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MAINTENANCE SCHEDULE FOR THE
L410 UVP-E20 AEROPLANE WITHOUT OVERHAUL
Chapter 9.7. is approved by the Civil Aviation Inspection of the Czech Republic in Prague
\37h August 1995
LET KUNOVICE 686 04 Kunovice Czech Republic
We cannot correct an error unless we know of its existence, therefore, it is essen- tial that you do your part. Comments, corrections regarding this manual are wel- comed and should be sent to:
Documentation Department LET, a.s. 686 04 Kunovice Czech Republic EUROPE
or fax us to:
Documentation Department +4ZO 632 61 352
or send us e-mail to:
dnts@let.cz
I @ 1998 LET, a.s.. 686 04 Kunovice, Czech Republic
All rights reserved. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and re- cording, for any purpose without the express written.permission of LET, a.s..
. , I
LET L 410 UVP-E20
-1NTENANCE SCHEDULE
Temp. rev. No
Section No Page No
Aug 31/95
RECORD OF TEMPORARY REVISIONS
Accomp.document No and d a t e
Signature Date
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Section No Page No
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Signi Date
Aug 3 1 / 9 5
LETECKE ZAVODY a . s . L 410 UVP-E20
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RECORD OF REVISIONS
Date of I s s u e of N e w Pages
Aug 31/98
J u l 15/99
Sep 25/01
Number of Revised Pages
l a t e of Entry snd Si- gna tu re
CAA aPP- roved
May 28/98
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Rev. No.
5 .
RECORD OF REVISIONS
Date of Issue of New Pages
Jan 12/02
3AA 3PP- roved
Feb 4/02
Number of Revised Pages
Page 0-4
Date of Entry and Si- gnature
Jan 12/02
C h a p t e r S e c t i o n Subjec t
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CONTENTS
INTRODUC- TION
LETECKE ZAVODY a . s . L 410 UVP-E20
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C h a p t e r Sec t i on Subject
IIRWORTHI- (ESS L I M I - FATION SE- 3TION-TI- YE L I M I T S / UIAINTENAN- 3E CHECKS
XOUTINE WINTENAN- 3E :
PERIODIC UIAINTENAN- 3 E
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C h a p t e r S e c t i o n S u b j e c t
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C h a p t e r S e c t i o n S u b j e c t
PERIODIC UINTENAN- 3 E
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C h a p t e r S e c t i o n S u b j e c t
PERIODIC WINTENAN- SE
INSPECTION 3 F IEROPLANE
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C h a p t e r S e c t i o n S u b j e c t
SEASONAL MAINTENAN- CE
UNSCHEDU- LED MAINTENAN- CE
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LET L 410 UVP-E20
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CONTENTS
1. INTRODUCTION ,SAFETY PRECAUTIONS ................. 2. AIRWORTHINESS LIMITATION SECTION - TIME
LIMITS/MAINTENANCE CHECKS ........................ 3. ROUTINE MAINTENANCE .............................. 4. PERIODIC MAINTENANCE ............................. 5. INSPECTION OF AEROPLANE .......................... 6. SEASONAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. UNSCHEDULED MAINTENANCE .......................... 8. STORAGE OF AEROPLANE ............................. 9. SUPPLEMENTS ......................................
9.1. Lubrication plan ........................... 9.2. List of overhaul works after which it is
necessary to carry out weighing of aircraft,
levelling of aircraft and service test flight
9.3. Survey of operation and lubrication materials
9.5. List of sealed items . . . . . . . . . . . . . . . . . . . . . . . . 9.6. List of adjustable items whose adjustment
during service is prohibited . . . . . . . . . . . . . . . . 9.7. Operation of instruments and' major components
Page
1-1
9.9. Statistics and elaboration of operation
defects influencing the operational safety 9.9-1
9.10.Special airframe inspections . . . . . . . . . . . . . . . . . 9.10-1
9.11.Repair of common defects without the
manufacturer's consent . . . . . . . . . . . . . . . . . . . . . . 9.11-1
9.12.Replacement of details . . . . . . . . . . . . . . . . . . . . . . 9.12-1
1 10. APPENDIXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
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LET L 410 UVP-E20
MAINTENANCE SCHEDULE
1 I N T R O D U C T I O N ,
S A F E T Y P R E C A U T I O N S
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MAINTENANCE S C H E D U L E
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LET L 410 UVP-E20
MAINTENANCE SCHEDULE
1.1. Introduction
1.1.1. General
1.1.1.1. The Maintenance Schedule (MS) determines the volume and periodicity of executing the maintenance on the L 410UVP-E20 aeroplane its systems and completing products.
1.1.1.2. The Maintenance Schedule determines the following types of
maintenance
- routine maintenance (see section 3) - periodic maintenance (see section 4) - inspection of airplane (see section 5) - seasonal maintenance (see section 6) - unscheduled inspections (see section 7) - maintenance during storage (see section 8)
1.1.2. General maintenance instructions
Upon finishing the adjustment of individual major
components and/or systems, opening of internal
compartments, dismantling of assemblies, aggregates and
major components and parts of the aircraft and engine
control system as well as other systems because of their
repair or exchange, it is necessary to make sure that they
are fully capable to operate at maximum values of their
parameters. Further it is necessary to ensure that the
position of the controlled element corresponds with the
position of the controlling element and with the
technical specifications. The check of the function of the
flight controls must be done from both pilot's seats.
1.1.2.2. In every case of the routine repair of parts removed from
the aircraft, of the replacement of faulty component,
repair of electrical wiring in the aircraft or its
equipment attachment and avionics, the following should be
done : - Aug 31/95 Page 1-3
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
a) a test shop check of the repaired component (check of
main technical parametres)
b) an onboard test of functional ability:
- of the repaired component fitted in place - of the whole system with repaired component fitted or the system whose wiring of equipment fixture has been
repaired
- of the systems interconnected with the system
containing the repaired component or the systems with
repairs to themselves.
1.1.2.3. When doing any type of technical servicing it is
necessary to remove every defect and failure which
developed during the flight or that was found during
maintenance. In cases where the removal of defect(s)
would demand too much work or special tools, jigs etc.,
it is necessary to subject the decision whether the
aircraft may fly to the Minimum equipment list.
1.1.2.4. The scheduled maintenance work of all types must be done
using the prescribed ground equipment, mechanical means,
marked tools and check and measuring instruments.
1.1.2.5. All work listed in this Maintenance Schedule, as well as
all supplementary work on aircraft must be done in
accordance with the work procedure charts of the
Maintenance Manual for the L 410 UVP-E20 aeroplane.
1.1.2.6. Maintenance must be done by engineering personnel
trained for the individual specializations, properly
acquainted with aircraft design, operational
regulations, safety regulations, this Maintenance
Schedule for the L 410 UVP-E20 aeroplane and the work
procedure charts for maintenance.
Page 1-4 Aug 31/95
LETECKE ZAVODY a.s. L 410 UVP-E2O
MAINTENANCE SCHEDULE
The personnel is thus allowed to service (maintain) the
L 410 UVP-E20 aircraft according to the valid regulations
and is fully responsible for the completeness and quality
of all maintenance work.
1.1.2.7. All types of maintenance and work done on the aircraft
must be recorded in the technical documentation in
accordance with the valid regulations for the civil
aviation.
1.1.2.8. The scheduled work on the airframe, engines, propellers
and instruments is related to the number of flight
hours, number of landings or operation time (monthslyears).
The number of flight hours (operation time) is the period
recorded from the beginning of the take off to the stop
aircraft on runway after landing including all reverse
regimes.
1.1.2.9. Keeping record of flights with full wing-tip tanks.When
a take-off with full wing-tip tanks took place a record
into the aircraft log book,chapter V1,Aircraft
operational records,into the Remarks column,must be
entered, reading : "WTT + 'I.
1.1.3. Numberinq scheme of the Maintenance Schedule and
Cross-reference to Other Publications
The items of the Maintenance Schedule are numbered
identically with the numbering of the Maintenance Manual
of the aircraft, engine or propeller. The reference
numbers of the Maintenance Schedule items comprise an
additional letter, differentiating the operations on the
object of maintenance. For each reference number in the
Maintenance Schedule there is a work procedure chart of
the same number in the Maintenance Manual of the aircraft;
this gives a quick access to the necessary maintenance
information.
Jan 12/02 Page 1-5
LETECKE ZAVODY a.s. L 410 UVP-E20
PJlAINTENANCE SCHEDULE
1.1.3.2. List of Documents Related with this maintenance Schedule
Abbreviation used
in the text:
a) Maintenance Manual (MM) of the
L 410 UVP-E20 aeroplane Aircraft MM
b) Maintenance Manual of the
M 601 E or M 601 E-21 engine
c) Maintenance Manual of the
V-510 propeller
d) Flight Manual for the
L 410 WP-E20 aeroplane
e) List of Manufacturing,
operating and Repairing
tolerances of the
L 410 UVP-E20 aeroplane
f) Structural Repair Manual of
the L 410 aeroplane
g) Illustrated parts catalogue
for L 410 WP-E20 aeroplane
h) Check Flight Methodics for the
L 410 WP-E20 aeroplane
Engine MM
Propeller MM
Page 1-6 Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
1.1.4. Revision
All revision in this Schedule are accomplished by the sheet
replacement. New sheets are sent to the holders (users) by
means of a Mandatory Bulletin.
New sheets are marked in the lower left corner with the date
of revision and the revised portion of the text is marked by
a vertical line on the left-hand side. When an unchanged
text is shifted to the next page this is not indicated. If
there is no amendment on the next sheet (except for the
shifting of text) the sheet is marked with a next date and
a letter "R".
Each revision is accompanied with a next llRecord of
revision^^^ (page 0-3). The holder ensures that date and
signature of person who entered the revision into given
volume is filled in.
In some cases a so-called "Record of Temporary revisions11 is
introduced, usually as an supplement to bulletin,
introducing the modification of aircraft, or for quicker
informing of the operator about a revision being prepared.
Record of Temporary revisions a temporary validity. Upon
issuing a new, revised sheet is the "Record of Temporary
revisions11 cancelled together with the original sheet. The
filing of listed in and cancelled "Record of Temporary
revision^^^ is made by the holder of the Maintenance Schedule
in the I1Record of Temporary revision^^^ (page 0-1).
1.1.5. Abbreviations
MM - Maintenance Manual - this abbre'viation is
uniform for all products despite differences of
wording in actual titles of their service
publications - see part. 1.1.3.2.
Jan 12/02 R Page 1-7
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
w/p - Work Procedure
LH - Left-Hand (Port)
RH - Right-Hand (Starboard)
Rud - Rudder
Elev - Elevator
MS - Maintenance Schedule
IELU - Integrated Electronic Limiter Unit
L/G - Landing Gear
n 4
- gas generator speed
n P
- propeller speed
V - indicated airspeed
Page 1-8 Jan 12/02 R
LETECKE ZAVODY a.s. L 410 W P - E 2 0
MAINTENANCE SCHEDULE
1.2. Safety precautions
1.2.1. Generally
1.2.1.1. Before doing checks and any work every safety precaution
must be carried out that prevents man-caused discharge of
static electricity, wilful switching-on of electric
devices, fire on board and human injury.
1.2.1.2. Ground electric power sources may be connected to the
aircraft on board electric system only with consent of
a specialist in charge of technical maintenance of given
aircraft. When connecting aircraft to the power supply,
during inspection and work it is mandatory to mark it
visibly with sign "AIRCRAFT ELECTRICITY ALIVEff.
1.2.1.3. During the refuelling must be all electric devices not
needed for the refuelling switched off and all assembly
and work stopped.
1.2.1.4. It is not permitted to disconnect cables and wiring,
remove covers from blocks change fuses and lamps on a live
equipment.
1.2.1.5. Before starting the engines make sure there are fire
extinguishers at hand, that wheels are chocked and that
there are no loose foreign objects in the vicinity of
aircraft.
Jan 12/02 R Page 1-9
LETECKE ZAVODY a - s . L 410 UVP-E20
MAINTENANCE SCHEDULE
1 . 2 . 1 . 6 . For t h e a c t u a l danger a r e a s around t h e a i r c r a f t w i t h
e n g i n e s runn ing see f o l l o w i n g drawing:
a ) w i t h e n g i n e s
a t i d l e power
b ) w i t h e n g i n e s
a t max. T/O power
1 . 2 . 1 . 7 . When i n s p e c t i n g t h e powerp lan t s a f t e r t h e i r shut t ing-down
it is n e c e s s a r y t o pay a t t e n t i o n t o h o t p a r t s of
e n g i n e ( s ) i n o r d e r t o p r e v e n t b u r n s caused by c o n t a c t w i t h
them.
1 . 2 . 1 . 8 . P o r t a b l e e l e c t r i c lamps, used d u r i n g t h e inspection of &h_e - - -
. . . . . . . . . . . . . . . . . . . . . .
a i r c r a f t , .must be w i t h o u t d e f e c t , must have p r o t e c t i v e
c a g e s and must n o t s p a r k when swi tched on; c o n n e c t i o n
c a b l e must have a r u b b e r o u t e r i n s u l a t i o n .
1 . 2 . 1 . 9 . A i r c r a f t max be s e r v i c e d t o wind speed of 1 5 m / s .
Page 1-10 J a n 1 2 / 0 2 R
LET L 410 W P - E 2 0
MAINTENANCE SCHEDULE
1.2.2. Safety principles for work on elevated surfaces
1.2.2.1. In order to prevent accidental slipping when working on
the wing, it is necessary to use footwear with soft-rubber
soles.
1.2.2.3. Work on elevated surfaces should be done wearing safety
harness (bel) with rope.
1.2.2.4. When wind blows more than 15 m/s, it is not permitted to
work on high ladders (higher than 1 m).
Safety principles for work on jacked-up aircraft
1.2.3.1. When jacking the aircraft up it is necessary to observe
the instructions given in Chapter 007 of the ~aintenance - - - - - -
Manual-of aircraft; - - - - - - - - - - - - - - - - - - - - - - -
1.2.3.2. When the aircraft is lifted-up on the jacks, it is
forbidden to start engines.
1.2.3.3. During lifting (lowering) of the aircraft no persons are
allowed under the aircraft, in the cockpit, passenger's
cabin or on the surface of the aircraft.
1.2.3.4. During the landing gear retraction test, when the aircraft
1.2.3.5. The aircraft may be lifted if the wind velocity does not
exceed 5 m/s.
1.2.3.6. Asymmetric lifting of the aircraft and asymmetric loading
of wing on jacked-up aircraft is not permitted.
Aug 31/95 Page 1-11
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Safety principles for work with electric equipment
1.2.4.1. When working on the aircraft it is forbidden to:
- leave the loose ends of wiring uninsulated, - leave open the panels of distribution devices and covers of connector boxes and devices which are under current.
1.2.5. Protection from Very Hiqh Frequencies
1.2.5.1. When checking equipment radiating very high frequencies it
is forbidden to get into the radiating field and make
refuelling the (also in the nearness of the airplane).
Safety principles for work with the B-3V synthetic oil
1.2.6.1. The B-3V oil is a toxic substance. When handling it
observe following rules:
- It is forbidden to eat, drink and smoke when handling
the B-3V oil. It is strictly prohibited to syphon oil
from one vessel to another by sucking it first into a
hose with one's mouth.
- All handling of oil must be done wearing special garment (protective overalls) and protective devices.
- Special working garment for handling the oil and the
protective devices should be stored in a reserved, set
aside locker (separated from normal personal apparel and
clothing).
If the special overalls or protective devices were
stained by the B-3V oil, it is necessary to replace the
overalls and thoroughly wash the protective devices with
warm water and soap.
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LET L 410 UVP-E20
MAINTENANCE SCHEDULE
- Handling the oil system is permitted only after the
pressure to the level of atmospheric pressure and oil
temperature drops below +60°c. When pouring the hot oil
the worker must be standing on the windward.
- Persons handling the B-3V oil are to be sent for regular medical examination once a year. The initial medical
- - - - -
examination must be done i-mftediately - after - the worker
has been appointed to handle the B-3V oil.
- If the skin of the aircraft has been stained with the
B-3V oil, it is to be wiped clean with a piece of cloth
soaked in white spirit (petrol). The cloth must be
replaced after use.
1.2.7. Safety principles for work with oxyqen system equipment
1.2.7.1. To handle the oxygen system are allowed the persons who - - - - - -
passed the course- and have practica-l hands-on experience
with handling the oxygen apparatus.
1.2.7.2. oil, grease, dirt and carbon black (soot) must not come in
contact with parts of the oxygen equipment.
1.2.7.3. Ensure that pressure bottles and other parts of equipment
are not subject to hard knocks and other damage.
1.2.7.4. Do not exceed permitted pressures when filling the system;
ensure that firefighting equipment is ready before - - - - - beginning -of _the- fillin-g, - - -
- - - - - - - - - - - - - - - - -
1.2.7.5. For handling the oxygen equipment use the chrome (or
nickel) plated tools. It is forbidden to use tools with
damaged plating.
- Aug 31/95 Page 1-13
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
1.2.8. Safety principles for use of flammable liquids
1.2.8.1. When cleaning the aircraft with petrol and when doing work
where flammable liquids must be used (cementing of the
rubber parts or cleaning), it is necessary to strictly
observe following precautions:
- - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - -
The aircraft must -be -grounded electrically.
It is prohibited to smoke or to handle open fire within
10 metres from the aircraft.
Ensure that firefighting equipment is at hand.
If the handling of flammable liquids takes place in a
hangar, sufficient ventilation must be ensured, the
aircraft must stand on its wheels and there must not be
any obstacle or foreign objects at the hangar doors,
that would pprevent a rapid pushing of the aircraft out
of the hangar should such a necessity occur.
On-board batteries and ground power source must be . . . . . . . . . . . . . . . . . . . . . disconnected.- - - - - - - - - - - - - - - - -
No other work on the aircraft may be done.
Electric vacuum-cleaners, electric drills etc. must not
be used simultaneously with cleaning.
Portable lamps used must be of the explosion-proof type.
Workers handling flammable liquids must wear antistatic
footwear and they must not wear overalls made of
synthetic fibres (danger of static electricity's
dischaarge).
No brushes and clothes made of synthetic fibres may be
used for cleaning.
The supply o f flamgab_le liquid f-or cleaning m u s t not - - - - - - - - - - - - - - -
exceed 1 litre. If greater amount of the liquid is
needed, then it must be stored in closed metal vessels,
placed at lkast 10 metres from the aircraft.
Aug 31/95
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
2
AIRWORTHINESS LIMITATION
- - - - - - - - - - - - SE<3TION - - - - TIME - - - - - - - ~
LIMITS/MAINTENANCE CHECKS
- Aug 31/95 Page 2-1
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
- Page 2 -2
Intentionally left blank
Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
2.1. General
The service life of the airframe parts and airframe systems except the parts noticed in item 2.2. is 20000 flight hours or 20000 flight cycles.
2.2. List of airframe parts and systems liable to compulsory
replacements
Table of service life of the airframe and its systems
Ser , No.
Name
Rear landing gear 1) spar
Left rear cable 2)
Right rear cable 2
Central right cable
2 1
Central left cable
2 1
Front cable 2 )
Marking
May 15/98
Service Life ( LB 1
13 000 flight cycles
6 200 hr
6 200 hr
6 200 hr
Page 2-3
LET L 410 WP-E20
PJLAINTENANCE SCHEDULE
Ser . No.
Name
Aileron fabric skin
Aileron fabric skin
Elevator fabric skin
Elevator fabric skin
Fabric skins of rudder
Notes to the table:
Marking Service Life
B 025 641 P ribs No. 3-14
B 025 641 L ribs No. 3-14
B 533 201 P ribs No. 3-17
B 533 201 L ribs No. 3-17
B 531 201 N ribs No. 3-17
Fabric skin service life on condition
1) Valid up to the Serial No. 1817. Service life of the rear landing gear spar is increased to 20 000 flight cycles after carrging out Mandatory Bulletin No. L 410 WP-E/019a.
From Serial No. 1818 the service life is 20 000 flight cycles.
2) Elevator trim tab control cables.
Note to the Fiq.2-1:
Wing service life vs. percentage of take-offs with WTT full of fuel is shown on Fig. 2-1. Landing with full wing tip tanks is permissible only in case of emergency. In the event of extreme utilization of the airplane for take-offs with full wing tip tanks the airplane manufacturer will set a corresponding wing service life and modify the system of inspections.
Page 2-4 Jul 15/99
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
- May 15/98 Page 2-5
LET L 410 UVP-E20
M-AINTENANCE SCHEDULE
I - ) Page 2-6
Intentionally left blank
Aug 31/95
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Aug 31/95 Page 3-1
LET L 410 WP-E2O
MAINTENANCE SCHEDULE
Intentionally left blank.
, Page 3-2
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
3.1. General
The routine maintenance consists of:
- routine maintenance A - done before every flight unless stated in the remark with the given operation otherwise
- during immediately f 01 lowing flights (training flights) perform when airplane is filled with fuel
- routine maintenance B - done after every landing and in case of handing over the airplane for parking
- during immediately following flights (training flights) perform when airplane is filled with fuel
- routine maintenance C - done once a day after concluding the flight day or before the first flight after an interval between flights from 1 to 15 days. This maintenance has validity 24 + 12 hours.
The routine maintenance type A and B is allowed to be done by a pilot on condition that he was trained for this work and approved by the manufacturer or else organization having the certification for L 410 WP-E20 aircraft type checks. In case any defect occurs during the routine maintenance A and B which is done by the pilot, then these repaired only by a trained engineer.
defects shall be
Reference No. Scheduled Maintenance Check
Remove the blocking devices blindings and mooring (i.e. covers aileron security clamp propeller rudder and elevator blockings covers of engine air-inlet,starting generator air inlet, exhausts, Pitot mazzle and ventilation of toilet; blind flanges for static pressure pickups, wheel chock, earthing equipment blocking strut of stearing column, tether ropes)
Note
At temperatures of ambient air below - 2 0 ' ~ (when warming-up of engines with air is as sumed) remove the sheets from engines only after heating-up the engines with warm air.
- May 15/98 Page 3-3
Reference No.
Page 3-4
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Carry out the exterior inspection
FIG 3-1 INSPECT THE EXTERIOR
Note
(A) - beginning of - - inspection ~
(1 1 Wingjsurface-, indications of fuel leakage, interceptors, rolling tabs; (2) Ailerons; (3) Intercep- tors, rolling tabs; (4) Wing flaps; (5) Engine covers, air ducts, propeller; (6) Main landing gear (working cylindre, lock, tyre, inflation of tyre as per compression; (7) Fuselage (skin, windows); (8) Tail surfaces; (9) Door of emergency exit; (10) Pilot's cockpit; (11) Nose landing gear (working cylinder, lock, tyre, inflation of tyre as per compressi- on,; (12) Door of emergency exit (in case there is the door on the airplane).
- - - - - - - - - - - - - - - - - - - - ~~~~
May 15/98
Reference No.
012.00.00.G (valid for airplanes with emergency door in pilot's cockpit and passenger cabin)
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Remove and store the airsteps. Close and lock the main door.
Remove the blocking bolts from the emergency exits and put them into the pocket on the right side of the pilot's cockpit.
Refuel the airplane according to the assumed flight. The engineer or the pilot are responsible for proper closing of the fuel tank in case they make A or B maintenance type.
Defecate the fuel tanks (15 minutes after refuelling)
Defecate the fuel cleaners
Clear away the snow, ice and impurities from the surface of the airplane, slots and season gaps, serials.
Note
After the embar- king of passengers.
Vith airplanes having rubber fuel tanks older than 5 year (from the date ~f manufacture) zarry out a =heck as per item 028.00.00.C
3nly before the first flight.
3nly in winter ;eason.
Jul 15/99 Page 3-5
Reference No.
Page 3-6
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Warm-up the cabin and the landing gear with hot air. Before starting the engines warm them up with hot air.
Install the storage battery.
Check-the voltage of every battery separately.
Connect the ground power unit.
Disconnect the ground power unit from the airplane.
Check the fixing of the load (baggage) and locking of spaces.
