AMP Tecnam P2002-JF Ed3 Rev0
AMP Tecnam P2002-JF Ed3 Rev0
AMP Tecnam P2002-JF Ed3 Rev0
AIRCRAFTMAINTENANCE
PROGRAMTECNAM P2002-JF
( ПРОГРАММА ТЕХНИЧЕСКОГО
ОБСЛУЖИВАНИЯ)
Typeofaircraft:TecnamP2002-JF
Registration marks:UP-LA 266s/n:171;UP-LA197 s/n:221;
Type of engine: Rotax 912S2
Type of propeller: Hoffmann HO 17GHM
Operator: «Falcon Avia» LLP;
TABLE OF CONTENT
LIST OF REVISIONS
Revision
Revision date Incorporated by Incorporation date Signature
No.
3 18-03-2022
LIST OF ABBREVIATIONS
Abbreviation Description
AD Airworthiness Directive
AFM Aircraft Flight Manual
(A)MP (Aircraft) Maintenance Program
CRS Certificate of Release to Service
EASA European Aviation Safety Agency
SB Service Bulletin
SL Service Letter
STC Supplemental Type Certificate
TC Type Certificate
P2002-JF-AMM Tecnam P2002-JF Aircraft maintenance manual
OMM No. E 0110.74 Operation and maintenance manual for Hoffmann HO-series fixed pitch propeller
MM(L) Rotax 912 S2 Line maintenance manual for Rotax 912 series engines
MM(H) Rotax 912 S2 Heavy maintenance manual for Rotax 912 series engines
OBLIGATIONS OF OPERATOR
«Falcon Avia» LLP;
Date:18.03.2022
2.1. On completion of any the AMP maintenance checks, a detailed, referenced entry must be made in
the relevant log book(s) with anappropriate CRS by the certifying person.
3.1. Airworthiness life limitations shall be those published by the state of design TC holder and STC
holders.
3.2. Airworthiness life limitations shall be recorded in document or system acceptable to the Competent
Authority.
4.1. ADs shall be those issued by EASA or and NAA responsible for the TC holder and STC holder.
4.2. Forecasting and compliance with ADs shall be recorded in documents or systems acceptable to the
Competent Authority.
5.1. Overhaul, additional inspections and test periods shall be those recommended by the TC holder or
STC holders.
5.2. EASA, NAA responsible of TC holder and the Competent Authority may vary or mandate overhaul
and test periods and additional inspections.
5.3. The forecasting and compliance with overhaul, additional inspections and test periods shall be
recorded in document or system acceptable to the Competent Authority.
6.1. Instructions for continued airworthiness consist of in-service data published by the TC or STC
holder in Maintenance manual, SBs, SLs, etc.
6.2. Continued airworthiness instructions shall be recorded in documents or systems acceptable to the
Competent Authority.
7.1. EASA approved changes (modifications), which have been carried out, must be recorded in the
documents or systems acceptable to the Competent Authority.
7.2. Any additional instructions for continued airworthiness due to the change shall be recorded in
documents or systems acceptable to the Competent Authority.
8. Independent inspections:
8.1. The TC holder or STC holder’s instructions for continued airworthiness should be followed when
determining the need for an independent inspection.
8.2. In the absence of these inspection standards, an independent inspection must be carried out after
any flight safety sensitive maintenance task.
9. Defects:
Any defect that hazards seriously the flight safety shall be rectified before further flight.
Any aircraft defect that would not hazard seriously the flight safety shall be rectified as soon as
practicable, after the date of the aircraft defect was first identified and within any limits specified in the
maintenance data. Any defect not rectified before flight shall be recorded in the aircraft maintenance
record system.
All maintenance shall be performed following the methods, techniques, standards and instructions
specified in Part-M. The aircraft should only be maintained with this approved AMP.
The general maintenance and inspection standards applied to individual maintenance tasks should
meet the recommended standards and practices of the organization responsible for the type design
which are published in the Maintenance Manual and others maintenance instructions.
SECTION 1 – INSPECTION.
This Chapter lists the components that are recommended to be replaced or overhauled within specific
time limits, individual inspections that are to be performed at specified intervals and Special
Scheduled/Unscheduled Inspections.
