy of AAI and submit same to GM (N&S);

• If required, takes administrative action on the personnel working under him to maintain discipline.

Financial activities

• Project requirements of Surveillance Systems to GM (N &S) for incorporation in annual budget of NS Directorate;

• Follow vigilance guidelines and promote culture of honesty and transparency in discharging official functions.



(iv)Additional works

Carry out additional works assigned by superior authorities.


(vi) Knowledge, experience, skills and abilities • Posses proficiency or trained at concept level on Surveillance Systems; • Should have working experience of at least two years on Surveillance Systems; • Have knowledge of all maintenance schedules and CNS circulars related to

Surveillance Systems; • Possess sound knowledge of Annex 10 Vol. I, III, IV, Doc 8071 and related Civil

Aviation Requirement (CAR) of DGCA; • Have working knowledge of AAI financial management system and Delegation of

financial power (DOP); • Have the working knowledge AAI disciplinary and appeal rules; • Should be able to dictate letters in Hindi/English; • Have ability to carry out correspondence in Hindi/English through E-mail; • Have good knowledge of working with computer and able to use window

operating system and utilities like MS office and internet for obtaining information of interest;

• Have the ability to clearly express his views in Hindi/English; • Able to make presentation, preferably through power point of related topics to

higher authorities and to gatherings; • Maintain good working relationship with higher authorities; • Should have understanding and knowledge about basic ATC; • Have the ability to effectively manage human resource working under him and


6. Jt. Manager/Deputy Manager (Security Equipments ,CHQ) :- (i) Title: DGM/Joint GM (Security Equipments- CHQ) (ii) Job Summary :- Initiating preparation of maintenance schedule, monitoring of preventive and break down maintenance reports of Airport Security equipments received from stations, coordinate for projection of requirement of spares of Security equipments for their timely procurement, carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • To initiate action for preparation of preventive maintenance schedules of newly

procured and installed Security equipments at the stations and after the approval of maintenance schedule disseminating of same to the concerned stations for implementation;



• To initiate action for CNS circulars to be issued from time to time to all the issues which require uniform implementation related to Security equipments at field stations;

• Carry out review of faults report in respect of Security equipments being received from stations and to take up suitable preventive/corrective action at CHQ level e.g. with manufacturer for recurring faults at all the stations, change in maintenance practices etc. in consultation with GM (N &S);

• To take action for keeping the Availability of Security equipments at all stations as per availability target by:

(a) monitoring the repair of Modules of the Security equipments at CMC (b) by monitoring dispatch of required spares to stations from CRSD/SMU;

• To initiate timely actions for renewal of maintenance contracts of Security equipments facilities, if required, at CHQ level;

• Carry out annual evaluation of the performance of Security equipments in respect of all stations and recommend to GM (N & S) actions to improve their performance or replace them if service life exceeds its specified life time;

• To assist GM (N &S) in taking further action on survey reports of decommissioned and discarded Security equipments received from stations for processing at CHQ level;

• To take action for early commissioning of newly installed Security equipments at stations by coordinating at CHQ level;

• To supervise that current data base regarding Security equipments is maintained at CHQ in all aspects;

• To take action on the MIS reports received from stations/regions and to present relevant data/reports to GM (N & S);

• To participate in Technical evaluation committees, Technical specifications committees in respect of security and other CNS Systems;

• In case of Major break down of security equipment systems at the stations to coordinate with CRSD, SMU, RCDU and external agencies/contractors for technical help for early restoration of facility;

• To initiate corrective action on the aviation safety reports of field stations received from DGCA/Aviation Safety Directorate in respect of Security equipments;

• To ensure security equipment system operations and performance related issues are reported in a timely manner to the GM (N &S).

Training • To organize actions to work out requirement of annual training for maintenance

personnel of Security equipments at the field stations.

Administrative Functions • Conducts interactive meeting with security equipment staff at least once every

month and take follow up action to implement actionable points of the minutes of meeting;




Financial activities • Project requirements of Security equipments to GM (N &S) for incorporation in

annual budget of NS Directorate; • Follow vigilance guidelines and promote culture of honesty and transparency in




(vi) Knowledge, experience, skills and abilities • Posses proficiency or trained at concept level on Security equipments; • Should have working experience of at least two years on Security equipments; • Have knowledge of all maintenance schedules and CNS circulars related to

Security equipments; • Possess sound knowledge of Annex 17, related Civil Aviation Requirement

(CAR) of DGCA and BCAS guidelines; • Have working knowledge of AAI financial management system and Delegation of




higher authorities and to gatherings; • Maintain good working relationship with higher authorities; • Have the ability to effectively manage human resource working under him and

promote harmonious relation among them 7. Deputy General Manager/Jt. General Manager (Com-CHQ) (i) Title: DGM/Joint GM (Com- CHQ) (ii) Job Summary :- He is entrusted with preparation of maintenance schedule, monitoring of preventive and break down maintenance reports of Communication Systems received from stations, coordinate for projection of requirement of spares of Communication Systems for their timely procurement, working out Communication personnel deployment as per AAI transfer policy, carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance



• To initiate action for preparation of preventive maintenance schedules of newly procured and installed communication Systems at the stations and after the approval of maintenance schedule, disseminating of same to the concerned stations for implementation;

• To initiate action for CNS circulars to be issued from time to time to the stations for all the issues which require uniform implementation related to Communication Systems;

• Carry out review of faults report in respect of communication Systems being received from stations and to take up suitable preventive/corrective action at CHQ level e.g. with manufacturer for recurring faults at all the stations, change in maintenance practices etc. in consultation with GM (Com);

• To take action for keeping the Availability of communication Systems at all stations as per availability target by:

(a) monitoring the repair of Modules of the Communication Systems at CMC (b) by monitoring timely dispatch of required spares to stations from CRSD/SMU;

• To initiate timely actions for renewal of maintenance contracts of Communication Systems facilities, if required, at CHQ level;

• Carry out annual evaluation of the performance of communication Systems in respect of all stations and recommend to GM (Com) actions to improve their performance or replace them if service life exceeds its specified life time;

• To assist GM (Com) in taking further action on survey reports of decommissioned and discarded Communication Systems received from stations for processing at CHQ level;

• To take action for early commissioning of newly installed communication Systems at stations by coordinating at CHQ level;

• To supervise that current data base regarding Communication Systems is maintained at CHQ in all aspects;

• To take action on the MIS reports received from stations/regions and to present relevant data/reports to GM (Com);

• To participate in Technical evaluation committees, Technical specifications committees in respect of communication and other CNS Systems;

• In case of Major break down of communication systems at the stations to coordinate with CRSD, SMU, RCDU and external agencies/contractors for technical help for early restoration of facility;

• To initiate corrective actions on the aviation safety reports of field stations received from DGCA/Aviation Safety Directorate in respect of Communication Systems;

• Ensuring Com system operations and performance related issues are reported in a timely manner to the GM (Com).

• To take action for Civil Aviation frequency protection/requirements in National Frequency Allocation Plan (NFAP) and ITU World Radio Conference through WPC Wing, Dept. of Telecom(DOT)/ICAO;

• Ensuring Provision of telecom facilities at CHQ as per AAI Telephone policy. Training • Organize actions to work out requirement of annual training for maintenance

personnel of communication Systems at the field stations.



Administrative Functions

• To initiate proposal for transfer of Communication (Operational )discipline personnel as per operational requirement and transfer policy of AAI and submit same to GM (Com);



• Project requirements of Communication Systems to GM (Com) for incorporation in annual budget of Com Directorate;




(v) Accountability He is accountable to GM (Com).

(vi) Knowledge, experience, skills and abilities • Posses proficiency or trained at concept level on communication Systems; • Should have working experience of at least two years on Communication

Systems; • Have knowledge of all maintenance schedules and CNS circulars related to

Communication Systems; • Possess sound knowledge of Annex 10 Vol. II, III, IV, V and relevant ICAO

Docs. and related Civil Aviation Requirement (CAR) of DGCA; • Have working knowledge of AAI financial management system and Delegation of

financial power (DOP); • Have the working knowledge of AAI disciplinary and appeal rules; • Should be able to dictate letters in Hindi/English; • Have ability to carry out correspondence in Hindi/English through E-mail; • Have good knowledge of working with computer and able to use window



higher authorities and to gatherings; • Maintain good working relationship with higher authorities; • Should have understanding and knowledge about basic ATC operations; • Have the ability to effectively manage human resource working under him and




8. General Manager (CNS -Region) Delhi/Mumbai/Kolkatta/Chennai /Guwahati (i) Title: - GM (CNS-Region) (ii) Job Summary:- Supervision of preventive and break down maintenance of CNS/ATM system facilities, Airport Security equipments and associated facilities of Aeronautical Communication Stations and Airports, timely procurement of spares, working out training requirement of CNS personnel’s working under him for training at regional training centre (RTC) and CATC , carry out associated administrative function and financial activities like preparation of annual budget, exercise of financial powers and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • To ensure availability of Preventive maintenance schedules of CNS and Airport

Security equipments installed at the ACS and Airports and CNS circulars issued from time to time to the units;

• To ensure availability of relevant ICAO Annex and documents at all ACS; • To ensure availability of technical manuals to the ACS for module level

maintenance; • To supervise for strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars in respect of CNS/ATM systems and security equipments;

• Carry out annual review of preventive maintenance schedules in consultation with his subordinates and provide his inputs to corporate headquarter and advise remedial action to ACS;

• To keep main and standby channel of a facility always serviceable at the Stations under his control by:-

a) Organize timely actions to procure adequate spare parts/modules within his power; b) Project requirements of spare modules/parts sufficiently in advance to corporate head quarter (CHQ)/ central Radio stores depot (CRSD) for their timely procurement;

• To take adequate advance actions for renewal of maintenance contracts under his delegation of powers, if required.

• Carry out annual evaluation of the performance of CNS facilities in his region and; (i) Advise station for corrective action (ii) Recommend to CHQ actions to improve their performance or replace them if service life exceeds its specified life time; • To organize preparation of survey reports of decommissioned and to be discarded

CNS and Airports security equipment in his region within a time frame of one month from the date of decommissioning;

• To monitor the performance of HF communication channels, and AFTN channels and take action for upgrading or additional channels if congestion is above AAI/ICAO limits;



• To coordinate and liaison with external service providers of communication facilities;

• To initiate action for preliminary site selection of CNS and associated facilities and as per CHQ directions forward reports in this regard to CHQ.

• To monitor the working of the Notam Offices at the Airports within region. • Coordinate with FIU and CHQ for flight inspection of Navigation facilities within

its specified time period. • To organize with all concerned for annual physical verification of CNS assets. • To monitor that MIS and other reports are regularly received from the stations and

take action based on these reports. • To generate and forward MIS and other reports/returns to CHQ on regular basis. • Yearly review of Station CNS manuals under his control. • Ensure adherence to safety management requirements of the CNS/ATM systems

and Airport security equipments at ACS and airports within his control. • Ensuring corrective is taken on the aviation safety reports of field stations

received from DGCA/Aviation Safety Directorate in respect of CNS/ATM facilities and Airport Security equipments and to bring into notice of CHQ, requiring action at CHQ level.

Training • To deploy trained or proficient manpower for the maintenance works by:-

a) Organize actions to work out requirement of annual training of station maintenance personnel after transfers preferably in the month of August and forward the requirement to CATC and CHQ; b)To nominate CNS personnel for training in CATC/RTC as per approved training calendar;

Administrative function • Conducts interactive meeting with staff once every month and take follow up

action to implement actionable points of the minutes of meeting; • To inspect ACS under his control as and when required and to advise/take

remedial action on the shortcomings noticed during inspection; • To recommend transfer of CNS personnel within region as per operational

requirement and transfer policy of AAI; • Takes actions to promote harmonious relation among the employee; • Takes administrative action to maintain discipline.

Financial Activities • Exercises financial power as per DOP to accord administrative and expenditure

sanctions to support maintenance of CNS facilities; • Takes actions for preparation of proposals which are beyond his powers and

forward to superior authorities for obtaining expeditious approval; • Takes timely action to prepare annual budget of CNS and forward to concerned

department; • Follow vigilance guidelines and promote culture of honesty and transparency in




Additional works Carry out additional works assigned to him by superior authorities.

(iv) Accountability He is accountable to Regional Executive Director of the concerned region.