Check the pressure in the engine fire extinguishers.
~ ~
Check the pressure in the T 7607 (Dwg.No. B 594 280 N) extinguishers in the forward baggage compartment.
Note
4t low temperatu res below/about -20'~ on ground darm up the zabin always before take off. At temperatures about -20'~ uarm up cabin mly if need be. Preheating of engines with warm air perform at temperatures below -20'~ on the ground before take-off.
Only if removed.
After starting the engine.
Jan 12/02
Reference No.
J u l 15/99
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Check the function of pilotage system.
Check the air pressure in the pneumatic system. - - - - - - - - - - - - - - - - - - - - -
Note
Check or set the correct time on thelDo once in aircraft clock. With mechanical clock wind i~ up.
Check the operation of the BUR-1-2G flight recorder.
Switch on the flight recorder for preheating.
Check the tyre inflation from the flattening of tyres.
- - - - - - - - - - - - - - - - -
- - -
Mount the storage battery (e.g. 21 NiCd 450-1).
Check the laminated cover of the antenna of weather (for soiling and damage).
Check the operation of the weather radar.
- - - - - - - - - - - - - - - - - - - - -
Check with pressure gauges the pressure in oxygen cylinders of instruments.
2 days.
Carry out only if mounted on the aircraft.
O n l y if removed;
Only in case when it is mounted on the aircraft under pre- reguisite of flight when using the weather radar.
cary -out only in mounted on the aircraft.
Reference No.
076.10.00.1 (Engine MM, technologic process 76.10.00.f)
Page 3-8
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Close the screens of the side cover, space of the aircraft radio station on the right side of the front part of the fuselage and the screens of the side cover of the electric equipment on the left side of the front part of the fuselage.
Close the screens of the lower tilting cover of the engine nacelles.
Readjust the levers of the flap control behind the oil cooler in the engine nacelles.
Check whether the seal of setting maximum contingency rating has not been damaged.
Adjust the switches of the automa- tic feathering on engines.
Note
Carry out at a temperature of the ambient tem- perature below +20°c. Open the) screens with the rise of tempera- ture above +20°c
Carry out at a temperature drop of the ambient air below -25O~. Open the screens with the tempe- rature rise above -25O~.
Carry out at a temperature drop of the ambient air below +30°c and with the temperature rise above +30°c.
Carry out at temperature of ambient air below +20°c and with the tempe- rature rise above +20°c.
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Mount the screens on to the 443 512 506 705 oil coolers in the engine nacelles.
Disconnect the 4 4 3 512 506 705 oil coolers in the engine nacelles.
Discharge the rest of water from the system of water injection and make the inner preservation of the water injection system.
Fill the tank of the water injection system with water.
Note
Carry out at a temperature d r o ~ of ambient air below -5Oc. Dismantle with the temperature rise above ~ O C .
Carry out at a temperature d r o ~ of the ambient air below -40'~ Connect the oil coolers with a temperature rise above -25O~.
Carry out at a temperature d r o ~ of the ambient air below +loOc. Clear away the preservation of the water in jec- tion system witk the temperature rise above +20°c and check the operation of the system.
Carry out according to t h ~ requirement of the screw. Discharge water from the system at a temperature of the ambient air below +loOc.
Page 3-9
LET L 410 W P - E 2 0
MZLINTENANCE SCHEDULE
MAINTENANCE B
Reference No.
1 Page 3-10
Scheduled Maintenance Check
Set the stops under the aircraft wheels.
- ~ - ~ ~ ~
Set the cover on -the Pitot tube and the sensors of the static pressure, the inlet openings to engines and generators and if need be also the covers on to the windshield and windows of the pilot's cockpit.
Secure the aircraft control by means of a blocking strut.
. Adjust the following devices on the aircraft : - blocking of propeller - blocking of ailerons - blocking of elevator - blocking of rudder - covers of air inlet to engines and generator
- covers of exhausts - covers on Pitot tube and blindings of sensors of static pressure
- cover of air inlet to the toilet.
?round the airpLane wi-th the- - ~ ~ ~ ~
grounding cable. J
Note
2arry out only in case of showing, raining, dust storm and in Zase if the sircraf t stoppage till the next flight isassumed to De more than 2 hours.
Carry out only in case when the stoppage time of the
' airplane till the next take-of f will exceed 2 hours.
Aug 31/95
Reference No.
May 15/98
012.00.00.G (valid for aircraft with emer- gency door i-n the - - - -
cockpit and the passenger compart- ment )
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Anchor the aircraft - only in case that a wind having wind gusts exceeding 20 m/s (72 km/h) is anticipated.
Take over the aeroplane from the crew.
Take over the report on the technical state of the aircraft from the crew. Acquaint yourselves with the records in the deck diary concerning the defects of the aircraft sy-stems during - - - - - the flight.
- - - - - - - - -
Inspect the aircraft (among others cockpit windows, condition of passenger compartment and pilot's cockpit, condition of baggage compartment, toilet).
Open the entry door. Set the airsteps.
Inspect the control elements in the passenger cabin and pilot's cockpit. After concluding the works on the airplane remove the airsteps and put them inside the airplane. Close and lock the entry door,
- - - - - - - - -
Note
'arry out only in case if the stoppage time of 3ircraft till the next take-of f is mticipated to zxceed -2 - hour s . -
3nly in case $hen the stoppage time 2f the aircraft till the next flight will sxceed 2 hours.
Do after the stop of engines.
Carry out only in case when the stoppage time on the aircraft till the next flight will exceed - 2 hours
Page 3-11
Reference No.
D12.00.00. J (in effect for air- =raft with lmergency fioor in zockpit )
Page 3-12
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check Note
Inspect the control elements in the pilot's cockpit: - control lever of landing gear - levels FUEL - parking brake
After concluding the works on the 3ircraft remove the airsteps and put it inside the aircraft. Close and lock the entry door. Close the door 2f the emergency exit and secure it inside by turning the bar. Check the seal of the emergency exit.
Zheck the disconnection of switches 2nd circuit breakers in the pilot's zockpit.
Remove the deck batteries in order to store them.
Carry out only in case when the stoppage time of the aircraft till the next flight will exceed 2 hours.
Carry out only in case of the aircraft stoppage for more than 12 hours and a tem- perature of ambient air below -25O~.
Aug 31/98
LET L 410 UVP-E20
M.AINTENANCE SCHEDULE
I
Scheduled Maintenance Check Reference
No.
025.00.00.B
026.20.00.C
029.12.00.A
032.40.01.G
033.50.03.A
1035.30.02.8
Check the completeness of emergency means (life-jacket, axe, first-aid kit, safety rafts, emergency supplies).
J u l 15/99
Inspect the sealing of guards of the push-button EXTINGUISHING.
Inspect the hand valves for the emergency control of the landing gear and the LUN 6577-8 wing flaps. Check their sealing.
Check the detector of the brake temperature of the main landing gear.
Remove the storage batteries from the aircraft (e.g. 21 NiCd 450-1) in order to recharge them in the charging station.
Clean and disinfect the moulds of the oxygen masks.
Note
Do only in case that the stoppage of the airplane till the next flight uill exceed 2 hours.
Zarry out in zase of the stoppage for more than 10 days.
Jary out as 3er crew s requirement.
Page 3-13
LETECKE ZAVODY a.s. L 4 1 0 WP-E20
MAINTENANCE S C H E D U L E
MAINTENANCE C
Reference No.
Page 3-14
Scheduled Maintenance Check
Inspect the inlet opening of air conditioning.
Check the operation of transducers 36 V.
Check the operation of both transducers 115 V.
Check the pilot's seats and the seats for passengers.
Inspect the net of polyamide.
Check whether there is no indication of fuel leakage on the lower wing surface.
Inspect the exit of vent tubes of the fuel tank.
Check visually leakege of the 443 958 219 001 through-flow heater of fuel.
Inspect the piping accessible without dismantling the covers as well as the hoses and instruments of the hydraulic system: - on the engine up to the fire wall - in the bay of the front landing gear
- in the nacelles of the main landing gear.
Note
Only with aircraft of carge version.
Jan 12/02
Reference No.
Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Check the amount of hydraulic liquid in the main tank.
Check whether there is enough hydraulic liquid in the emergency hydraulic tank.
Inspect the static indicator SI(7).
Check the operation of the heating of the SI (7) static indicator.
Check the compression of shock absorbers of the leg of the main landing gear.
Inspect the shock absorbers of the landing gear, clean the piston rods of absorbers.
Inspect at accessible places the main landing gear, working cylinders, locks and the guides of mechanical indicators of the main landing gear.
Check the compression of the leg absorber of the front landing gear.
Inspect the absorber of the leg of the front landing gear. Clean the piston rod of the absorber.
Inspect the cylinder of the servo control of the front landing gear.
Note
Page 3-15
Reference No.
061.10.00.C (MM - pro- peller)
1 Page 3-16
LET L 410 UVP-E2O
M.AINTENANCE SCHEDULE
Scheduled Maintenance Check
Inspect at accessible places the front landing gear, the working cylinder and the mechanical lock.
Check the wear of lining and the working clearances. Inspect the brake cylinders and their piping.
Check whether all bulbs of signa- lling are on.
Inspect the check their
position lights operation.
and
Inspect the flash beacons and check their operation.
Check the sensors of the system of the overall and static pressure.
Check the comparison of values of the barometric and coding altimeter with the barometric pressure in the parking area of the aircraft.
Check the operation of signalling of the stalling. Inspect the terminal switch.
Check the position of the shifting carrier ring.
Note
Aug 31/95
Reference No.
361.10.00.G c m - - - - propeller)
373.11.00.A (MM - ongine 73.11.00.a)
079.20.00.B T M M - - - - ~
engine 79.20.00.a)
079.30.00.B (engine MM W/P 79.50.00.d)
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
--
Scheduled Maintenance Check
Inspect the transfer rings.
Zlean and treat the propeller nrface.- - - -
- - - - - - - - - -
Inspect the agregates and pipings ~f the fuel system below the engine zowlings and the inlet channel.
:heck whether the seal of the maximum contingency rating ~f engine has not been damaged.
Inspect the instruments and pipings 3f - the oil syst-em. - - - - - - - - - -
Check the oil amount in the tank by means of the signalling of the minimum oil amount.
Inspect the 8 LUN 7377-8 valves in the left side of engine nacelles.
Note
Jan 12/02 Page 3-17
Reference No.
Page 3-18
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Scheduled Maintenance Check
Intentionally left blank.
Note
Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
P E R I O D I C
Aug 31/95
4 M A I N T E N A N C E
Page 4-1
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Intentionally left blank.
) Page 4-2 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
4.1. General
4.1.1. The periodic maintenance consists of:
- line check 1 - is done periodically after every 10 + 1 days.
- check 2 - is done after every 300 + 30 flight hours.
- check 3 - is done after every 1 200 + 30 flight hours.
- check 4 - is done after every 2 400 + 30 flight hours.
Remark: - With some systems it is necessary to carry out the check also depending on the operation time (months) or on the number of landings. The time periodicity, or the number of landings is given in the column Note of the specified operation. The time works and works according to the number of landings may be done with the next lower periodical check. The checks according to periodicity have the to- lerance + 15 days and for the checks done as per number of landings the tolerance is + 50 landings except for line check 1.
- The tolerances allow to delay check carrying out in the necessary cases but it does not allow adding tolerance ints interwal between checks.
- In case that another periodicity is given with the respective periodical check than stated with checks 1, 2, 3, 4, then a multiple of this check is given with the respective check defined always in the lower part of the page in a footnote (e.g. 2+ ........, to be done with every second check 2).
- During the checks after engine overhaul perform first check 2 after 300 + 100 flight hours.
Page 4 - 3
LET L 410 UVP-E20
Mi%INTENANCE SCHEDULE
4.1.2. The execution of maintenance works due to the number of
landings or calendar time does not relieve of the duty of
the execution of works according to flight hours.
4.1.3. Lubrication is done during overhauling of all types in
accdordance with the lubrication chart see supplement 9.1.
Cycle of periodical maintenance
The cycle of the periodical maintenance is counted:
- from the putting into operation of a new aircraft - from the last inspection of the aircraft.
- Page 4-4 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
AIR CONDITIONING
Inspect the heating control flaps and their controls in the pilot's cockpit and passenger cabin. Check them for proper posi- tion.
Inspect the compensators in the air distribution ducting between the frames No. 8-9, 3-4 and 11-12. Replace the defective com- pensators.
Check the tightness of non- return valves and closing flap in the front cabin, passenger cabin, between the frames No. 2-3, wing, engine nacelles.
Check the function of the heating control flap on the left control panel. Lubricate the pull-ro#ds of the flap control. -
Carry out maintenance of the R 134 A Air conditioning system according to work procedures mentioned in of the L-410 UVP-E20 Maintenance Manual.
Chapter FI
Frequency Note
Only in case mounted in the aircraft.
Jul 15/99 Page 4-5
Reference No.
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
- --- - - -
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Page 4-6
Frequency Note
Aug 31/95
Reference No.
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
- -- - - - -
Name of Part/Unit Scheduled Maintenance Check
AUTO FLIGHT
Remove the KS 272 A elevator trim tab servo,the KSA 372 X servos of aileron,elevator and rudder f r ~ m the aircraft and- check:
- evidence of corrosion or impurities in the area of the engage solenoid
- adjustment of the
- rope drive
After testing mount into the aircraft.
torque.
it again
Frequency Note
After 12 months at least. Only in - -
case mounted in the aircraft.
Chapter b1 Jan 12/02 Page 4-7
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Reference No.
Name of Part/Unit Scheduled Maintenance Check
Page 4-8
- - - - - - - - - . - - ~~~-~~
Intentionally left blank.
Frequency Note
Chapter
Aug 31/95
Reference No.
023.60.00.A
023.60.00.B
023.60.00.C
023.70.00.A
I
Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
ZOMMUNICATIONS
Zheck the function of the shock absorbers of the rear panel in the pilot's cockpit.
Check the antenna (e.g. 5 QK 405 16)
Check the correct connection of the cable to the aerials VSW (e.g. 5 QK 405 16).
Check the static discharger.
Remove the static dischargers, clean their seating areas and mount them again back.
Examine all by-passes of moving parts. Check the realiability of their fixations.
Replace battery in the DK 120 Underwater acoustic beacon according to instruction on the label.
Frequency Note
After 12 months at least. Only in case mounted in the aircraft.
Chapter FI Page 4-9
Reference No.
LET L 410 WP-E20
MJLINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Chapter F] Page 4-10 Aug 31/95
Reference No.
LETECKE ZAVODY a.s. L 410 UVP-E20
M-AINTENANCE S C H E D U L E
- - - - - - - - - - - -
Name of Part/Unit Scheduled Maintenance Check
ELECTRICAL POWER
Check the electric equipment in the power centre in the cabin ceiling between the 7th and 9th frame (accessible - -
after removing the lining) and in the front part of the fuselage between the 1st and 2 nd frame to the left and between the 2nd and 4 th frame to the right.
Examine (after disconnecting) the following connections:
- v1, v2, v3, v4, v9, v10, V19, V20, V25, V26, (in the transition fuselage-wing)
- V5, V6, V7, V8, V11, V12, -V15, -V1-6, V225, V226, ( in - the transition wing-engine)
- V33, V34, V227, V228, (in the transition engine-tank)
- V14, V212, transition
(on 26th
Check the condition of nega- tive terminals:
- V94, V93 (condition of the negative poLe of -the gene-- rator with the frame on the right and left engine)
Frequency Note
3t latest after 48 months
Chapter 10241 Jan 12/02 Page 4-11
Reference No.
Page 4-12
LETECKE ZAVODY a.s. L 410 UVP-E20
M2XINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
- V211-1,2 (connection of the negative pole of the desk battery with the frame under the floor of the right pilot)
- V73-1 (connection of the negative pole of the socket of the outer source with the frame).
Examine the parts of the electric equipment behind the fire walls of the engine nacelles (between the 8th and the 10th rib).
Inspect the cable system (connection plug-socket) without dismantling and the terminal boxes in the fuselage.
Check the operation of all circuit breakers not operating as switches in spaces between the 1st and 2nd frame, the 7th and 9th and after the 21st frame.
Check the automatic switching of inverters 36 V.
Check the automatic switching of inverters 115 V.
Checkt the fixing and measure the insulation resistances of the LUN 2102 or the LUN 2102.01 alternator.
Chapter 10241
Frequency Note
Jan 12/02
Reference No.
024.30.01.B (MM - Engine w/p 80.11.00.a)
024.30.01.C (Engine MM U/P 50.11.00.a)
Aug 31/98
LET L 410 UVP-E20
PJlAINTENANCE S C H E D U L E
N a m e of Part/Unit Scheduled Maintenance Check
Remove t h e LUN 2102 o r t h e LUN 2102.01 a l t e r n a t o r and hand it over t o t h e test room. After t e s t i n g mount it again on t h e a i r c r a f t .
Check t h e a l t e r n a t o r a t of t h e test room f o r :
- s e c u r i t y of attachment of t h e t o r s i o n ba r
- clean and inspec t t h e s t a t o r and r o t o r .
Inspect t h e a l t e r n a t o r .
Remove t h e LUN 2132.02-8 s t a r t e r -genera to r and hand over t o test room. Af ter t e s t i n g mount it again i n a i r c r a f t .
it
t h e
Check t h e brush length and t h e commutator on t h e LUN 2132.02-8 starter genera- t o r a t t h e test room.
Remove t h e LUN 2167.03-8 voltage regu la to r from t h e 3 i r c r a f t and hand it over t o the test room. Af ter t e s t i n g nount it again on t h e 3 i rcraf t .
-
Frequency Note
Page 4-13
Reference No.
LETECKE ZAVODY a.s. L 410 WP-E2O
M2kINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Chapter [=I Page 4-14
Check the function of the LUN 2167.03-8 voltage regula- tor at the test room. Inspect the regulator.
Inspect the contacts of the DMR-400 DSP differential relay.
Remove the storage batteries from the aircraft and give them to the recharging workshop. After testing and recharging mount them again on the airplane.
Recharge and inspect the batteries.
Examine the storage place for batteries between the 1st and 2nd partition.
Preserve the space of storage batteries.
Remove the LUN 2743.03-8 the LUN 2743.04-8 and hand it over to the test room. After testing mount it again in the aircraft.
Frequency Note
After 3 months at the latest.
After 3 months at
Jan 12/02
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
With the volt-ammeter check at the test room: - basic inaccuracies - insulation resistance
Examine the SA 440/8 shunt.
Connect the external power source.
Disconnect the outer power source.
Inspect the socket of the SRAP 500 external power source.
Check the operation of the switch with the V 016 electromagnetic tripping.
Chapter /024/ Aug 31/98
Frequency Note
Do after finishing the inspection.
Page 4-15
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Intentionally left blank.
Reference No.
Frequency Name of Part/Unit Scheduled Maintenance Check Note
Chapter 1 0 2 4 1
Page 4-16 Aug 3 1 / 9 5
Reference No.
LETECKE ZAVODY ass. L 410 UVP-E20
-1NTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
EQUIPMENT, FURNISHINGS
Check the reliability of fixing of screw and passenger seats to the floor of the aircraft.
Inspect the navigator's table and its tilting mechanism.
Inspect the box with spare fuses.
Remove the DV-3 fan from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
Check the length of brushes of the DV-3 fan at the test room. Inspect the commutator.
Examine the frame door between the crew and passengers. Check its closing.
Inspect the structure of the nose and rear luggage compartment.
Frequency Note
Only on aircraft where the partion is installed.
Chapter 10251 Jan 12/02 Page 4-17
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Inspect the fastening belts.
Inspect the cargo-related equipment.
Examine the emergency equipment (first-aid box).
Check the operation of push-buttons for calling the crew.
Replace battery in the ELT 10 or POINTER 3000 Emergency Locator Transmitter according to instructions on the label and in the following cases:
- after the transmitter has been used in an emergency situation
- after the transmitter has been operated for more one cumulative hour.
2heck the operation of ELT 10 3r POINTER 3000 Emergency Locator Transmitter.
Frequency
Only with airplanes of cargo type
The exami- nation of the SP12 rescure rafts and the NAZ-7 emergency packet is done as per a separate documenta- tion.
Only in case mounted in the aircraft.
After 12 months: at least. Only in case mounted in the aircraft.
Chapter F1 Page 4-18 Aug 31/98
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
FIRE PROTECTION
Check the correct operation of the fire signalling system of engines and the front baggage compartment by means of test push-buttons.
Remove the block of the BI-2A, power unit, 2nd series and hand it over to the test room. After testing mount it again in the aircraft.
Test the sensibility with the BI-2A power unit, 2nd series at the test room. Examine the power unit.
Remove the fire detectors (e.g. DPS) and hand them over to the test room. After testing mount them again in the aircraft.
Check the insulation resistance with fire detectors (e.g. DPS) on the test room. Examine the plugs of the detectors.
Inspect the DS-3 M2 smoke signalling.
Frequency -
Note
:heck also in the rear 3aggage zompartment in case :hat there is signalling installed.
Chapter FI Aug 31/95 Page 4-19
Reference No.
LETECKE ZAVODY a.s. L 410 UVP-E20
IXLAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Exhange the DS-3 M2 signalling bulb. Check the operation of the smoke signalling by means of test push-buttons.
Replace the PP 3 pyrocartrid- ges .
Blow through the extinguisher piping with pressure air.
Check the pressure in the PPL (8) fire extinguishers of the engine.
Check the electric circuit of pyrocartidges.
Check the pressure in the FH 15-364 cabin fire extinguishers.
Inspect the cabin fire extinguishers FH 15-364 and check their weight.
Examine the thermal fuse.
Check the pressure in the L 410 6740-40 fire extinguisher in the rear baggage compartment.
Chapter bl Page 4-20
- --
Frequency Note
After 12 months at least.
After 12 months at least.
After 12 months at least.
3nly in ca- se if moun- ted on the aircraft.
Jan 12/02
Reference No.
LETECKE ZAVODY a . s . L 410 UVP-E2O
MAINTENANCE S C H E D U L E
Name of P a r t / U n i t Scheduled Maintenance Check
?LIGHT CONTROLS
Cnspect t h e by-passes on a l l noving p a r t s of t h e c o n t r o l s .
:heck a l l i n d i v i d u a l c o n t r o l z e n t r e s .
Inspec t t h e c o n t r o l c a b l e s a t 111 a c c e s s i b l e p l a c e s .
Ydjust t h e t e n s i o n of c a b l e s f o r t h e c o n t r o l of a i r e l o n s .
I n s p e c t t h e components made 3f e l e c t r o n f o r c o r r o s i o n .
2 + . ... do w i t h e v e r y second check 2
Chap te r 10271
Frequency Note
rhe a d j u s t - nent of t h e ;ens ion of :ables : o n t r o l l i n g the r u d d e r m d t r i m t a b s of t h e = l e v a t o r is lone w i t h the seasona l na in tenance - see ? a r t 6 .
4f ter 2 4 nonths a t l e a s t .
J a n 12/02 Page 4 - 2 1
Reference No.
Page 4-22
LETECKE ZAVODY a . s . L 410 WP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Inspect the individual pull-rods and levers of the controls.
Inspect the threaded ends of the control pull-rods.
Check whether the lock nuts are not loosened on the pull-rods of the control of the trim tabs of the elevator, rudder and ailerons.
Inspect the dust arresters at the individual control parts.
Inspect rudder control cables at place frame N0.7 and No.26 with partial dismantling of control cables.
Check the clearance in the control of ailerons and trim tabs of ailerons.
Verify the operation of the electric control of trim tabs of ailerons.
Check the clearance in the control of the rudder and trim tabs of the rudder.
Chapter 10271
Frequency Note
After 24 months st least.
Jan 12/02
a
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Id
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0 E
c, 4
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O
k
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,
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OC
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Uc
,
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the operation of push buttons of pushing the spoilers out.
Check the operation of the tabs of automatic rolling under the operation of engines.