The tasks contained in this section include requirements for performing special and periodic
inspections. Perform all inspection tasks in the following inspection checklists at the specified intervals.
Intervals are measured in hours of operation and, as applicable, calendar months.
Every porthole, fairing, panel, etc., shall be removed to allow for inspection.
Coolant level
Verify coolant level in the expansion tank, replenish as required up to top. The max. coolant level must be flush with the bottom
of the filler neck.
Verify coolant level in the overflow bottle, replenish as required. The coolant level must be between max.andmin. mark.
Mech./electronic components
Turn propeller slowly by hand in direction of engine rotation several times and observe engine for odd noises or excessive
3
resistance and normal compression.
Gear box
Turn the propeller by hand to and fro, feeling the free rotation of 30° before the crankshaft starts to rotate.
4
If propeller can be turned between the dogs frictionless (lower than 25 Nm (19 ft.lb)), further inspection is required.
Carburetor
5 Verify free movement of throttle cable and starting carburetor over the complete range. Check from the cockpit.
Exhaust system
The erosion tipping (Type B and C) ends in the inner third of the
blade. Fine cracks in the paint along the tipping are no reason for
concern. Cracks in the tipping perpendicular to the blade axis are
not dangerous as long as the tipping does not lift off from the blade
10
body. Slide your fingernail along the leading edge from the hub to
the tip. If the tipping lifts off from a crack, remove propeller for
repair.
Fine cracks in the paint or the tipping across the blade axis,
especially in the outer third of the blade, are indications of bending
vibration. In an advanced stage the tipping may break or come off
piece by piece. Notches in the tipping support this procedure. If such
cracks occur, contact the factory or a service station which is
11
authorised by Hoffmann.
Cracks in the paint or in the blade, starting from the blade tip and
extending parallel or at any angle to the blade axis, are indications for
torsional vibrations. Such cracks occur very seldom. If such cracks
occur, contact the factory or a service station authorised by
Hoffmann.
12
15
16
V Remove tow bar and chocks, stow on board pitot, static ports and stallwarning protective covers.
Spark plug
MM(L) Rotax 912 S2 Remove all spark plugs and check for spark plug defects (deposits, ex-
2 12–20–20Remove cessive wear melting....)
the spark plugs Replace if defective. Check if GENUINE ROTAX® spark plugs are used.
Inspecting the magnetic plug
MM(L) Rotax 912 S2
3 12–20–20Inspecting Check the magnetic plug.
the magnetic plug
Inspecting the oil filter
OMM No. E 0110.74 Check torque of hub bolts by, applying the necessary torque only. Lock
1
Page 11 wire bolts again.
OMM No. E 0110.74 Check torque of hub bolts by, applying the necessary torque only. Lock
16
4.2 wire bolts again.
P2002-JF-AMM Remove cowlings and check them for condition. Check fasteners and
3
6:10;71:10 hinges for condition.
P2002-JF-AMM Check the integrity of ablative cowling coating (internal side of engine
4
6:10;71:10 cowlings). Repaint if necessary.
ATA 11 – Markings and placards
P2002-JF-AMM
5 Inspect internal placards, check for their readability and wear.
11:00
P2002-JF-AMM
6 Inspect external placards and ID board: check for readability and wear.
11:00
ATA 21 – Heating and ventilation
P2002-JF-AMM
7 Cabin heat valve: check for cracks and security of installation.
21:00
P2002-JF-AMM
8 Control the Cabin Heat valve return spring.
21:00
P2002-JF-AMM
9 Perform a cabin heat valve control cable rigging.
21:00
P2002-JF-AMM Control the hoses condition of Heating system. No damage is allowed.
10
21:00 Control fasteners.
P2002-JF-AMM Control cabin heat control knob and carburetor heat control knob for
11
21:00 condition.
P2002-JF-AMM
12 Check the air scoops for condition and free movement.
21:00
Inspect cabin heat and defrost controls for operation and condition.
P2002-JF-AMM
13 Check for operation, restricted movement, interference or unusual
21:00; 21:10
play. Check defrost valve for operation.
ATA 23 - Communications
Inspect Communication equipment for general condition, operation and
P2002-JF-AMM
14 security of installation. Inspect Audio panel for general condition,
23:00
operation and security of installation.