9. Deputy General Manager/Jt. General Manager (CNS-Region) (i) Title: DGM/Joint GM (CNS- Region) (ii) Job Summary :- Supervision of preventive and break down maintenance of CNS/ATM systems, Airports Security Equipments and associated facilities of Aeronautical Communication Stations and Airports in the region, timely procurement of spares, arry out associated administrative function and financial activities like preparation of annual budget, exercise of financial powers and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Initiating action for preparation of preventive maintenance schedules of newly

procured and installed CNS/ATM and Airports Security Equipments at the ACS and Airports in the region and forward the same to CHQ in consultation with GM(CNS-Region) to CHQ for approval;

• Carry out review of faults reports in respect of CNS/ATM and Airport Security equipments being received from stations and to take up suitable preventive/corrective action at RHQ level e.g. with manufacturer for recurring faults at all the stations for the facilities procured at the region level , change in maintenance practices etc. in consultation with CHQ and to forward report in this regard to CHQ in consultation with GM (CNS-Region);

• To assist GM (CNS-Region) in keeping the Availability of CNS /ATM facilities at all stations as per availability target by:-

(a) monitoring the repair of Modules of the CNS/ATM and Security Equipments facilities at CMC;

(b) by monitoring dispatch of required spares to stations from CRSD/SMU and coordinating with CHQ in this regard;

(c) And to bring into notice of notice of GM (CNS) requiring action at regional/CHQ level;

• To bring into notice of GM (CNS-Region) for initiating timely actions for renewal

of maintenance contracts of CNS and Airport Security equipments, if required, at CHQ level;

• Helping GM (CNS-Region) in carrying out annual evaluation of the performance of CNS facilities in respect of all stations;

• To assist GM (CNS) in taking further action on survey reports of decommissioned and discarded CNS/ATM systems and security equipments received from stations for processing at RHQ level;



• To review the flight inspection periodicity of all Nav- aids and to take up with FIU in consultation with GM (CNS) for timely completion of flight check;

• To monitor action for early commissioning of installed CNS/ATM systems and security equipments at stations in the region and to bring into notice of GM (CNS) required action at regional/CHQ level in this regard;

• To supervise that current data base regarding CNS/ATM systems and Airport Security equipments is maintained at RHQ in all aspects;

• To take action on the MIS reports received from stations/regions and to present relevant data to GM (CNS);

• To participate in Technical evaluation committees, Technical specifications committees and other technical committees in respect of CNS/ATM Systems at regional level;

• In case of Major break down of CNS systems at the stations to coordinate with CRSD, SMU, RCDU, FIU and external agencies, if required, for early restoration of facility;

• To assist GM (CNS) in monitoring the performance of HF communication channels, AFTN channels and other communication systems for upgrading or additional channels if congestion is above ICAO limits;

• Monitoring corrective taken on the aviation safety reports of field stations received from DGCA/Aviation Safety Directorate in respect of CNS/ATM facilities and to bring into notice of GM (CNS) requiring action at regional/CHQ level;

• Monitoring maintenance and availability of communication systems like EPABX in the region and to take action for up gradation/replacement of same.

Training • Organize actions to assist GM (CNS) to work out requirement of annual training

for maintenance personnel of CNS/ATM and Security systems at the stations.

Administrative Functions • Conducts interactive meeting with CNS staff at least once every month and take

follow up action to implement actionable points of the minutes of meeting; • If required, takes administrative action to maintain discipline;. • To initiate proposal for transfer of CNS personnel within region as per operational

requirement and transfer policy of AAI.

Financial activities • Project requirements of CNS systems to GM (CNS) for incorporation in annual

budget; • Follow vigilance guidelines and promote culture of honesty and transparency in






(v) Accountability He is accountable to GM (CNS - Region).

(vi) Knowledge, experience, skills and abilities . • Have knowledge of maintenance practices and schedules in respect of CNS/ATM

facilities and CNS circulars; • Possess sound knowledge of Annex 10, Annex 15, Annex 17, Doc 9734, Doc

8071 and related Civil Aviation Requirement (CAR) of DGCA; • Have working knowledge of AAI financial management system and Delegation of




higher authorities and to gatherings; • Maintain good working relationship with higher authorities; • Should have understanding and knowledge about basic ATC; • Have the ability to effectively manage human resource working under him and

promote harmonious relation among them.

10.General Manager (CNS) ACS Delhi/Mumbai/Kolkatta/Chennai Airports (i) Title :- GM (CNS) (ii) Job Summary :- Overall supervision of preventive and break down maintenance of CNS/ATM system facilities of Aeronautical Communication Station, timely procurement of spares, working out training requirement of employees working under him for training at regional training centre (RTC) and CATC , carry out associated administrative function and financial activities like preparation of annual budget, exercise of financial powers and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Ensure availability Preventive maintenance schedules of CNS/ATM equipments

installed at the airport and CNS circulars issued from time to time to the units. • Ensure availability of relevant ICAO Annex and documents in all units; • Ensure availability technical manuals to the units for module level maintenance; • Supervise to ensure strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars;



• Carry out annual review of preventive maintenance schedules in consultation with his subordinates and provide his inputs to corporate headquarter;

• To keep main and standby channel of a facility always serviceable by:- a) Organize timely actions to procure adequate spare parts/modules within

his power; b) Project requirements of spare modules/parts sufficiently in advance to

corporate head quarter (CHQ)/ central Radio stores depot (CRSD) for their timely procurement;

c) Take adequate advance actions for renewal of maintenance contracts, if required.

• Carry out annual evaluation of the performance of CNS/ATM facilities and recommend to CHQ actions to improve their performance or replace them if service life exceeds its specified life time;

• Organize preparation of survey reports of decommissioned and to be discarded CNS/ATM equipments within a time frame of one month from the date of decommissioning;

• To monitor the performance of HF communication channels, and AFTN channels and take action for upgrading or additional channels if congestion is above ICAO limits;


• To monitor the working of the International Notam Office at the station; • Coordinate with FIU and CHQ for flight inspection of Navigation and

Surveillance facilities within specified time period after becoming due; • To organize with all concerned for annual physical verification of CNS assets; • To forward MIS and other reports/returns to CHQ on regular basis; • Yearly review of Station CNS manual; • Taking corrective taken on the aviation safety reports of station on CNS/ATM

facilities received from DGCA/Aviation Safety Directorate and to bring into notice of CHQ, requiring action at CHQ level.

Training • To deploy trained or proficient manpower for the maintenance works by :-

a) Organize actions to work out requirement of annual training of station maintenance personnel after transfers preferably in the month of August and forward the requirement to CATC and CHQ;

• Organize training in RTC as per approved training calendar; Ensure adherence to safety management requirements of the CNS/ATM systems at the station;


action to implement actionable points of the minutes of meeting; • Takes actions to promote harmonious relation among the employee; • Takes administrative action to maintain discipline.


sanctions to support maintenance of CNS facilities;



• Takes actions for preparation of proposals which are beyond his powers and forward to superior authorities for obtaining expeditious approval;

• Takes timely action to prepare annual budget of ACS and forward to concerned department;


Additional works Carry out additional works assigned to him by superior authorities.

(iv) Accountability He is accountable to Regional Executive Director of the concerned region.

11.Deputy General Manager/Joint General Manager (Navigational Aids) :- (i) Title: DGM/Joint GM (Nav- Aids) (ii) Job Summary :- Supervision of preventive and break down maintenance of Navigational Aids, Coordinate for projection of requirement of spares of Nav Aids for their timely procurement, working out training requirement of employees working under him, carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Make available Preventive maintenance schedules of Nav Aids installed at the

airport and CNS circulars issued from time to time to the units. • Make available technical manuals to the units for module level maintenance and

availability of all information that describes the functionality of the system. • Supervise to ensure strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars. • Carry out annual review of preventive maintenance schedules in consultation

with his subordinates and provide inputs to GM (Communication) • To keep main and standby channel of a facility always serviceable

d) Provide effective guidance to his subordinates. e) Take actions for immediate dispatch of unserviceable modules to Special

Maintenance Unit (SMU) and coordinates for return of serviced modules from SMU.

• Initiate timely actions for renewal of maintenance contracts of Nav aids units, if required.

• Carry out annual evaluation of the performance Navigational facilities and recommend to GM (Com) actions to improve their performance or replace them if service life exceeds its specified life time.

• Organize preparation of survey reports of decommissioned and to be discarded Navigational Aids equipment within a time frame of one month from the date of decommissioning.

• Coordinate with GM (Com) for flight inspection of Navigation facilities within its specified time period.



• Ensure availability of work instructions and suitable test equipment’s for carrying out monitoring and maintenance activities.

• Ensure there is a effective control on the monitoring and measurement and all the related system documents.

• Ensuring there is an effective control on non conforming products like old software version , u/ s hardware and obsolete documents and prevent its unintended use.

• Ensure there is a continual improvements in handling failures by doing fault analysis , improving maintenance philosophy , and taking timely corrective and maintenance actions.

• Improving the effectiveness and efficiency by reducing system failures or waste in material and time.

• Ensure well documented procedure exists for logging all maintenance activities. Training • To deploy trained or proficient manpower for the maintenance works; • Organize actions to work out requirement of annual training for maintenance

personnel of Nav Aids of the station after transfers, preferably in the month of august and forward the requirement to GM (CNS).

• Nominate personnel of Nav Aids for training.

Administrative Functions • Conducts interactive meeting with Nav Aid staff at least once every month and

take follow up action to implement actionable points of the minutes of meeting. • Takes actions to promote harmonious relation among the Nav Aids personnel. • If required, takes administrative action to maintain discipline.

Financial activities • Project requirements of Navigational aid to GM(CNS) for incorporation in annual

budget of ACS. • Follow vigilance guidelines and promote culture of honesty and transparency in



(v) Accountability He is accountable to GM (Com) of the concerned ACS.

(vi) Knowledge, experience, skills and abilities • Posses proficiency or trained at concept level on ILS and VOR DME system • Should have working experience of at least two years on ILS or VOR system • Have knowledge of all maintenance schedules and CNS circulars related to Nav

Aid • Possess sound knowledge of Annex 10 Vol I , Vol III, Doc 8071 and related Civil

Aviation Requirement (CAR) of DGCA. • Independently carried out adjustment of ground equipment (ILS and VOR/DME)



• Have working knowledge of AAI financial management system and Delegation of financial power (DOP)

• Have the working knowledge AAI disciplinary and appeal rules • Should be able to dictate letters in Hindi/English • Have ability to carry out correspondence in Hindi/English through E-mail • Have good knowledge of working with computer and able to use window



higher authorities and to gatherings. • Maintain good working relationship with higher authorities. • Have the ability to effectively manage human resource working under him and

promote harmonious relation among them 12. Deputy General Manager/ Joint General Manager (Surveillance Systems) (i) Title: - Dy. GM/Joint GM(Surveillance Systems) : (ii) Job Summary : - Supervision of Surveillance Systems system for preventive maintenance, corrective maintenance and breakdown maintenance and Ensuring ready availability of necessary spares by identifying and projecting in time the necessary spares requirements, identifying the obsolete spares and seeking their replacement spares, identifying suitable in country /outside country Vendor support, testing of spares during receipt, ensuring proper storage taking shelf life into consideration and carrying out associated administrative functions and Performing any other works assigned by higher authorities

(iii) Duties and Responsibilities:-

Maintenance

• Ensure preventive maintenance are performed as per specified and approved norms and maintenance schedules;

• Ensure implementation of all CNS circulars and guidelines issued from time to time;

• Devising preventive maintenance schedules for new equipments installed and getting them approved from competent authority;

• Ensure during breakdown maintenance , minimum downtime of the equipment, and to determine the root cause of failures;

• Evaluate the need for action to ensure that such faults do not reoccur, and taking suitable actions;

• Ensure all the equipments are up and running to their specified optimum Performance;

• Ensure any complaints from the users are attended within minimum time possible, by the duty officers of the unit;

• The process of handling complaint from users is in place and all the complaint are addressed to the satisfaction of users;

• Issues raised and which fall outside the scope of present level maintenance



are projected to higher authorities /manufacturer for getting a suitable response. Thereafter an appropriate follow up action is taken; • Ensure use of specific methods and defined procedures while working and

Attending faults with the system; • Ensure the availability of all information that describes the functionality of

the system; • Ensure availability of work instructions and suitable test equipment’s for

carrying out monitoring and maintenance activities • Ensure there is a effective control on the monitoring and measurement and

all the related system documents. • Ensuring there is an effective control on non conforming products like old

software version , u/ s hardware and obsolete documents and prevent its unintended use.; • Ensure there is a continual improvements in handling failures by doing

fault analysis , improving maintenance philosophy , and taking timely corrective and maintenance actions. • Improving the effectiveness and efficiency by reducing system failures

or waste in material and time; • Ensure well documented procedure exists for logging all maintenance

Activities; • Ensuring documents and procedure related to system maintenance and

operations are updated regularly and easily retrievable; • Ensuring there is effective communication with other system officers

regarding their enquiries and handling of their complaints;

• Ensure effective implementation of Maintenance contract wherever applicable and to the extent possible.

• involving maintenance support agencies in development activities to share knowledge effectively and efficiently improve the working and

performance of the equipments.

Training • To deploy trained or proficient manpower for the maintenance works; • Organize actions to work out requirement of annual training for

maintenance personnel of automation System of the station after transfers, preferably in the month of august and forward the requirement to GM (CNS).

Nominate personnel of Automation system for training

Administrative functions • To review the progress of actions items of minutes of meeting held with General Manager (Communication) • Take effective steps to maintain proper decorum and discipline. • Ensuing culture of honesty and transparency prevails while discharging official functions.

Financial activities • Project requirements as specified by users and maintenance staff for



incorporation in annual budget of ACS; • Ensure a better understanding between cost and benefits.

Additional works

Carry out additional works as assigned by superior officers.

(iv) Accountability He is accountable to GM(CNS)

(v) Knowledge, experience , skill and abilities

• Possesses proficiency or trained at concept level on Radar and MSSR system.