Chapter (0271
Frequency Note
Page 4-24
LET L 410 UVP-E20
PJIAINTENANCE SCHEDULE
N a m e of Par t /Uni t Scheduled Maintenance Check
FUEL
In spec t whether t h e r e is no i n d i c a t i o n of f u e l leakage on the lower wing su r f ace i n the engine space before t h e Eire wa l l s .
"eck whether t h e r e is no f u e l leakage from t h e d r a i n tubes and d r a i n ho les of f u e l tanks .
Zheck t h e passage of t h e f u e l p ip ing .
In spec t t h e p ip ing and hoses ~f t h e f u e l system.
In spec t t h e rubber s l e e v e s u i t h f i l l i n g branches and t h e s c reens i n t h e f i l l i n g branches of f u e l t anks .
Chapter /0281
Frequency Note
Carry o u t w i t h a i r p l a n e s having rubber f u e l t anks o l d e r than 5 y e a r s .
A f t e r 4 8 months a t l e a s t . Hoses ope- r a t e d f o r more than 5 y e a r s must be v i s u a l l y i n spec t ed a f t e r e w y 300 f l i g h t - hours .
A f t e r 1 2 months a t l e a s t .
A u g 31/95 Page 4-25
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check wing tip tanks condition.
When replacing the brushes remove the 410 PCR-1V (8), ECN-40 or LUN 6283-8 pump. After replacing the brushes it again on the aircraft and check the tightness.
Check the tightness of the pump in the aircraft. Check or replace the brushes, if need be. Inspect the commutator.
Replace the LUN 7691.01-8 inserts of fuel cleaners with new ones.
Check the operation of the 443 958 219 001 through-flow heater of fuel.
Check the adjustment of fuel gauges to the zero value, adjustment of signalling of the minimum fuel amount and with aircraft with tip tanks, check the operation of the level indicator.
2+ ... do with every second check 2.
Chapter /0281
Frequency Note
Only in case if mounted on the aircraft.
Do it after checking the fuel gauge as per item 028.40.01.B
May 15/98 Page 4-26
Reference No.
LET L 410 WP-E2O
MAINTENANCE S C H E D U L E
Name of Part/Unit Scheduled Maintenance Check
Remove the LUN 1634.01-8 fuel gauge from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
Check the basic inaccuracies on the indicator of the LUN 1634.01-8 fuel gauge at the test room. Inspect the indicator.
Remove the indicator of the fuel gauge of the LUN 1674-8 end tank from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
When in the test room, check the basic inaccuracies on the indicator of LUN 1674-8 the fuel gauge. Inspect the indicator of the fuel gauge.
Remove the transmitter of the LUN 1649-8 fuel gauge of the end tank from the aircraft and hand it over to the test room. After testing mount it again in the aircraft .
At the test room check on the transmitter of the LUN 1649-8 fuel gauge: - basic inaccuracies - insulating resistance. Examine the transmitter of the fuel gauge.
Frequency Note
3nly with 2ircraf t uith end tanks.
Chapter /ozsl May 15/98 Page 4-27
Reference No.
LET L 410 W P - E 2 0
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
- - - --
Intentionally left blank.
Chapter /0281
Frequency Note
Page 4 -28 May 15/98 R
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
HYDRAULIC POWER
Inspect the instruments, pipings and hoses of the hydraulic system. Check whether they are properly fixed after removing the following covers:
rear lower cover of the engine nacelle
upper transition cover fuselage-wing
side lining at the left side of the fuselage between the 8th and 14th frame
upper and front cover of the landing gear nacelle
covers at the side walls of the control panel
deck plates.
Inspect the instruments of the hydraulic system (accessible after the removal of covers of the working cylinders of the interceptor and rolling tabs).
Aug 31/95
Frequency Note
Hoses ope- rated for more than 5 years must be visually inspected 3fter every 300 flight hours.
Page 4-29
Reference No.
I Page 4-30
LETECXE ZAVODY a.s . L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the purity of the hydraulic liquid.
NOTE: In replacing AMG 10 hydraulic liquid with the AEROSHELL 41 or in
their mixing check the hydra- ulic cleaner inserts after 30,60,90 and 120 flight hours and watch the sediment on the cleaner inserts. In case black sediment appears on the cleaner inserts,clean the hydraulic liquid and replace the hydraulic cleaner inserts.
Inspect the hydraulic piping and hoses.
Deslime the main and emergency hydraulic tanks.
Remove the inserts of the LUN 7614.01-8 and 03-8 hydraulic purifiers and check them for purity. After mount the inserts again in the air- craft or replace inserts by new ones.
Check the inserts of the LUN 7614.01-8 and 03-8 hydraulic purifiers.
2+ .... do with every second check 2.
Chapter 10281
Frequency Note
see 029.00.00.D
To be done before the check of purity of the hydrau- lic liquid ( item 029.00.00. .I?).
Jan 12/02
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the pressure of techni- cal nitrogen in the LUN 6953.02-8 and 05-8 hydraulic accumulators (main and braking system).
Remove the inserts of the LUN 7313.02-8 hydraulic cleaners and hand them over for cleaning. After cleaning mount them again in the aircraft.
Clean the inserts of the LUN 7613.02-8 hydraulic cleaners.
Check the operation of the emergency lowering of the landing gear, wing flaps and the operation of the emergency braking. Check the operation of the signalling "Lower the landing gearm. Check the correct operation of the mechanical indicators of the landing gear. Check the setting of the LUN 3159.01-7 limit switch.
Check the tightness of the overpressure system of the hydraulic system.
Chapter 10291
Frequency Note
May 15/98 Page 4-31
Reference No.
LETECKE ZAVODY a.s. L 410 UVP-E20
P.2AINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Inspect the colouring of the silicagel filling of the 3976 0872 air drier.
Replace the insert of the 723 900-4(8) cleaner.
Check the exit pressure of the LUN 6651.01-8 pressure reducing valve.
Check the operation of the LUN 7548-8 safety valve on the airplane.
Remove the thermal switches LUN 3192-8 from the aircraft and hand them over to the test room. After testing mount it again in the aircraft.
At the test room check on the LUN 3192-8 thermal switch: - permissible inaccuracies - insulation resistance. Inspect the thermal pick-up of the hydraulic system.
Remove the MA4 pressure gauge for testing it in the test room. After testing mount it again in the aircraft.
At the test room check on the pressure gauge the basic inaccuracies. Inspect the pressure gauge.
2+...do with every second check 1.
Frequency Note
Chapter FI 1 Page 4-32 Jan 12/02
LET L 410 WP-E20
PJlAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
ICE AND RAIN PROTECTION
Inspect the surface of de-icers .
Check the operation of the control box of de-icing.
Check the operation of the de-icing system of wings and tail surfaces.
Wash-up the rubber de-icers of wings and tail surfaces. Inspect the surface of de-icers. Renew the paint.
Check the condition of the compensator in the air distribution.
Inspect the condensate pit of the de-icing system of the airframe.
Check the free motion of the de-icing valve in the air inlet to the engine.
Check the opening of the by-pass flap in the lower tilting cover under the oil cooler.
Frequency Note
After 6 months at least.
3nly in case when it is mounted on the aircraft.
Aug 31/95 Page 4 - 3 3
Reference No.
LET L 410 UVP-E2O
L v l A I N T E N A N C E SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the lenght of the strut in the retracted position on the MP 100 MT electro-mechani- cal strut. Inspect the strut.
Check the adjustment of 1-imit switches in- thg SKP 1( 8-) box of limit switches.
Remove the UK-1 or the UK-l(8) closing cock from the airplane and hand it over to the test room. After testing mount it again in the aircraft.
At the test room carry out on the UK-1 or the UK-l(8) closing cock: - cleaning - greasing of sliding surf aces. - - -
Inspect the stop vilve.
Check the operation of heating the Pitot tubes, sensors of the static pressure and sensor of the ram pressure.
Check the operation of the electric heating of the wind screen.
Check the correct operation of the TER-1M thermoregulators
Check whether the wiper is properly fixed and adjusted. If need be replace the rubber wiper.
Page 4-34
Frequency Note
After 12 months at least.
Aug 31/95
Reference No.
LET L 410 WP-E20
MiAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Chapter /030/ May 15/98
Inspect the protecting coat of wiper levers.
Check the operation of wipers.- - - - - - - - - -
Check the operation of de-icing of propellers in rest of engines.
Examine the LUN 7850 collector and its brushes.
Check the wear of carbon brushes of the LUN 7850 collector.
Examine the LUN- 1'771.3-8 and LUN 1771.4-8 signalling - - -
device of ice accre4tion. -
Check the operation of the signalling of ice amredtion.
Frequency Note
After 6 months 3t least.
Page 4-35
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Frequency Scheduled ~aintenance Check Note
Chapter 1030 1 Page 4 - 3 6 May 1 5 / 9 8 R
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
INSTRUMENTATION
Check the operation of the following electric instruments: - fuel gauge - temperature indicators in the cabin
- temperature indicators between the turbines
- landing gear indicators - flap indicators - LUN 1538.01-8 triplex indicator
- pressure gauges of the hydraulic system.
Inspect the instrument board, dampers of instrument board, hoses of the total and static pressure.
- - - - - - - - - - - -
Inspect the instruments onthe board, control panels and on the ceiling panel.
Inspect the blocks and the transmitters of the BUR-1-2G flight recorder and their fixing.
Check the operation of the flight recorder by means of the UVOP-1 device.
Frequency Note
Only in case mounted in the aircraft.
Chapter 1 031 1 Aug 31/95 Page 4 - 3 7
Reference No.
LET L 410 UVP-E20
MJ%INTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the operation of the flight recorder on the air- craft when switching-on by the limit switch on the landing gear leg with the starting of the engine.
Calibrate and record all ana- logous parameters and single commands and their decoding of the board recorder.
Check the dampers of the ZBN 1-1 recorder.
Check the driving belt of the feed mechanism of the MLP-23 tape of the ZBN 1-1 recorder.
Frequency Note
Only in case when mounted in the aircraft.
Only in case when mounted in the aircraft. After 12 months at least.
case when mounted in the aircraft.
Chapter F] Page 4-38 Aug 31/98
Reference No.
LETECKE ZAVODY a.s. L 410 WP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
3emove the 0,4 K LUN 1469.11-8 ?ressure switch from the 2ircraft and hand it over to the test room.After testing nount it again in the 3ircraf t.
Zheck on the 0,4 K LUN 1469.11-8 pressure switch 3t the test room: - operation (adjustment) - tightness.
Replace battery in the DK 120 Underwater acoustic beacon 3ccording to instruction on the label.
Chapter 10311
Frequency .... Only in case when mounted in the aircraft. After 12 months at least.
After 12 months at least. Only in case mounted in the aircraft .
Jan 12/02 Page 4-39
Reference No.
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Page 4-40 Aug 31/95
Reference No.
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
LANDING GEAR
Inspect the main and the nose landing gear. Examine the conductors on the landing gear legs and in the space of the main and nose landing gear.
Inspect at accessible places the conductors from limit switches on the locks of the main landing gear and on the cylinders of the main landing gear. Inspect all by-passes within the space of the main landing gear.
Inspect the legs of the main landing gear.
Inspect the split pins on the connecting bolts of the main landing gear leg.
............................. 2 + . . . do with every second
check 2.
Chapter 10321
Frequency Note
Yfter 300 landings at least.
I landings at t least.
Aug 31/95 Page 4-41
Reference No.
LET L 410 W P - E 2 0
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Examine the smooth surface of the piston rod and the sealing of the main landing gear leg.
Examine the blindings (of 1 inen and metil ) of the main landing gear leg.
Check the pressure and the springing values of dampers of the main landing gear leg.
Preserve the surface of the lower hinged fixing at the main landing gear leg.
Check the clearance in the seat of the main landing gear.
- - - - - - - - - - - - -
2heck the tightening of the bushings of the mechanical indicators of the main landing gear leg.
------------------------------ 2+ . . . do with every second
check 2.
Frequency
4 Note
t After 600 landings at least.
After 300 landings at least.
After 1800 landings 3-t least .
After 300 landings 3t least.
Chapter 032/ ' Page 4-42 May 15/98
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Inspect at accessible places the conductors from the limit switch on the mechanical lock >f the nose landing gear and >n the cylinder of the nose landing gear. Inspect all ~y-passes within the space of the nose landing gear.
Inspect the locking of the bolt of the front landing gear leg.
Inspect the smooth surface of the piston rod of the nose landing gear leg.
Inspect the dusters on the slide valve of the servo drive and the piston rod of the damper of the nose landing gear.
Examine the blindings (of metal and fabric) of the nose landing gear leg.
Examine the damper and servo-drive of the nose landing gear leg.
Check the pressure and springing value of the damper of the nose landing gear leg.
Frequency Note
After 300 landings at least.
May 15/98
. Page 4-43
Reference No.
LET L 410 WP-E2O
MAINTENANCE SCHEDULE
Page 4 - 4 4
Name of Part/Unit Scheduled Maintenance Check
Check the clearance of the seat of the nose landing gear.
Check the reverse motion of the wheel of the nose landing gear to the neutral position. (To be done after the previous check according to item 032.20.00.L)
Check the clearance in the mechanical lock of the nose landing gear.
Remove the controller of the OP (8) landing gear and check the correctness of fixing of the lever extension, whether the nut fixing the switch to the body is not loosened, the correct opera- tion of the trip. Inspect the controller of the landing gear and its surface finish. After inspection mount the controller again on the aircraft .
Check the pressure in the wheels of the nose and the landing gear. Check the wheel disks. Inspect the wheels and check the connecting bolts of wheels of the nose and the landing gear.
Inspect the tyres.
Frequency
+ 1 After 1800
at least.
After 300 landings at least.
After 1800 landings at least.
Jul 15/99
LET L 410 UVP-E20
IXAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Examine the toothed drive of the inert transmitter and its cables.
Check the operation of brakes (according to the pressure gauge of brakes).
Inspect the main wheels and brakes : - wheel disks completeness - wheel bearings - packing rings - brakes completenes Replace grease in bearings. Check the working clearance of brakes.
Remove the main wheels with brakes (for inspection). After inspection mount again on the airplane.
Frequency Note
At least after 12 months. (Grease in the bea- rings to be replaced after 300 landings at least) . This work must be carried out also with any exchan- ge of the tyre .
After 24 months or 1 800 landings at least.
May 15/98 Page 4-45
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Chapter
1 Page 4-46
Inspect the main wheels and rakes : - wheel disks complete. 3eplace the packing rings.
Examine the wheel of the nose gear : - wheel disk completeness - wheel bearings - packing rings. 3eplace grease in the ~earings .
3emove the wheel of the nose landing gear for inspecting. hfter checking and testing nount the wheel on the 3ircraft.
Inspect the wheel of the nose landing gear: - wheel disks completeness 3eplace the packing rings.
Frequency Note
After 24 months or 1800 landings at least.
After 12 months at least. (Replace grease in bearings after 300 landings at least) . Carry out this work also with every replacing - -
of tyre .
After 24 months or 1800 landings at least.
Jan 12/02
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the pressure of the technical nitrogen in the hydraulic accumulator of the LUN 6900-8 brakes.
Remove the LUN 1446.02-8 double pressure gauge from the aircraft and hand it over to the test room. After testing mount it again in the aircraft .
Check the permissible inaccuracies of the double pressure gauge at the test room.
Remove the MA-100 pressure gauge for testing at the test room. After testing mount it again in the aircraft.
Check the basic inaccuracies on the MA-100 pressure gauge at the test room. Inspect the pressure gauge.
Check the function of the inertial transmitters UA 27A-13 and UA 27A-14.
Frequency Note
After 6 months at least.
After 12 months at least.
I After 1 800 landings
+ at least.
After 300 landings at least.
Chapter /a32/ May 15/98 Page 4-47
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the signalling of switching-on the steering of the nose wheel (pedal and manual).
Preserve the inner space of the spring pull-rod of the motion control on ground.
Check the correct adjustment of the limit switch of the neutral position of foot control pedals and front wheel control.
Check the operation of the nose wheel control (pedal and manual ) .
Remove the BD (8) diode box from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
Check the operation of the BD (8) diode box at the test room. Inspect the diode box.
Remove the ZO-lS(8) delay circuit from the aircraft and handit over to the test room. After checking reinstall in the aircraft.
Check on the ZO-lS(8) delay circuit for delay time. Inspect the delay circuit.
Frequency Note
After 2 400 landings at least.
After 900 landings at least.
Chapter Fl Page 4-48 May 15/98 R
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
LIGHTS
Check the function of the pilot's cabin lighting.
Remove the LUN 2412 instrument lighting power supply test and the LUN 2412.01 lighting control panel and hand them over to the test room. After testing mount them again on the aircraft.
Check the exit voltage of the LUN 2412 power supply test the LUN 2412.01 lighting control panel at the test room. Inspect the source and control panel.
Check the function of the passenger cabin lighting.
Check the front and rear baggage compartment lighting.
Check the operation of the lighting of the static indicator of ice-acreation.
t' Check the operation of the lighting of tail areas.
Check wing leading edge lighting for proper function.
Check the searchlights.
Frequency Note
Only in case when mounted or the aircraft.
Chapter 10331 Aug 31/95 Page 4-49
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the oparation of the emergency lighting (inner and outer) .
Examine fixing of storage batteries. Measure the voltage.
Chapter / 0 3 3 /
Frequency Note
Page 4-50 Aug 31/95
Reference No.
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
NAVIGATION
Check the operation and tightness of the system of the static and total pressure for instruments.
Blow the system of the static and total pressure when disconnecting the instruments of the total and static pressure.
Inspect the LUN 7750.01-8 of the system of the static and total pressure.
Remove the LUN 1113.x~-8 air-speed recorder from the aircraft and hand it over to the test room. After inspection mount it again in the aircraft.
Frequency Note
After 24 months at least.
After con- necting the instrument check the tightness of the system (as per 034. ll.OO.A).
The final figures xx concers only the execution of the scale.
Chapter 10341 Jan 12/02 Page 4-51
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the permisseble ina- ccuracies on the LUN 1113.x~-8 air-speed recorder at the test room. Inspect it.
Remove the LUN 1140.x~-8 variometer from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
Checkt the following on the variometer at the test room: - permissible inaccuracies - airtightness of the static system.
Inspect the variometer.
Remove the LUN 1108.x~-8 air-speed recorder from the aircraft and hand it over to the test room. After testing mount it again in the aircraft .
Zheck the following on the 3ir speed recorder at the test room: - permissible inaccuracies - switching of signalling - permissible inaccuracies of the scale values.
Inspect the air-speed recor- ier .
Chapter 10341 Page 4-52
Frequency
The final figures xx
> concerns only the execution of the scale.
The final figures xx concerns only the execution of the scale.
May 15/98
Reference No.
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Remove the LUN 1173.x~-8 air-speed signaller from the ~~ircraft and hand it over to the test room. After testing mount it again the aircraft.
Check the permissible inaccuracies of switching on the speed signalling device at the test room. Inspect the device.
Remove the LUN 1205.31-8 artificial horizon and hand it over to the test room. After testing mount it again in the aircraft .
Check on the LUN 1205.31-8 artificial horizon at the test room: - starting time - value of the steady current - inaccuracies of the scale data
- operation of break-down signalling
- operation of angle transmitters
- signalling of limit banking angle
- indication of slip - precession speed Inspect the artificial horizon.
Frequency --
Note
After 12 months at least. The final figures xx concerns only the execution of the scale.
Only when mounted in the
. aircraft.
Chapter 10341 Jan 12/02 Page 4-53
Reference No.
034.22.02.C /MM-AGR-74 techno1 . process 034.22.00. *a)/
LET L 410 WP-E20
I?rZAINTENANCE SCHEDULE
- - - -
Name of Part/Unit Scheduled Maintenance Check
Check on the AGR-74-5 horizon 2nd series for: - operation of horizon inoperative signallization
- operation of hand symbol setting
Inspect the face of the horizon.
Remove the AGR-74-5 artifi- cial horizon 2nd series from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
Check on the AGR-74-5 artificial horizon at the test room the following: - starting time - necessary current - operation of the push button - operation of the stabilizer of the failure of the arti- ficial horizon
- transmitter signal - difference of voltage divi- der signal and transmitter
- rate of bank and longitudial incline
- inaccuracy of data on the tilting table.
Inspect the artificial horizon.
Chapter FI
Frequency Note
Only in case when mounted in the aircraft.
I Page 4-54 Aug 31/95
Reference No.
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Remove the LUN 1215.x~ turn indicator and hand it over to the test room. After testing mount it again it the aircraft.
Check on the turn indicator at the test room: - permissible inaccuracies - outlet voltage - operation of the correction switch
Inspect the turn indicator.
Check the operation of the LUN 1221.01-8 liquid-type compass.
Compensate the LUN 1221.01-8 liquid-type compass.
Frequency Note
After 12 nonths at Least Further in zase of its nounting 3f ter reporting 2f faulty iata by the ;crew when finding ief ects luring ~verhaul .
Chapter 1 034 1 Aug 31/95 Page 4-55
Reference No.
LETECK~ ZAVODY a.s. L 410 WP-E20
J?XAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the fixing of the antenna with the receiver for finding-out thunder storm fronts (e.g. RDS-81) and its state. Inspect inside the laminated cover of the antenna.
Measure the value of the contact resistance between the antenna with the receiver for finding-out thunder storm fronts and the frame of the aircraft.
Inspect the BENDIX/KING antennas. Measure the contact resistance between the antenna and the flange.
Check ATC transponder.
Check navigation system VOR/ILS/MKR.
Inspect the antenna of the LUN 3593.30-7 receiver for the glide path radio beacons. Measure the contact resistance between the antenna and the flange.
Check the LUN 3596-7 naviga- tion antenna.Measure the contact resistance between the antenna and the flange.
Chapter F I Page 4-56
Frequency
4 Note
Only in case when mounted in the aircraft.
- 1 After 24 - 1 months least.
L Jan 12/02
Reference No.
LET L 4 1 0 WP-E2O
IYLAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
OXYGEN
Check the portable oxygen apparatus for the absence of impurities and for their proper fastening.
Inspect the oxygen masks and check its operation.
Frequency Note
3nly in case when installed in the aircraft.
Aug 31/95
Chapter / 0 3 5 1 Page 4-57
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Page 4-58 Aug 31/95
Reference No.
LET L 410 WP-E20
MAINTENANCE SCHEDULE
- ppppp
Name of Part/Unit Scheduled Maintenance Check
WATER WASTE
Chapter j0381 Aug 31/95
Frequency Note
Page 4-59
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
- - - - - - - - - - - -
Intentionally left blank.
Frequency Note
Page 4-60 Aug 31/95
Reference No.
LET L 410 WP-E2O
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
STANDART PRACTISES AND STRUCTURES-GENERAL
Inspect the skin of the aircraft .
Inspect the paint of the aircraft.
Inspect the legibility of inscriptions and operation symbols of the aircraft.
Check the tightening of screws of removable covers being a part of the bearing skin.
Inspect the draining openings of the airframe.
Chapter PI Aug 31/95
Frequency Note
After 24 months 2t least.
After 24 months 3t leas$.
Page 4-61
LET L 410 WP-E2O
JXAINTENANCE SCHEDULE
Reference No.
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Chapter F]
Frequency Note
Page 4-62 Aug 31/95
Reference No.
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
'heck the main and emergency loor and their suspensions. 'heck the reliability of locks. Grease the lock of the loor.
Xeck the door of the front Daggage room, the lock and strut. Grease the lock.
2heck the operation of signalling the closed door, loor of emergency exit, door 2f the rear baggage room and the locks of the front baggage room.
Zheck the guards of the main landing gear, pull rods of t h ~ guards of the landing gear. Zheck the adjustment of zlosing of the landing gear.
Chapter F]
--
Frequency Note
Aug 31/95 Page 4 - 6 3
Reference No.
LET L 410 WP-E20
PJLAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Page 4-64
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
FUSELAGE
Examine the rubber parts of the fuselage.
Check the state of components made of laminated glass.
Inspect the room behind the 21st partition whether not soiled.
Check the area of the fixing of locks of the main and nose landing gear and of working cylinders.