P2002-JF-AMM
15 Check antennas, for damage and security of installation.
23:00
P2002-JF-AMM
16 Check electrical bonding to the a/c.
23:00
ATA 24 – Electrical system
P2002-JF-AMM Check for proper battery installation. Inspect battery cables and
17
12:60; housing. Check vent and drain lines free of obstructions.
P2002-JF-AMM Remove the battery and perform capacity test. Re-install battery if
18
24:10 airworthy.
P2002-JF-AMM Inspect External Power Receptacle for absence of damage, corrosion and
19
24:10 arching.
P2002-JF-AMM Inspect circuit breakers panels for general condition and security of
20
24:00 installation. Inspect breakers markings for their readability and wear.
P2002-JF-AMM Check the hardware and related connection behind the instrument panel
21
24:00 for condition, corrosion, deformation and damage.
P2002-JF-AMM
22 Perform overvoltage relay test.
24:20
Remove all inspection caps and inspect all electrical wires, connectors
P2002-JF-AMM
23 and attaching parts for security, routing, chafing, deterioration, wear
24:00
and correct installation.
P2002-JF-AMM Check bus bars for general condition, cleanliness, and security of all
24
24:00 attachments and terminals.
ATA 25 – Equipment and furnishings
Inspect seat, check for condition, check the seat guide and seat guide
P2002-JF-AMM
25 attachments for unusual wear and friction. Check the locking lever free
25:00; 25:10
to move. Test locking system at both seat positions.
P2002-JF-AMM Check safety belts for condition and operation. Inspect safety belts
26
25:20 attachments.
P2002-JF-AMM Inspect the first aid kit, check for expiration date of the single parts (if
27
25:00 necessary replace the items).
P2002-JF-AMM
28 Inspect cargo net and the floor attachment points for condition.
25:20
ATA 26 – Fire protection
Inspect portable fire extinguisher, and related support: weigh and follow
P2002-JF-AMM
29 service instructions written on the bottle (if necessary replace). Check
26:00
security of installation and effortlessness of removal.
ATA 27 – Flight controls
Flight controls: check free and smooth, inspect control stick, Teflon
loops, rods, bellcranks, cables and turnbuckles removing floor
P2002-JF-AMM
30 inspection panels/cabin covers. Check for interferences, corrosion, rub
27TOC
marks, and wear out. Inspect cables for tension and condition. Check
turnbuckle locking for security of installation.
P2002-JF-AMM Inspect stabilator trim: check for full travel and correct operation. Check
31
27;40 related indicator for operation.
ATA 28 – Fuel system
P2002-JF-AMM Check fuel pump electrical connections. Check fuel line connections
32
28TOC forleakage. Control fireproof socks.
P2002-JF-AMM
33 Clean electrical fuel pump filter.
28:10
P2002-JF-AMM Clean Gascolator filter. Check quick drain valve for condition and
34
28:10 operation.
P2002-JF-AMM
35 Inspect fuel tanks and lines for leaks and condition.
28:10
P2002-JF-AMM
36 Inspect fuel tank vents free from obstruction.
28:10
Inspect fuel selector valve for leaks, general condition and security of
P2002-JF-AMM
37 installation. Check fuel tank sump drain valves for conditions and
28TOC
operation.
P2002-JF-AMM Inspect operation of fuel selector valve control knob. Check for
38
28TOC restrictedmovement, interference or unusual play.
ATA 31 – Indicating system
P2002-JF-AMM Inspect the individual instruments and switch panels for general
39
31TOC conditionand security of installation.
P2002-JF-AMM
40 Check stall detector for integrity and operation.
31TOC
P2002-JF-AMM
41 Inspect all instruments markings for their readability and wear.
31TOC
MM(L) Rotax 912 S2 Inspect the overflow bottle for damage and abnormalities. Verify
106 12–20–20 coolant level, replenish as necessary. Inspect line from expansion tank
Overflow bottle to overflow bottle for damage, leakage and clear passage. Inspect
venting bore in cap of overflow bottle for clear passage.
MM(L) Rotax 912 S2 Inspect all oil lines for damage, leakage, hardening from heat, porosity,
107 12–20–20 security of connections and attachments. Verify routing is free of kinks
Leakage check and restrictions.