• Should have sufficient work experience in the field of computer ,networking and Information Technology

• Should have sufficient knowledge on maintenance philosophy

• Should have adequate knowledge on computer software, operating systems and RDBMS.

• Posses ability to use office software products for effective written communication and maintain training documentation

• Should posses tactical skills to handle and address queries coming from ATC users.

• Should have familiarity of working with ATC functionalities, ATC terminologies and basic understanding of Air Traffic control.

• Should have ability to correctly understand the requirements of ATC users and project it accordingly for effective implementations by vendors.

• Should posses sufficient skills and manage all resources to handle all types contingencies .

• Should be able to visualize potential problems and proactively work toward their solutions,

13. Deputy General Manager/ Joint General Manager (Com - Operational) (i) Title :- Dy. GM/Joint GM(Com-Ops) :- (ii) Job Summary :- Supervision of preventive and break down maintenance of

Automatic Message switching System (AMSS), Long Distance HFRT communication, International Notam Office, Message Room, Briefing and other Com-Ops Units, Leasing of national and international data and voice circuits required for providing ATS and coordination with the telecommunication service providers. Coordinate for projection of requirement of spares of AMSS for their timely procurement, working out training requirement of employees both



operational and technical working under him; carry out associated administrative functions and any other works assigned to him


Maintenance • Make available Preventive maintenance schedules of Automatic Message

Switching System installed at the airport and CNS circulars issued from time to time to the units.

• Make available technical manuals to the units for module level maintenance • Supervise to ensure strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars. • Carry out annual review of preventive maintenance schedules in consultation with

his subordinates and provide inputs to GM (CNS). • To keep main and standby channel of a facility always serviceable • Provide effective guidance to his subordinates. • Take actions for immediate dispatch of unserviceable modules to Special

Maintenance Unit (SMU) and coordinates for return of serviced modules from SMU.

• Initiate timely actions for renewal of maintenance contracts of AMSS and other associated systems , if required.

• Carry out annual evaluation of the performance HFRT Channels, AFTN Channels and recommend to GM (CNS ) actions to improve their performance or upgrade them.

• Organize preparation of survey reports of decommissioned and to be discarded Systems within a time frame of one month from the date of decommissioning.






• Ensure well documented procedure exists for logging all maintenance activities. • Ensure that HFRT operation is strictly as per ICAO ANNEX 10 Vol II and only

standard phraseology is used. • Ensure availability of work instructions and suitable test equipment’s for carrying

out monitoring and maintenance activities. • Ensure there is a effective control on the monitoring and measurement and all the

related system documents. • Ensuring there is an effective control on non conforming products like old

software version , u/ s hardware and obsolete documents and prevent its unintended use.





• Ensure well documented procedure exists for logging all maintenance activities

Training • To deploy trained or proficient manpower for the AMSS (Technical and

Operational ), HFRT operation , International Notam Office and Communication Briefing.;

• Organize actions to work out requirement of annual training for Communication (Operational) and Technical personnel of the station after transfers, preferably in the month of August and forward the requirement to GM(CNS);

• Nominate personnel of (Com – Operational) and technical personnel for training at CATC and RTC.

• Administrative Functions • Conducts interactive meeting with staff at least once every month and take follow up action to implement actionable points of the minutes of meeting; • Takes actions to promote harmonious relation among the personnel; • If required, takes administrative action to maintain discipline.

• Financial activities • Project requirements of his unit to GM(CNS) for incorporation in annual budget of ACS; • Follow vigilance guidelines and promote culture of honesty and transparency in discharging official functions.

Additional works Carry out additional works assigned by superior authorities.

(iv) Accountability He is accountable to GM (CNS) of the concerned ACS.

(v) Knowledge, experience, skills and abilities • Possesses proficiency or trained at concept level on AMSS /HFRT operation; • Have knowledge of all maintenance schedules and CNS circulars ; • Possess sound knowledge of Annex 10 Vol. II,III , V, Annex

15,DOC8126,8400,9734 and related Civil Aviation Requirement (CAR) of DGCA.;

• Knowledge about computer systems both software and Hardware.; • Have working knowledge of AAI financial management system and Delegation of

financial power (DOP); • Have the working knowledge AAI disciplinary and appeal rules; • Should be able to dictate letters in Hindi/English; • Have ability to carry out correspondence in Hindi/English through E-mail;



• Have good knowledge of working with computer and able to use window operating system and utilities like MS office and internet for obtaining information of interest;


higher authorities and to gatherings; • Maintain good working relationship with higher authorities; • Have the ability to effectively manage human resource working under him and


14. Deputy General Manager (Automation) (i) Title :- DGM (Automation ) (ii) Job Summary : - Supervision of Automation system for preventive maintenance , corrective maintenance and breakdown maintenance. Ensuring ready availability of necessary spares by identifying and projecting in time the necessary spares requirements. Identifying the obsolete spares and seeking their replacement spares. Carrying out associated administrative functions and Performing any other works assigned by higher authorities (iii) Duties and Responsibilities:- Maintenance

• Ensure preventive maintenance are performed as per specified and approved norms; • Ensure implementation of all circulars and guidelines issued from higher authorities from time to time ; • Devising preventive maintenance schedules for new equipments installed and getting them approved from competent authority; • Ensure during breakdown maintenance , minimum downtime of the equipment, and to determine the root cause of failures; • Evaluate the need for action to ensure that such faults do not reoccur, and taking suitable actions; • Ensure all the equipments are up and running to their specified optimum performance ; • Ensure any complaints from the users are attended within minimum time possible, by the duty officers of the unit.; • The process of handling complaint from users is in place and all the complaint are addressed to the satisfaction of ATC officers; • Issues raised and which fall outside the scope of present level maintenance are projected to higher authorities /manufacturer for getting a suitable response. Thereafter an appropriate follow up action is taken; • Ensure use of specific methods and defined procedures while working and attending faults with the system; • Ensure the availability of all information that describes the functionality of the system;



• Ensure availability of work instructions and suitable test equipment’s for carrying out monitoring and maintenance activities; • Ensure there is a effective control on the monitoring and measurement and all the related system documents; • Ensuring there is an effective control on non conforming products like old software version , u/ s hardware and obsolete documents and prevent its unintended use; • Ensure there is a continual improvements in handling failures by doing fault analysis , improving maintenance philosophy , and taking timely corrective and maintenance actions; • Improving the effectiveness and efficiency by reducing system failures or waste in material and time; • Ensure well documented procedure exists for logging all maintenance activities; • Ensuring documents and procedure related to system maintenance and operations are updated regularly and easily retrievable; • Ensuring there is effective communication with ATC and Automation system officers regarding their enquiries and handling of their complaints; • Ensuring continuous availability of all facilities with sufficient high degree of confidence; • Ensuring procedures are available for carrying out breakdown jobs effectively. • Ensure effective implementation of Maintenance contract wherever applicable and to the extent possible; • Establishing two way communication at appropriate levels to facilitate the rapid solutions of problems and to avoids costly delays or disputes; • Encouraging agencies to implement programs for continual improvements of performance and to participate in other job improvement initiative; • involving maintenance support agencies in development activities to share knowledge effectively and efficiently improve the working and performance of the equipments. Administrative functions • To review the progress of actions items of minutes of meeting held with General Manager (Communication); • Take effective steps to maintain proper decorum and discipline. • Ensuing culture of honesty and transparency prevails while discharging official functions. Financial activities • Project requirements of automation system for incorporation in annual budget of ACS. • Follow vigilance guidelines and promote culture of honesty and transparency in discharging official functions Additional works • Carry out additional works as assigned by superior officers

(iv)Accountability • He is accountable to GM(CNS)



(v) Knowledge , experience , skill and abilities

• Possesses proficiency or trained at concept level on Automation system;

• Possess sound knowledge of Annex 10 Vol.II, III, IV, Annex 15,DOC8126,9734 and related Civil Aviation Requirement (CAR) of DGCA.;

• Should have sufficient work experience in the field of computers ,networking and Information Technology;

• Should have sufficient knowledge on maintenance philosophy;

• Should have adequate knowledge on computer software, operating systems and RDBMS;

• Posses ability to use office software products for effective written communication and to maintain training documentation;

• Should posses tactical skills to handle and address all queries coming from ATC users in regards to system failures;

• Should have familiarity of working with ATC functionalities, ATC terminologies and basic understanding of Air Traffic control;

• Should have ability to correctly understand the requirements of ATC users and project it accordingly for effective implementations by vendors;

• Should posses sufficient skills and manage all resources to handle all types contingencies;

• Should be able to visualize potential problems and proactively work towards their solutions,

15. Asst. General Manager/Sr. Manager (ILS) (i)Title: - Asst. GM/SM (ILS) :- (ii) Job Summary: - Supervision of preventive and break down maintenance of ILS and other associated systems, Coordinate for projection of requirement of spares of ILS for their timely procurement and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Supervise to ensure strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars; • Coordinating with other agencies like GFS, Civil wing for maintaining critical and

sensitive area of ILS;



• Carry out annual review of preventive maintenance schedules in consultation with his subordinates and provide inputs to DGM/Jt GM in charge of the facility;

• To take regular debriefing reports for facilities and take remedial action accordingly;

• Carry out flight inspection of the facility and to take coordination action that flight inspection is carried out within the stipulated time;

• To go through the shift log books of maintenance staff on regular basis and take remedial measures for the problems maintenance difficulties encountered by shift staff and bring the same in the notice of DGM/Jt. GM;

• To visit field units regularly at least once daily and keep a record of same; • To keep main and standby channel of a facility always serviceable and

(i) Provide effective guidance to his subordinates. (ii) Take actions for immediate dispatch of unserviceable modules to Special Maintenance Unit (SMU) and coordinates for return of serviced modules from SMU;

• To bring into notice of DGM/Jt. GM for renewal of maintenance contracts of ILS and other associated units, if required;

• Helping DGM/Jt. GM in carrying out annual evaluation of the performance of IL;

• Initiate action of preparation of survey reports of decommissioned and to be discarded ILS equipment within a time frame of one month from the date of decommissioning;

• Ensure availability of work instructions and suitable test equipment’s for carrying out monitoring and maintenance activities;

• Ensure there is a effective control on the monitoring and measurement and all the related system documents;

• Ensuring there is an effective control on non conforming products like old software version , u/ s hardware and obsolete documents and prevent its unintended use;

• Ensure there is a continual improvements in handling failures by doing fault analysis , improving maintenance philosophy , and taking timely corrective and maintenance actions;

• Improving the effectiveness and efficiency by reducing system failures or waste in material and time;

• Ensure well documented procedure exists for logging all maintenance activities.

Administrative Functions • Conducts interactive meeting with ILS maintenance personnel at least once every

week and take follow up action with DGM/Jt. GM to implement actionable points of the minutes of meeting;

• Takes actions to promote harmonious relation among the ILS Unit personnel;

• If required to bring into notice of DGM/Jt. GM for initiating administrative action

to maintain discipline.




• Helping DGM/Jt. GM in projecting budget requirements of ILS unit for incorporation in annual budget of ACS;


Additional works


(iv) Accountability He is accountable to DGM/Jt. GM in charge of the concerned unit .

(v) Knowledge, experience, skills and abilities • Posses proficiency and trained at concept level and equipment level on ILS and

associated systems; • Should have working experience of at least two years in ILS unit. • Have knowledge of all maintenance schedules and CNS circulars related to ILS

and other associated systems. • Possess sound knowledge of Annex 10 Vol. 1, Vol.V, DOC 8071 Vol. I and

related DGCA Civil aviation requirements. • Ability to independently carry adjustment of ILS . • Have working knowledge of AAI financial management system and Delegation of

financial power (DOP). • Have the ability to effectively manage human resource working under him and

promote harmonious relation among them. • Should have familiarity of working with ATC functionalities, ATC

terminologies and basic understanding of Air Traffic control.

16. Asst. General Manager/Sr. Manager (AMSS) :- (i)Title: - Asst. GM/SM (AMSS) :- (ii) Job Summary: - Supervision of preventive and break down maintenance of AMSS and other associated systems, Coordinate for projection of requirement of spares of AMSS unit for their timely procurement and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:- Maintenance

• Supervise to ensure strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars. • Carry out annual review of preventive maintenance schedules in consultation

with his subordinates and provide inputs to DGM/Jt GM in charge of the facility. • Carry out flight inspection of the facility and to take coordination action that flight

inspection is carried out within the stipulated time.



• To go through the shift log books of maintenance staff on regular basis and take remedial measures for the problems maintenance difficulties encountered by shift staff and bring the same in the notice of DGM/Jt. GM.

• To visit units regularly at least once daily and keep a record of same. • To keep main and standby channel of a facility always serviceable and

(i) Provide effective guidance to his subordinates. (ii) Take actions for immediate dispatch of unserviceable modules to Special Maintenance Unit (SMU) and coordinates for return of serviced modules from SMU.

• To bring into notice of DGM/Jt. GM for renewal of maintenance contracts of AMSS and other associated units, if required.

• Helping DGM/Jt. GM in carrying out annual evaluation of the performance of ILS.

• Initiate action of preparation of survey reports of decommissioned and to be discarded AMSS equipment within a time frame of one month from the date of decommissioning.






