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TRANSCRIPT
1EAGOSH Recommendation May 2007
Presented byHarry Galvin
Safety and Security ManagerSR Technics Ireland
&Kieran Mooney
Facilities Maintenance ManagerSR Technics Ireland
Hangar Door Operating SystemEAGOSH Recommendation
May 2007
2EAGOSH Recommendation May 2007
The function of the hangar doors is to open and close toallow aircraft, vehicles, equipment and personnel enter andexit
The movement of the doors can produce hazardoussituations which cannot be avoided in the design.
These hazardous situations include collisions, impact,crushing, shearing and drawingin points.
Safety devices and operational procedures can be insertedand/or implemented to reduce the risk to the lowest levelpossible.
Hangar Door Hazards
3EAGOSH Recommendation May 2007
Collision of moving door with people, vehicles, aircraft, equipmentPersonnel riding on doorsPersonnel stepping in the path of moving doorEntrapment of people as doors pass by each other.Entrapment of people as doors reach the Hangar end wall.Employees using the personnel door to enter or exit the Hangar whilemain door is movingEntrapment of limbs between doors as the move past each otherEntrapment of limbs in wheels and cogs on drive motorElectric shock from electric door supply and power sourcesIn manual operation possible misuse of or failure to use the tow barIn manual operation failure to follow the correct procedure for tow baruse
Risks
4EAGOSH Recommendation May 2007
To reduce the risks to the lowest level reasonable practicable thefollowing controls have been introduced.
Interlocks on each set of personnel doors
Two Safety Edges on the end of each door
5 Flashing beacons on each door
Warning sounders on each door which activate before door movement
Emergency stops at each control switch on each door
Emergency stop buttons at each personnel door and at end of each door
Controls
5EAGOSH Recommendation May 2007
Automatic stops on all doors at close position.
Low speed operation (approx. 10 mtrs per min)
All wheels and cogs fenced off.
Preventative maintenance programme to include a weeklyinspection of the safety devices on each door.
Fence off the inside of each door to prevent ride on, orother events which could lead to personnel entering into oron the doors.
Controls
6EAGOSH Recommendation May 2007
Install magnetic locks on personnel doors which are activated bythe main door movement to prevent door opening.
Change the control button operation into a Joystick type controlwhich will be easier for the operator to activate and understand.
Upon installation of the controls undertake a staff briefing on thenew method of operation
Position the tow bars at a central location.
Install new signage to outline the essential safety/operatinginstructions.
Controls
7EAGOSH Recommendation May 2007
Paint hivisibility Chevron stripes inside and outside of each door
Paint the tow bars a distinct hivisibility colour.
Paint the towing hitch a distinct hivisibility colour.
Paint along tracks with yellow/black colouring to highlight area ofdoor tracks.
Paint end of each door a Hi Vis colour
All cogs and wheels on drive motors covered
Electric safety control circuits
Controls
8EAGOSH Recommendation May 2007
Hangar Doors Before Upgrade
9EAGOSH Recommendation May 2007
Hangar Doors Before Upgrade
10EAGOSH Recommendation May 2007
Hangar Doors Before Upgrade
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Improved Ground Markings
12EAGOSH Recommendation May 2007
Door Interior Protection and Markings
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Door Exterior Markings
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Old Control Buttons
15EAGOSH Recommendation May 2007
Control Station Interior
16EAGOSH Recommendation May 2007
Control Station and Signage Interior
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Control Station Exterior
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Control Station and Signage Exterior
19EAGOSH Recommendation May 2007
Warning Lights
20EAGOSH Recommendation May 2007
Warning Lights and Emergency Stop
21EAGOSH Recommendation May 2007
Warning Lights and Emergency Stop
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Emergency Stops
23EAGOSH Recommendation May 2007
Clutch Access Signage and Lock Out
24EAGOSH Recommendation May 2007
Clutch Access Signage and Lock Out
25EAGOSH Recommendation May 2007
Door End Emergency Stop, Signage and Light
26EAGOSH Recommendation May 2007
Door End Safety Edges and Brushes
27EAGOSH Recommendation May 2007
Clutch and Tow Hitch Signage
28EAGOSH Recommendation May 2007
Clutch and Tow Hitch Signage
29EAGOSH Recommendation May 2007
Tow Bar Location and Signage
30EAGOSH Recommendation May 2007
Personnel Doors
31EAGOSH Recommendation May 2007
Personnel Door Magnetic Locks
32EAGOSH Recommendation May 2007
Safety Control System installedOn
Main Hangar Doors
33EAGOSH Recommendation May 2007
• Manrelated factors
• Machinerelated factors
• Plantrelated factors
Causes of Accidents in the Workplace
34EAGOSH Recommendation May 2007
Manrelated Factors
• Failure to comply with procedure• Over familiarity with danger through habit• Poor grasp of machine design and controls• Underestimating the hazards –ignoring safety
safeguards• Lack of training/awareness• Inadequate maintenance
35EAGOSH Recommendation May 2007
Machinerelated Factors
• Inadequate safety guarding• Sophisticated nature of controls• Inherent machine hazards
• sudden starting• precarious stopping
• Machine not suitable to the application orenvironment
36EAGOSH Recommendation May 2007
Plantrelated Factors
• Movement of personnel
• Machinery using different technologies
37EAGOSH Recommendation May 2007
Other Factors
• Possibility of overriding safety measuresSlows down productionDifficult to implementMany operatives involvedSafety measures are not recognised as such
• Reliability of safety functionsReliability of components and principles usedComponent failurePower failure or Electrical interference
38EAGOSH Recommendation May 2007
Risk Assessment
• Current Regulations and Standards• Industry Best Practice• Further Internal Considerations to minimise the
risk of an accident
Overall evaluation of the risk is a balancedconsideration of all the above factors ensuringcompliancy with:
39EAGOSH Recommendation May 2007
Factors affecting the Risk –S,F,P
• S Seriousness of possible injury
• F Frequency and duration of exposure inthe danger zone
• P Probability of the risk occurring
40EAGOSH Recommendation May 2007
Categories of Controls relating tosafety conforming to EN 9541
Safety function always ensured4
Safety function ensured except in the eventof an accumulation of faults3
Fault detected at each test2
Possible loss of control function but withless probability than with B1
Possible loss of control functionBBehaviour in the event of a faultCategory
41EAGOSH Recommendation May 2007
Practical method for calculating a safetycontrol category using factors S, F, P.
S Result of the accidentS1 Slight injuryS2 Serious and permanent
injury to or death of theperson
F Presence in the dangerzone
F1 Rare to fairly frequentF2 Frequent to permanentP Possibility of preventing
the accidentP1 Possible in certain
circumstancesP2 Virtually impossible
S1
P1
F1P2
S2
F2 P1
P2
Caterories
Perferred category
Measures exceeding min. requirements for risk involved
Possible category requiring additional measures
B 1 2 3 4
42EAGOSH Recommendation May 2007
Categories of Controls relating tosafety conforming to EN 9541
Safety function always ensured4
Safety function ensured except in the eventof an accumulation of faults3
Fault detected at each test2
Possible loss of control function but withless probability than with B1
Possible loss of control functionBBehaviour in the event of a faultCategory
43EAGOSH Recommendation May 2007
44EAGOSH Recommendation May 2007
45EAGOSH Recommendation May 2007
46EAGOSH Recommendation May 2007
47EAGOSH Recommendation May 2007
Thank you
Any questions?