Inspect all fuel lines for damage, leakage, hardening from heat,
MM(L) Rotax 912 S2
porosity, security connections and attachments. Verify routing is free
108 12–20–20Checking
of kinks and restrictions. Check steel fuel lines for any cracks and/or
the fuel lines
scuffing marks.
MM(L) Rotax 912 S2
Inspect the wiring and its connections for secure fit, damage and signs
109 12–20–20Check of
of wear.
wiring
110 MM(L) Rotax 912 S2 Inspect engine suspension and fasteners (GENUINE ROTAX® ) for
12–20–20Checking secure fit, including damage from heat, deformation, cracks.
SECTION 1 – INSPECTION Issue 3 /rev. 0 / 18-03-2022 1-14
TECNAM P2002-JF AIRCRAFT MAINTENANCE PROGRAM
the engine
suspension
P2002-JF-AMM
Check the airbox (GENUINE ROTAX ® ) incl. air flap actuation. Inspect
111 S-4Air-box control
sensors for tight fit, damage from heat, damage and signs of wear.
rigging
MM(L) Rotax 912 S2
112 12–20–20Cleaning Checkingtheairfilter.
the dry air filter
Inspect of the GENUINE ROTAX® exhaust system included in the
MM(L) Rotax 912 standard delivery.
113 S212–20–20Visual NOTE
inspection If there is no standard/genuine exhaust system in use, the
specifications of the manufacturer must be observed.
Auxiliary alternator
MM(L) Rotax 912 S2
On configurations with auxiliary alternator, check the attachment and
114 12–20–20Checking
the V-belt tension.
the V-belt tension
Checking the carburetors
MM(L) Rotax 912 S2
115 12–20–20Check the Checking the idle speed.
idle speed
MM(L) Rotax 912 S2
12–20–20Checking Check for free movement of the carburetor actuation (throttle lever
116 and starting carburetor).Check that the Bowden cable allows the full
carburetor actuation
travel of the throttle lever from stop to stop.
MM(L) Rotax 912 S2
12–20–20Checking Check carburetor synchronization. Mechanical and pneumatic
117
carburetor synchronization.
synchronization
Engine cleaning
MM(L) Rotax 912 S2
118 12–20–20 Engine cleaning.
Engine cleaning
Checking the air intake system
MM(L) Rotax 912 S2
119 12–20–20Checking Checking the air filter.
air intake system
Liquid level check
MM(L) Rotax 912 S2
120 12–10–00 Verify liquid level, replenish as necessary.
Fluid capacities
Checking the idle speed
MM(L) Rotax 912 S2
121 12–20–00Checking Checking the idle speed.
the idle speed
Engine test run
Observe the safety instructions!Start the engine and run to operating
temperature.Limits see in Operators manual 912 series.
Ignition check at _____________ rpm engine speed.
Speed drop without ignition circuit:
A (Off) ______________ rpmB (Off) ______________ rpm
MM(L) Rotax 912 S2 A/B (difference) ______________ rpm
122 12–20–00 Inspect carb heat system.
Test run of Hit the preheating and make a note of speed drop.
engine Speed drop ____________ rpm.
Preheating “OFF”, engine idle running and make a note of idle speed
running __________ rpm.
After engine test run, re-tighten the oil filter by hand (only at cold
engine).
Check for leaks.
SB 108 – CS – Rev0
123 SB 108 – CS – Rev0 See SB 108 – CS – Rev0.
2.6 200 hours inspection.
Spark plug
MM(L) Rotax 912 S2
Check that resistance spark plug connectors fit tightly on the spark
2 12–20–20Inspection
of spark plugs plugs. Minimum pull-off force is 30 N (7 lb).
MM(L) Rotax 912 S2
3 12–20–20Installation Replacing spark plugs.
of spark plug
Checking the carburetors
Checking the ventilation of the float chambers. Any trouble with the
MM(L) Rotax 912 S2 float chamber ventilation impairs engine and carburetor function and
4
must therefore be avoided. Check that the passage of the ventilation
lines is free and that no kinks can arise.