• Ensure well documented procedure exists for logging all maintenance activities Administrative Functions • Conducts interactive meeting with AMSS maintenance personnel at least once

every week and take follow up action with DGM/Jt. GM to implement actionable points of the minutes of meeting.

• Takes actions to promote harmonious relation among the AMSS Unit personnel. • If required to bring into notice of DGM/Jt. GM for initiating administrative action


Financial activities • Helping DGM/Jt. GM in projecting budget requirements of AMSS unit for

incorporation in annual budget of ACS. • Follow vigilance guidelines and promote culture of honesty and transparency in

discharging official functions. Additional works Carry out additional works assigned by superior authorities.



(iv) Accountability

He is accountable to DGM/Jt. GM in charge of the concerned unit.

(v) Knowledge, experience, skills and abilities • Posses proficiency and trained at concept level and equipment level on AMSS

and associated systems. • Should have experience on the planning and engineering of the aeronautical fixed

telecommunication network. • Should have working experience of at least two years in AMSS unit. • Have knowledge of all maintenance schedules and CNS circulars related to AMSS

and other associated systems. • Possess sound knowledge of Annex 10 Vol. II, Vol. III , DOC 8259 and related

DGCA Civil aviation requirements. • Ability to independently carry adjustment of ILS. • Have working knowledge of AAI financial management system and Delegation of




17. Asst. General Manager/Sr. Manager (DVOR/DME Systems) :- (i) Title: - Asst. GM/SM(DVOR/DME Systems) (ii) Job Summary: - Supervision of preventive and break down maintenance of DVOR/DME Systems, Coordinate for projection of requirement of spares of DVOR /DME Systems for their timely procurement and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance Supervise to ensure strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars. • Coordinating with other agencies like GFS, Civil wing for maintaining critical and

sensitive area of DVOR/DME Unit • Carry out annual review of preventive maintenance schedules in consultation

with his subordinates and provide inputs to DGM/Jt GM in charge of the facility. • To take regular debriefing reports for facilities and take remedial action

accordingly. • Carry out flight inspection of the facility and to take coordination action so that

flight inspection is carried out within the stipulated time. • To go through the shift log books of maintenance staff on regular basis and take

remedial measures for the problems maintenance difficulties encountered by shift staff and bring the same in the notice of DGM/Jt. GM.

• To visit field units regularly at least once daily. • To keep main and standby channel of a facility always serviceable and



(i) Provide effective guidance to his subordinates. (ii) Take actions for immediate dispatch of unserviceable modules to Special Maintenance Unit (SMU) and coordinates for return of serviced modules from SMU.

• To bring into notice of DGM/Jt. GM for renewal of maintenance contracts of DVOR/DME Systems, if required.

• Helping DGM/Jt. GM in carrying out annual evaluation of the performance of DVOR/DME Systems.

• Initiate action of preparation of survey reports of decommissioned and to be discarded DVOR/DME Systems within a time frame of one month from the date of decommissioning.






• Ensure well documented procedure exists for logging all maintenance activities Administrative Functions • Conducts interactive meeting with DVOR/DME Systems maintenance personnel

at least once every week and take follow up action with DGM/Jt. GM to implement actionable points of the minutes of meeting.

• Takes actions to promote harmonious relation among the DVOR/DME Systems

Unit personnel. • If required to bring into notice of DGM/Jt. GM for initiating administrative action


Financial activities • Helping DGM/Jt. GM in projecting budget requirements of DVOR/DME unit for

incorporation in annual budget of ACS.



(iv) Accountability He is accountable to DGM/Jt. GM in charge of the concerned unit.



(v)Knowledge, experience, skills and abilities

• Posses proficiency and trained at concept level and equipment level on DVOR/DME unit

• Should have working experience of at least two years in DVOR/DME unit. • Have knowledge of all maintenance schedules and CNS circulars related to

DVOR/DME unit • Possess sound knowledge of Annex 10 Vol. 1, Vol. V, DOC 8071 Vol. I and

related DGCA Civil aviation requirements. • Ability to independently carry adjustment of DVOR/DME unit. • Have working knowledge of AAI financial management system and Delegation of




18. Asst.General Manager/ Sr. Manager (Security Equipment):- (i) Title: - Asst. GM/SM(Security Equipment) (ii) Job Summary: - Supervise proper functioning of all security and PA equipment, test equipment etc. in the Unit. Ensure and carry out preventive maintenance schedule. Ensure corrective maintenance / repair action for faulty equipment. Check and ensure proper maintaining of logbooks. Ensure upkeep of the inventory. Carry out associated administrative function and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Ensure proper maintenance and serviceability of all X-BIS, DFMD, HHMD, PA

System and associated systems. • Supervise all preventive maintenance and maintain records of maintenance of the

facilities as per prescribed maintenance schedule • To initiate all corrective/ breakdown maintenance and keep JtGM/DGM (security

eqpt) informed of the unserviceability • To discuss and analyze the cause of breakdown with other officers and staff of the

unit, to avoid similar problem from reoccur in the future • Check the unit logbook on routine basis and initiates appropriate corrective action. • To brief the concerned JtGM/DGM regarding the status of the unit on daily basis. • To coordinate with Civil/Electrical Wing and other concerned for smooth

functioning of the unit. • To make arrangements for calibration of all critical Test equipment pertaining to

the Unit. • To make arrangements for inspections/ audit by internal or external parties as and

when instructed by concerned Jt GM/DGM



• To supervise maintenance of all records and spares related to the Unit. • To timely despatch all routine operational and administrative reports as and when

required. • To coordinate with all concerned for annual physical verification of assets as

decided by GM (CNS). • To project requirements for spares and test equipment in consultation with the Jt

GM/DGM • Ensure upkeep of the inventory of the unit. • Ensure availability of work instructions and suitable test equipment’s for carrying






• Ensure well documented procedure exists for logging all maintenance activities Training • To access the training needs for staff and officers working directly under him and

recommend training to JtGM/DGM; Administrative function • To prepare the duty roster for the unit in consultation with JtGM/DGM (Security

Eqpt). • To recommend leaves of all officers of the unit for approval by the concerned

JtGM/DGM. • To maintain and preserve attendance/leave registers and all files/records

pertaining to the Unit. • To verify Over time/Out of pocket allowance statements of staff and officers of

Unit for approval by Jt GM/DGM and GM (CNS). • To coordinate, if assigned with additional responsibility, with all concerned for

project related work pertaining to Security Equipment and brief the same to concerned JtGM/DGM.

• Ensure attendance for staff and officers • Ensure wearing of uniform by staff and officers • Takes actions to promote harmonious relation among the employee. • He acts as the reporting officer for all Managers / AM/ Superintendent/ Sr

Assistants for ACRs in the Unit • To groom/ guide officers under him to take independent responsibilities in future

on promotion • Additional responsibilities, if assigned

Financial Activities



• Additional responsibilities, if assigned: • Assist GM (CNS)/JtGM/DGM in preparation of annual budget of Security

Equipment Unit/ CNS wing • Maintain Imprest account

Additional works • Carry out additional works assigned to him by superior authorities, such as:

• Installation • Stock verification

(iv) Accountability

He reports to Jt GM/ DGM (Security Equipment)

(v) Knowledge, experience, skills and abilities • Posses proficiency or trained at concept level and equipment level on security

equipment • Have knowledge of all maintenance schedules and CNS circulars related to

Security equipment • Maintain good working relationship with higher authorities and subordinates. • Have the ability to effectively manage human resource working under him and

promote harmonious relation among them. • should have familiarity of working with ATC functionalities, ATC


19. Asst. GM/ Sr. Manager (Surveillance Systems) (i) Title : Asst. GM/SM (Surveillance System) (ii) Job Summary: - Supervise proper functioning of all facilities/ equipment, test equipment etc. in the Unit. Ensure and carry out preventive maintenance schedule. Ensure corrective maintenance / repair action for faulty equipment. Ensure NOTAM action when facility is off the air. Check and ensure proper maintaining of logbooks. Ensure upkeep of the inventory. Carry out associated administrative function and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Ensure proper maintenance and serviceability of main and standby channels of

Surveillance facilities • Supervise all preventive maintenance and maintain records of maintenance of the

surveillance facilities as per prescribed maintenance schedule o ensure pre-monsoon maintenance o ensure special maintenance on Antenna, Rotating Assembly, Motor Drive

Assembly by greasing, lubricating and changing oil as prescribed manufacturers

• To initiate all corrective/ breakdown maintenance and keep JtGM/DGM informed of the unserviceability



o If required to coordinate with outside agencies in consultation with JtGM/DGM (Surveillance) to carryout special repair works and to develop indigenous substitute of imported items

• Take NOTAM action incase when facility goes off the air in consultation with JtGM/DGM and GM (CNS)

• To discuss and analyze the cause of breakdown with other officers and staff of the unit, to avoid similar problem from reoccur in the future

• Check the unit logbook on routine basis and initiates appropriate corrective action. • To brief the concerned JtGM/DGM regarding the status of the unit on daily basis. • To coordinate with Civil/Electrical Wing and other concerned for smooth

functioning of the unit. • To make arrangements for calibration of all critical Test equipment pertaining to

the Surveillance Unit. • To make arrangements for inspections/ audit of internal or external parties as and

when instructed by concerned Jt GM/DGM • To supervise maintenance of all records and spares related to the Unit. • To project requirements of routine / regular/ special items well in advance for

carrying out maintenance and replacement incase of expiry of its life, like battery, oil etc.

• To timely dispatch all routine operational and administrative reports and also as and when required.

• To coordinate with all concerned for annual physical verification of assets as decided by GM (CNS).

• To project requirements for spares and test equipment in consultation with the JtGM/DGM

• To ensure serviceability of remote links between site and ATS building • Ensure upkeep of the inventory • Ensure availability of work instructions and suitable test equipment’s for carrying






• Ensure well documented procedure exists for logging all maintenance activities Training • To access the training needs for staff and officers working directly under him and

recommend training to JtGM/DGM Administrative function • To prepare the duty roster for the unit in consultation with JtGM/DGM

(Surveillance).



• To recommend leaves of all officers of the unit for approval by the concerned JtGM/DGM.

• To maintain and preserve attendance/leave registers and all files/records pertaining to the Surveillance Unit.

• To verify Over time/Out of pocket allowance statements of staff and officers of Unit for approval by JtGM/DGM and GM (CNS).

• To coordinate, if assigned with additional responsibility, with all concerned for project related work pertaining to Surveillance and brief the same to concerned JtGM/DGM.

• Ensure attendance for staff and officers • Ensure wearing of uniform by staff and officers • Takes actions to promote harmonious relation among the employee. • He acts as the reporting officer for all Managers / AM/ Superintendent/ Sr

Assistants for ACRs in the Unit • To groom/ guide officers under him to take independent responsibilities in future

on promotion • Additional responsibilities, if assigned


• Additional responsibilities, if assigned: • Assist GM (CNS)/Jt GM/DGM in preparation of annual budget of Surveillance

Unit/ CNS wing; • Maintain Imprest account.

(iv) Additional works • Carry out additional works assigned to him by superior authorities, such as:

i. Installation ii. Stock verification

(v) Accountability

He reports to Jt GM/ DGM (Surveillance)

(vi) Knowledge, experience, skills and abilities • Posses proficiency or trained at concept level and equipment on surveillance

equipment • Have knowledge of all maintenance schedules and CNS circulars related to

Surveillance facilities • Maintain good working relationship with higher authorities and subordinates. • Have the ability to effectively manage human resource working under him and


20. ASSISTANT .G.M (COM)/SR.MANAGER (COM) (i) Title: Asst. GM/SM (Com) (ii) Job Summary:- Supervision of various units of Communication units in CHQ and all



Aeronautical communication facilities in all Regions and field stations ,working out training requirement of employees working under him, carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities: Maintenance and operation:

Supervision of various units in Communication Directorate of CHQ. Monitoring the serviceability performance of Aeronautical Communication

facilities/channels/circuits/lines. Responsible for deployment of suitable manpower in communication directorate

of CHQ. Responsible for the immediate restoration of services mentioned Responsibility for maintaining record of scheduled returns and scrutiny of such

returns from all the stations Responsible to maintain record in respect of letter of agreement/licenses/SACFA

clearances of different frequencies in-use with AAI and issuance of NOC to outside agencies for frequencies in the aviation and non-aviation bands.

Coordinate with DGM (COM)/Jt.G.M (COM)/GM (COM) to carryout regular evaluation of performance of communication facilities as per ICAO norms.

As branch head responsible for preparation of duty schedule for personnel deployed in OPS and COSAH Control Room as well as Signal Centre at CHQ.

To monitor progress of implementation of new circuits and facilities. Training

• To deploy trained and/or proficient manpower in various positions according to ICAO guidelines.

• Propose nomination of personnel according to the norms of CATC to meet operational requirements.

Administrative functions:

Organizing regular interactive meetings with staff and take action for the implementation of decisions taken for better performance of various services in Communication Operations.

Streamline the entire system of operation/administration to avoid any procedural lapse.

Responsible for bringing to the notice of employees, all ICAO notifications/amendments/CNS circulars/Administrative circulars.

Make available relevant Manuals/Annexes/documents in operational units of all stations for ready reference.