Check the reliability of the fixing of instruments in the front part of the fuselage.
Check the lower flange of the landing gear beam at the 14th partition wall on the left and right side in the area of rivet holes.
Wash the inner spaces of the landing gear nacelles.
Inspect the landing gear nacelles.
.............................. 2+ . . . do with every second
check 2.
Chapter 10531 Aug 31/95
Frequency Note
ifter 24 nonths it least.
ifter 24 nonths it least.
Page 4-65
LET L 410 WP-E20
M2iINTENANCE SCHEDULE
Reference No.
Page 4-66
Name of Part/Unit Scheduled Maintenance Check
Check the floor in the pilot's cockpit.
Renew the paint of the rubber anti-ice-accreation bands on the fuselage.
Check the fuselage skin at the level of propeller rota- tion.
Check the skin area in the place of the stop for entry stairs.
Examine at accessible places the suspensions (connecting points ) "wing-f uselagel', "tail areas - fuselage".
Inspect the transition guards of the fuselage with the wing and tail areas.
Chapter Fl
Frequency Note
kf ter 6- aonths 3t least.
-
A u g 31/95
Reference No.
054
054.00.00.A
054.00.00.C
054.00.00.D
054.00.00.E
LET L 410 W P - E 2 0
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
NACELLES
Inspect the air channels.
Inspect the engine nacelles (frame and skin).
Check the packing flags, rubber parts and leather packing elements in the dividing planes of guards.
Check the setting of lever locks of engine guards.
2+ . . . do with every second check 2.
Frequency Note
Chapter 1 054 1 Aug 31/95 Page 4-67
LET L 410 UVP-E20
M.AINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Page 4-68 Aug 31/95
Reference I NO.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
STABILIZERS
Inspect the tail surface.
Inspect the elevator and rudder.
Inspect the edge bands on the tail surface.
Check whether there is no clearance in the suspensions of the elevator and rudder.
Inspect the skin of the stabilizer and the integrity of spot welds.
Check the reliability of the fixing of control drums of balance tabs of the elevator and of the web.
Inspect the elevator in the area of the fixing of the control lever.
Frequency Note
4f ter 3 months 3t least.
Chapter Fl Aug 31/95 Page 4-69
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Page 4-70 Aug 31/95
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
WINDOWS
Inspect the windscreen.
Inspect the windows of the passenger cabin.
Chapter 1056/
Frequency Note
After 6 months 3t least.
Aug 31/95 Page 4-71
Reference No.
LET L 410 UVP-E20
M.AINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Page 4-72 A u g 3 1 / 9 5
Reference No.
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Inspect the flange in the region not covered with skin.
Inspect the whole surface of the wing.
Examine the tapes and fabric blindings in the and moving surfaces wing shroud.
Inspect the linen skin of airelons. A B n S
Inspect the skin on the lower wing surface.
Inspect the suspensions of wing flaps and airelons at accessible places.
Inspect the lower fixing bolts connecting the rear wing suspension with lower flange.
Inspect the trailing edge of airelons and wing flaps.
Inspect the interceptors and rolling tabs.
Inspect the skin of wing flaps and slots.
Frequency Note
After 12 months at least.
Chapter 10571 Jul 15/99 Page 4-73
Reference No.
Page 4-74
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Name of ~art/Unit Scheduled Maintenance Check
Zheck the radial and axial zlearance of bearings of mo- ring areas and their proper securing.
Zheck the surface of leading sdges of wing flaps and slots in places where a contact may xcur between the wing flap ~ i t h the slat and between the slat and the trailing edge of the wing.
2heck the gap between the interceptors and the trailing zdge of the wing.
Inspect the rubber stops of interceptors and rolling tabs.
2+... do with every second check 2.
Frequency Note
9fter 24 nonths 3t least.
Aug 31/95
Reference 1 NO.
061.00.10.C (Prop. MM)
061.00.10.D (Prop. MM)
061.10.00.D (Prop. MM)
061.10.00.F (Prop. MM)
061.10.00.H (Prop. MM)
061.10.00.1 (Prop. MM)
061.10.00.J (Prop. MM)
061.20.01.A (Prop. MM)
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
PROPELLER
Inspect the propeller the propeller speed limiter, the electrohydraulic controller, auxiliary pump, pressure switch and collector.
Inspect the trasmission system of the feedback. Check the system of the compound coupling.
Inspect the clearance between the slide blocks and thrust ring.
Check the fixing of the front propeller cover.
Check the securing of the propeller.
Inspect the conductors.
Inspect the joints on the propeller.
Inspect the propeller cover.
Clean the LUN 7816 propeller speed governor.
Frequency Note
30 also 3f ter the first 10 30UrS.
Do also 3f ter the first 10 hours.
Do also 3f ter the first 10 hours.
Chapter 1061 1 A u g 31/95 Page 4-75
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Clean the LUN 7880.01-8 electro-hydraulic actuator.
Check the operation of the LUN 7840-8 auxiliary pump.
Remove the ZO-4s(8) retarding circuit from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
Check on the retarding circuit 20-4s-8 the retarding time. Inspect the retarding circuit.
Page 4-76
Chapter bi
Note
-
May 15/98
+
+
1 2 3 4
- + + +
- + + +
-
- - -
Frequency
-
LET L 410 UVP-E20
-1NTENANCE SCHEDULE
Reference No.
Name of Part/Unit Scheduled Maintenance Check
061.00.10.E (Prop. MM)
77.15.00.a (Engine MM page 505)
77.55.00.a (Engine MM)
77.56.00.a (Engine MM)
POWER PLANT
Check with engines running:
- operation of the starterge- nerator
- operation of the automatic switching of busbars
- voltage of startergenerators
- measure the voltage on the A-71-1 and the A-71-2
- operation of hydraulic pumps
- operation of the automatic blade feathering
- operation of the propeller speed limiter
- operation of the torque channel
- operation of the system of limiters IELU by means of the switch TEST
- operation of the LUN 5223 generator speed derivative element
2+... do with every second check 2.
Chapter F] Aug 31/98 Page 4-77
LET L 410 UVP-E20
-1NTENANCE SCHEDULE
Reference Name of Part/Unit No. Scheduled Maintenance Check
371.20.00.A Inspect the suspensions (connection centres) of the wing with the engine mount and the engine hinges.
Chapter /071/
Frequency Note
lo also sith every zhange of che engine.
Page 4-78 Aug 3 1 / 9 5
Reference No.
072.02.00.A (Engine MM W/P 72.02.00.a)
072.02.00.B (Engine MM W/P 72.02.00.b)
072.22.00.A (Engine MM W/P 72.22.00.a)
072.23.00.A (Engine MM
072.33.00.A (Engine MM W/P 72.33.00.a)
072.90.00.A (Engine MM W/P 79.10.00.c)
072.90.00.B (Engine MM W/P 79.10.00.b)
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of ~art/Unit Scheduled Maintenance Check
M 601 E OR M 601 E-21 ENGINE
Check visually the fixing of instruments of the fuel and oil installationstfixing of the startergenerator,alterna- tor and ignition.
Inspect the electric system of engine instruments.
Inspect the air bulkhead.
Inspect the inlet screens of the engine.
Inspect the engine suspensions.
Inspect the magnetic plugs of the reducer,drive boxes and oil tank.
Replace the insert of the oil cleaner.
2+....do with every second check 2.
Frequency Note
30 the inspection 3f the plug ~f the box 2nd reducer slso in zase when the signal lamp chips goes on.
Chapter )0721 Page 4-79
(Engine MM W / P 79.50.00.a 79.50.00.c)
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Frequency
Chapter 10721
Note
q i t h e v e r y l f t e r 300, 300 and L500 hou r s . 4 f t e r 1 2 nonths a t Least.
Aug 31/95 Page 4-80
Refe rence No.
073.11.00.A (Engine MM
W/P 73 .11.00.a)
073.22.00.A (Engine MM
LET L 410 WP-E2O
MAINTENANCE SCHEDULE
N a m e of Par t /Uni t Scheduled Maintenance Check
E N G I N E FUEL AND CONTROL
Inspec t t h e components and piping of engine f u e l system under t h e engine cowlings and t h e i n l e t chane l .
I n spec t and wash t h e main f u e l = l e a n e r s of t h e LUN 6290.04-8 f u e l pump.
2 + . . . do w i th every second check 2 .
Frequency Note
Aug 31/95 Page 4-81
Reference No.
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Chapter /073/ Page 4-82
Frequency Note
A u g 31/95
Reference No.
374.10.00.A (Engine MM ;J/P 30.21.00. page 501)
374.10.00.B (Engine MM ;J/P 30.22.00 page 401)
LET L 410 WP-E20
M-AINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
IGNITION
Check the ignition system on the aircraft by means of the testing device.
Replace the low-voltage spark plugs.
2+.. . do with every second check 2.
Chapter 1074 1
Frequency Note
Aug 31/98 Page 4-83
Reference No.
LET L 410 UVP-E2O
M-AINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Page 4-84
Chapter 1074 /
Frequency Note
Aug 31/95
Reference No.
LET L 410 WP-E20
MA.INTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Chapter (0761 J u l 15/99
ENGINE CONTROLS
Check the operation of control levers of engines - Dower control - propeller -control - closing of fuel valves on engine (closing valves of fuel )
- closing of the main fuel inlet (fire valves).
Check the necessary force at the lever and controlling the fuel closing valves.
Check the tension of the engine control cables in the vertical channel behind the cockpit. - - - -
- - - - -
Check the force at the power lever on the front control panel.
Check the adjustment of kine- matics motion of the engine controls.
.............................. 2+...do with the first check :
and then with every second check 2.
Frequency Note
Carry out also with any exchan- ge of the engine.
Page 4-85
Reference No.
076.10.00.A (Engine MM W/P 76.10.00.b)
076.10.00.B (Engine MM- W/P 76.10.00.c)
076.10.00.C (Engine MM W/P 76.10.00.e)
076.10.00.D (Engine MM W/P 76.10.00.g)
076.10 .-00-. E (Engine MM W/P 76.10.00.h)
076.10.00.F (Engine MM W/P 76.10.00.a)
076.10.00.G (Engine MM W/P 76.10.00.d)
- - - - -
Page 4-86
LET L 410 WP-E2O
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the clearance V 3 .
Check the motion of the - - - - - - " Bc If 1 ever.
Check and adjust the length of the push-pull rod.
Check the operation of the engine controls. Lubricate the spherical bearings and the feathering pick-up lever.
Wash dnd lubricate the automa- tic feathering switch lever.
Inspect the levers and pull rods of the engine control. Check the limit positions of the control levers of the engine.
Check the end positions of the control lever of the fuel closing cock.
2+....do with every second check 2.
Chapter 10761
Frequency Note
Reference No.
O76.lO.00 .E (Engine MM W/P 77.55.00.b)
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check the operation of the limiter system under the ope- ration of engines.
Remove the LUN 5260.04 or LUN 5260.05 integrated elec- tronic limiter unit from the aircraft and hand it over to the test room. After testing mount it again in the aircraft .
Check on the LUN 5260.04 or the LUN 5260.05 the number of actions and amplifications of limiters, power consumption. Inspect the IELU.
Remove the LUN 5223 generator speed derivative element from the aircraft and hand it over to test room for testing. After testing mount it again in the aircraft.
Check on the LUN 5223 genera- tor speed derivative element at the test room: - output voltage - operation. Inspect the generator speed Aerivative element.
Frequency Note
To be done if the a-c uas out of pera at ion 3t min. 10 days.
Chapter /0761 May 15/98 Page 4-87
Reference No.
376.15.00.A (Engine MM Y/P 77.15.00.a)
076.15.00.B (Engine MM W/P 76.30.00.a)
076.52.00.A (Engine MM W/P 77.52.00.a)
076.52.00.B (Engine MM W/P 76.30.00.a)
LETECKE ZAVODY a.s. L 410 UVP-E20
M-AINTENANCE SCHEDULE
- -- - --
Name of Part/Unit Scheduled Maintenance Check
Remove the LUN 1476-8 torque limiter pressure switch and hand it over to the test room for testing. After testing mount it again in the aircraft.
Check on the LUN 1476-8 torque limiter pressure switch at the test room: - basic data - insulation resistance. Inspect the torque limiter pressure switch.
Check the adjustment of the LUN 7370-8 fuel valve control.
Remove the switch of the LUN 3280-8 automatic feathering pressure switch and hand it over to the test room for testing. After testing mount it again in the aircraft.
Check on the LUN 3280-8 automatic feathering pressure switch at the test room: - basic inaccuracies - insulation resistance. Inspect the switch.
Frequency Note
Chapter 10761 Page 4-88 Jan 12/02
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
ENGINE INDICATING
Remove the LUN 13 47. xx generator speed indicator from the aircraft and hand it over to the test room. After testing mount it again in the aircraft.
Check on the LUN 1347.x~ generator speed indicator the basic inaccuracies at the test room. Inspect the speed indi- cator.
Remove the LUN 1348.x~ propeller speed indicator from aircraft and hand it over to the test room. After testing mount it again in the aircraft .
Check on the LUN 1348.x~ propeller speed indicator the basic inaccuracies at the test room. Inspect the speed indicator.
Remove the LUN 1540.02-8 torque transmitter set and the LUN 1539.02-8 torque indicator and hand them over to the test room. After testing mount them again in the aircraft.
Frequency Note
?ha1 fi- jures zoncern only the zxecution 2f the ;cale.
Aug 31/95 Page 4 - 8 9
Reference No.
- -- - -- --
077.11.00.B (Engine MM W/P 77.11.00.a)
077.22.02.A (Engine MM W/P 77.22.00.b)
077.22.02.B (Engine MM W/P 77.22.00.a)
LET L 410 UVP-E20
L\?LAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Check on the LUN 1540.02-8 torque transmitter set and on the LUN 1539.04-8 torque indi- cator set at the test room: - basic inaccuracies - insulating resistance Inspect the transmitter and the indicator.
Remove the LUN 1370.02-8 inter turbine temperature indicator from the aircraft and hand it over to the test room. After testing mount it again in the aircraft .
Check on the LUN 1370.02-8 inter turbine temperature indicator the basic inaccuracies at the test room. Inspect the thermometer.
Remove the LUN 1358-8 oil temperature transmitter from the aircraft and hand it over to the test room. After testing mount it again in the aircraft .
Check on the LUN 1358-8 oil temperature transmitter at the test room: - basic inaccuracies - insulating resistance. Inspect the temperature transmitter.
Frequency Note
Page 4-90 Aug 31 /95
Reference No.
078.10.00.A (Engine MM W/P 78.10.00.a)
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
EXHAUST
Inspect the exhaust bends.
Chapter F]
Frequency Note
Aug 31/95 Page 4 - 9 1
Reference No.
LET L 410 UVP-E20
m I N T E N A N C E SCHEDULE
-
Name of Part/Unit Scheduled Maintenance Check
- - -
Intentionally left blank.
Frequency Note
Page 4 - 9 2 A u g 31/95
Reference No.
079.30.00.A (Engine MM W/P 79.50.00.b)
079.40.00.A
LETECKE ZAVODY a.s. L 410 WP-E2O
PJZAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Zheck the oil amount in the ~ i l tank by means of a gauge.
Carry out visual inspection ~f oil system hoses.
Inspect the 443 512 506 705 oil cooler.
Remove the TPV 1 (7) thermostatic and overpressure valve from the oil cooler and hand them over to the test room. After adjusting mount it again in the aircraft.
Check the adjustment of the TPV l(7) thermostatic and overpressure valve at the test room.
Frequency Note
Operations specified in the following item are to be carried out only for hoses of more than 5 years in operation.
Chapter b] Jan 12/02 Page 4-93
Reference No.
Page 4-94
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
Chapter 1079 1 Aug 31/95
Reference No.
LET L 410 UVP-E20
JXULINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
STARTING
Check the cycling time of the LUN 2601.01-8 time relay.
Chapter j0801
Frequency N o t e
Aug 31/95 Page 4-95
Reference No.
LET L 4 1 0 W P - E 2 0
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Chapter 10801
Page 4-96
Frequency
Aug 31/95
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
WATER INJECTION
Check the operation of the LUN 5155-8 water injection Pump
4 + .... carry out with every 4th check 1
Frequency Note
Do in case the pump was depreservec
Jan 12/02 Page 4-97
Reference No.
. LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of Part/Unit Scheduled Maintenance Check
Intentionally left blank.
Frequency Note
) Page 4-98 Aug 31/95
LET L 410 UVP-E20
MJLINTENANCE SCHEDULE
5
I N S P E C T I O N O F AEROPLANE
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MAINTENANCE SCHEDULE
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LETECKE zljVODY a.s. L 410 UVP-E20
MZiINTENANCE SCHEDULE
I 5.1. General
5.1.1. The purpose of the aircraft inspection is the evaluation
of the technical state of the airframe and its systems.
I 5.1.2. The inspection of the aircraft is done after 4 800 hours + 150 hours, at least after 10 years from the date of the ' - - - - - - I - - - - - - - - - - - - - - - - - - - - - - - - - - - -
airplane takeover by customer or from dateof t h e latest
I overhaul or from the previous inspection.
5.1.3. During the inspection also operations according to the
overhaul of the periodic maintenance must be carried out,
i.e. according to this maintenance schedule of the
L 410 UVP-E20 airplane.
I
I 1 5.1.4. Based on the results of the inspection, the necessary
I repairs must be carried out so that the required flight I
I I - - - - - - -
I - - - safety level i s secured as well-as the ability of the I
- - - - - - - - - - - - - - - - -
I aircraft to fly till the next inspection. I
I I
1 5.1.5. The airplane inspection is carried out according to an
approved program in the airplane manufacturer's factory,
or in a repar factory autorized by the airplane
manufactorer and airworthines autority to do so and given
the necessary documentation by the airplane manufactorer.
Sep 25/01 Page 5-3 I
I
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
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Aug 31/95
LET L 410 UVP-E20
M-AINTENANCE SCHEDULE
S E A S O N A L
6 M A I N T E N A N C E
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MAINTENANCE SCHEDULE
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LET L 410 UVP-E20
MAINTENANCE SCHEDULE
6.1. General
The seasonal maintenance (seasonal work) is carried out
according to temperature changes (decreasing or increasing)
in area of aircraft operation.
The preparation works for the seasonal maintenance are
carried out within the scope of the nearest periodic
maintenance. - - - - - -
FLIGHT CONTROLS
1 6.2. Works which must be carried out with temperature decrease
Adjust the tension of the control cables in the rudder and elevator trim tabs.
HYDRAULIC BOWER
Note Reference
No.
Bleed the hydraulic piping of the landing gear control system in the landing gear nacelles.
Name of Part/Unit Scheduled Maintenance Check
LIGHTS
Remove from the aircraft the storage battery (e.g. 21 NiCa 450-1) in order to check it at the shop inspection. After the checks, reinstall it in the aircraft.
~- - - - - - - - - - - - - - - - -
Check the maximum charging current on the storage battery (e.g. 21 NiCa 450-1) and recharge the storage battery.
May 15/98 Page 6-3
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Reference No.
Name of Part/Unit Scheduled Maintenance Check
NAVIGATION
Check the errors of the Rn 45 ambient air thermometer.
PROPELLERS
Check the cycle time of the LUN 2601-8 propeller time relay.
Note
16.3. Work which must be carried out with temperature increase
Page 6-4
FLIGHT CONTROLS
Adjust the tension of the control cables in the rudder and elevator trim tabs.
HYDRAULIC POWER
Bleed the hydraulic piping of the landing gear control system in the landing gear nacelles.
May 1 5 / 9 8
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
6.4. Limitations of the operation (maintenace)
The limitation for the operation is given in the L410 WP-E20
I Maintenance Manual, section 012.
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MAINTENANCE SCHEDULE
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I - I I Page 6-6
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
UNSCHEDULED
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MAINTENANCE SCHEDULE
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LET L 410 WP-E20
-1NTENANCE SCHEDULE
7 . 1 . Conditions for doins unscheduled inspections
7 . 1 . 1 . Work to be done after a hard landing. A landing is
considered hard when the g-load in the centre of gravity
exceeds 2 , 5 as well as in case of:
- landing on the nose wheel - landing with a great banking angle (more than lo0) - undershoot (landing short of the runway) - leaving runway
7 . 1 . 2 . Work to be done after a landing at higher - than - permisible - maximum landing weight.
7 . 1 . 3 . Work to be done after the aircraft flew throught storm
activity and after the lighting strike.
7 . 1 . 4 . Work to be done during unscheduled inspections is given in
the table-point 7 . 2 .
- Aug 31/95 Page 7-3
LETECKE ZAVODY a.s. L 4 1 0 WP-E2O
MAINTENANCE S C H E D U L E
7.2. Work done at the unscheduled inspections
Para of the MS or section of the MM
Hard landing
Lighting strike, flight in the storm activity
Landing at weight higher than max. landing weight
NOTE: - @TO be done in case the brakes were used at maximum
weight (without using the reverse - pitch braking)
In case the landing weight exceeded the max.
permissible landing weight, record the actual weight
and nature of landing into the aircraft logbook and
into the nose and main LG certificates (if
supplied). - - - - - -
Page 7-4 Jan 1 2 / 0 2
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
1 7.3. Works carried out after bird impact After bird impact carry out the check according to following
items :
~ 023.12.02.A; 030.10.00.A; 030.20.00.B; 030.42.03.A;
033.40.00.B; 033.40.05.A; 034.11.00.A; 034.12.00.A; - - - - -
0 3 4 . 4 1 ~ 0 0 . ~ : 034.-5O.OO-.A; 034-.53.84;A; 034-.53;05.-A:
051.00.00.A; 052.80.00.A; 053.00.00.B; 053.50.00.A;
054.00.00.A,C;055.00.OO.A; 056.10.00.B;057.30.0O.A;
061.00.10.A (Prop. MM ) ; 061.10.00.J (Prop. MM ) ;
072.22.00.A (Engine MM ) ; 072.23.00.A (Engine MM ) ;
079.40.01.A.
- May 15/98 Page 7-5
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MAINTENANCE SCHEDULE
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LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
STOFL%GE OF AEROPLANE
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MAINTENANCE SCHEDULE
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LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
8.1. General
8.1.1. After putting the aircraft out of operation for more than
15 days it is necessary to execute works connected with
the prepraration for the storage, during storing and when
putting the aircraft into operation.
8.1.2. The extent of work connected with the prepraration for the
storage depends on the planned storage time.
8.1.3. There are the following types of storage:
- for a time of 15 to 30 days - for a duration up to 3 months - for a duration more than 3 months (i.e. 6 months,
9 months, 12 months).
8.1.4. The aircraft must be stored provided with all blinds and
covers.
Work done durinq the preparation for storinq
8.2.1. Work carried out for storing the aircraft for a duration
of 15 to 30 days.
8.2.1.1. Carry out the work in the extent of the routine
maintenance B - only works given for the case that the
stoppage time of the aircraft till the next flight is
presumed to be more than 2 hours.
8.2.1.2. The metallic parts on wipers, all screw heads fixing the
covers, door handles and other motionless parts on the
outer surface of the aircraft without protection by a
varnish or with a damaged varnish must be preserved with
the KRNB or K-17 GOST 10877-76 preserving wax.
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LET L 410 WP-E20
Mi3INTENANCE SCHEDULE
8.2.1.3. The metallic parts on control levers of wing flaps and
airelons jon which the paint has been damaged, the
springs of the quick-release locks on the forward
fuselage covers, the piston rods of the landing gear
shock absorbers and other movable parts in the landing
gear space to be coated with preserving oil. The
quick-release locks of covers must be tightened after
preserving.
8.2.1.4. Clean the landing gear and after drying preserve the
metallic parts of it which are not protected by the
paint (excepting the brake working surfaces
and shock-absorber piston rods) with preserving wax.
8.2.1.5. Cover the cockpit windows with the L 410.9516 cover.
8.2.1.6. If the water injection system of the engine has not been
preserved, preserve it according to the working
procedure 082.00.00.A.
8.2.1.7. The fuel tanks must be filled-up to the full amount
(this does not concern the tip tanks).