MM(H) Rotax 912 S2
5 Removal/assembly of the two carburetors for carburetor inspection.
73-00-003.3
MM(L) Rotax 912 S2
6 12–20–20Check Check weight of floater.
weight of floater
Inspecting carburetor sockets and drip tray
MM(H) Rotax 912 S2 Inspect the carburetor sockets for damage and abnormalities, checking
7 73-00-003.4.3 for cracks, wear and good condition. Take note of changes caused by
SB-912-030 temperature influence. See SB-912–030 — latest edition.
Exhaust
P2002-JF-AMM
8 Remove and inspect heat exchanger.
78TOC
SECTION 2 –SERVICING.
Servicing the aircraft includes the replenishment of fuel, oil, hydraulic fluid, tyre pressures,lubrication
requirements and other items required to completely service the aircraft.
The information in the following sections pertains to general maintenance procedures.
Detailed information on the engines will be found in the engine Maintenance Manual.
The chapter includes the following procedures:
1. Storage.
2. Fuel system – Servicing practices.
3. Oil system – Servicing practices.
4. Coolant system – Servicing practices.
5. Seats.
6. Airplane cleaning instructions.
7. Wheels - Servicing practices.
8. Brake system - Servicing practices.
9. Control cables - Servicing practices.
10. Towing.
11. The list of places subject to greasing.
12. Torque data.
13. Safetying.
1. Storage
№ Section Reference Maintenance Task Description Mechanic
Airplane
P2002-JF-AMM Park airplane in hangar, if practical. If airplane is parked outside,
1
10:10 position on leveled surface and head it into the prevailing wind.
2 Center nose wheel.
Remove the top spark plugs and spray all openings withcorrosion
17
inhibiting oil.
Turn the propeller several times by hand in direction of theengine
18 rotation, so that the corrosion inhibiting oil all necessary points
reaches.
MM(L) Rotax 912 S2
19 12–20–20Installation Install the spark plug.
of spark plug
Close all openings on the cold engine, such as exhaustend pipe, venting
20
tube, air filter etc. against entry of dirtand humidity.
21 Spray all steel external engine parts with corrosion inhibiting oil.
Propeller
No propeller should be stored standing on the blade tips. The best is to
store the propeller in the original packing. Special preservation of
OMM No. E 0110.74
22 HOFFMANN fixed pitch propellers is notnecessary, the existing
6.2
surface protection is sufficient. The propeller should not be stored near
heating systems or in rooms with extreme temperature changes.
Each fuel tank is filled through a single filler cap located on the wing upper skin. Each tank has a
capacity of 50 Lt (100 Lt total fuel capacity), 0.5 Lt are unusable(1 Lt total fuel unusable).
CAUTION
Use only clean fuel servicing equipment.
CAUTION
Prolonged use of Aviation Fuel Avgas 100LL results in greater wear of valve seats and greater
combustion deposits inside cylinders due to higher lead content. It is therefore suggested to
avoid using this type of fuel unless strictly necessary.
Refueling Procedure:
WARNING
Take care that no foreign objects are inadvertently
introduced into the
1. Apply aircraft’s and refueling vehicle’s ground, through the engine muffle
2. Place a container under the fuel sump drain valve
3. Open the drain valve (refer to Figure 1)
4. Wait for complete water/moisture defueling
5. Close drain valve
6. Open the filler cap
7. Fill as required
8. Close the filler cap
9. Clean up any fuel spilled
10. Repeat the procedure for the other tank
11. Remove aircraft’s ground
Fuel Contamination Check Procedure:
1. Apply aircraft’s ground
2. Place a glass container under the drain valve
3. Open the drain valve
4. Fill the glass container and close the drain valve
5. Check fuel sample:
a. must be clear and clean
b. there should be no water inside
c. there should be no deposits inside
Following paragraphs shows the procedures for oil level checking, filling and change.
CAUTION
Make certain that fluids and fluid containers are protected from contamination of any kind.. If
there is any doubt regarding the cleanliness of the fluid, do not use it. Containers for fluid must
never be left open to air longer than necessary.
WARNING
Allow the engine to cool down to the ambient temperature before start of any work.
CAUTION
In event of heavy oil contamination, it is necessary to perform the oil tank cleaning operation.
Refer to Par 12.22
In order to equalize the pressure inside the engine cooling system, an expansion tank is provided in the
highest point of the cooling system and it is fitted with a filler cap. The procedure for coolant
replenishing is described below.