Responsible for updating of AFS Manual/Manual of Frequency Management System/AERADIO/Telephone Directory.


Project the Modernisation/Upgradation/New installation requirements to DGM/JT.GM(COM)/GM(COM) for incorporation in annual budget of CNS. Additional works



Carry out additional works as and when assigned by Superior authorities. (iv) Accountability Accountable to GM (Com) (v) Knowledge, experience, skills and abilities

Possesses proficiency and/or trained at different levels in one of the services mentioned above.

Having working experience in all the units. • Having knowledge of provisions contained in relevant ICAO Annexes and

Documents, AFS Manual, FASID table and Civil Aviation Requirements(CAR) published by DGCA.

Having good communication skills in Hindi/English Having ability to coach and impart training to subordinates.

21. MANAGER (Com)-CHQ

(i) Title: Manager (com) (ii) Job Summary:-Manning various units in Communication (Ops) Directorate,

Record keeping, carryout works assigned in regard of Frequency management ,Communication facilities ,AIS. Assist DGM/JT.GM/GM in day-to-day works.

(iii).Duties and Responsibilities

Maintenance & Operation.

Manning of various units in Communication Directorate.. Monitoring and maintaining records of the serviceability performance of

Aeronautical Communication facilities/channels/circuits/lines. Responsible for maintaining record of scheduled returns and scrutiny of such

returns from all the stations. Responsible to maintain record in respect of letter of agreement/licences/SACFA

clearances of different frequencies in-use with AAI and issuance of NOC to outside agencies for frequencies in the aviation and non-aviation bands.

Coordinate with SM(COM)/AGM(COM)/DGM (COM)/Jt.G.M (COM)/GM (COM) to carryout regular evaluation of performance of communication facilities as per ICAO norms.

To prepare and maintain AERADIO/AFS Manual/Frequency Management Records.

Training

To maintain training and proficiency records of Communication discipline

officers. To process transfer application both tenure and non-tenure stations to meet the

operational requirements. To initiate proposal/review of manpower requirement at various stations as per

manning norms of AAI.



Administrative functions

Responsible for bringing to the notice of SM(COM)

/AGM(COM)/DGM(COM)/Jt.G.M(COM)/GM(COM) of any inadequacies/requirements observed in the respective units.

To ensure availability of relevant Manuals/Annexes/documents in operational units for ready reference.

Responsible for updating of AFS Manual/Manual of Frequency Management System/AERADIO/Telephone Directory

. Financial activities

Project the requirement of Modernisation / Upgradation/New installation s to

SM(COM)/AGM(COM)/DGM/JT.GM(COM)/GM(COM) for incorporation in annual budget of CNS.

Additional works • Carry out additional works as and when assigned by Superior authorities.

(iv).Accountability

• He is accountable to GM (Com -CHQ) (v).Knowledge, experience, skills and abilities

• Possesses proficiency and/or trained at different levels in one or more services mentioned above..

• Having working experience in the concerned unit. • Having knowledge of provisions contained in relevant ICAO Annexes and

Documents, AFS Manual, FASID table and Civil Aviation Requirements(CAR) published by DGCA.

• Having good communication skills in Hindi/English • Having ability to coach and impart training to subordinates.

22 Asst. General Manager /Sr.Manager (Com- Notam office) (i) Title : ASST.GM(COM)/SR.MANAGER(COM-NOF)

(ii)Job Summary:-Supervision of entire operation of services related to NOTAM Office. Coordinate for projection of requirement of Aeronautical Publications , charts and their procurement , carry out associated administrative functions ,project training and man power requirement of the unit concerned and any other works assigned to him/her. (iv).Duties and Responsibilities

Maintenance and Operation:

• Supervision of entire operation of International NOTAM office/Communication Briefing/Automatic Self Briefing Services.



• Responsible for the smooth operation of Aeronautical Information services such as NOTAM / Pre-flight communication briefing/ASBS/Publication of Checklist and Monthly NOTAM Summaries.

• Arrange deployment of suitable manpower in all positions of the units mentioned above.

• Responsible for the serviceability of all facilities/aids and equipments. Upkeep of charts and maps available in NOF.

• Responsible for maintaining records relating to NOTAM of India and other neighbouring countries and maintenance of NOTAM DATABASE.

• As supervisor , responsible for checking operator’s log (Written/Electronic). • Coordinate with DGM (COM)/JT.GM(COM)/GM(CNS) to carryout regular

evaluation of performance as suggested by DGCA/ ICAO and suggest actions to be taken to improve performance

Training

To propose deployment of trained and/or proficient manpower in various positions.

To suggest to GM (Com) the training requirements at CATC / RTC to meet the operational requirements. To chalk out annual schedule for training of manpower in AIS in coordination

with administrative head.

Administrative functions:

Attending regular interactive meeting organized by the head of the branch, projecting requirements of NOF related services and take action for the implementation of decisions taken for optimum performance of Aeronautical Information Services.

Streamline the entire system of operations relating to AIS to avoid any procedural lapse. Responsible for bringing to the notice of Staff & Officers working in

NOF/Briefing units about all ICAO notifications/amendments/Supplements/CNS circulars & Administrative circulars . Make available relevant Manuals/Annexes/documents in all operational units of

AIS for ready reference. Ensure currency of all the Manual/Annexes/Documents/Amendments available in

AIS by incorporating the latest amendments.

Financial activities • Project the Modernization /Up gradation /New installation requirements of AIS to

GM (CNS) for incorporation in annual budget of CNS.

Additional works • Carry out any additional works as and when assigned by Superior authorities.

(iv) Accountability

• He is accountable to GM (CNS)/CNS in charge. (v).Knowledge, Experience, skills and abilities :



• Possesses proficiency or trained in services mentioned above. Having working experience in all units of AIS and other Aeronautical

Communication Services. Having knowledge of the provisions contained in ICAO,Annex 15

DOC 8400,8126,7030,9734, and Civil Aviation Requirements (CAR) published by DGCA.

Having good communication skills in Hindi/English Having ability to coach and impart training to subordinates

23. Asst. General Manager /Sr. Manager (Com- HFRT) (i) Title : ASST.GM (COM)/SR.MANAGER(Com-HFRT)

(ii).Job Summary: Supervision of entire operation of services related to HFRT(MWARA/RDARA/Coordination).Coordinate for projection of requirement of facilities ,charts and their procurement , carry out associated administrative functions ,project training and man power requirement of the unit concerned and any other works assigned to him/her. (iv).Duties and Responsibilities:

Maintenance and Operation: Supervision of entire operation of HFRT (RDARA/MWARA) in various shifts at a

station. Responsible for the smooth operation of Aeronautical Mobile Services. Arrange deployment of suitable manpower in all positions of HFRT. Responsible for the serviceability of all facilities/aids/equipment

associated with services mentioned in (ii). Overall responsibility for maintaining record of communication and checking

operator’s log (Written/Electronic). As in-charge of the said unit, responsible for provision of charts and Routes

required for HFRT operations. Coordinate with maintenance officers to ensure continuity of services in HFRT

units. Coordinate with ATM officers regarding issues relating to ATS routes,

coordination procedures etc. Coordinate with JT.GM (COM)/DGM(COM) to arrange proficiency check of the

officers deployed on HFRT positions. Coordinate with Civil and Electrical Engineering for maintaining environmental

conditions in the unit.

Training : To suggest to JT.GM/DGM(Com) the requirement of training as per operational

requirements . Chalk out annual schedule for training of manpower as administrative In-charge

of HFRT.

Administrative functions :



Attending regular interactive meeting organized by the head of the branch, projecting requirements of HFRT related services and take action for the implementation of decisions taken for better performance of Aeronautical Mobile Services.

Suggest actions to streamline the entire system of operation/administration to avoid any procedural lapse.

Responsible for bringing to the notice of HFRT operators, all ICAO notifications/amendments/CNS circulars/Administrative circulars.

Make available relevant Manuals/Annexes/documents/Charts/Routes in all HFRT units for ready reference.

Financial activities: • Project the Modernisation/ Upgradation /New installation requirements to

JT.GM(COM)/ DGM(COM) for incorporation in annual budget of CNS.

Additional works : • Carry out additional works as and when assigned by Superior authorities.

(iv) Accountability : • He Accountable to GM (CNS)/CNS in charge of ACS.

(v) Knowledge ,Experience , Skills and Abilities :

Posses proficiency or trained at different levels in services mentioned above. Having working experience in Standard Radio Telephony procedures/ familiar

with Air routes procedures and frequencies pertaining to concerned FIR. Having knowledge of provisions contained in ICAO Annex.10 Vol II,

Doc.8585,8400, Civil Aviation of India Requirements(CAR) published by DGCA and Jeppeson Charts.

Having good communication skills in English/Hindi. Having ability to coach and impart training to subordinates Having ability to represent Airports Authority of India in

Workshops/Seminars/Conventions relating to aviation/non-aviation and able to deliver lecture with audio-visual presentation.

24. Asst. General Manager /Sr. Manager (Com-AMSS Supervisor) (i) Title : ASST.GM/SR.MANAGER (COM-AMSS SUPERVISOR)

(ii).Job Summary :- Supervision of entire operation of services related to AMSS operation.Coordinate for projection of requirement of spares ,maintenance of lines/channels, coordination with service providers and carry out associated administrative functions ,project training and man power requirement of the unit concerned and any other works assigned to him/her. (iii) Duties and Responsibilities:

Maintenance and Operation:

Supervision of entire operation of AMSS in various shifts. Responsible for the smooth operation of Aeronautical Fixed Telecommunication

Network.



To arrange deployment of available manpower in all positions of AMSS. Responsible for the serviceability of all Equipment/Modem/line

handlers/LTU/Servers/hub/workstations/ all Network components associated with AMSS.

Responsible for maintaining record of communication and checking operator’s log (Written/Electronic).

As in-charge of the said unit, responsible for maintaining system static files such as Routing directory and site parameters ,OS, System software.

Responsible for archival of messages and activities for retention according to DGCA CARS/ICAO norms and retrieval of messages in case of Inquiry/Investigation.

Coordinate with DGM/JT(COM)/GM(COM) to carryout regular evaluation of performance as suggested by ICAO and take actions to improve performance of the unit.

Training : To suggest to JT.GM/DGM(Com) the requirement of training according to the

operational requirements of AMSS. Chalkout annual schedule for training of manpower as administrative In-charge of

AMSS. Administrative functions : Attending regular interactive meeting organized by the head of the branch ,

projecting requirements of AMSS relating to Aeronautical Fixed services and take action for the implementation of decisions taken for better performance of Aeronautical Fixed Services.

Streamline the entire system of operation/administration to avoid any procedural lapse.

Responsible for bringing to the notice of operators of different AMSS units , all ICAO notifications/amendments/CNS circulars/Administrative circulars.

Make available relevant Manuals/Annexes/documents in all AMSS units for ready reference.

Coordinate with maintenance officers to ensure continuity of services of AMSS units.

Coordinate with Telecommunication Service providers to ensure serviceability of all the leased lines and circuits.

Financial activities :

• Project the Modernization /Up gradation /New installation requirements of AMSS

to DGM(COM)/JT.GM(COM) for incorporation in annual budget of CNS.

Additional works : • Carry out any additional works as and when assigned by Superior authorities.

(iv) Accountability :

• Accountable to DGM/JT.GM(COM)/GM(COM).



(v) Knowledge , Experience , Skills and Abilities :

Possesses proficiency or trained at different levels in services mentioned in I(ii). Having working experience in AMSS (Operation) and AMSS (System

Administration), Computer. Having knowledge of provisions contained in ICAO Annex.10 Vol.II, III, DOC

8585,8400,9705, AERADIO/AFS Manual, Manual of AFTN Planning and Engineering and Civil Aviation Requirements(CAR) published by DGCA.

Having good communication skills in English/Hindi Having ability to coach and impart training to subordinates Having ability to represent Airports Authority of India in Workshops

/Seminars/Conventions relating to aviation/non-aviation and able to deliver lecture with audio-visual presentation.

25. Asst. General Manager /Sr. Manager (Com-Briefing) (i) Title : - ASST.GM(COM)/SR.MANAGER(COM- BRIEFING) (ii) Job Summary : Supervision of entire operation of services related to Communication Briefing and Pre-flight formalities at ATS Briefing , project requirement of Aeronautical Publications ,charts and their procurement , carry out associated administrative functions ,project training and man power requirement of the unit concerned and any other works assigned to him/her. (iii) Duties and Responsibilities:

Maintenance and Operation

Supervision of entire operation of International NOTAM office/Communication Briefing/Automatic Self Briefing Services in shifts.

Responsible for the smooth operation of Aeronautical Information services such as NOTAM / Pre-flight communication briefing/ASBS/Publication of Checklist and Monthly NOTAM Summaries.

Make available suitable manpower in all positions of the units mentioned above. Responsible for the serviceability of all facilities/aids/Equipment/Charts and

Maps associated with services mentioned in (ii). Responsible for maintaining records relating to Aeronautical Information services

such as Aeronautical Information Publication of India and other neighbouring countries and amendments.

As supervisor , responsible for checking operator’s log (written/automatic). Coordinate with DGM (COM)/JT.GM(COM)/GM(COM to carryout regular

evaluation of performance as suggested by ICAO and suggest actions to be taken to improve performance.