8.2.1.8. The fuel system must be filled up with fuel and the fuel
cock must be closed.
8.2.1.9. Remove the storage batteries from the aircraft (e.g.
20 NKBN-25,SAFT,VARTA and 21 NiCd 450-1) and store them.
Carry out the maintenance as follows:
- 20 NKBN-25,SAFT and VARTA storage battery according to instructions in the Maintenance manual of the
20 NKBN-25,SAFT and VARTA storage battery
- 21 NiCd 450-1 storage battery according to aircraft
MM, chapter 033.
-
Page 8-4 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
8.2.1.10. Ensure that the wheels of the aircraft rest on a hard,
even surface and that the aircraft is not inclined to
one side only. Treat the tyre by SVITPREN warhish
against surface craks.
8.2.2. Work done for the storinq of the aircraft for a duration
of up to 3 months - - - - - - - - -
8.2.2.1. Carry out work according to items 8.2.1.1. to 8.2.1.10.
8.2.2.2 Preserve the propeller see propeller MM, section
061.00.00.)
8.2.2.3. Preserve the engines (see engine MM, section 72.03.00.)
8.2.3. Work done for the storinq of the aircraft for a duration
of more than 3 months
8.2.3 .l. Carry out work-aceording to $terns 8.2.2.
8.2.3.2. Do the outer preservation of engines by spraying oil
KONKOR 101. At the same time protect the electric
installation and the ignition system against the oil
penetration.
8.2.3.3. Wash out the main wheel and nose wheel bearings and
preserve them with the L CSN 657131 or
K-17 GOST 10 877-76 preserving grease.
- - - - - - - - - - - - - - - - - - - - - - - - -
8.3. Maintenance of the aircraft durinq storinq
8.3.1. Maintenance of aircraft after any 15 days of storinq
May 15/98 Page 8-5
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
8.3.1.1. Inspect the engines, silicagel of indicators and carry
out works which are given in the section 72.03.00 of the
para "After 15 days of storingt1 in the MM-engine. Turn
the propeller by 10 revolutions so that the blade
originally pointing upwards now points downwards after
the propeller has been secured.
8.3.1.2. Check visually the pressure in the tyres and LIG shock
absorbers.
8.3.1.3. Check whether there is no humidity under the covers. If
so, remove the covers, dry them of and check the
aircraft surface for corrosion.
8.3.2. Maintenance of the aircraft after any 30 davs of storinq
8.3.2.1. If the aircraft is stored under tropical and subtropical
conditions, clean the windshield with antiseptic means
I in order to prevent the formation of mildew
I (ethylalcohol).
I
I 8.4. Work done when puttinq the aircraft into operation after
I storinq
I 8.4.1. Work done after storinq the aircraft for a duration of 15 I I to 30 days
: 8.4.1.1. Remove the covers from the aircraft.
I I 8.4.1.2. Remove the preserving wax from the preserved outer
I surfaces and the landing gear by means of cleaning I I petrol. Take care that the friction surfaces are not I greased.
I Page 8-6 Aug 31/95
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
8.4.1.3. Install the charged (e.g. 20 NKBN-25, SAFT, VARTA and
21 NiCd 450-1) storage batteries.
8.4.1.4. Remove the preservation from the water injection
sys tem.
8,4.1.5. - - - - - - Carry out the maintenance of the aircraft in the extent - - - - - - - - - - - - - - -
of the periodic maintenance 1 and the lubrication
corresponding to the respective season.
8.4.2. Work done after storinq the aircraft for a duration up to
3 months.
I 8.4.2.1. Carry out work given in items'8.4.1.1. to 8.4.1.5.
8.4.2.2. Remove the preservation from engines (see engine MM,
section 72.03.00).
8- 4r2.3 . -Remove the- preser~a~ion and clean- the propeLler ( see
propeller MM, section 061.10.00).
8.4.2.4. Bleed the suction piping of the hydrulic system
according to the aircraft MM, section 029.00.00.
8.4.2.5. Refill nitrogen in the hydraulic accumulators (see I
aircraft MM, section 029.00.00). I
8.4.2.6. Check the cabin fire extinguisher. I
8.4.2.7, Carry o u t the engine t e s t lsee aircraft - - MM, - section - I - - - -
071.00.00). I
Jan 12/02 Page 8-7
LETECKE ZAVODY a.s. L 410 UVP-E20
EISLINTENANCE SCHEDULE
8.4.3. Work done after storinq the aircraft for a duration over 3
months
8.4.3.1. Carry out operations according to items 8.4.2.1. to
I 8.4.2.7.
8.4.3.2. Remove the preservation of enginesfrom outSide.While - - - - - - - - - - - - - - - - -
- - - - - -
- - - - - - -
doing so protect the electric installation and the
ignition system against the penetration of petrol.
8.4.3.3. Grease the mainwheel and nose wheel bearings.
8.4.3.4. Carry out the test flight. The, program of the
test flight is given in the separate document Check
Flight Methodics for the L 410 UVP-E20 aeroplane ' I .
Page 8-8 Jan 12/02
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Aug 31/95
S U P P L E M E N T S
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MAINTENANCE SCHEDULE
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LET L 410 UVP-E2O
PJIAINTENANCE SCHEDULE
Lubrication plan
9.1.1. General
The lubrication plan consists of:
- survey of lubricated places, arranged according to the
type of joints
- lubrication tables, arranged according to types of - - - - - - - - -
inspection of the-periodic maintenance - - -
- - - - -
- tables of lubricated places, the lubrication of which is done in another interval than 300 hours.
9.1.2. Survey of lubricated places
The survey of lubricated places is arranged according to
the type of joints. The joint type is given by the first
figure of the triplace numerical marking of the joint:
lxx ..... hinged bearings 2xx ..... ball bearings 3xx ..... tapered roller bearings
- - - -4xx.; .; .grease nipples- - - - - - - - - - - - - - - - -
5xx ..... cables, bowden cable 6xx ..... hinges, bolts, sliding parts 7xx.....renewal of preservation of bolts and hinges
The illustration of lubricated places is in figures
9.1.-1 to 9.1.-10. To this survey belong the tables
9.1.3., 9.1.4. where the individual lubricated places
expressed by numbers,( corresponding to this survey) are
arranged into columns according to the periodicity
maintenance - inspection.
- Aug 31/95 Page 9.1-1
Number 3f lubrid. places.
Page 9.1-2
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name
- - -
Hinsed bearinqs
on the pull rods of the control of rolling tab
on the cylinder of ground spoiler control
on the pull rods of closing of covers of the main landing gear
on the working cylinder of the main landing gear
suspensions of the covers of the nose landing gear
suspension of the countershaft for closing the covers of the nose landing gear
on the pull-rods of closing the nose landing gear covers on the pull-rod of the nose landing gear control
on the pull-rod of the cylinder of the nose landing gear servo-drive
on the pull-rods between the block of foot control and the column of the manual control (control system of the nose wheel from pedals)
on the pull-rods of the engine control
in the hinged joints of the fixing of teleflex of propeller control to the engine
control suspension of the rudder
Pcs gumber of figure
Aug 31/95
Number ~f lubrid . places.
LETECKE ZAVODY a.s. L 410 UVP-E2O
MAINTENANCE SCHEDULE
Name
on the lever and on the pull-rod of controlling the trim tab of the aileron
suspensions of the aileron trim tab
on connecting pull-rods of the control of wing flaps
on the strut of the front baggage compartment door
suspension of the working cylinder of the nose landing gear
Ball bearinqs
- it is carried out during airplane inspection
elevator suspensions
rudder suspensions
on the pull-rod of the control of trim tabs of the rudder and inside of it
suspensions of ailerons
suspensions of wing flaps (except the suspensions at the frame No. 10)
on the pull-rod of the control of wing flaps
- it is carried out during airplane inspection
on the lever of the trim tab control (elevator)
- it is carried out during airplane inspection
Pcs !?umber of figure
Jan 12/02 Page 9.1-3
Number >f lubrid. places.
Page 9.1-4
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name
on the pulleys of the control system of the de-icing of engine air inlet
on the pull-rod of the elevator control
on the lever of the elevator control
on the pull-rod of aileron
on the pull-rod of the trim tab control of elevator
lower bearings of the rudder
on the pull-rod of the trim tab ' control of the rudder-at the trim tab
on the countershaft of the rudder trim tab control in rudder
on the pull-rod of ground spoiler control between the 14th and 15th rib
suspensions of wing flaps at the 10th rib
- it is carried out during airplane inspection
countershaft of the nose wheel control
Pcs Number of figure
Jan 12/02
Number >f lubrid. places.
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name
Tapered roller bearinqs
in the wheel of the main landing gear
in the wheel of the nose landing gear
Grease nipples
on the pull-rods of the heating control
on the brake pedals
on the drum of trim tab control (in the stabilizer)
on the pull-rods of engine air intake de-icing /ice separator vane/
on the leg of the main landing gear
on the leg of the nose landing gear and lock of the nose landing gear
on the leg of the nose landing gear
- it is carried out during airplane inspection
Cables, bowden cables
cables the aircraft control
cables of engine control
bowden cable of the mechanical indica- tor of the nose landing gear
Piano hinqes, bolts, slidins parts
spring stop in the control of the elevator (on the rear stop under the floor of the pilot's cockpit)
Pcs Jumber of figure
Jan 12/02 Page 9.1-5
Number of lubrid places.
Page 9.1-6
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
- --
Name
lever pin of pulleys of the de-icing of the engine air intake
shaft of the GA-211A-00-4 mechanical windshield wiper
bearing of the rotating signal system of ice rotary- detector - - - ~ ~ ~ ~ ~ ~ ~
sliding parts of the wiper arms
suspension of the cover of main landing gear
lever pin of the cover of main landing gear
pin of the mechanical indicator of the main landing gear
sliding parts of the main landing gear lock
pins of the rear cover of the nose landing gear with the pull-rod
pins of the lever system of the servodrive of nose wheel
shaft in the box of the SKP 1 (8) limit switches and in the B 062 266 N braket
universal quick-release locks of covers on the fuselage (for the access to board batteries, radio equipment etc) piano hinges of the lower engine cowls and-theirvanes - - - - - - - ~ - ~ ~ ~ ~
piano hinges of suspensions of the olevator trim tab
piano hinge of the suspension of the rudder trim tab
Pcs Number of figure
Aug 31/95
Number ~f lubrid. places.
LETECKE ZAVODY a.s. L 410 UVP-E20
IXAINTENANCE S C H E D U L E
Name
?iano hinge of the ground spoiler
sliding parts of control levers in the ?ilotls cockpit. The friction lever nust not be greased.
sliding parts of the engine controls including the propeller reversing cam
suspensions of toilet door
suspensions of door in the partition ~etween the pilots and passengers
suspensions of the main entry and zmergency doors
fixing of the electro-mechanical strut in the rudder and left airleron
pivots locks engine cowls
tightening screws of fuel tanks and ~f water injection tank closures
lever of the drive of the trim tab position transmitter
zountershaft of the L 410.5350-01 nose wheel control
- it is carried out during airplane inspection
Pcs !?umber of figure
Jan 12/02 Page 9.1-7
Number 3f lubrid. places.
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Name
levers the heating control
- it is carried out during airpla inspection
. ne
rear - - -
Renewal of bolt and hinqe preservation
horizontal stabilizer/fuselage attachment
vertical fin/fuselage attachment
pin of the rudder upper suspension (without removal)
engine mount /wing attachment
ABC tab attachment
main landing gear shock absorber lower attachment joint
connection of the front baggage compartment door with the fuselage
connection - of- the nose tilting cone with the fuselage
Pcs Number of figure
) Page 9.1-8 Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
9.1.3. Lubrication tables arranqed accordinq to the types of
periodic maintenance (2, 3, 4)
Scheduled work
1. Wash with cleaning petrol and grease with the CIATIM 201 grease. The lubrication place 217 to be lubricated with type of maintenance 3 and 4 by means of a syringe - see MM aircraft subgroup 027.21.00 page 301 to 304.
Type of periodic maintenance
(lubrication place)
Jan 12/02 Page 9.1-9
LETECKE ZAVODY a.s. L 410 W P - E 2 0
MAINTENANCE SCHEDULE
Scheduled work
Type of periodic maintenance
(lubrication place)
-
2. After dismantling the connecting parts wash with petrol and grease with the CIATIM 201 grease.
When cleaning and lubricating the extreme bearings of eleva- tor (lubrication place 2 0 2 ) remove the duster (see detail B in fig. 9.1-1) and push it back into hole in the rib after lubrication.
3 . After dismantling the connecting parts wash with cleaning petrol and grease with MOLYKA (paste) or the VNIIP - 2 2 5 or the VNIIP - 2 3 2 .
) Page 9.1-10 Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Scheduled work
2. Wash with petrol and lubricate with the MK-8 oil. At lubrication places 606, 616, 617 rotate with the wire of the hinge. Lubricate the lubrica- tion place 601 with a mixture of the CIATIM 201 grease and the KONKOR 101 preserving oil. Lubricate the lubrication place 626 with the AMG 10 hydraulic liquid. The lubrication place 637 to be lubricated the KONKOR 101 pre- serving oil by means of a syringe and blow away oil by air-pump.
5. Loosen the locks of the nose cover of the fuselage and turn the nose cover so that the sensor of the rotary ice detector aims askew upwards. Switch on the signal device of the LUN 1771.3-8 or the LUN 1771.4-8 rotary ice detector and put a few drops of the oil 132-8 on the outer accessible friction surface of the rotating sensor.
6. Remove the screw at the end of the GA-211A-00-4 windshield wiper shaft and press CIATIM 201 grease into the hole.
7. Wipe, using a clean cloth and lubricate, using the CIATIM 201 grease, the grease nipples with grease gun.
Type of periodic maintenance
(lubrication place)
Jan 12/02 Page
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Scheduled work
- - - - -
8. Clean with a clean cloth and grease with MLO-ELASTIK-R or CIATIM 201. At inaccessible places the MK-8 oil and a syringe with a piece of plastic tubing instead of the needle. The lubrication is important to be done mainly in places where cables pass over the rollers.
9. Clean with petrol and preserve with vaseline (e.g. L or KI 77 preservative vaseline). Lubricate the place 706 by by means of a syringe with KONKOR 101 preservative oil.
10.Wash the bearings with petrol and fill them up with the NH-2 grease all the year round. Note: As a substitute grease
one may use at tempera- ture above -25O~ the NK-50 grease and at tem eratures below g -25 C a mixture of the NK-50 grease and 25% of the CIATIM 201 grease.
11.Wash with petrol and preserve with the KONKOR 101 or the MK-8 oil.
Type of periodic maintenance
(lubrication place)
I Page 9.1-12 Jan 12/02
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
9.1.4. Tables of lubrication points, the lubrication of which is
done in another interval than 300 hours
- lubrication done once a month ---- -
Scheduled work
Wipe with clean cloth and using the CIATIM 201 grease, lubricate the nipples with grease gun
Wash with cleaning petrol and grease with CIATIM 201
Wash with cleaning petrol and grease with the MOLYKA or the VNIINP-225 (232) compound
Wash with cleaning petrol and grease by means of a grease gun the nipples with 3cm3 of the CIATIM 201, the landing gear being set in the straight direction and both extreme positions.
Lubrication point
Note: */ If you are not sure that the joint is thoroughly lubricated, remove the lubricating nipple, clean the channel by means of a wire and repeat the lubrication. If the process was not successful, dismantle the critical joint, wash it with cleaning petrol throughly, assemble the joint and lubricate again. Carry out the lubrication once per two weeks in a sand environment.
lubrication done with any enqine replacement
I Scheduled work 1 Lubrication point I
9 . 1 . 5 . Lubrication dependinq on the season of the year
If the plane has not flown the number of flight hours in the bellow mentoned calendar period, it is neccesary to carry out lubrication which corresponds to these flight hours : 1 x in 6 months lubrication as per check 2 1 x in 2 years lubrication as per check 3 1 x in 4 years lubrication as per check 4
1. Clean with cleaning petrol and preserve with vaseline (e.g. the L or K-17 preservative vaseline)
- May 15/98
705
Page 9.1-13
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
F i g . 9.1 - 1 TAIL UNIT A - detail of the rudder trim tab control assembly
B - detail of the elevator outer hinge bearing with the dust - cap
Page 9.1-14 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
F i g . 9.1 - 4 NOSE WHEEL STEERING
- Aug 31/95 Page 9.1-17
LET L 410 W P - E 2 0
MAINTENANCE SCHEDULE
Fig. 9.1 - 5 MAIN LANDING GEAR
- Page 9.1-18 Aug 31/95
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Fig. 9.1 - 2 AIRCRAFT CONTROLS A - Block of t h e hand and f o o t c o n t r o l
J a n 1 2 / 0 2 Page 9.1-15
LETECKE ZAVODY a.s. L 410 UVP-E2O
MAINTENANCE SCHEDULE
Fig. 9.1 - 3 'WING
Page 9.1-16 Jan 12/02
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
9.1 - 6 NOSE LANDING GEAR
Page 9.1-19
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
F I G . 9.1 - 7 ENGINE CONTROLS AND ENGINE COWLINGS
- Page 9.1-20 Aug 3 1 / 9 5
LET L 410 UVP-E2O
ISAINTENANCE SCHEDULE
Fig. 9.1 - 8 ENGINE NACELLE A - Detail of hinged joint of the teleflex mounting
- Aug 31/95 Page 9.1-21
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
I 9 . 1 - 9 FUSELAGE FRONT SECTION
I A - detail of mechanical windshield wiper
- I I Page 9 .1 -22 Aug 3 1 / 9 5
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Fig. 9.1 - 10 DOOR AND FRONT AIRCRAFT TILTING CONE
Page 9 . 1 - 2 3
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
- I
I Page 9.1-24
Intentionally left blank.
Aug 31/95
LETECKE ZAVODY a.s. L 410 UVP-E20
MSLINTENANCE S C H E D U L E
1 9.2. List of works after which it is necessary to carry out
weiqhinq of aircraft, levellins of aircraft and service
test fliqht
9.2.1. General
Carry out weighing of the aircraft in the following cases:
- after the adaption of the aircraft to another version or modification
- after the performed inspection of the aircraft - after replacing the wing
Carry out levelling of the aircraft in the following
cases:
- after the performed inspection of the aircraft - after emergency cases given in the para 7 of this
Maintenance Schedule
- after replacing the
Carry out the service
- after the performed - if the aircraft has - after the execution 9.2.4.1
- after the performed
wing, stabilizer, tail unit
test flight in the following cases:
periodic maintenance - checks 3, 4 been stored for more than 3 months
of works which are specified in item
inspection of the aircraft
9.2.2. Weiqhinq of aircraft
9.2.2.1. Check the state of the empty equipped aircraft.
Note : The weight of the empty equipped aircraft is
defined in the Flight Manual of
the L 410 UVP-E20 aircraft.
Jan 12/02 Page 9.2-1
LETECKE ZAVODY a.s. L 4 1 0 UVP-E20
MAINTENANCE SCHEDULE
9 .2 .2 .2 . Drain off all fuel.
9 . 2 . 2 . 3 . Fill up the undischargeable fuel amount
(left side - main fuel tanks 6 litres
wing tip tank 2,4 litre
right side - main fuel tanks 6 litres
wing tip tank - - - - - - - - - - - - - - - - - - - - - - - - - - 2,4 litre)
9 . 2 . 2 . 4 . Tare the balance.
9 .2 .2 .5 . Lift the aircraft on jacks.
9 .2 .2 .6 . Set the aircraft to cross plane by means of levelling
points No. 1 9 on the left and right wing with a maximum
difference of 1 mm.
9.2 .2 .7 . Set the aircraft to longitudinal plane by means of
levelling points on the fuselage No. 1 and No. 7 with a - - - ~ ~ ~
- - - - -
- maximum difference of 1 mm.
9 . 2 . 2 . 8 . Secure the jacks.
9 .2 .2 .9 . Check three times the found reactions. Record the result
into the Weight and Balance Record, carry out the
calculation of the weight of the empty aircraft and
determine the position of its centre of gravity in %
MAC.
9 . 2 . 2 . 1 0 . The results of weight and balance found by the
- - - - - - calculation record into the Flight Manual of tlik
L 4 1 0 WP-E20 aircraft, i.e. the weight and centre of
gravity in % MAC.
Page 9.2-2 Jan 1 2 / 0 2
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
9.2.3. Levellinq of aircraft
9.2.3.1. Check whether the aircraft is empty in the basic
configuration.
9.2.3.2. Discharge the fuel from the aircraft.
9.2.3.3. Lift the aircraft on jacks.
9.2.3.4. Set the aircraft to the crossplane by means of levelling
points No. 19 on the left and right wing with a maximum
difference of 1 mm.
9.2.3.5. Set the aircraft to the longitudinal plane of the
fuselage by means of levelling points No. 1 and 7 with a
maximum difference of 1 mm.
9.2.3.6. Secure the jacks.
9.2.3.7. Carry out levelling according to the Levelling and
Rigging Record of the aircraft and record the measured
values.
9.2.3.8. Compare the measured values with the values given in the
Record of the aircraft.
In case of exceeding the permissible tolerances it is
necessary to get the expert opinion of the manufacturer.
Jan 12/02 Page 9.2-3
LETECKE ZAVODY a.s. L 410 UVP-E20
I?/LAINTENANCE SCHEDULE
9 .2 .4 . O~eration check
9 . 2 . 4 . 1 . List of products after replacement of which carry out the service test flight.
I M 601 E or M-6llf E-21 Engine
No. of subgroup PTP
Replacement - - - - - - - - - - of one pr both -engines
Name of product and marking
Propeller
Works after the execution of which it is necessary to carry out the service test flight
Fuel regulator
Replacement of one or both propellers
Replacement of the regulator of one or both engines
1 Wing l~e~lacement of wing
Propeller Speed regulator
1 Stabilizer (Replacement of stabilizer
Replacement of one or both propeller regulators
I Replacement - - - - - - of the -fin
Replacement of elevator
l Rudder l~e~lacement of rudder
1 Ailerons Replacement of one or both ailerons
Operating test flight is performed as well as after exchange of every instrument whose setting or adjusting depends on the influence of aerodinamic forces in flight.
Wing flaps
Page 9.2 -4
Replacement of the inner or outer wing flap or slot
Jan 1 2 / 0 2 R
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
9.2.4.2. Proqram of operation check fliqhts
The program of the operation check flight (test flight) (see item 1.1.3.2.h) includes the recommended ways of the verification of the operation of individual aircraft systems, indicated values and aircraft characteristics during the flight. The aeroplane must be completed and equipped. The operator may according to his conditions adjust or supplement the operation check flight. All values found during the ground and flight tests should be recorded in the final internal certificate.
Jan 12/02 Page 9.2-5
LETECKE ZAVODY a.s. L 410 WP-E20
MAINTENANCE SCHEDULE
Intentionally left blank.
1 Page 9.2-6 Jan 12/02
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
The L 41 0 UVP-E20 Aeroplane
LEVELLING AND RIGGING RECORD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aeroplane Serial No.:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Registration Mark:
Page 9 . 2 - 7
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 2)
1. Aeroplane l e v e l l i n q
1.1. L a t e r a l datum i s de termined by l e v e l l i n g p o i n t s go. 19 LX
and 1 9 RH / s e e F ig . 3 /
1 . 2 . L o g i t u d i n a l datum i s g iven by t h e f u s e l z g e datum I1
de te rmined by l e v e l l i n g p o i n t s L? No. 1 and 7 s e e F i q . !
whose p o s i t i o n s a r e s p e z i f i e d i n t h e tab12 on Page 8 .
I - L e v e l l i n g p l a n e / p a s s i n g through 1 .eve l l ing 2 o i n t s Xo . 3 , . 5 , 6 /
I1 - F u s e l q e datum / l i e s 10 mrn below t h e l e v e l l i n g p l ane /
I11 - Engine r i g g i n g f a c e t
Notes: - The v a l u e s i n t a b l e s f o r v e r t i c a l measurements r e f e r
t o t h e l e v e l l i n g p l a n e .