WARNING
Do not remove the expansion tank radiator cap when the engine is hot:
escape of boiling coolant can cause injury to persons.
Procedure
1. Wait for the engine to cool down
2. Open engine cowling
3. Refer to Figures 6. and 7. for coolant tank location
4. Visual inspect of expansion tank level (always max) : replenish if necessary
5. Visual inspect of overflow bottle (between two marks of coolant tank, min. & max)
6. If necessary, replenish with coolant of same composition both the tanks (repeat filling procedure)
7. Close engine cowling
5. Seats.
The aircraft should be washed with soapy water. Abrasive detergents or alkaline soaps used on painted
or plastic surfaces could lead to scratches or cause corrosion of metal surface. Cover areas where
cleaning solution could cause damage.
NOTE
How often the a/c should be cleaned depends on the environment in which it has been operating. It is
important that the airplane be kept in a clean condition and repeated cleaning should be
SECTION 2 – SERVICING Issue 3 /rev. 0 / 18-03-2022 2-9
TECNAM P2002-JF AIRCRAFT MAINTENANCE PROGRAM
accomplished as often as necessary. The necessity for cleaning is indicated whenever there is any
appreciable amount of soil accumulation, by the presence of salt deposits or other contaminants, by
evidence of paint surface deterioration and by the presence of excessive oil or exhaust deposits or
spilled electrolyte and deposits around battery area. Cleaning is required immediately after exposure
to adverse weather conditions, salt spray, after repairs or service which left stains, smudges or other
gross evidence of maintenance.
CAUTION
Avoid entry of solutions and flooding of soap into a/c openings such static vents: it is
recommended that openings and vents be plugged as a precaution. Install protective caps if
practical.
Windows Cleaning Procedure
1. Remove with water dirt, mud, etc. from external surfaces
2. Wash with warm soapy water or with an aircraft plastic cleaner, employ a
soft cloth or sponge using a straight rubbing motion. Do not harshly rub surfaces.
3. Remove oil and grease with a alcohol moist cloth.
Internal Surfaces Cleaning
The aircraft interiors should be washed with a mild soap and water, never use alcohol
based or flammable products.
The instrumentation as a whole must be cleaned with a humid cloth; plastic surfaces
can be cleaned with suitable products.
For not easily accessible parts, perform cleaning with a small brush; for seats
cleaning make reference to P2002JF AMM Section 12-40.
Engine Cleaning Procedure
For engine cleaning procedures, refer to Rotax Engine Maintenance Manual P/N 899191 – last issue.
CAUTION
As safety general rule, when servicing aircraft tires, personnel should stand either in the front
or rear of the wheel and avoid approaching from either side of the tire.
Procedure
1. Unscrew the valve dust cap
2. Connect a pressure gauge
3. Read the pressure. If required, adjust the pressure (MLG wheels 2.8 bar/40 psi and NLG
wheel 2.2 bar/32 psi)
4. Fit the valve dust cap
Overall oil quantity in the brake system is 400ml (order of magnitude). Fluid is drawn from the
reservoir by the brake cylinders to maintain the fluid volume required for maximum braking efficiency.
The oil level check procedure is addressed below; refer to Chapter 32 for bleeding and filling brake
system procedures.
CAUTION
The brake system operation with low oil level could affect the brakes’
performances and could cause permanent damage
WARNING
Make certain that hydraulic fluids and fluid containers are protected from contamination of any kind.
Dirt particles may cause hydraulic units to become inoperative, cause seal damage, etc. If there is any
question regarding the cleanliness of the fluid, do not use it. Containers for hydraulic fluid must never
be left open to air longer than necessary.
Cable damage
Critical areas for wire breakage are sections for the cables which pass through fairleads and around
pulleys. To inspect each section which passes over a pulley or through a fairlead, remove cable for
broken wires by passing a cloth along length of cable. This will clean the cable for a visual inspection,
and detect broken wires, if the cloth snags on cable. When snags are found, closely examine cable to
determine full extent of damage. The absence of snags is not positive evidence that broken wires do not
exist. The figure below view A shows a cable with broken wires that were not detected by wiping, but
were found during a visual inspection. The damage became readily apparent (View B) when the cable
was removed and bent using the techniques depicted in View C.