Training :

Suggest deployment of trained or proficient manpower in various positions

according to guidelines. To suggest to GM (CNS) the requirement of training according to the norms and

operational requirements. Chalkout annual schedule for training of manpower in AIS in coordination with



administrative head.

Administrative functions : Attending regular interactive meetings organized by the head of the branch ,

projecting requirements of AIS related services and take action for the implementation of decisions taken for better performance of Aeronautical Information Services.

Responsible for bringing to the notice of all employees in AIS units all ICAO notifications/amendments/Supplements/CNS circulars & Administrative circulars.

Make available relevant Manuals/Annexes/documents in all operational units of AIS for ready reference.

Financial activities : • Project the Modernisation/Upgradation/New installation requirements of AIS to

GM (COM) for incorporation in annual budget of CNS.

Additional works : • Carry out any additional works as and when assigned by Superior authorities.

(iv).Accountability : Accountable to GM (Com) (v).Knowledge, Experience, Skills and Abilities :

Possesses proficiency or trained at different levels in services mentioned above. Having working experience in all units of AIS and other Aeronautical

Communication Services. Having knowledge of provisions contained in ICAO Annex 15, DOC

8585,8400,8126,7030,9734,9705 and Civil Aviation Requirement(CAR) of DGCA.

Having good communication skills in Hindi/English. Having ability to coach and impart training to subordinates. Having ability to represent Airports Authority of India in

Workshops/Seminars/Conventions relating to aviation/non-aviation fields and able to deliver lecture with audio-visual presentation.

26. Manager/Asst. Manager /JET (Junior Executive Trainee)(VHF communication Systems) :- (i) Title: - Manager/Asst. Manager /JET(VHF communication Systems) (ii) Job Summary: - Carrying out preventive and break down maintenance of VHF communication Systems and other associated systems, keeping maintenance record, Coordinating with other agencies for smooth functioning of VHF communication Systems and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-



Maintenance

• Carrying out preventive maintenance schedules of VHF communication Systems

and associated facilities as per approved maintenance schedules, their related documentation as per maintenance schedule and related guidelines;

• Carrying out/helping in breakdown maintenance of VHF communication Systems and associated system either alone or as part of maintenance team as the need may arise;

• To check the quality of voice logger recording as per standard procedure; • Coordinating with other agencies like Civil and Electrical wing for maintaining

equipment room and effective air-conditioning and to bring into notice of Asst.GM /DGM pending issues in this regard;

• Helping Unit in charge in carrying out annual review of preventive maintenance schedules of the facilities;

• To take regular debriefing reports for facilities and take remedial action and bring into notice of his superiors accordingly any unresolved issue;

• Maintain Site /Shift log books and to bring out into notice of Asst. GM/Sr. Manager maintenance and other issues which can not be resolved by him.

• To check the performance of back up systems at least once daily/shift and keep a record of same;

• To bring into notice of Sr. Manager /Jt. GM maintenance contracts issues of VHF communication Systems, if required;

• Helping Asst. GM/Sr. Manager in carrying out annual evaluation of the performance of VHF communication Systems;

• Helping in initiating action of preparation of survey reports of decommissioned and to be discarded VHF communication Systems within a time frame of one month from the date of decommissioning.


• Preparation of fault report of unserviceable modules and coordination action for dispatching of faulty modules to SMU or repairing of the same at the station level.

• Maintaining inventory of unit; • When doing shift duty to check operational and environmental parameters of the

facilities;


(iv) Accountability He is accountable to Unit in charge of the concerned unit or Shift Supervisory officer as the case may be. .

(v) Knowledge, experience, skills and abilities • Posses proficiency and trained at concept level and equipment level on VHF

communication Systems ; • Have knowledge of all maintenance schedules and CNS circulars related to VHF

and other associated systems;



• Possess knowledge of Annex 10 Vol. III, V and related DGCA Civil aviation requirements;

• Ability to carrying out Maintenance/adjustment of VHF communication Systems independently or as a part of maintenance team;

• Posses’ knowledge about use of general and special purpose test equipments essential for maintenance of VHF communication Systems and associated systems;

• Have knowledge about initiation for Notam action in respect of VHF communication Systems in case of break down or maintenance of the facility;


• Should know about remote control line lay out and electric power distribution of the facilities and in case of breakdown of the mains power supply for the long duration the alternative action to be taken;

• While working in the shift should have effective communication with other shift officers and ATC for debriefing of the facility;

• Should have knowledge about the emergency communication facilities available in the unit;

27. Manager/Asst. Manager /JET (HF communication Systems) :- (i)Title: - Manager/Asst. Manager /JET (HF communication Systems) (ii) Job Summary: - Carrying out preventive and break down maintenance of HF communication Systems and other associated systems, keeping maintenance record, Coordinating with other agencies for smooth functioning of HF communication Systems and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance Carrying out preventive maintenance schedules of HF communication Systems and

associated facilities as per approved maintenance schedules, their related documentation as per maintenance schedule and related guidelines;

• Carrying out/helping in breakdown maintenance of HF communication Systems and associated system either alone or as part of maintenance team as the need may arise;









• To bring into notice of Sr. Manager /Jt. GM maintenance contracts issues of HF communication Systems, if required;

• Helping Asst. GM/Sr. Manager in carrying out annual evaluation of the performance of HF communication Systems;

• Helping in initiating action of preparation of survey reports of decommissioned and to be discarded HF communication Systems within a time frame of one month from the date of decommissioning.




facilities;

Additional works • Carry out additional works assigned by superior authorities.

(iv) Accountability • He is accountable to Unit in charge of the concerned unit or Shift Supervisory

officer as the case may be. .

(v) Knowledge, experience, skills and abilities • Posses proficiency and trained at concept level and equipment level on HF

communication Systems ; • Have knowledge of all maintenance schedules and CNS circulars related to HF

and other associated systems; • Possess knowledge of Annex 10 Vol. III, V and related DGCA Civil aviation

requirements; • Ability to carrying out Maintenance/adjustment of HF communication Systems

independently or as a part of maintenance team; • Posses’ knowledge about use of general and special purpose test equipments

essential for maintenance of HF communication Systems and associated systems; • Have knowledge about initiation for Notam action in respect of HF

communication Systems in case of break down or maintenance of the facility; • Should have familiarity of working with ATC functionalities, ATC

terminologies and basic understanding of Air Traffic control; • Should know about remote control line lay out and electric power distribution of

the facilities and in case of breakdown of the mains power supply for the long duration the alternative action to be taken;



28. Manager/Asst. Manager /Junior Executive Trainee (Surveillance Systems) :-



(i) Title: - Manager/Asst. Manager /JET(Surveillance Systems) (ii) Job Summary: - Carrying out preventive and break down maintenance of Surveillance systems and other associated systems, keeping maintenance record, Coordinating with other agencies for smooth functioning of Surveillance systems and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Carrying out preventive maintenance schedules of Surveillance systems and


• Carrying out/helping in breakdown maintenance of Surveillance systems and associated system either alone or as part of maintenance team as the need may arise;







• To bring into notice of Sr. Manager /Jt. GM maintenance contracts issues of Surveillance systems, if required;

• Helping Asst. GM/Sr. Manager in carrying out annual evaluation of the performance of Surveillance systems;

• Helping in initiating action of preparation of survey reports of decommissioned and to be discarded Surveillance systems within a time frame of one month from the date of decommissioning.




facilities;





(v) Knowledge, experience, skills and abilities

• Posses proficiency and trained at concept level and equipment level on Surveillance systems ;

• Have knowledge of all maintenance schedules and CNS circulars related to Surveillance and other associated systems;

• Possess knowledge of Annex 10 Vol. III, IV,V and related DGCA Civil aviation requirements;

• Ability to carrying out Maintenance/adjustment of Surveillance systems independently or as a part of maintenance team;

• Posses’ knowledge about use of general and special purpose test equipments essential for maintenance of Surveillance systems and associated systems;

• Have knowledge about initiation for Notam action in respect Surveillance Systems in case of break down or maintenance of the facility;


• Should know about remote control line lay out and electric power distribution of the facilities and in case of breakdown of the mains power supply for the long duration the alternative action to be taken;



29. Manager/Asst. Manager /Junior Executive Trainee (ILS) (i) Title :- Manager/Asst. Manager /JET(ILS) (ii) Job Summary: - Carrying out preventive and break down maintenance of ILS and other associated systems, keeping maintenance record, coordinating with other agencies for smooth functioning of ILS and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Carrying out/helping in preventive maintenance schedules of ILS and associated

facilities as per approved maintenance schedules, their related documentation as per maintenance schedule and related guidelines;


• Coordinating with other agencies like GFS, Civil and Electrical wing for maintaining critical and sensitive area of ILS, Equipment room and effective air-conditioning and to bring into notice of Asst.GM /DGM pending issues in this regard;

• To assist Asst. GM /Sr. manager during flight check of the facility and to do coordination work in this regard;



• To assist Unit in charge in carrying out annual review of preventive maintenance schedules of the facilities;


• Maintain Site /Shift log books and to bring out into notice of Asst. GM/Sr. Manager unresolved maintenance and other issues ;To check the performance of back up systems at least once daily/shift and keep a record of same;

• To bring into notice of Sr. Manager /Jt. GM maintenance contracts issues of ILS, if required;

• Helping Asst. GM/Sr. Manager in carrying out annual evaluation of the performance of ILS;

• Helping in initiating action of preparation of survey reports of decommissioned and to be discarded ILS within a time frame of one month from the date of decommissioning.


• Preparation of fault report of unserviceable modules and coordination action for dispatching of faulty modules to SMU or repairing of the same at the station level if the SMU for the facility is not available; .


facilities;



(v) Knowledge, experience, skills and abilities • Posses proficiency and trained at concept level and equipment level on ILS ; • Have knowledge of all maintenance schedules and CNS circulars related to ILS

and other associated systems; • Possess knowledge about ground adjustments required during flight check of the

facility; • Possess knowledge of Annex 10 Vol.I,V, DOC 8071 and related DGCA Civil

aviation requirements; • Ability to carrying out Maintenance/adjustment of ILS independently or as a part

of maintenance team; • Posses’ knowledge about use of general and special purpose test equipments

essential for maintenance of ILS and associated systems; • Have knowledge about initiation for Notam action in respect of ILS in case of

break down or maintenance of the facility; • Should have familiarity of working with ATC functionalities, ATC






• Should have knowledge about the emergency communication facilities available in the unit.

30. Manager/Asst. Manager /Junior Executive Trainee (DVOR/DME)

(i) Title :-Manager/Asst. Manager /JET(DVOR/DME) :- (ii) Job Summary: - Carrying out preventive and break down maintenance of DVOR/DME and other associated systems, keeping maintenance record, coordinating with other agencies for smooth functioning of DVOR/DME and carry out associated administrative functions and any other works assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Carrying out/helping in preventive maintenance schedules of DVOR/DME and



• Coordinating with other agencies like GFS, Civil and Electrical wing for maintaining critical and sensitive area of DVOR/DME, Equipment room and effective air-conditioning and to bring into notice of Asst.GM /DGM pending issues in this regard;

• To assist Asst. GM /Sr. manager during flight check of the facility and to do coordination work in this regard;

• To assist Unit in charge in carrying out annual review of preventive maintenance schedules of the facilities;


• Maintain Site /Shift log books and to bring out into notice of Asst. GM/Sr. Manager unresolved maintenance and other issues ;To check the performance of back up systems at least once daily/shift and keep a record of same;

• To bring into notice of Sr. Manager /Jt. GM maintenance contracts issues of DVOR/DME, if required;

• Helping Asst. GM/Sr. Manager in carrying out annual evaluation of the performance of DVOR/DME;

• Helping in initiating action of preparation of survey reports of decommissioned and to be discarded DVOR/DME within a time frame of one month from the date of decommissioning.


• Preparation of fault report of unserviceable modules and coordination action for dispatching of faulty modules to SMU or repairing of the same at the station level if the SMU for the facility is not available; .




facilities; Additional works



(v) Knowledge, experience, skills and abilities • Posses proficiency and trained at concept level and equipment level on

DVOR/DME ; • Have knowledge of all maintenance schedules and CNS circulars related to

DVOR/DME and other associated systems; • Possess knowledge about ground adjustments required during flight check of the

facility; • Possess knowledge of Annex 10 Vol.I, III, IV DOC 8071 and related DGCA

Civil aviation requirements; • Ability to carrying out Maintenance/adjustment of DVOR/DME independently or

as a part of maintenance team; • Posses’ knowledge about use of general and special purpose test equipments

essential for maintenance of DVOR/DME and associated systems; • Have knowledge about initiation for Notam action in respect of DVOR/DME in

case of break down or maintenance of the facility; • Should have familiarity of working with ATC functionalities, ATC





31.MANAGER /ASSISTANT MANAGER (COM - OPERATIONS (SHIFT): (i).Title : Manager/Asst. Manager (Com-shift) (ii).Job Summary : Carrying out preventive and break down maintenance of Lines/Circuits and other associated systems, keeping maintenance/operational record, coordinating with other agencies for smooth functioning of various units , working in various units of Communication Operation and carry out associated administrative functions and any other works assigned to him/her. (iii).Duties and Responsibilities: Maintenance and Operation :



Operation in various units of AMSS (Booking/Supervisor), HFRT (MWARA / RDARA), NOTAM, and Briefing and in AHCR covering shifts.