- The v a l n e s r e f e r r i n g t o l e v e l l i n g p o i n t s l y i n g below
t h e l e v e l l i n g p i a n e a r e ~ a r k e d x i t h , t h e s i g n "-". - The v a l u e s t o t h e l e f t 3.re marked w i t h t h e s i g n "-",
t o t h e r i g h t "+" / t h e LH and ?,H s i d e s a r e i d e n t i c a l
- s e e F i g . 2 .
Fig . 1
Page 9.2-8 Aug 31/95
LET L 410 UVP-E2O
M-AINTENANCE SCHEDULE
Example of Levelling and ~igging Record (page 3)
2 . Check o f w i n q tip f u e l t a n k s p o s i t i o n r e l a t i v e t o l e v e l l i n q
p l a n e - see F i q . 1
CAUTION: FOLLOVTING TABLE LDPLIZS FOR Z R O P L X T S a3C.M. 16th S E R I Z S - - - - - - - - - - - - - - -
WITH WING T I ? FUEL TAX'XS FROM ~ ~ R I A L ~ 5 . - 8 b 1 6 0 1 , - - -
Nominal Yeasurenent ? ! e a s u z e ~ e n ~ i Xeasuremenc ~1 ignment I ! SO. 1 go. 2 No. 3
Check o f w inq t i p f u e l t a n k a x i s a l i g n m e n t r e l d t i v s t o t h e
l e v e l l i n q p l a n e - see F i g . L
CAPTION: FDLLOWIXG TABLE- A P P L I Z S ?OR- m-ROPLl2;ZS - - - - F2CX - - 1 6 - t h S E X I Z S - - - -
WITH W I N G T I P FUEL TAMS FROM SERIAL No. 8 6 1 6 0 1 .
Aug 31/95
F r o n t l e v e l l i n g po i n c
Rear Leve l l ing p o i n t
Page 9 . 2 - 9
Diffe- rence
64 .78
64.78
Tole- r a n c e
210
210
Xeasurernent Yo. 1
LH!
Uezsurement So. 2
1
Xeasurement No. ?
Xd I
LET L 410 UVP-E20
M2lINTENANCE SCHEDULE
Example of ~evelling and ~igging Record (page 4)
4 . Check of wing t i p f u e l t anks p o s i t i o n r e l a t i v e t o t h e
a e r o p l a n e a x i s - s e e F i g . 2
CAUTION: FOLLOWING TABLE APPLIES FOR AEROPLANES FROM 1 6 t h SZRIZS
W I T H W I N G TIP FUEL TANKS FSOM SZZIXL No. 851601.
5. Check o f Aliqnment D /measured i n t h e ~ r o u e l l e r s h a f t a x i s /
Check of Alignment E /measured from p lane I1 t o III/ - - s e e F i g . 1
Nominal Xeasurement Yeasurement .Neasurement NO. 2 I N o . 3
r A 1 ignment
The d i f f e r e n c e between D and E must n o t exceed 3 nun.
The. a l i gnmen t t o be checked p r i o r t h e 3 r a n e l l e r i n s t a l l a t i o n .
Page 9.2-10
Yeasurement Xo. 3
Nominal value
Yeasurement !'a. 1
Tolerance Yeasurenent
Yo. 2
LET L 410 UVP-E20
-1NTENANCE SCHEDULE - -
Example of ~evelling and Rigging Record (page 5)
6. Check of fuse lage sag and ~ w i s t - see F i q . 1
7. Check of s t a t i c p r e s s u r s head ? o s i t i o n - see ?ig. 1
Nominal Ileasur-.=enc >!easur+3enc !-!easurenec h l ignmen t !lo. 2 90. 3
A u g 31/95 Page 9.2-11
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 6)
0 - 1 9 9 7 9 . 5 / t h e o r e t i c d imens ion/ - f o r a e r o p l a n e s w i t h
wing t i p f u e l t a n k s
I! - 1 9 4 7 8 . 9 / t h e o r e t i c d imens ion/ - for a e r o p l a n e s with
wing t i p s
Page 9.2-12 A u g 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 7)
8. Check of alignments F, G /measured in the propeller shaf' axis
- see F'icl. 2
L T L e r a n c e I :4e.asurcment / ueasurenent I ~easurezent / Yo. 1 Yo. 2 !lo. 3
The check of engine alignment to be carried out prior the propeller installation.
9 . Check of alignments A, B - see 'ig. 2
Subcript L = left hand, ? = right hand side.
r
Alignment
A
.\ - .$
B
BL - Bp
Page 9 . 2 - 1 3
Tolerance
Xax.difference 15
Xax.difference 15
7
. Yeasurement Yo. 3
- xi
ItY
LX
w
Xeasurement Y o , I
I
Measure3enc No. 2
LET L 410 W P - E 2 0
M.AINTENANCE SCHEDULE -
Example of Levelling and Rigging Record (page 8)
10. C h e c k of fuselage curvature - s e e F i c . 2
11. C h e c k of w i n g twist - see Fig. 3
,eve11 ing p o i n t s
ioninal !!easuremsnc Lfeasurernent Xeasurement Tolerance value Yo. 1 Yo. 2 ?To. 3
I mi + 4 . 20.25 -
I 5 3
ii 1 + 4 1 3 . 9 8 -
824 1 LII
+ 4 - 1 .oo -
Page 9.2-14 Aug 3 1 / 9 5
LET L 410 UVP-E20
I??LAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 9)
12. Check of s t a b i l i z e r t v i s z I?.< 2 i h e d r a l t o s e c g r s a 2.j a n g l e
o f i nc idence - s e e Pic. 3
Level 1 in: A 1 ignmen t po i n t s
23-24 lower
13. Check of s t a b i l i z e r ?oslz.:c?. z s l z t i v e ?o I ? v e l l i n g e l x e
Yominal Xeasurezent / :g cranc va lue
I I 2i 4 2 . 3 7 ' - 3
t o s e c u r e a 2" a n g l e oE inc l j ,ance - s e e ? i ~ . 2
>!easnrernent 3easurenent So. 2
1 1 !TO. 3
I
I
I Level1 ing A 1 ignnen t
p o i n t s
lower I 23
Yoninz, , ' / Xeasurezecx tl U e a s u r e ~ ~ ~ t !-feasurernenc
- a ; s i m c e i i ,- val ~e .do. i I Y O . 2 YO. 3
i
L . 1 i
. 2 8 . 7
A u g 31/95 Page 9.2-15
iH
I i
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 10)
F i g . 3
14. Check of aliqnment C - see Pig. 3
A 1 ignmen t
Page 9.2-16
Tolerance 0 1 i
VC?
Aug 31/95
I I
%..lax. difference 15 .,
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 11)
1 5 . Check o f winq p o s i t i o n r e l a t i v e t o t h e l e v e l l i n c p l a n e ,
a n g l e of d i h e d r a l - s e e T i c . 3
CAUTION: FOLLOWING TABLE A P P L I E S FOR AEROPLXUES FRCX 1 6 ~ 5 SZ?.IXS WITH WING T I P F C E L T.AN:<S ??.OM S E X I X L N O . 3 6 1 6 0 1 .
Xorninal To lz rance .easurement Ueasurmenc v a l u e ? r ~ a . } Oper. - - - - Yo. I Yo. 2 Yo. 3
Page 9.2-17 Aug 31 /95
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 12)
Values w i t h o u t i d e n t i f i c a t i o n a p p l y for l e v e l l i n g p o i n t s
11- - 2 0 o n a e r o p l a n e s w i t h o u t Wing tip f u e l t a n k s .
Va lues i d e n t i f i e d w i t h * a p p l y f o r l e v e l l i n g p o i n t s
11 - 2 0 on a e r o p l a n e s w i t h wing t i p f u e l t a n k s .
I d e n t i f y v a l u e s i n t h e t a b l e , measured on a e r o p l a n e w i t h
wing t i p f u e l t a n k s with * .
1 6 . Check of wing p o s i t i o n - see F i g . 3
1 7 . Check of l a n d i n g gear fmss su red i n &loaded c o n d i t i o n / - - -
- s e e F i g . 3
I
A1 i gnmen t
3
Page 9.2-18
Prod. = P r o d u c t i o n ; Oper. = Opera t i on
L e v e l l i n g p o i n t s
19-1 1
A1 ignment
Aug 3 1 / 9 5
Xorninal v a l u e
293'55 287.55*
9
YOminal v a l u e
T o l e r a . ~ c e
Tolerance 1 Xeasureaent Yo. 1
Yeasurenent No. 1
LX . xi
Prod.
+ 10 -
Xeasurement ?lo. 2 Oper.
2 28
Xeasurement Yo. 2
Xeasurement YO. 3
Yeasurement Xo. 3
U J i i
L 410 UVP-E20 m I N T E N A N C E SCHEDULE
Example of ~evelling and Rigging Record (page 13)
l a . Check of r u d d e r a n d r u d d e r t r i m tab def1ec:icns - s e e F i g . 4
XorninaL Tol_era_nce_
Xeasurezent !!easare~ent . X e a s u r e ~ e n c 11 ignmen t Angle v a l u e -
o 1 - - -YO? 7 - - - X O - 3 -
The v a l u e s of a n g l e s a r e s 3 e c i f i e d i n h c r l z c n t a l ?La?-=.
The v a l u e X = 2 5 - 2 . 5 mi 2 e a s u r s d on t he u g p e r Itf = end
of che ~ r L 3 tab. . . X = 25 - 3 . 9 m a 2 a s u r e d on =he - ? p e r r:q-r 2nd
of ~ 3 - e t r i n t 2b .
A u g 31/95 Page 9.2-19
LET L 410 UVP-E20
1 9 . Check of a i l e r o n and a i l e r o n t z i x t a b d e f l e c t i o n s
- s e e Fiq. 5
F i g . 5
MAINTENANCE SCHEDULE
Example of ~evelling and Rigging Record (page 14)
d
I V - Wing datum
-
1 / omi in all Toierance/ / ~ e r s u r e r ; e n t Yersurernent Yeasurcreo t A 1 ignment Angle value
0 . 1 No. 2 Xo. 3
S u b s c r i p t H = up, D = down.
Page 9.2-20 Aug 31/95
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 15)
2 0 . Chec!< of e l e v a t o r and e l e v a t o r t r i m t a b d e f l e c t i o n s - - see Fiq. 6
Fiq. 6
I1 = Fuselage datum
VI = Horizonta l s c a b i l i z e z datum
Xeasur+nent Xeasurement Xeasurernen ~ o l 2 r m c . j I No. I / 0 . 2 / Yo. 3 j
Subscript H = u p , D = EO:VT.
Page 9 . 2 - 2 1
2 1 . Nosewheel s t e e r i n g a n g l e - s e e f i g . 7
Y = manual mode
w = p e d a l mode
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 16)
F i g . 7
S u b s c r i p t L = l e f t h a n d , P = r i g h t hand s ide .
Page 9.2-22 Aug 31/95
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 17)
2 2 . Check o f o u t e r and i n n e r x i n g f l a p d e f l e c t i o n s
2 2 . 1 . F l a p s i n t a k e - o f f p o s i t i o n - s e e Pig. 8
- Angle 6 1 l s p e c i f i e s t n e t a k e - o f f p o s i t i o n o f o u t e r f l a p s
- Angle 6 s p e c i f i e s the t + k e - o f f ? o s i t i o r , o f i n n e r f k 3 s
Page 9 . 2 - 2 3
+ ,
Alignment
2 0 u4.d !4 c o u w o
U rV .I w w u - 4 Mu + 8 . - C a J I I O .2J* =.
F l a p p o s i - t i o n
6 1 1
12
Yominal v a l u e o f t h e a n g l e
18' 1 - - l o w-
- measured I .iEi
- 1 - 1 - - 1 - 1 -
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Example of Levelling and Rigging Record (page 18)
22.2. F l a p s i n l a n d i n g p o s i t i o n - s e e F ig . 9
- Angle 6 s p e c i f i e s t h e l a n d i n g p o s i t i o n of o u t e r f l a p s 2 1
- Angle 6 2 2 s p e c i f i e s t h e l a n d i n g p o s i t i o n of i n - e r f l a p s
- x/ Nominal v a l u e of a n g l e 6 2 2 e q u a l s v a l u e of r n g l e 6 2 1
obta,$ned d u r i n g measurements 30. ! / 2 , 3 / - lo0.
F i g . 9
Page 9 . 2 - 2 4 A u g 31/95
Alignment Tolerance Flap posi- tion
Xeasurement Zeasurenent No. 1 1 x 0 . 2
I
Nominal value o f angle
7
Xeasureaent No. 3
LET L 410 UVP-E20
MZkINTENANCE S C H E D U L E
Example of Levelling and Rigging Record (page 19)
Ueasurement Sfeasurement Ueasurement Xl i gnmen t NO. 1 No. 7 Yo. 3 I
Subscript L = left hand , 2 = - - --?:A- - - - s i d e .
Page 9 . 2 - 2 5
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Example of Levelling and ~igging Record (page 20)
2 4 . Check o f a u t o m a t i c bank c o n t r o l t a b d e f l e c t i o n - see P i g . 1 1
F i g . 11
S u b s c r i p t L = l e f t hand , P = r i g h t hand s i d e
C e r t i f i c a t e o f measurement c o r r e c t u e s s
Measurement Measurement I N 0 . i 1 N o . 2 N o . 3
Date
O r g a n i z a t i o n :
S i q n a t u r e o f t h e r e s p o n - s i b l e p e r s o n
Page 9.2-26 A u g 31/95
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
9.2.4. Operation check
9.2.4.1. List of products after replacement of which carry out the service test flight.
No. of subgroup PTP
Name of product and marking
M 601 E or M 601 E-21 Engine
Fuel regulator
Propeller
Propeller Speed regulator
Wing
Stabilizer
Fin
Elevator
Rudder
Ailerons
Wing flaps
Works after the execution of which it is necessary to carry out the service test flight
Replacement of one or both engines
Replacement of the regulator of one or both engines
Replacement of one or both propellers
Replacement of one or both propeller regulators
Replacement of wing
Replacement of stabilizer
Replacement of the fin
Replacement of elevator
Replacement of rudder
Replacement of one or both ailerons
Replacement of the inner or outer wing flap or slot
Operating test flight is performed as well as after exchange of every instrument whose setting or adjusting depends on the influence of aerodinamic forces in flight.
- Jul 15/99 Page 9.2-27
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
9.2.4.2. Proqram of operation check fliqhts
The program of the operation check flight includes the
recommended ways of the verification of the operation of
individual aircraft systems, indicated values and
properties during the flight. - - - - - - - - - - - -
The results o f - the check and their e~~luations should be
done in accordance with the Flight Manual of the
L 410 WP-E20 aeroplane.
CAUTION: ALL LIMITATIONS GIVEN IN THE FLIGHT MANUAL OF
THE L 410 WP-E20 AEROPLANE MUST BE KEPT DURING
THE CHECK FLIGHT.
I - I I P a g e 9 . 2 - 2 8 Aug 31/95
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Name of work (check)
WORK SET-UP Routine maintenance A,C
Engine test - - - - - - - - - - - -
Check of the automatic feathering and automatic bank control.
Test of the IELU
Filling-up with fuel for the check of fuel transfer from wing tip tanks
CHECK FLIGHT
Starting
Check of engine starting
Zheck of the IELU
Taxiing
Reason of check flight
Page 9 . 2 - 2 9
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of work (check)
t
13 Check of brake operation
14 Nose wheel manual steering check
15 "BETA RANGE" signalling check
16 Nose wheel pedal steering check during take-off
17 Check of engine and propeller performance during take-of f power setting
Landing gear and wing flaps retraction check
- Page 9.2-30
Reason of the check flight
Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of work (check)
Check of pedal steering control force during take-off
Altitude 2000 m ISA
Altitude 3000 m ISA
Altitude 3000 m ISA
Check of engine and propeller performance at Maximum Continuous power
Check of windscreen heating
Check of propeller deicing
Check of the airframe and engine deicing
Reason of the check flight
Page 9 . 2 - 3 1
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Name of work (check)
Check of operation and efficiency of heating in the cockpit and pasenger compartment
- - -
Check of oil- temperature increase with ice separator vanes in open position
Check of fuel crossfeed and fuel pumps switching-off
Check of engine operation at Maximum Continuous power and idle at v=200 km/h IAS
- - - - -
Check-of acceleration- -transfer of POWER control lever within 3 s
Page 9.2-32
Reason of the check flight
Aug 31/95
Lllr'L
L 410 UVP-E20 MAINTENANCE SCHEDULE
Name of work (check)
Descent
Check of the aeroplane ability to trim at idle -
- - - - -
Horizontal take-off
Verification of acceleration
In-flight engine starting check
Descent
Acceleration of the flight to V ,,=370 km/hr IAS. ~ g e c k of the response of the aeroplane in dependence on elevator control force
Reason of the check flight
Aug 31/95 Page 9 . 2 - 3 3 I
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Name of work (check)
Acceleration of the flight to ax =350 km/hr I A S
deck of the response of the aeroplane in dependence on elevator control force
Cruise
Check of ability to trim and control of the aircraft
3 4 Check of engine and propeller performan- ce at Maximum Continuous power
-
Page 9.2-34
3 6
37
Reason of the check flight
POWER control lever and PROP control lever setting check
Flight check
A u g 31/95
LET L 410 WP-E2O
PJILAINTENANCE SCHEDULE
Name of work (check)
Emergency fuel control circuit check-engine control
Radio navigation and communication equipment check
Check of stall characteristics in ind. flight configurations. Check of stall speed warning adjustment
Automatic feathering check, automatic bank control operation check. Adjustment of automatic feathering switches
Landing gear extension/retraction check at flight with one engine inoperative
Reason of the check flight
Page 9 . 2 - 3 5
LET L 410 WP-E20
MAINTENANCE S C H E D U L E
Name of work (check)
Check of operation of ILS, radio altimeter, audio switch box, special equipment
Check of - fuel transfer from wing tip tanks during the flight
Descent
Check of propeller minimum flight angle stop adjustment
Check of propeller operation at go/around
Check of emergency landing gear and
- - -
wing flaps- extension
Page 9.2-36
Reason of the check flight
Aug 31/95
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Reason of the check flight
Name of work (check)
Check of operation of automatic blocking of the win2 flaps extension and of the securing of landing gear
Landing
Ground spoiler operation check
BETA signalling and reverse range check
The brake antiskid operation check
Check of propeller unit operation during aborted take-of f
Work close-up
Routine maintenance B
Page 9 . 2 - 3 7
LET L 410 WP-E2O
MAINTENANCE SCHEDULE
Name of work (check)
Evaluation of the correct pera at ion of the BUR-1-2G flight recorder
Reason of the check flight
Page 9.2-38 A u g 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
9.2.4.3. Operation check fliqht methodics
The methodics of operation check flights must correspond
to the procesures and limitations given in the Flight
Manual of the L 410 UVP-E20 aeroplane. The metodic
instructions include only detailing and supplementing
regulations. The aeroplane must be completed and
equipped. The operator may according to his conditions
adjust or supplement the operation check flight. All
values found during the ground and flight tests should
be recorded in the final internal certificate.
WORK SET-UP
04. Filling-up with fuel for the fuel transfer check from the
wing tip tanks.
Fill-up the fuel in following amounts:
- main fuel tanks 400 kg left side
400 kg right side
- wing tip tanks 50 kg left side
50 kg right side
CHECK FLIGHTS
Carry out the check flights with the mass and centre of gravity
XT= 26% MAC
Page 9.2-39
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
The crew of the operation check flight is formed by 2 pilots and
expert workers securing the tasks given by the flight check. The
crew of the aircraft must have parachutes on board. With flights
above 3050 + - MSA the crew must use oxygen masks. The main technical data of M 601 E engines are speed nG%.
12. Check of the IELU (Integrated Electronic Limiter Unit)
12.1. In the course of starting the IELU must secure the
inter-turbine temperature gradient ITT in order not to
exceed the temperature values for starting. Follow the
increase of ITT.
12.2. Check of switching-on I level of limitation
- increase the speed of the gas generator by a slow
shifting of POWER control lever
- read the torque at which the signalling of the green
signal lamp goes on
- the value must be within limits 65 to 75% torque
17. Check of engine and propeller performance during take-off
power setting.
17.1. At the altitude of 500 m QFE record the value of the
maximum take-off power.
1 Page 9.2-40 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
20. Check of engine and propeller performance at Maximum
Continuous power.
20.1. Record the values at the altitude of 2000 m.
I
25. Check of oil temperature increase with ice separator vanes in I - - - - - - - - - - - - - - - - - - -
- - - - -
I open position. - - - - - - - - -
25.1. When reaching the altitude of 2000 m open the ice separator
vanes and close then at 4000 m. Check the temperature
increase of oil which must not exceed the max. operational
value.
I 26. Check of fuel crossfeed and fuel pumps switching-off
26.1. Carry out at the altitude of 4000-5000 m. ~uring this check - - - - the - signaf FUEL - PRESSURE- en the - central warning display
must not light.
27. Check of engine operation at Maximum Continuous power and
idle at V = 200 km/hr I A S
27.1. Record the values shown at the Maximum Continuous power at
the altitude of 5000 m and at idle at V = 200 km/IAS.
28. Check of acceleration - transfer of POWER control lever - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - -
within 3 sec
28.1. Check the acceleration at a slow - at least 3 sec- transfer of POWER control lever at the altitude of 5000 m and
V = 200 km/hhr IAS. - Aug 31/95 Page 9.2-41
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
29. Check of the aeroplane ability to trim at idle
29.1. When descending from the altitude of 5000 m down to 4000 m
at idle engine power setting trim the aircraft to the max.
value TAIL-HEAVY.
The cruising speed must be 190 km/hr to 165 km/hr.
30. Verification of acceleration
30.1. Check the acceleration in the altitude of 4000 m
- verification of acceleration from idle, continuation of
run
- verification with switched-off fuel pumps; shifting of
POWER control levers in min. 3 sec
- verification of acceleration and time check max. 5 sec
from the initial rating for acceleration, i.e. 75% nG to
95% of max. take-off power at V = 200 km/hr. Shifting of
POWER control levers in 1 second.
31. In-flight engine starting check
31.1. Carry out at the altitude of 4000 m the following:
- carry out the procedure for manual feathering of
propeller
- engine shut-down
- starting the engine
-
Page 9.2-42 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Evaluate :
- starting time of ignition up to max. 12 sec. - course of starting - reached max. ITT temperature - time necessary for setting the propeller out of feathered position
32. Acceleration of aircraft to Vma,=370 km/hr IAS
Check of the response of the aeroplane in dependence on
elevator control force.
32.1. Verify:
The evaluation of the elevator control force in dependence
on cruising speed and the evaluation of the total aeroplane
and engine response.
- height balancing (trim) - neutral - engine power torque 80%, n -1800 RPM
prop- - permissible force max 10-20 N (1-2 kp)
33. Flight acceleration to Vmax=350 km/hr IAS. Check of the
response of the aeroplane in dependence on elevator control
force
33.1. The evalution of the dependence of the elevator control
force on the speed. The process is the same as item 32,
however, with reaching the speed Vma,=350 km/hr IAS.
Allowable force max. 10 N to 20 N (1 kp to 2 kp).
Page 9.2-43
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
36. POWER control lever and PROP control lever setting check
36.1. Adjust the control levers in such a way that the difference
between them at the lever ends is max. 4 nun.
37. Flight check of propellers - - - - - - - - - - - - - - - - - - -
37.1. Carry out the check of the propeller operation and data in
accordance with the program of acceptation flight test of
the V 510 propeller given in the item 9.2.4.4.