Pulleys
Inspect pulleys for roughness, sharp edges, and presence of foreign material embedded in the grooves.
Examine pulley bearings to assure proper lubrication, smooth rotation, freedom from flat spots, dirt,
and paint spray. Periodically rotate pulleys, which turn through a small arc, to provide a new bearing
surface for the cable. Maintain pulleys alignment to prevent the cable from riding on flanges and chafing
against guards, covers, or adjacent structure. Check all pulley brackets and guards for damage,
alignment and security.
Cable fittings
100 hours standard inspection: check swaged terminal reference marks for any indication of cable
slippage within fitting. Inspect fitting assembly for distortion and/or broken strands at the terminal.
Check that all bearings and swivel fittings (bolted or pinned) pivot freely to prevent binding and
subsequent failure. Check turnbuckles for proper thread exposure and broken or missing safety
wires/clips. Pay particular attention to corrosion and “pitting” on cable terminals, turnbuckles and
cable fittings. Any corrosion or pitting found, requires replacement of the corroded fitting and/or cable.
100 hours special inspection: for aircraft 15 years old or older, using a 10X magnifier, visually inspect the
entire surface of each cable terminal, turnbuckle, or other cable fitting for corrosion or cracking. Inspect
under safety wire or clips wrapped around the cable or fitting. Any evidence of corrosion or cracking,
however minute, is cause for replacement. A logbook entry documenting the replacement of a cable
terminal, turnbuckle, or other cable fitting relieves the inspection requirement for that fitting only, until
such time as that fitting has been in service for 15 years.
10. Towing.
Move the aircraft on ground by pulling on the propeller blades close to hub. A tow bar can be attached
to fittings. Aircraft can be steered using the rudder or, for sharp turns, by lowering the tail to raise nose
wheel off the ground. In this case, owing to the favorable CG location, a gentle push on the tail cone just
ahead of empennage surfaces is all that is needed. Avoid dragging nose wheel sideways and do not
attempt to counter any movement of the aircraft by handling it by its wing tips.
Refer to Rotax Engine Maintenance Manual P/N 899372 for lubricants approved to be used for engine parts.
Grease canopy’s ball bearings and adjustable seat rails when necessary.
- Do not lubricate cockpit controls.
- Do not apply lubricant to rubber parts.
- Do not lubricate control cables, this causes slippage.
This paragraph gives the standard practices for torque loading nut and bolt combinations.
The importance of correct torque application cannot be overemphasized.
Undertorque can result in unnecessary wear of nuts and bolts, as well as the parts they secure.
Overtorque can cause failure of a bolt or nut from overstressing the threaded areas. Uneven
oradditional loads that are applied to the assembly may result in wear or premature failure.
The following are a few simple, but important procedures, that should be followed to ensure that
correct torque is applied.
-Be sure that the torque applied is for the size of the bolt shank, not for the wrench size.
-Calibrate the torque wrench at least once a year, or immediately after it has been abused or dropped,
to ensure continued accuracy.
-Be sure the bolt and nut threads are clean and dry, unless otherwise specified
-Run the nut down to near contact with the washer or bearing surface and check the friction drag
torque required to turn the nut. Whenever possible, apply the torque to the nut and not the bolt. This
will reduce rotation of the bolt in the hole and reduce wear.
-Add the friction drag torque to the desired torque. This is referred to as “final torque,” which should
register on the indicator or setting for a snap-over type torque wrench.
-Apply a smooth even pull when applying torque pressure. If chattering or a jerking motion occurs
during final torque, back off the nut and retorque.
-When torque is applied to bolt heads or cap screws, apply the recommended torque plus friction drag
torque.
-Whenever possible, apply the torque to the nut and not the bolt. This will reduce rotation of the bolt in
the hole and reduce wear.
-If special adapters are used which will change the effective length of the torque wrench, the final
torque indication or wrench setting must be adjusted accordingly.
Determine the torque wrench indication or setting with adapter installed as shown in figure beloworsee
AMM P2002JF ATA20-10 Page 201.
Torque Values
Bolts used in aircraft structures are compliant with AN and ISO metric specifications. Standard torque
values for nut and bolt combination are given in following table, if not otherwise specified in the
Maintenance Manual procedures.