Working in all areas of Aeronautical Fixed Services/Aeronautical Mobile Services/ Aeronautical Information services such as Communication Briefing, NOTAM.

Monitor the serviceability of Data lines. Assisting DGM/ Jt. GM (Com) in the preparation of duty schedule/Training

Schedule. Keeping record of Communication for Long Term /Short Term retention

according to DGCA CAR/ICAO Standards. Maintaining Statistics of Channel Serviceability/Traffic statistics/Transit time

statistics. Covering the entire operations in addition to the normal duties allotted in case of

extension of watch hours in field stations. Preparation of Monthly Communication Return/Half yearly Communication

Return. Additional works :

• Carry out any additional works as and when assigned by Superior authorities. (iv)Accountability

• He is accountable to Shift in charge (v). Knowledge, Experience, Skills and Abilities :

Posses proficiency or trained at different levels in one or more services mentioned above. Having working experience in all units. Posses knowledge of ICAO Annex.10 Vol II & Vol.V, Annex 15

Doc.8585,8400,8126,7030,9734,9705 and Civil Aviation Requirement(CAR) by DGCA. Having good communication skills in Hindi/English. Having ability in coaching and impart training to subordinates. Able to represent Airports Authority of India in

Workshops/Seminars/Conventions relating to aviation/non-aviation fields.

32. Commuunication Navigation, Surveillance Incharge at ACS (i) Title: - CNS in charge (ii) Job Summary:- Supervision of preventive and break down maintenance of CNS/ATM system facilities, Airport Security equipments and associated facilities of Aeronautical Communication Station/ Airport, timely procurement of spares, working out training requirement of CNS personnel’s working under him for training at regional training centre (RTC) and CATC and submission of same to Regional Headquarter , carry out associated administrative function and financial activities like preparation of annual budget, exercise of financial powers and any other function assigned to him.




Maintenance • To ensure availability of Preventive maintenance schedules of CNS and Airport

Security equipments installed at the ACS/Airport and CNS circulars issued from time to time to the units;

• To ensure availability of relevant ICAO Annex and documents ACS/airport; • To ensure availability of technical manuals to the ACS/Airport for module level

maintenance; • To supervise for strict adherence to preventive maintenance schedules, their

related documentation and guidelines of the CNS circulars in respect of CNS/ATM systems and security equipments;

• Carry out annual review of preventive maintenance schedules in consultation with his subordinates and provide his inputs to Regional headquarter ;

• To keep main and standby channel of a facility always serviceable at the Stations under his control by:-

a) Organize timely actions to procure adequate spare parts/modules within his power; b) Project requirements of spare modules/parts sufficiently in advance to Regional head quarter (RHQ)/ central Radio stores depot (CRSD) for their timely procurement;

• To take adequate advance actions for renewal of maintenance contracts under his delegation of powers, if required.

• Carry out annual evaluation of the performance of CNS facilities in his region and; (i) Advise station for corrective action (ii) Recommend to RHQ actions to improve their performance or replace them if service life exceeds its specified life time; • To organize preparation of survey reports of decommissioned and to be discarded

CNS and Airports security equipment at Airport/ACS within a time frame of one month from the date of decommissioning;

• To monitor the performance, if available, of HF communication channels, and AFTN channels and take action for upgrading or additional channels if congestion is above AAI/ICAO limits;


• To initiate action for preliminary site selection of CNS and associated facilities and as per CHQ directions forward reports in this regard to RHQ.

• To monitor the working of the Notam Office at the Airport. • Coordinate with RHQ for flight inspection of Navigation facilities within its

specified time period. • To organize with all concerned for annual physical verification of CNS assets. • To generate and forward MIS and other reports/returns to RHQ/CHQ on regular

basis. • Yearly review of Station CNS manuals under his control. • Ensure adherence to safety management requirements of the CNS/ATM systems

and Airport security equipments at ACS/airport • Ensuring corrective is taken on the aviation safety reports of stations received

from DGCA/Aviation Safety Directorate in respect of CNS/ATM facilities and



Airport Security equipments and to bring into notice of RHQ/CHQ, requiring action at RHQ/CHQ level.

Training • To deploy trained or proficient manpower for the maintenance works by:-

a) Organize actions to work out requirement of annual training of station maintenance personnel after transfers preferably in the month of August and forward the requirement to CATC and RHQ; b)To nominate CNS personnel for training in CATC/RTC as per approved training calendar;


action to implement actionable points of the minutes of meeting; • To inspect ACS /Airport as and when required and to advise/take remedial action

on the shortcomings noticed during inspection; • Takes actions to promote harmonious relation among the employee; • Takes administrative action to maintain discipline.


sanctions to support maintenance of CNS facilities; • Takes actions for preparation of proposals which are beyond his powers and

forward to superior authorities for obtaining expeditious approval; • Takes timely action to prepare annual budget of CNS and forward to concerned

department; • Follow vigilance guidelines and promote culture of honesty and transparency in

discharging official functions. Additional works Carry out additional works assigned to him by superior authorities.

(iv) Accountability He is accountable to Airport Director/Airport controller or Station in Charge as the case may be..

33. General Manager/Chief Instructor (CNS) CATC, Allahabad

(i) Title: - GM / Chief Instructor CNS, CATC, Allahabad (ii) Job Summary: - Control, management and responsibility in managing CNS faculty at CATC. Working out annual training schedules, course schedules for CATC and RTCs, design and development of new courses in CNS faculty, supervise training activities and participate as Chairman/ member of examinations, responsibilities related to ISO certification, carry out associated administrative function and financial activities like preparation of annual budget, exercise of financial powers and any other function assigned to him. (iii) Duties and Responsibilities:-



Maintenance • Ensure availability of technical manuals to the units for module level maintenance

and training. • Ensure serviceability of main and standby channels of all facilities/ equipments

available for training - a) Organize timely actions to procure adequate spare parts/modules within

his power. b) Project requirements of spare modules/parts sufficiently in advance to

corporate head quarter (CHQ)/ central radio stores depot (CRSD) for their timely procurement.

• Take adequate advance actions for renewal of maintenance contracts, if required. • Carry out annual evaluation of the performance of CNS training facilities and

recommend to CHQ actions to improve their performance or replace them if service life exceeds its specified life time.

• Organize preparation of survey reports of decommissioned and to be discarded CNS training facilities within a time frame of one month from the date of decommissioning.

• Ensure preventive maintenance and serviceability of all facilities/ equipment at the Civil Air Terminal Allahabad.

Training • Ensure timely preparation of Training Calendar for both CATC (CNS Faculty)

and RTCs in coordination with CHQ, and timely circulate to CHQ and RHQs • Ensure timely preparation of course schedules for CNS Faculty in consultation

with Principal CATC and submission of same to CHQ for approval.. • Design and development of new courses in respect of Communication, Navigation

and Surveillance. • Supervise training activities. • Participate as Chairman/ member of examinations as per assignments. • Conduct Proficiency examinations for CNS personnel in coordination with CHQ • Maintain detail records of courses, examination, results of CNS training. • Participate and facilitate in the preparations of STPs. Administrative function • To distribute and deploy available manpower to various CNS units and project

additional requirements to CHQ • To plan and implement procedures for improvement of CNS trainings. • Conducts interactive meeting with faculty members once every month and take

follow up action to implement actionable points of the minutes of meeting. • Takes actions to promote harmonious relation among the employee. • Takes administrative action to maintain discipline. • Ensure under his supervision the reporting and reviewing process of ACRs of all

staff and officers of the CNS faculty is completed. • He acts as the reporting officer for all Jt. GM/DGM for ACRs and acts as the

reviewing officer for all other officers up to the rank of Asst. GM of the CNS discipline.



• To accord administrative approval for all procurement actions initiated by the CNS units. He also nominates committee members for completing the procurement process.

• To accord administrative approval for allotment of official quarters within the CNS Wing and other related matters.

• Leave (Casual and Restricted) of all Jt. GM/DGM are sanctioned by him and he is the recommending officer for their Earned Leaves.

• To access the training needs for CNS faculty and arrange trainings for them

Financial Activities • Under his supervision an Imprest account is maintained for CNS wing to meet the

day to day requirements • Exercises financial power as per DOP to accord administrative and expenditure

sanctions to support maintenance of CNS training facilities at CATC and Civil Air Terminal.

• Takes actions for preparation of proposals which are beyond his powers and forward to superior authorities for obtaining expeditious approval.

• Takes timely action to prepare annual budget of CNS faculty and forward to concerned department.


Additional works Carry out additional works assigned to him by Principal or by superior authorities.

(iii)Accountability He is accountable to Principal/Executive Director of CATC.

34. Jt. General Manager/Deputy General Manager (CNS),CATC (i) Title: - Jt.GM /DGM (CNS), CATC, Allahabad (ii) Job Summary: - Supervise in conducting of the training programs. Assist GM (CNS) in preparation of training calendars, course schedules for CATC and RTCs, design and development of new courses in CNS faculty. Heads a group of instructors, Labs and Units. Conduct Theoretical and Practical examinations and viva-voce. Participate as Chairman/ member of examinations, responsibilities related to ISO certification, carry out associated administrative function and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Ensure proper maintenance and availability of main and standby channels of a

facility in the Labs for practical classes • Ensure availability of ATC Labs for practical • Initiate actions for procurement of adequate spare parts/modules. • Take adequate advance actions for renewal of maintenance contracts, if required.



• Carry out time to time evaluation of the performance CNS facilities and recommend to GM (CNS) actions to improve their performance or replace them if service life exceeds its specified life time.

Training • Conduct Theoretical and Practical classes as per course/ weekly schedule and

prescribed syllabus • Conduct Theoretical and Practical exams and viva-voce • Review question banks • Heads a group of Instructors, Labs and Units • Assist GM (CNS) in preparation of Training Calendar and course schedules for

CNS Faculty • Design and development of new courses in respect of Communication, Navigation

and Surveillance with the approval from competent authority • Participate as Chairman/ member of examinations as per assignments • Assist GM (CNS) in conducting all India open Proficiency examinations for CNS

personnel in coordination with CHQ • Maintain records of courses, examination , results • Participate and facilitate in the preparations of STPs when required Administrative function • Assist GM (CNS) and Principal in various administrative jobs. • To plan and suggests GM (CNS) procedures for improvement of CNS trainings • He acts as the reporting officer for all Asst. GM / SMs for ACRs and acts as the

reviewing officer for all other officers up to the rank of Managers of the CNS discipline.

• Leave (Casual and Restricted) of all Asst. GM/ SM/ Manager/ AM are sanctioned by him and he is the recommending officer for their Earned Leaves.

• To access the training needs for staff and officers working directly under him and recommend trainings for them

• Conducts interactive meeting with staff in his Group atleast once every month and take follow up action to implement actionable points of the minutes of meeting.

• Ensure attendance for staff and officers • Takes actions to promote harmonious relation among the staff and officers in his

Group • If required, takes administrative action to maintain discipline.


• Assist GM (CNS) for timely action to prepare annual budget of CNS Faculty and

forward to concerned department and other financial activities. • Follow vigilance guidelines and promote culture of honesty and transparency in




Additional works Carry out additional works assigned to him by Principal or by superior authorities.

(iv) Accountability He reports to General Manager (CNS) and Principal/Executive Director of CATC.

(v) Knowledge, experience, skills and abilities • Posses proficiency or trained at concept level on various facilities/ equipments • Have knowledge of all maintenance schedules and CNS circulars related to CNS

facilities • Possess sound knowledge of Annex 10 vol I , vol III, Doc 8071,

8585,8400,8126,7030,9734,9705 and related Civil Aviation Requirement (CAR) of DGCA.

• Have working knowledge of AAI financial management system and Delegation of financial power (DOP)

• Have the working knowledge AAI disciplinary and appeal rules • Should be able to dictate letters in Hindi/English • Have ability to carry out correspondence in Hindi/English through E-mail • Have good knowledge of working with computer and able to use window




promote harmonious relation among them

35. Asst. General Manager/Sr. Manager (Instructor), CATC,Allahabad (i) Title: - Asst. GM/ Sr. Manager (CNS (ii) Job Summary: - Supervise proper functioning of all facilities/ equipment, test equipment etc. in the Labs. Ensure upkeep of the inventory. Conduct Theoretical and Practical classes as per course/ weekly schedule and the prescribed syllabus. Prepare question bank and evaluate answer sheets. Carry out the responsibilities of Course Coordinator as and when assigned to. Participate as Chairman/ member of examinations, responsibilities related to ISO certification, carry out associated administrative function and any other function assigned to him. (iii)Duties and Responsibilities:- Maintenance

• Ensure proper maintenance and serviceability of main and standby channels of a facility in the Labs for practical classes

• Ensure proper maintenance and serviceability of ATC Labs for practical classes • Initiate actions for procurement of adequate spare parts/modules.