39. Radio navigation and communication equipment check
39.1. Carry out in accordance with the regulations for the
built-in devices in the aircraft and with the Flight Manual
of the L 410 UVP-E20 aeroplane following the programm: - - - - - - - - - -
- - - - - - - - ~ ~
- - - - - - -
VHF Transceiver:
- check of the 2-way communication in a distance min 120 km at the altitude min. of 1000 m above the level of the
ground station at direct radio visibility
- check of interference during flight
Radiocompass:
- check of operation and bearing accuracy to ground NDB
beacon in a distanceof180 km atthe altitude of 1000 m - - - - - - - - - - -
above the ground NDB beacon (f -400 kHz)
- check of instability zone when flying over NDB
- Page 9.2-44 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Course system:
- liquid compass. When checking the deviation switch off
the wiper and fan
Navigation instruments:
- check of gyro horizon operation in all flight power
settings
- check and record of signalling values of limit banks.
Wing flaps o0 and 18O - check of the operation of turn-and-bank indicators in
all flights power settings
- check of operation and comparison of barometric
instruments in all flight power settings.
40. Check of stall characteristics in individual flight
configurations. Check of stall speed warning adjustment.
40.1. Flight configurations:
- engine idle power, landing gear retracted, wing flaps o0 - engine idle power, landing gear retracted, wing flaps
18O
- engine idle power, landing gear extended, wing flaps 42'
- nv=1800 RPM, torque = 41%, landing gear retracted, wing
flaps o0
Switch on signallization and carry out stall in the above
mentioned configurations. The signal of the stalling speed must
be adjusted so that it starts signalling at least at 15 km/hr
before the stalling speed.
Page 9.2-45
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Stalling speeds - engine idle power
o0 - cruising 18O - take-off 42O - landing
Position of wing flaps:
41. Automatic feathering and automatic bank control operation
check
Stalling speed IAS (km/hr)
Adjustment of automatic feathering switches.
41.1. Imitate the failure with the PROP. FEATHERING-AUTO
push-button on the LH control panel and move the POWER
control lever to the idle-power position.
Set the POWER control lever so that the signalling of
automatic bank control and automatic feathering starts to
function. Revolutions nG at least 88 + - 1% or 92 + - 1% (difference between switching-on and off max. 4% nG). Set
the flight speed close below 200 km/hr. Imitate the
failure.
Check:
Check of the rudder trim tab efficiency (check of bank for
the straight forward flight with the max. trim tab
deflection with the max. take-off engine power and
V=200 km/hr IAS with a balanced flight).
Increase the flight speed and check the retraction of the
ABC tab at 205 + - 5 km/hr IAS.
I - I I Page 9.2-46 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
43. Check of operation of ILS, radio altimeter audio switch box
and special equipment
43.1. ILS
- check of range. At least 48 km with the course receiver
in the balancing field of the ground beacon, at least
18,5 km with the descending receiver in the balancing
field of the ground beacon.
- check of accuracy of the guiding along the course and
slip. Visually or with PAR till the operation minima.
- check of the light and acoustic signalling of light
markers 75 MHz Marker. At an altitude of 600 m above the
approach marker. Signalling time 4 s at least.
43.2. Radio altimeter
- check and record of data in the working band of
altitudes 500 m, 300 m, 100 m, QFE (under VMC
conditions) above the airfield. Compare with the
electromechanical altimeter or barometric altimeter set
to QFE of the airfield
- check of the acoustic and light signalling at the
altitude of 60 m QFE above the airfield runway under VMC
conditions.
43.3. Special equipment
Check the operation of the BUR-1-2G flight recorder.
Page 9 .2 -47
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
44. Check of fuel transfer from wing tip fuel tanks during the
flight
44.1 . Carry out at horizontal flight at about 300 km/hr IAS,
altitude 1500 to 2000 m. Switching-on green signal window
of fuel pumping must occur in the range of 4 0 0 to 2 7 0 kg
indicated on the indicators. The data on the scales must be
simultaneous. After completing the fuel transfer the signal
windows go off (not necessarily at the same time).
-
Page 9 .2 -48 Aug 31/95
LET L 410 WP-E20
MAINTENANCE SCHEDULE
9.2.4.4. Program of acceptance flight test of V 5 1 0 propeller
Power setting
Engine test
a/ Check of the propeller speed limiter without the closing nut of the limiter and front part of the propeller cock. -propeller control lever in position nvmax. -increase the generator speed by means of POWER control lever till the intervention of the limiter,further on increase nG still more by 2 % and then back to idle power -repeat five times on both units
b/ Check of deicing of propeller blades
To be checked
-in the 3rd to 5th transition n = 2 0 0 0 RPM
P
- Aug 3 1 / 9 5 Page 9 . 2 - 4 9
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Power setting
I -propeller control lever in
I position n -enqine congrof lever at take- / -off power setting.
-altitude 1000 m QFE/FL 2000 m 3000 m
-v = 230 km/h -P@L in position nv = 1900 l/min -set the ELC to n = 97 % , lock both the levers.
ICruise and speed chanqe
(by pushing and pulling control column). -altitude 3000 to 2500 m -v = 300 + 40 km/hr - P ~ L in position n = 1800 l/min -set engine controy lever n = 94 % to 97 % g
Chanqe of speed of propeller control lever (PCL)
-altitude 3000 to 2500 m -v = 300 + 40 km/h -sRift PCL fluently from max. speed nv = 2080 to 1700 l/min and back -set ELC to n = 94 %
g
Page 9.2-50
To be checked
After reaching the speed of 150 km/h IAS the permissible values are as follows: -nV = 2080+20 l/min -difference of RPM left right hand side max. 20 RPM. -rotation overspeed is max. 2120+20 RPM
-speed shall be in tolerance range of + 15 RPM.
-in steady cruise speed n, = 1800 2 10 l/min -at change of speed n, = + 30 l/min.
-propeller speed in course of loading and unloading shall be in compliance witk movement of PCL -rea
Aug 31/95
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Power setting
Power chanqe
-altitude 3000 to 2500 m -v = 300 km/h - P ~ L in position n, = 1800 l/min -shift ECL from n = 97 % to idle power and back wythin 10 s.
I Propeller f eatherinq a/ Automatic feathering
-altitude 3000 to 1500 m -v = 190 km/h - P ~ L in position nv max.
Preparation of feathering -perform in accordance with the Flight Manual L410 UVP-E20 aircraft
After propeller has been feathered (L.H.)-(R.H.) -v = 300 to 200 km/h iR horizontal, straight flight without slips.
Propeller setting out of feathered position and setting of flight mode -perform in accordance with the Flight Manunal L 410 UVP-E20 aircraft .
b/ Manual feathering: -altitude 4000 to 1500 m -v = 250 km/h - P ~ L in position np max.
Preparation for feathering -perform in compliance with the Flight Manual L410 UVP-E2C
To be checked
-till steady state (n = 1800 l/min) max. 3 ovgrshoots from the nominal value with tolerance + 30 l/min are permissible. -
-feathering time 5 s -signal cells on CWD are on
- np = max. 20 l/min in clockwise direction
- setting propeller out of feathered position
- time necessary for settins to the feather within 5 s
- cells on the CWD will be on.
Aug 31/95 Page 9.2-51
LET L 410 UVP-E20
M2iINTENANCE S C H E D U L E
Power setting
After propeller feathering (L.H.)-(R.H.) -v = 300 to 200 km/h hgrizontal ,straight flight without slips
Setting the propeller out of feathered position and setting
- - - - - - -
t h e flight mode -perform according to the Flight Manual for L410 UVP-E20 aircraft.
c / Emergency feathering -altitude 4000 to 1500 m -v = 300 km/h - P ~ L in position nv max.
Feathering -perform according to the Flight Manual for L410 UVP-E20 aircraft.
After propeller feathering (L.H.)-(R.H.) -v = 3-00 t o 2-00 km/h i-n hBrizantal, straight flight without any slips.
Propeller setting out of feathered position and flight mode setting -perform according to the Flight Manual for L410 WP-E20 aircraft.
Check of deicinq
-altitude 100 m QFE to FL 5000m -v = 190 to 350 km/h - P ~ L in position nv = 2080 to 1700 l/min - -
'switch -gradually the switch PROP DEICING STBY MAIN into positions I and I1 (interval I is 40 sfinterval I1 is 80 s) for the main and standby timer circuit, -perform check on each timer for 2 minutes.
Page 9 .2 -52
To be checked
- - --
- ny = 20 l/min in clockwise direction
- setting propeller out - - of feathered position
- time for setting to feathered position max. 20 s
- = max. 50 l/min in c " Y ockwlse . - direction
- setting the propeller out of feathered position.
- after firts cycle the cell PROPELLER DEICING on CWD goes off.
- - - - - - - - - ~ ~ ~ ~ ~
Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Power setting
Check of fine pitch stop
Initial condition for both engines -altitude 1500 to 1200 m -PCL in position corresponding
= 2080 + 20 l/min -set CL to n = 95 % , then decrease sli3htly generator speed of appropriate unit.
Aborted Landinq
-altitude 500 m QFE -v = 180 km/h -&t PCL to position n max. -set ECL from flight i h e power rating to max. take off power within 1 to 2 s.
Reverse
-v = max. 140 km/h -mgve PCL to position nv max. -ECL in position idle power, after touching set the lever to max. reversion, after stopping set it back.
To be checked
- propeller operates as fixed-pitch propeller. The moment propeller speed dree will drop below the controllable speed,read
and indicated airspeed.
- max. 3 overshoots (nv = max.2200 l/min) from nominal value with tolerance + 10 l/min are permissible till reaching the steady condition. Total time to stabiliza- tion is max. 6 s.
- signal cell "BETA RANGEN wiil be on after the first transition phase of ECL (with increase in genera- tor speed the propeller speed will rise on n max. = 1900 l/min.
- pgrmissible difference between propeller speeds is max. 10 l/min. at maximum reverse mode,
- idle speed after reverse Compare the idle speed with speed before take off.
Page 9.2-53
LET L 410 W P - E 2 O
MAINTENANCE SCHEDULE
Power setting
lborted take-of f
-take off run on a speed of v = 140 km/h at a height of oPm QFE -set PCL to position n max. -set ECL to take off pBwer position -then shift ECL smoothly with a max. rate to the stop of the conpled linhage and further on into the position max. reverse (within 2 s)
-after stopping shift ECL in front of idle power stop.
Jheck of propeller unit tiqhtness
-after acceptance flight
To be checked
- propellers speed shall not exceed value ny = 2080 l/min
- signal cell "BETA RANGE" will be on
- at v = 0 km/h(standstill) n, =Pmax. 1900 l/min.
- slgnal cell "BETA RANGEw will be of
- compare idle speed n with the speed before takg off.
- in according to VJ8.510
The given technical data must be maintained when testing the 9ropeller unit in flight. At service follow the Flight Manual L 410 UVP-E20 aircraft.
Page 9.2-54 Aug 31/95
LET L 410 UVP-E20
MJ i INTENANCE S C H E D U L E
May 15/98 Page 9.3-1
-
No.
-
3.
4.
5.
-
Name
Engine oil
Oil
Oil
Specification
(CR)
MK- 8
GOST 6457-66
Specification
(CIS)
Specification
(western)
b) Aeroshell
Turbine OIL 500
(555,560)
MIL-L 23699 D
(USA
DERD. 2499
(GB)
c) Mobile
JET Oil I1
MIL-L 23699 D
(USA
Exxon Turbo oil
2380,
Castrol 599.
Aeroshell
Turboil 3
DERD 2490,
Shell Oil
Ensis L,
Shell Storage
Oil 3.
Aeroshell
Compoud
MIL-G-16173A
Note
Mutual mixing
of oils groups
(a,b,c) is not
permitted
Application-
-stated in
Supplement 9.1
Application-
-stated in
Supplement 9.1
No.
-
6.
7.
Name
Oil
Zrease
Specification
(CR
CIATIM 201
ZOST 6267-74
Specification
(CIS)
CIATIM 201
GOST 2267-74
Specification
(western)
Aeroshell
Fluid 12
MIL-L6085A
ESSO Univis P12
MIL-L-6085 A
Aeroshell
Grease 6
MIL-G-7711 A
Aeroshell
Grease 22 or
22 c,
Mobil Grease 28
Braycote 622,
Nycogrease 22
MIL-G-81322.
Isoflex LD 318
special A.
Equivalent
specification:
DEF.STAN 91-51
(GB)
AIR 4222
( France )
NT-10006
(USA)
G-382
(NATO)
Note
Application-
-stated in
Supplement 9.1
Application-
-stated in
Supplement 9.1
MAINTENANCE SCHEDULE
Page 9.3-4 Jan 12/02
L 410 UVP-E20 Mi4INTENANCE S C H E D U L E
C: 0 -4 4J a U - -4 P: 't! U -4 - U a, a cn
B a z
d z
Jan 12/02 Page 9 . 3 - 5
C 0 -4 4J la- u m -4 H '44 U -4 - 0 Q) a V1
LETECKE ZAVODY a.s. L 410 UVP-E20
M ~ L I N T E N A N C E SCHEDULE
Page 9.3-6 Jan 12/02 R
LETECKE ZAVODY a.s. L 410 UVP-E2O
MAINTENANCE SCHEDULE
> 5. - -
-I+ -4 -I+ a, U
C U k U k C C k C 4J tr -4
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Jan 12/02 R Page 9.3-7
LETECKE ZAVODY a.s. L 410 UVP-E20
M-AINTENANCE SCHEDULE
Page 9.3-8 Jan 12/02 R
LET L 410 WP-E20
MAINTENANCE SCHEDULE
9.5 List of sealed items
S e r . No.
1
2
3
4
Component
"FIRE EXT." push-button =overs.
"EMERGENCY LANDING GEAR AND FLAP CONTROL" manual valve.
Emergency static pressure m d total pressure instrument supply valve.
Maximum contingency power stop.
Location
pilot's cockpit.
In pilotls cockpit - right control panel.
In pilot's cockpit - left control panel.
pilot s cockpit.
Page 9.5-1
LET L 410 WP-E2O
MAINTENANCE SCHEDULE
Intentionally left blank.
- Page 9.5-2 Aug 31/95
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
I 9.6. List of adjustable items whose adjustment durins service is
I I prohibited
All instruments and major components on engines, propellers
fuel system, hydraulic system and electric and avionic
equipment which are provided with the seal of the
manufacturer may be adjusted only by the representatives of - - - - - - - -
the manufacturer or persons authorised for the adjustment-by
the manufacturer.
I NOTE: Permitted adjustment of the LUN 6590.05-8 control
I I unit see MM of the M 601 E or M 601 E-21 engine,
I para 73.21.00, page 501.
The following components of the M 601 E or M 601 E-21 engine
may be replaced only by the persons trained by the
manufacturer:
- Compressor-relief- valve and fue-l metering nozzles - Accessory drive shaft packings - Engine controls - LUN 3280-8 automatic feathering pressure switch
- Fire seals - LUN 1540-8 torque transducer/transmitter
- LUN 1539.02-8 torque indicator
- LUN 1476-8 torque limiter transducer/transmitter
Page 9.6-1
LET L 410 UVP-E2O
MAINTENANCE SCHEDULE
Intentionally left blank.
- Page 9.6-2 Aug 31/95
LETECKE ZAVODY a.s. L 410 UVP-E20
JXE%INTENANCE SCHEDULE
9.7. Operation of instruments and major components
Comments on the following tabelar listing:
9.7.1. Data are given in flight hours and years except for such
cases where another value marking is stated (e.g. number
of landings). When the values are given in flight hours
and years or in the number of landings, always such value
is valid which elapses earlier.
9.7.2. The beginning of the operation time of the aircraft
including the instruments and major components is taken
from the date of acceptance by the customer stated in the
aircraft log book, exept for
- the PPL (8) fire extinguisher whose TBO is counted since its production date (or testing)
- fuel rubber tanks (chapter 028, item No. 27-30) whose
service life is counted since its date of manufacture.
9.7.3. The dash in the column llTBO, hours, yearsv1 means that
these items are not subject to overhaul.
9.7.4. The dash in the column llService life hours-yearsf1 means
that the service life is not limited by flight hours or
years.
9.7.5. Data given in the column llTBO1' mean the time till the 1st
overhaul and also the intervals (times) between further
overhau1s.A tolerance of + 5 % is applicable to the indi-
cated vdlues ,except for the TBO of the engines aid prope- llers.
9.7.6. The changes of the TBOs and of the service lives of
instruments and major components of CR manufacture
are given by bulletins.
Jan 12/02 Page 9.7-1
LETECKE ZAVODY a.s. L 410 WP-E20
JXAINTENANCE SCHEDULE
9 . 7 . 7 . For products of a limited TBO (or service life) are the
work procedures for their replacement given in the
respective chapter of the Maintenance Manual.
9.7.8. The operation of instruments and major components as per
their technical condition is given in the table by the
abbreviation Iton conditionn. The serviceability is
evaluated either in the aircraft or in the laboratory (see
Chapter 4) according to the technical data given in'the
Maintenace Manual.
In case of not complying with the technical requirements,
the instrument or major component is dispatched for the
repair.
1 9 . 7 . 9 . Hose service life for hose manufactured of PND material
given in Chapter 000 of Maintenance Schedule is increased
to 15 years since the date of hose manufacture,of which 10
years of operation in the airplane. Hose service life is
given by time since the date of hose manufacture or by time
of operation in the airplane depend on which time expires
first.
The hoses must not be stored by the operator for more than
2 years. If their storage life is exceeded the hose must
be rejected.
Example of hose markinq
11.93 125 X.93
Hose manufacture Certificate Date of date number installation
in the aircraft
Page 9.7-2 Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Maximum storability of the hoses manufactured of AE 303 material with fittings is 2 years - calculated from the date of production of the hoses material (a date is given on a hose). The hoses with fittings must be installed on the aircraft not later than the storability is expired and they must be used in operation for max.5 years without consideration the storability is used or is not used. If the hoses are installed later than after 2 years then the operational period is shortened by the period of delay of the installation on the aircraft. The operational period is calculated from the date of hoses installation on the aircraft.
The AEROQUIP teflon hoses with unlimited service life can be used on the airplane, ie. dashes are mentioned in the section 000 of this MS and in columns TBO-Hours-Yrs and " Service life-Hours-Yrs " (see item 9.7.3 and 9 . 7 . 4 ) .
Comme,nts on the data in tables
Validity is given-from the series
Pcs set
from the prod. No. of aircraft
number of pcs for 1 aircraft number of sets
e.g. from the 18th series
The maintenance of instruments 'Ion conditionn is given in the Maintenance Schedula - periodic maintenace.
The service life of the instrument marked Iton ~ondition'~ expires in case of such a defect, repair of which is not economical any more.
If another data for maintenance, TBO and service life for products of CR are given in this Maintenan~e~Schedule than in the product's certificate, the data 'stated in this Maintenance Schedule are valid.
Jan 12/02 Page 9.7-3
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
- a, 'ti 4 Gl
4J 'ti (d k U k -4 A
Jan 12/02 Page 9.7-4
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
N U) m m U) LO F P 0 rl 0 rl rl rl rl rl m k m m k m m k m m k m
0 0 0 0
Jan 12/02 Page 9.7-5
LETECKE ZAVODY a.s. L 410 UVP-E20
MZLINTENANCE SCHEDULE
Jan 12/02 Page 9.7-6
LETECKE ZAVODY a.s. L 410 WP-E20
MAINTENANCE SCHEDULE
Jan 12/02 Page 9.7-7
Page 9.7-8
LETECKE ZAVODY a.s . L 410 WP-E2O
JYUXINTENANCE SCHEDULE
u7 10 CV I0 d'd ' rl I+
(U o r k r U3 rl k m o m d ' d ' 0 u7 m
tsl m - m m . .
,-&v)- - ~. ~ ~ ~
a x r x + N a a
x trl
m ID d 'd '
CV 0 U 3 d k d 'd ' 0 J . . a ^ m u a x r
X m m e I
Jan 12/02
-
No.
Name of Unit
z)
hoses of
hydraulic
system
(continued)
Effect.
Type /Dwg. No./
Time Limits
TBO
Hours
Service Life
Yrs
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
u r( d' 0 b N Kl LO U) m a U) U) m U) d' U) rl rl m e r( 4 m rl
b b m 0 b b r. b k u k m iD rl k l o k l n m k u l o u l o m d ' d ' o m o m m o m
J
Page 9.7-10
-
Jan 12/02
LETECKE ZAVODY a . s . L 4 1 0 UVP-E20
M A I N T E N A N C E SCHEDULE
m S ~n co N m U) COO- rl rl
rl In m * * k b k P U ) m o I n o m W d J _ u7 In
b b m k m m o m
4J 0 al ccl ccl W
Jan 1 2 / 0 2 Page 9.7-11
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
m n o x P . . ~r a ~ r r n n x * n ~r LC P * x x x 0 m Pr4 P P 0r l l
X 0
x cn
rl- ' r i rl rl- rl rl
Page 9.7-12 Jan 12/02
Name of Unit
c) hoses of
hydraulic
system
(continued)
Effect.
Type /Dwg. No./
25HF B 463 979 N
(25HF L 410 WP.
.4670-244)
(without weather
radar installa-
tion)
Time Limits
TBO
Hours
Yrs
Service Life
Hours
Yrs
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
0 I i-i
Z 0 al m o
rl- m d'o u m . 4 * d m 0
I k - - -
m G a c X 0 ErQa 0
X r- Fr Er h rl Fr Er Er u
X .rl a -4 X X X N d ' x X X a d ' m 3 k u m V) m m m N N N d ' N U N N m u . m m e -
Page 9.7-14 Jan 12/02
LETECKB ZAVODY a . s . L 410 UVP-E20
-1NTENANCE SCHEDULE
Jan 12/02 Page 9.7-15
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-16 Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Jan 12/02 Page 9.7-17
Page 9.7-18
LETECKE ZAVODY a.s . L 410 UVP-E20
MAINTENANCE SCHEDULE
Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
P P m k m m o m
Jan 12/02 Page 9.7-19
LETECKE ZAVODY a.s. L 410 UVP-E20
lXLRINTENANCE SCHEDULE
Page 9.7-20 Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Jan 12/02 Page 9.7-21
LETECKE ZAVODY a .s . L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-22 Jan 12/02
MAINTENANCE SCHEDULE
Okla aa U I a.rl
Jan 12/02 R Page 9.7-23
LETECKE ZAVODY a.s. L 410 UVP-E2O
MAINTENANCE SCHEDULE
Page 9.7-24 Jan 12/02 R
LETECKE ZAVODY a.s. L 4 1 0 W P - E 2 0
MAINTENANCE S C H E D U L E
Jan 1 2 / 0 2 Page 9 . 7 - 2 5
LETECKE ZAVODY a.s. L 410 UVP-E2O
MAINTENANCE SCHEDULE
5 . d a,
rn E: a, 0 E: E 0 PC 2 0 Ptk k U a -4 W E
Paue 9.7-26 Jan 12/02 R
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Err x W
3u W
0 I
w' r'l rl m N cn rl
Q) C, C U
k n U-4 c, a a - d C x -4 aa, 0 5 o Q) &TI A C
3 > k
m 0 TI 0 U a U Q ) rl C a ac , .ria o PI -rl m ~ l k LI o c, C A 0 4 k k
0.4 U U C U Q) U O Q ) 0 -4 C 4'44 O k U r, H 0 -4 h h h
3 - a n u a
k - Q) a S Q) -4 rl Q) rl U a Ul c, C m a C k -4 E-r
'44 Err -d X u
Jan 12/02 Page 9.7-27
LETECKE ZAVODY a.s. L 4 1 0 WP-E2O
MAINTENANCE SCHEDULE
C T I tn
.rl k 0
k m - A 0) I a O W C 0 - r l 3 Id-
m $ E
-rl
$ . rl w
Page 9 .7 -28 J a n 1 2 / 0 2
0) ccr -4 GI
0) U
-rl
L 0) M
G I -
0 m w
LETECKE ZAVODY a .s . L 410 UVP-E20
MAINTENANCE SCHEDULE
k 0
rl 0
P P d'd' rl rl CV CV
z z 5 3 4 GI
a, a, I I
m d' a, 0 0
1 . . 0 m m U) d'd' d' P P CV CV CV
k 0 a, I
0 0 m m d'd' CV CV
z z 3 3 4 GI
Jan 12/02 Page 9.7-29
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
c, 0 a ccl ccl 4 1
ccl 0
fd 0 eel -4 c, C
,-I r( fd
a fd -4 k Cc, c,h h C, k Q I kC, Q f d C 04: a,a, Q d 7 U 0 4Jcc-l -4 a, A X O Cfd Clk V] W U I H t n
1 Page 9.7-30 Jan 12/02
LETECKE ZAVODY a . s . L 4 1 0 UVP-E20
I?/LAINTENANCE S C H E D U L E
I e l I
Jan 12/02 R Page 9.7-31
Sh
ap
ter
N
o.