13. Safetying
Safety locking allows for securing by various means any nut, bolt, turnbuckle etc. on the aircraft so that
vibration will not cause it to loosen during operation.
When applied, it prevents the disengagement of screws, nuts, bolts, snap rings, oil caps, drain cocks,
valves, and parts.
Specific data for other types of safety locking are described in the individual maintenance practices.
Three basic methods are used in safetying; safety-wire, cotter pins, and self-locking nuts.
Wire, either soft brass or steel is often used on control cable turnbuckles and engine accessory
attaching bolts.
Cotter pins are used on any point where a turning or actuating movement takes place.
Self-locking nuts are used in applications where they will not be removed often. Repeated removal and
installation will cause the self-locking nut to lose its locking feature.
They should be replaced when removed.
- Copper wire (.020 inch diameter), aluminium wire (.031 inch diameter), or other similar wire called
for in specific technical orders, should be used as seals on equipment such as first-aid kits, portable fire
extinguishers, or emergency valves.
There are many combinations of safety wiring with certain basic rules common to all applications.
These rules are as follows.
-Remove all pieces of the old lockwire from the component
- Use only new lockwire, never use lockwire more than once or damaged
-Do not drill additional safety wire holes
-When bolts, screws, or other parts are closely grouped, it is more convenient to safety wire them
inseries.
-Drilled boltheads and screws need not be safety wired if installed with self-locking nuts.
-Safety wire must never be overstressed. Safety wire will break under vibrations if twisted too tightly.
Safety wire must be pulled taut when being twisted, and maintain a light tension when secured.
-Safety-wire ends must be bent under and inward toward the part to avoid sharp or projecting ends,
which might present a safety hazard.
-Check the units to be safety wired to make sure that they have been correctly torqued, and that the
wiring holes are properly aligned to each other. When there are two or more units, it is desirable that
the holes in the units be aligned to each other. Never Overtorque or loosen to obtain proper alignment
of the holes. It should be possible to align the wiring holes when the bolts are torqued within the
specified limits. However, if it is impossible to obtain a proper alignment of the holes without
undertorquing or overtorquing, try another bolt which will permit proper alignment within the
specified torque limits.
-Never twist the wire ends off with pliers; and, when cutting off ends, leave at least four to six complete
turns (1/2 to 5/8 inch long) after the loop. When removing safety wire, never twist the wire off with
pliers. Cut the safety wire close to the hole, exercising caution.
-Install safety wire where practicable with the wire positioned around the head of the bolt, screw,
ornut, and twisted in such a manner that the loop of the wire fits closely to the contour of the unit being
safety wired.
-When securing caps and drain cocks, the safety wire should be anchored to an adjacent fillister-head
screw (see Figure below). This method of safety wiring is applied to wingnuts, filler plugs, single-drilled
head bolts, fillister-head screws, etc.; which are safety wired individually.
Although there are several safety wiring techniques used to secure aircraft hardware, practically all are
derived from the basic examples shown in figures below.
Cotter pins are used to secure such items as bolts, screws, pins, and shafts. The diameter of the cotter
pins selected for any application should be the largest size that will fit consistent with the diameter of
the cotter pin hole and/or the slots in the nut. Cotter pins must not be reused on aircraft.
In using the method of cotter pin safetying, as shown in Figures below, ensure the prong, bent over the
bolt, is seated firmly against the bolt shank, and does not exceed bolt diameter. Also, when the prong is
bent over the nut, ensure the bent prong is down and firmly flat against the nut and does not contact the
surface of the washer.
Turnebuckles
All turnbuckles must be safetied with safety wire using either the double or single-wrap method herein
shown, or with any appropriately approved special safetying device complying with the requirements
of FAA Technical Standard Order TSO-C21.
All lock wire used in the safetying of turnbuckles should be carbon steel, corrosion- resistant steel,
nickel-chromium iron alloy (inconel), nickel-copper alloy (monel) or aluminium alloy.
For safety cable diameter of safety wire size and material, refer to the table below (dimension in
inches):
More than a satisfactory method for turnbuckle safetying can be adopted: hereinafter are reports the
common ones.
2. Engine
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3. Propeller
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