Training

• Conduct Theoretical and Practical classes as per course/ weekly schedule and

prescribed syllabus • Conduct Theoretical and Practical exams and viva-voce as and when assigned • Prepare question banks • Any additional responsibilities such as –

i. Course Coordinator ii. Course Planning

iii. Course Development & Review iv. Examination Cell

• Participate as Chairman/ member of examinations as per assignments • Assist GM (CNS) in conducting all India open Proficiency examinations • Participate in the preparations of STPs when required Administrative function • To plan and suggests JtGM/DGM (CNS) procedures for improvement of CNS

trainings • Ensure attendance for staff and officers • Takes actions to promote harmonious relation among the employee. • He acts as the reporting officer for all Managers / AM/ Superintendent/ Sr

Assistants for ACRs in the CNS discipline. • Leave (Casual and Restricted) of all Superintendent/ Sr. Assistant are sanctioned

by him and he is the recommending officer for their Earned Leaves. • Additional responsibilities, if assigned:

i. CNS office

Financial Activities • Additional responsibilities, if assigned:

ii. Assist GM (CNS)/DGM (CNS) in preparation of annual budget of CNS Faculty

iii. Maintain Imprest account iv. Procurement

Additional works • Carry out additional works assigned to him by superior authorities, such as:

i. Installation ii. Stock verification

iii. Resource Center iv. Welfare and Security Officer v. M.T. Officer

vi. Management Representative ISO

(iv) Accountability He reports to General Manager (CNS) and Principal/Executive Director of CATC.



(v) Knowledge, experience, skills and abilities

• Posses proficiency or trained at concept level on CNS facilities/ equipments • Have knowledge of all maintenance schedules and CNS circulars related to CNS

facilities • Possess sound knowledge of ICAO Annexes, ICAO DOCs and related Civil

Aviation Requirement (CAR) of DGCA. • Have working knowledge of AAI financial management system and Delegation of

financial power (DOP) • Should be able to dictate letters in Hindi/English • Have ability to carry out correspondence in Hindi/English through E-mail • Have good knowledge of working with computer and able to use window




promote harmonious relation among them 36. Deputy Genera Manager/Jt. General Manager (Regional Training Centre ) :- (i) Title: - Jt.GM/DGM (CNS), RTC (ii) Job Summary: - Supervise in conducting of the training programs as per Training Calendar. Nominate staff and officers from the Region for CATC, RTC and NIAMAR training. Under instructions from CATC/ CHQ supervise Proficiency related examinations in the CNS discipline for the Region. Arrange for OJTs/ Practical classes in coordination with Unit in-charges for facility/ equipment based training. Arrange for security passes for the trainees. Maintain records of all training conducted, nomination of trainees and Proficiency held by all officers in the Region. To access the training needs for staff and officers in the Region. Conduct Theoretical and Practical examinations and viva-voce. Participate as Chairman/ member of examinations; carry out associated administrative function and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Ensure proper maintenance of classrooms, teaching aids viz. OHP, Projector etc. • Ensure serviceability of photocopiers, printers, computers, lamination machines

etc. of RTC • Ensure maintenance, serviceability, calibration of test equipment, if available. • Take adequate advance actions for renewal of maintenance contracts, if required,

for photocopier, computers, printers etc. • Ensure upkeep of the inventory



Training • Conduct Theoretical and Practical classes as per course/ weekly schedule and

prescribed syllabus • Conduct Theoretical and Practical exams and viva-voce • Review question banks • Design and development of new courses in respect of Communication, Navigation

and Surveillance as per approved courses from CATC/ competent authority • Participate as Chairman/ member of examinations as per assignments • Assist CATC/ CHQ in conducting all India open Proficiency examinations for

CNS personnel in the Region • Maintain records of courses, examination , results • Maintain records of Proficiency held by all officers in the Region • Regular coordination with CATC for training activities Administrative function • Responsible for managing RTC functions at ACS. • To allocate responsibilities to staff and officers within the RTC • To plan and suggests GM (CNS) procedures for improvement of CNS trainings • Nominate staff and officers from the Region for CATC, RTC and NIAMAR

training. • To coordinate with external agencies for seminars and external training as and

when required • To supervise issue of orders for payment actions for Proficiency in the CNS

discipline, with the approval from GM (CNS) • To coordinate with educational institutes for industrial visits and vocational

projects as and when requested for the same. • He acts as the reporting officer for all Asst. GM / SMs for ACRs and acts as the

reviewing officer for all other officers up to the rank of Managers of the RTC • Leave (Casual and Restricted) of all staff and are sanctioned by him and he is the

recommending officer for their Earned Leaves. • To access the training needs for staff and officers working directly under him and

recommend trainings for them • Conducts interactive meeting with staff atleast once every month and take follow

up action to implement actionable points of the minutes of meeting. • Ensure attendance for staff and officers • Takes actions to promote harmonious relation among the staff and officers in his

Group • If required, takes administrative action to maintain discipline.

Financial Activities • Assist GM (CNS) for timely action to prepare annual budget of RTC and forward

to concerned department and other financial activities. • Follow vigilance guidelines and promote culture of honesty and transparency in

discharging official functions. Additional works



Carry out additional works assigned to him by superior authorities.

(iv) Accountability He reports to General Manager (CNS) of ACS.


facilities • Possess sound knowledge of ICAO Annex 10,15 and ICAO DOC8071 and

related Civil Aviation Requirement (CAR) of DGCA. • Have working knowledge of AAI financial management system and Delegation of






37. Asst. Genera Manager/Senior Manager (Regional Training Centre ) :-

(i) Title: - Asst. GM/ Sr. Manager (CNS), RTC (ii)Job Summary: - Supervise proper functioning of all facilities/ equipment, test equipment etc. in the Labs. Ensure upkeep of the inventory. Conduct Theoretical and Practical classes as per course/ weekly schedule and the prescribed syllabus. Prepare question bank and evaluate answer sheets. Carry out the responsibilities of Course Coordinator as and when assigned to. Participate as member of examinations; carry out associated administrative function and any other function assigned to him. (iii) Duties and Responsibilities:-

Maintenance • Ensure proper maintenance of classrooms, teaching aids viz. OHP, Projector etc. • Ensure serviceability of photocopiers, printers, computers, lamination machines

etc. of RTC • Ensure maintenance, serviceability, calibration of test equipment, if available. • Ensure upkeep of the inventory Training • Conduct Theoretical and Practical classes as per course/ weekly schedule and

prescribed syllabus • Conduct Theoretical and Practical exams and viva-voce as and when assigned



• Prepare question banks • Any additional responsibilities such as –

i. Course Coordinator ii. Course Development

• Participate as member of examinations as per assignments • Assist Jt. GM/DGM (CNS) RTC in conducting Proficiency examinations of CNS

personnel. Administrative function • To plan and suggests Jt. GM /DGM (CNS) RTC procedures for improvement of

RTC training. • Ensure attendance for staff and officers. • Takes actions to promote harmonious relation among the employee. • He acts as the reporting officer for all Managers / AM/ Superintendent/ Sr

Assistants for ACRs in RTC. • Additional assigned responsibilities, if any

Financial Activities • Assist Jt.GM/DGM (CNS) RTC in preparation of RTC Budget • Follow vigilance guidelines and promote culture of honesty and transparency in

discharging official functions

Additional works • Carry out additional works assigned to him by superior authorities

(iv)Accountability He reports to Jt.GM/DGM (CNS) RTC


facilities • Possess sound knowledge of ICAO Annex 10,15 and ICAO DOC8071 and

related Civil Aviation Requirement (CAR) of DGCA. • Have working knowledge of AAI financial management system and Delegation of








38. Shift Supervisor Officer (SSO), CNS(at Major Airports) (i) Title :- Shift Supervisor Officer (SSO), CNS (ii) Job Summary: All the CNS operational personnel (Shift duty) work under the supervision of SSO. SSO shall be the l authority for management of his shift and he will ensure coverage of positions and channels in accordance with guidelines provided by concerned unit in charges/DGM/AGM/GM (CNS). (iii) Duties and Responsibilities

To ensure punctuality and discipline of all employees under his control in various

CNS Units. To take over in writing all facilities from the predecessors, who will make over in

writing the status of all CNS facilities and perusal activities for already initiated actions. To maintain the attendance register for all employees under his control for both

executives and non executives and absentee record shall be made available to the concerned unit in charges on request. For facilities which remain unserviceable for more than 30 minutes and requires

NOTAM action, SSO shall take NOTAM action in consultation with the concerned shift duty personnel. After the NOTAM action SSO shall ensure follow up remedial action for early restoration of concerned CNS facilities at Airport and subsequent cancellation of NOTAM. For facilities which remains unserviceable , for which however no NOTAM action

is required, SSO shall do all coordination work for the same and for U/S period of more than 2 Hours, the matter should be intimated to the unit incharges, DGM/AGM, if their intervention required. To review the status of all unserviceable facilities on duty take over and should

initiate fresh actions if any. This is done with an intention that proper attention is given to all unserviceable facilities till they are made serviceable. In case of any facility remains unserviceable and requires presence of the

maintenance team, SSO shall ensure timely and expeditious calling action and shall keep coordination with all concerned to remain abreast with the status/ restoration action of the unserviceable facility. On taking over charge SSO shall telephonically coordinate with all the CNS Units

and get apprise of the status of man, machine, backlog and pending complaints for his follow up action. In case, any unserviceability is persisting for a longer duration necessary intimation should be given to concerned unit incharges and DGM AGMs for reinforcement for early restoration of the facility.



To take up coordination with MTNL/VSNL by himself if required for expeditious restoration of all Auto Telephones, National and International Voice and Data circuits. during closed hours SSO shall inform all unit in charges about VVIP movements

and should monitor the operational requirements till VVIP movements are over. In case of outstation VVIP movements SSO shall do all coordination with in the Region. During the incident of hijacking, Anti Hijacking Control Room should be

activated and SSO shall ensure all cooperation to WSO in this regard. Necessary information in this regard should be passed on to GM (CNS)/CNS in charge. To ensure sealing of tapes/logbooks and copy of messages pertaining to any

mishap/accident/incident requiring investigation by officers of Airports Authority of India or from outside agencies. The sealed documents/evidence shall be handed over to GM(CNS)/CNS incharge on the next working day. Before sealing such evidence he shall obtain permission of GM(CNS/CNS) in charge or RED. To ensure availability of adequate stores/stationary/tape recorder spools etc for

operational requirements when office is not open. The continued availability of such items shall also be the responsibility of the SSO on day duty. In case any employee indulging in any incident or misconduct, SSO shall

immediately call for his explanation and forward a copy of the memo along with his comments to the concerned DGM/AGM or GM(CNS)/CNS in charge on the next working day, so that necessary follow up action can be taken. To ensure that all people contribute their assistance to optimize the operational

efficiency and no person should waste his time and/or others time unnecessarily. For the optimum working of various CNS units SSO shall coordinate with the

Engineering wing (Civil/Electrical) for power supply and Air-conditioning related problems. In case of incident of fire in any of the CNS units, SSO shall ensure immediate

assistance from AAI Fire Control Station. During closed hours and closed holidays SSO shall be responsible for the delivery

of office order/relieving order etc. to the concerned employees. any employee joining duty after tour/transfer SSO shall obtain the prior

concurrence of the concerned DGM/AGM or GM(CNS). Pending this the joining will be provisional subject to approval of GM(CNS) on the following day and he shall apprise the same to the concerned on his joining report in writing. To ensure that Executives/employees reporting after availing leave shall be taken

on duty only after submission of leave application which may be supported by proper Medical certificate/Fitness certificate in case of medical leave. To coordinate with all Regional Airports for all CNS related operational matters

and initiate NOTAM actions for facilities, if required.



To carry out surprise checks, in any of the CNS units and forward his observations

confidentially in writing to the GM(CNS) on the following working day. In case of any reported theft by any of the CNS personnel, SSO shall intimate the

same to concerned Unit Incharge/DGM/GM. In coordination with the concerned personnel he should launch a complaint with the CISF/Local Police station in writing and a copy of the same should be forwarded to GM(CNS) on the next working day for further perusal. To coordinate with the DGCA and Air Safety Department for incident/accident

reports. All decisions of SSO shall be guided by operational requirements of Airport CNS

facilities operation.. In addition to the above, SSO takes additional responsibilities as and when

assigned by GM (CNS) or by appropriate authority. Additional works

In addition to the above, SSO takes additional responsibilities as and when assigned by GM (CNS) or by appropriate authority.

(iv) Accountability: He is accountable to GM (CNS)/Airport Director/Airport Controller or CNS in charge as the case may be. (v) Knowledge, experience, skills and abilities • Should have knowledge about working of CNS facilities at the stations. • Have knowledge of maintenance schedules and CNS circulars regarding CNS • Possess sound knowledge of Annex 10, Annex 15 and ICAO DOC8071, 8126 and

8400 and DGCA CAR. • Have working knowledge of AAI financial management system and Delegation of

financial power (DOP) • Should be able to dictate letters in Hindi/English • Have ability to carry out correspondence in Hindi/English through E-mail • Have good knowledge of working with computer and able to use window


• Have the ability to clearly express his views in Hindi/English • Maintain good working relationship with higher authorities. • Have the ability to effectively manage human resource working under him and

promote harmonious relation among them



Notes :-