B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 05-002 USA MIL-P-8116 PUTTY, ZINC CHROMATE GENERAL PURPOSE (Ref. 20-31-00) Material No. 08-006 SOLVENT-BASED NITRIL RUBBER ADHESIVE (Ref. 20-31-00)
Material No. 09-013 USA MIL-PRF-81733 TYPE I CLASS A
CORROSION INHIBITING BRUSH CONSISTENCY
(Ref. 20-31-00)
Material No. 09-016 USA MIL-PRF-81733D TYPE II CLASS B
CORROSION INHIBITING FILLET CONSISTENCY
(Ref. 20-31-00)
Material No. 09-023 USA MIL-S-38249 TYPE I FIRE WALL SEALANT (Ref. 20-31-00) R Material No. 11-003 USA ASTM D 740 METHYL-ETHYL-KETONE (Ref. 20-31-00) Material No. 16-003 F ASNB70720 COATING (OBSOLETE USE 16-021) (Ref. 20-31-00)
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-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-28-00-912-004 Electrical Bonding of Components With Conductive Bolts and Screws and Bonding Straps in the Fuselage
R and in the Wings (this does not include the tanks)-52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 52-41-21-991-001 Fig. 401 52-41-21-991-002 Fig. 402
3. Job Set-up
__________
Subtask 52-41-21-860-051
A. Aircraft Maintenance Configuration
(1)
Make sure that the access platform is in position below the APU compartment.
(2)
Make sure that the warning notice is in position in the flight compartment to tell persons not to start the APU.
Subtask 52-41-21-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
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4. Procedure
_________
(Ref. Fig. 401/TASK 52-41-21-991-001) Subtask 52-41-21-210-059
A. Inspection of the Components on the APU Access Door
(1)
Examine the seals (2), (23) and (24) for damage and chafing.
(2)
Examine the seals (6), (8) and (16) around the access door opening for damage and chafing. (Ref. Fig. 402/TASK 52-41-21-991-002)
(3)
Examine the four corners of the APU access doors if the joggles are filled up with sealing compound.
(4)
Examine the access door strut bracket (7) and the bracket connection for damage.
(5)
Examine the bearings (9) and the bearing connection for damage.
(6) Examine the inner skins (3), (4), (5), (8), (25) and (26) for damage. Subtask 52-41-21-960-050
B. Replacement of the Sealing Profiles at the Door Edge
(1)
Drill out the rivets (30) and (31).
(2)
Remove the strips (27), (28) and (29).
(3)
Remove and discard the sealing profiles (23) and (24).
(4)
Apply the SEALANTS (Material No. 09-013) to the rivets (30) and (31).
(5)
Install the new sealing profiles (23) and (24) and the strips (27),
(28) and (29) with the rivets (30) and (31) to the APU access door (1).
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Subtask 52-41-21-960-051
C. Replacement of the Sealing Profiles Around the Door Frame
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
WARNING : DO NOT GET THE COMPOUND ON YOUR SKIN._______ IF YOU DO: - RUB IT OFF IMMEDIATELY WITH A CLEAN CLOTH - WASH THE SKIN WITH SOAP AND RINSE WITH CLEAN WATER.
R R R R R WARNING : YOU MUST OBEY ALL THE SAFETY PROCEDURES WHEN YOU DO WORK IN OR_______ NEAR A FUEL TANK. IF YOU DO NOT OBEY THE SAFETY PROCEDURES, THERE IS A RISK OF: - DEATH OR INJURY TO PERSONS - DAMAGE TO THE AIRCRAFT OR OTHER EQUIPMENT.
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