-
22
.
23
.
24
.
25
.
26.
27
.
28
.
Na
me
o
f U
ni
t
Ef
fe
ct
. T
yp
e /D
wg.
N
o./
N
In
st
ru
me
nt
s u
sed
a
lso
in
oth
er
ch
ap
ters
:
Ci
rc
ui
t b
rea
ke
rs
Co
nt
ac
to
r
Co
nt
ac
to
r
Co
nt
ac
to
r
Co
nt
ac
to
r
Co
nt
ac
to
r
Co
nt
ac
to
r
AZ
RG
K
+ A
ZR
rKD
1
03
DO
D
or
I'KD
1
03
OD
L
FKD
5
01
DO
D
rKD
5
11
DO
D
rKS
2
01
DO
D
rKS
4
01
DO
D
rKD
1
33
DO
D
or
I'K
D
13
3 O
DL
Tim
e L
im
it
s
TB
O
Ho
urs
Y
rs
Se
rv
ic
e L
ife
Ho
ur
s
Or
ig
in
CI
S
CIS
CIS
CIS
CI
S
CI
S
CI
S
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Jan 12/02 R Page 9.7-33
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
rl f'a m
Page 9.7-34 Jan 12/02 R
No.
-
1.
2.
3.
4.
Name of Unit
Fire protection
Fire extinguisher
bottle
a) Bottle
b) Discharge head
c) Pressure
gauge
d) Pyrocartridge
Fire extinguisher
Smoke detector
Pregsure gauge
Effect. Type /Dwg. No./
PPL (8)
(Dwg. No.
B 067 300 N)
72-6600-20
B 067 308 N
MA16K(from 19th
series modify as
per Dwg.
No. B 580 758 N)
Time Limits
TBO
Hours Yrs
condition
- -
- -
on
condition
I on
condition
Service
Hours
on
conditi
20 000
-
on -
Life
Yrs
condition
Origin
CR
CR
CR
CR
CIS
CIS
G U-l W
Page 9.7-36
LETECKE ZAVODY a .s . L 410 W P - E 2 0
MAINTENANCE SCHEDULE
4J 4J rl rl r l a rl m m ri a rl rl ri rl
m rl rl m
nj I l P l r n
H cn PI m c n a
k 0 4J r d k -4 0 U 4J C U
a 5 a k C 4 J -4 C a lcl rda
h
U
Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
I0 N I0 TP ( V a l ( V m 0 0 0 0
Jan 12/02 Page 9.7-37
MAINTENANCE SCHEDULE
4J G4J I O U 40rCr
Page 9.7-38 Jan 12/02 R
LETECKE ZAVODY a . s . L 410 UVP-E20
M2lINTENANCE S C H E D U L E
b - 0 r l w o w z Tr
u C1 -ZU3 z
Jan 12/02 Page 9.7-39
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-40 Jan 12/02 R
Chapter No.
-
1.
2.
3.
4.
5.
6.
7.
8.
-
Name of Unit
Fuel
Pressure switch
Wing tip tank
(if installed)
Three-pointer
indicator
Fuel gauge
indicator
Wing tip tank
fuel gauge
Fuel gauge
transmitter
Fuel gauge
transmitter
Fuel gauge
transmitter
Effect. Type /Dwg. No./
0.012
K
LUN 1492.01-8
B 562 600 L,P
LUN 1538.XX-8
LUN 1634.01-8
LUN 1674-8
LUN 1635-8
LUN 1636.01-8
LUN 1637-8
Time Limits
TBO
Hours Yrs
Service Life
Hours
20 000
on
conditi
10 000
8 000
6 000
10 000
10 000
10 000
Yrs
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
a, u m -d k
5 z 0 a, X (I]
Page 9.7-42 Jan 12/02 R
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
? 5 $ rl rl rl -4 -4 -4
k '4.4 w w k C C C a, rl 0
2 k k C, X X X a) C, 5 s rl C C C
c, 4J c, -4 (d a (d (U -4 > (d
a, a, a, w c, c, c, rl 0 k k k k k k C I I I rl r l a , rl a, r l a , ? r l 5 C C C 3 a , ?
5 0 a, C
0 0 0 5 0 5 0 z Z Z F F 0 F 0 F 0 F a a , S 5 C
P w m 0 rl N m d' rl rl rl N N N N N
Jan 12/02 R Page 9.7-43
Page 9.7-44
MAINTENANCE SCHEDULE
8 8 8 E U
Jan 12/02 R
M2%INTENANCE SCHEDULE
Jan 12/02 R Page 9 .7 -45
Page 9.7-46
LETECKE ZAVODY a.s. L 410 UVP-E20
P&%INTENANCE SCHEDULE
Jan 12/02 R
MAINTENANCE SCHEDULE
Jan 12/02 R Page 9.7-47
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-48 Jan 12/02 R
L 410 UVP-E20 MAINTENANCE SCHEDULE
rl rl -4 rl k rd
5 W C -4 C a,
0 c, D
' H O a, -4 -4 a, c, a, k c , C c, 3 -2 k 3 U 0 0 3 m a, m rn m m C c, C m m a,
U C a,C 3 0 Q) rd k 0 k k k PI U rn 0 PI c, PI
b a) cn 0 4 N r'l rl rl rl rl N CV N N
Jan 12/02 R Page 9.7-49
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
MAINTENANCE SCHEDULE
N r l 0
m m m C n r l G l r l r l o r l N m o m m
Jan 12/02 R Page 9.7-51
LETECKE ZAVODY a .s . L 410 UVP-E20
MAINTENANCE SCHEDULE
P a g e 9.7-52 Jan 12/02 R
LETECKE ZAVODY a.s. L 410 UVP-E2O
MJlINTENANCE SCHEDULE
cll
8 H U
rl - a 0
- o \ o co o m CI
pzlo co w
0 rl * ( V
m mco FU) m S LO & S O I
b n w n m w m m -a cll
m .", -4
Jan 12/02 R Page 9.7-53
C C C F: C 0- 0- 0- 0 0 -4 -4 -4 -4 -4
U +J C, 4J 4J 4J .4 -4 -4 -4 -4 -4
?! o a a a a a I
C C C G F: E O X I- o C 0 C 0 C 0 C 0 C 0
(V cll 0 0 0 U 0 U 0 U 0 0
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-54 Jan 12/02 R
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
N f'l Ln CJ
Jan 12/02 R Page 9.7-55
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-56 Jan 12/02 R
LETECKE ZAVODY a.s. L 410 UVP-E2O
MAINTENANCE SCHEDULE
Jan 12/02 R Page 9.7-57
Page 9.7-58
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
-4 -4 u 0 4J 0 -4
a g a , 0
k k C a 0 4J 4J C u m
0 C 0 Pa
U C C 0 U
- - - - - - - - - - a-rf 0 - - - - - -
- - - - - -
- - - - -
a-rf m 34J E: LI m - r l
Jan 12/02
LETECKE ZAVODY a.s. L 410 UVP-E20
M.AINTENANCE SCHEDULE
C U - cr a -d a,
$ z rd
a, c, k m 1 C m -d m
@ + I k -4 PI-
Jan 12/02 R Page 9.7-59
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-60 Jan 12/02 R
ccl W
LETECKE ZAVODY ass. L 410 UVP-E20
MAINTENANCE SCHEDULE
- rl
h h rl z 3 Z I
P CV I . m - 0 0
l-i W m o d - 0 0 --ZUJ - Z
UJ P z e w m 0 h . .
Jan 12/02 R Page 9.7-61
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
F b X F X F Dl C k k C C
z .,+ -rlx a) - rl a) 0 -rl -4 rl CI]
rl 4~ 4~ a - a - a o a a) a F d 4J d 4J F: F C F C O k C F a) b a) c m -rl : 'g m a)
m a, mG a) rd a) d rl
G C m .rl -4 E rl rl rl rl 4 m a 3 -4 I rl 4~ m 4~ m k LI
(w a k E: k c c k C L I G k O a)k a): a) rl s a m a) rd -4 m -rl m -rl m m m Q) a) o I=& c k m a) g: oc, 0 a) (IIU H CI H 4~ z F z r r m Z F a m
Page 9.7-62 Jan 12/02 R
Zhapter
032
-
No.
Name of Unit
Main landing
gear wheel
Brake
Nose landing gear
uheel
4ain landing
year tyre
Nose landing
gear tyre
Effect. Type /Dwg. No./
720x310
model 3 TUBELESS
or
model 4 TUBELESS
or
29~11.0-10/11
OT01-1
GOODYEAR
550x225
model 4 TUBELESS
or
9 ' 00-6/906~06-1
GOODYEAR
Time Limits
Hours I Serv
ice Life
Hours
9 000
landgs
- -
Yrs
Origin
CR
CR
USA
CR
USA
LETECKE ZAVODY a . s . L 410 UVP-E20
M2%INTENANCE SCHEDULE
Page 9.7-64 J a n 12/02 R
LETECKE ZAVODY a.s. L 410 W P - E 2 0
MAINTENANCE SCHEDULE
ccl W I
k c , k
Jan 12/02 R Page 9.7-65
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Page 9.7-66 Jan 12/02
MAINTENANCE SCHEDULE
Jan 12/02 Page 9.7-67
No.
-
1.
2.
3.
4.
5.
6.
7.
-
Name of Unit
~irs~eed
indicator
Airspeed
indicator
Vertical speed
indicator
am' pressure
head
Static pressure
head
Pitot tube
Speed signallizer
Effect.
LUN 1108.XX-8
LUN 1~113.XX-8
LUN lb40.XX
LUN 1155-7
LUN 1156-7
LUN 1157-7
LUN 1173.XX-8
I
Time Limits
TB
O
Hours
-
Yrs
Service Life
Hours
Yrs
LETECKE ZAVODY a - s . L 4 1 0 UVP-E20
PJlAINTENANCE S C H E D U L E
a, U (I]
-rl k $ s k 0 a, 32 cn
Jan 12/02 Page 9.7-69
MAINTENANCE SCHEDULE
k a Cl
U 4J -4 b'-4 4J C R a-rl m C S C b'a a rd rl k.' z m u h
u
Page 9.7-70 Jan 1 2 / 0 2 R
I-'
4
I-'
Transponder
sydtem
(is installed)
b) ~ncoding
Altimeter
tray
I I
Transponder
system
(if installed)
I
b)Encoding
I altimeter
I tray
I )Lighting
2
sets
2 2 2 2
1
set
1
1
1
1
I
Time Limits
Origin
US
A
US
A
US
A
US
A
US
A
US
A
US
A
US
A
US
A
US
A
LETECKE ZAVODY a.s . L 410 UVP-E2O
MAINTENANCE SCHEDULE
w' m 0
Jan 12/02 R
a, 'ti - d d
a, U -d
t a, cn
LETECKE ZAVODY a s s . L 4 1 0 WP-E20
M2XINTENANCE S C H E D U L E
Jan 12/02 R Page 9.7-73
Page 9.7-74
LETECKE ZAVODY a . s . L 410 UVP-E20
MAINTENANCE SCHEDULE
c, r i a , rl N N
cn
Jan 12/02 R
MAINTENANCE SCHEDULE
a C a, 0
rlrl u a r l 4 c a 3 Oc, a -4 ul
Jan 12/02 R Page 9.7-75
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
Jan 12/02 R
LETECKE ZAVODY a.s. L 410 UVP-E20
MSLINTENANCE SCHEDULE
Jan 12/02 R Page 9.7-77
LETECKE ZAVODY a.s. L 410 UVP-E20
MAINTENANCE SCHEDULE
C Q) a\ a h O) x 4 0 4
m Id O ) ? U 44J m Q a G Id k-d +J a k aw 0 a-d PC a -
Page 9.7-78 Jan 12/02 R
MAINTENANCE SCHEDULE
0 z U)
k ru a) El] rl
0 CO 4 EU) Ln 0 0
to I
d' 0
CV cn d'
El] rl
b z - 5
0 cll
Jan 12/02 Page 9.7-79
-
No.
-
1.
1.
2.
3.
-
Name of Unit
Power plant
Engine (includinc
major components
inGtalled on
engine )
Enqine controls
Genkrator speed
derivative
element
1ntGgrated
eleotronic
limiter unit
Ambient air
temperature
transmitter
Effect .
Type /Dwg. No./
LUN 5223-8
LUN 5260.XX
P-5 (7:)
Time Limits
TBO
Hours
2 000
or
2 250
cycles
- - -
Yrs
5 - - -
Service Life
Hours
6 000
or
6 750
cycles
9 000
5 000
8 000
Yrs
10
10
-
LETECKE ZAVODY a.s. L 4 1 0 WP-E20
MAINTENANCE SCHEDULE
J a n 1 2 / 0 2 R Page 9 .7 -81
LETECKE ZAVODY a.s. L 410 W P - E 2 0
MAINTENANCE SCHEDULE
Page 9.7-82 Jan 12/02 R
LET L 410 W P - E 2 0
MAINTENANCE SCHEDULE
9.9. Statistics and elaboration of operation defects influencinq
the operational safety
The given service life of individual airframe parts which
follows the chapter 2 , is estimated for the presumed
utilization of the aircraft from the operation given by the
following parameters:
I Average flight T = 60 minutes 1 The life is analyzed and tested in laboratories for four
typical flights I, 11, 111, IV, the first three being
without the wing tip tank, the flight IV. is with the wing
tip tank.
Flight profile
Flight time (min)
Flight probability
G .......p ay load max.
PL . max .
Pay load
ti
PL . max .
0 . 8 G PL . max .
0 . 8 G PL . max .
The determined life for the above
operation is given in the chapter 2.
Flight altitude
Runway ratio
zoncrete grass
mentioned average
The life is given
here also for permanent flights IV., (with wing tip tanks).
The diagram of the dependance of the service life on the
percentage of flights with WTT is also given. - Aug 31/95 Page 9.9-1
LET L 410 WP-E20
MAINTENANCE SCHEDULE
Average data for the flight IV.:
I Flight altitude 1 1.2 km I Flight time
The given lives in the chepter 2 . are valid for the
average operation parameters and the given routine and
periodic maintenance inclucing the inspection of the
aircraft. With significant deviations from the presumed
operation, other defects and failures may occur on the main
structural parts of the airframe which have not been found
during fatigue tests in the laboratory. The defects and
failures influencing the safety level of the flight must be
statistically followed during periodic maintenance,
inspection of the aircraft and unscheduled inspections.
The increasing number of defects with some parts due to the
increasing number of flights indicates reaching their life
t time. Such parts must be preventatively in advance replaced
l or repaired.
I The statistics of defects is recorded in a form and I submitted to manufacturer of the aircraft for his opinion. I I The originating defects may be considered from the I following viewpoints
200 min. 1
I - defects of common nature (mechanical wear and damage) I occuring in the average like with other types of I I aircraft. Such defects do not influence the life and are
I not noted in statistics.
1 Page 9 . 9 - 2
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
- defects due to variable loads during operation (loosening of rivetted joints, cracks in subsidiary fittings).
Such defects found especially during the inspection of
the aircraft are removed by tightening the rivets,
replacement of fittings ets., as far as their statistical
number is acceptable and do not increase with the
increasing - - - - hours flown. They are recorded in statistics - - - - - - - - - - - - - - - - - - -
only if their number is increasing considerably.
- defects due to the variable loads in operation
influencing the life (e.g. cracks in engine mount in main
structural parts of the aircraft, fuselage and tail unit
ets.) Such cases are solved by a repair or replacing the
part and are recorded in statistics.
The filled-in statistical forms are sent once a half-year
to the manufacturer of the aircraft with a request for an
advice how to solve the defects of a mass occurrence. - - - - - - - - - - - - - - - - - - - - - - - - - - -
Example of statistical form for recording the defects of
the airframe is enclosed in this supplement.
Notes for filling-in the defect statistics
- number of observed aircraft in the given period at a I
single user
- only major component are mentioned: fuselage,
wing,
engine mount, - landing-geaF attschnent -f ittings -
horizontal tail sufraces,
aircraft controls,
wing flaps.
- only defects of a more serious nature are recorded which
might influence the level of flight safety. -
Page 9.9-3
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
In the column - Measure - one writes e.g. replacement of
part, repair as per section 5, repair on the suggestion of
the user, repair on agreement with the producer, repair by
the manufacturer etc. Here also one states the proposal for
the observation in the further operation and for the
measure concerning the whole fleet of aircraft at the
respective operator. - - - - - - -
- in the column - Defect type No. - one notes the numerical symbol selected by the user for a certain defect type. The
user marks then the same defect in any further report by
the identical number.
- in the column - Defect found during inspection - one notes :
routine maintenance
periodic maintenance
inspection of aircraft
etc.- - - - - - - - - - - - - ~
I - Page 9.9-4 Aug 31/95
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MAINTENANCE SCHEDULE
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M2kINTENANCE SCHEDULE
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- Page 9.9-6
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
I 1 9.10. Special airframe inspections.
9.10.1. General
The critical areas of the airframe were found by fatigue
and static strength tests. These areas must be very
carefully observed during 4 800 hrs inspections and
possible inspections made by the aircraft manufacturer - - - - - - - -
or by the representative b f supervisory authority; - - -
The critical areas are examined with a magnifier of a
minimum magnification 5 : l . During the inspection these
areas should be examined on disassembled parts of the
aircraft structure. The found defects and cracks are
repaired in accordance with the instructions given in
this Maintenance Schedule. Repair of cracks and larger
defects, which is not mentioned in this Schedule and in
the relevant documents, is solved as follows:
- in case- oc a- smaller - extent concerning the secondary_ structural elements of the airframe the repair is done
according to the practice of the user with the
condition of maintaining the same strength without the
approval of the manufacturer.
- in case of fatigue defects and mechanical damage on
primary structural elements of the airframe the repair
must be consulted with the aircraft manufacturer.
9.10.2. List of critical areas accordinq to structural sroups
Winq - - - - - - - - - - - - - - - - -
- - - - - - - - -
Areas of the lower cap of the fore spar. Skin cross
splices on the lower wing side.
May 15/98 Page 9.10-1
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
Partition of the fore spar caps on the lower side between
the ribs No. 10-11.
Web of the aft spar between ribs No. 22-25. Wing to
fuselage rear attachment fitting in the area of holes for
I screws M 7 (fixing of the fittings to the lower cap of
the aft spar). Lower cap of the aft spar at the rib
Skin around the inspection holes on the lower wing side.
Holes in attach fittings for the bolts of wing-fuselage
connection (check for ovality, after 14 000 flight
hours ) .
Fuselaqe
Lower cap of landing gear spars on frames No. 12 and 14.
Holes for bolts of wing-to-fuselage attachment fittings
(check for ovality after 14 000 flight hours). - - - - - - -
Attachment f-itt-ings - for the - tai-1 unit at frames
No. 25-26.
Tail unit
Suspensions of stabilizer.
Suspensions of tail fin.
Connection of longitudinal stringers with cross ribs
between the spars of the stabilizer (cracks in the skin).
Caps of the fore stabilizer spar in the place of
stabilizer attachment fittings. Suspension bushings of
tail unit (corrosion, wear)-.- - - - - - - - - - - - - - - -
- - - - - - - - - - - - - -
- Page 9.10-2 May 15/98
LET L 410 WP-E20
JXAINTENANCE S C H E D U L E
Repair of common defects without the manufacturer's consent
In order to determine the possibility and way of repair
examine carefully the damage extent by inspecting the
structure, some times even after a partial removal of the
skin rivets.
The process for defect removal of skins and airframe parts
is given in the Maintenance manual (subjection 020.20.00)
where also the process for repair of damaged parts is
described. In this Maintenance Manual are also mentioned
permissible deformations which may be left in operation
without repairs, thickness of individual itens, drawings of
structural connections, process for finding out loosened
rivets and further technical requirements for repair.
If you do not find the repair process in the Maintenance
manual or in this supplement, request the manufacturer for
the way of repair which secures you maintaining the
requirement of the safety level of flight.
The defects be divided the following groups :
- small defects which need not be repaired, like local
dents of the skin, crazing in the skin not exceeding the
depth of cladding, appearance defects of paint,
upholstery etc.
- defects which may be repaired according to design rules
and work procedures for repair of assemblies as per the
Maintenance manual
- defects with the fault of the primary structural elements (deformation of the wing spar or stabilizer spar,
deformation of ribs, wing, fuselage frames etc.). Such
repairs may be carried out only by a specialized repair
shop or by the manufacturer. - Aug 31/95 Page 9.11-1
LET L 410 UVP-E20
-1NTENANCE SCHEDULE
Maintaining of the conditions of the static and fatigue
strength guarantees the authorized repair shop which may
ask the manufacturer for approving it.
- defects of such extent that the repair is either
impossibble or so costly that it is better to replace the
damaged item for a new one either by the manufacturer or
authorized repair shop.
- Page 9.11-2 Aug 31/95
LET L 410 UVP-E20
MJiINTENANCE SCHEDULE
9.12. Replacement of details
9.12.1. General
In order to secure the routine maintenance, the
manufacturer supplies spare parts for the aircraft 1:1
and a set of spare parts for instruments and major
components. It is possible also separately order sets of
spare parts and materials 1:5 supplied with every fifth
aircraft (or in other way as per contract). On the
request of the customer the scope of the set of spare
parts may be enlarged. The work procedures for the use of
spare parts and possible supplementary operations are
given in the Maintenance Manual of the L 410 UVP-E20
aeroplane.
9.12.2. Process of spare parts procurement
During the operation of aircraft, excepting cases when a
part from the set of spare parts may be used for the
repair , secure the damaged detail, instrument or
assembly at the manufacturer. When doing so proceed as
follows.
9.12.2.1. Identification of detail
The equipped aircraft, structural units of the
aircraft, individual details, elements, instruments and
assemblies are provided with identifications (drwg.
No., standard, other marking etc.) State such
identificators in the spare parts order. The
identificators you may find by means:
Page 9.12-1
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
- Illustrated Parts Cataloque
This Catalogue is meant as aid for ordering spare
parts of the aircraft. Only the removable parts of
the airframe are given in detailed drawings in the
Catalogue. The Illustrated Parts Catalogue for the
L 410 UVP-E20 aeroplane does not form a part of the - - - - - - - -
- - - - - - - - - ~
accompanying documentation supplied with every
aircraft.The customer may order it at the
manufacturer.
- Album of production, operation and repair tolerances
The album of production, operation and repair
tolerances is meant for the attendance of the
L 410 WP-E aeroplane in the course of periodic
maintenance and inspection. ~eside the data on the
correct dimensions and alignment during the
aircraft1 s operatian, - are - in - the columri, "drawing
numbern given the identifiers for the respective
component or standard parts. With some assembly
groups are in the column "Note1' given the drawing
numbers of repair drawings. All identifiers may be
used for ordering. This album does not form a part of
the accompanying documentation supplied with every
aircraft. The customer may it order at the
manufacturer.
- Inquiry on the service qroup of manufacturer - - - - - - - - - - - - -
- - - - - - - - - - - - - - - ~ ~
In the framework of the advisory activity at the
customer (service centre) one may exceptionaly make
an inquiry for the identification of the required
part.
- I I Page 9.12-2 Aug 31/95
LET L 410 UVP-E20
MAINTENANCE SCHEDULE
9.12.2.2. ~rderinq of spare parts
After the identification proper of the respective
part (spare part) order as follows. State in the
order:
- identifier - name of ordered part - pieces of ordered parts. With planned spare parts
give also the partial deliveries in individual
quarters of the year.
- serial number of aircraft for which the spare parts are ordered (does not concern the standardized
parts )
- Aug 31/95 Page 9.12-3
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