3. Fault Confirmation
__________________
A. Test
(1) Do a check of the Post Flight Report (PFR) to see if other systems have also identified the same fault.
NOTE : If other systems also identify the same loss of data, the
____ fault will be in the LGCIU, or the bus wiring which is the same for all those systems. If only one system has identified the loss of data, the fault will be in that system or the wiring which is applicable to that system only.
(2) Do the BITE test of the EFCS (Ground Scanning) (Ref. AMM TASK 27-96-00-740-001)
- if the message NO FAULTS RECORDED is shown, no other maintenance work is necessary
- if the message LGCIU2 BUS2 is shown do the fault isolation procedure in Para. 4.A.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-31-00∞∞∞∞∞∞∞∞∞∞Page A207
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CES
4. Fault Isolation
_______________
A. Procedure
(1) Interchange the LGCIU-2 with the LGCIU-1 (Ref. AMM TASK 32-31-71-000-001), (Ref. AMM TASK 32-31-71-400-001).
(a) Do the test in Para. 3.A.(2):
- if the fault continues, do step (3)
- if the fault goes, do the next step.
(2) Install the LGCIUs in their initial locations and replace the LGCIU-2 (5GA2).
(a) Do the test in Para. 3.A.(2):
- if the fault continues and has been identified by other systems, do step (4)
- if the fault continues and has been identified by the EFCS only, do the next step.
(3) Replace the SEC-1 (1CE1), (Ref. AMM TASK 27-94-34-000-001) and (Ref. AMM TASK 27-94-34-400-001).
(a) Do the test in Para. 3.A.(2):
- if the fault continues, do the next step.
(4) Do a check and repair as necessary the LGCIU-2 BUS 2 aircraft wiring between the LGCIU-2 ARINC connector tray and the SEC-1 (Ref. AWM 32-61-06) and (Ref. AWM 27-92-51).
(5) Do the test in Para. 3.A.(2).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-31-00∞∞∞∞∞∞∞∞∞∞Page A208
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R TASK 32-31-00-810-846
R L/G Failure of one of the uplock proximity sensors 8GA thru 13GA
R WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ R GEAR.
R WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ R CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
R 1. Possible Causes
_______________
R - PROX SNSR-R L/G UPLK, SYS 1 (8GA)
R - PROX SNSR-L L/G UPLK, SYS 1 (9GA)
R - PROX SNSR-NLG UPLK, SYS 1 (12GA)
R - PROX SNSR-R L/G UPLK, SYS 2 (10GA)
R - PROX SNSR-L L/G UPLK, SYS 2 (11GA)
R - UPLOCK ASSY-MLG, L (2509GM)
R - UPLOCK ASSY-NLG (2530GM)
R - PROX SNSR-NLG UPLK, SYS 2 (13GA)
R - UPLOCK ASSY-MLG, R (2510GM)
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 29-10-00-863-001 R AMM 29-10-00-864-001 R AMM 32-00-00-860-001 R R AMM 32-12-00-010-001 R AMM 32-22-00-010-001 R AMM 32-31-21-000-001 R AMM 32-31-21-400-001 R AMM 32-31-44-000-001 R AMM 32-31-44-400-001 R R AMM 32-31-73-000-001 R R R R AMM 32-31-73-000-005 R R R AMM 32-31-73-400-001 R R
Pressurize the Green Hydraulic System
Depressurize the Green Hydraulic System
Flight Configuration Precautions with Electrical
Power
Open the Main Gear Doors for Access
Nose Gear Doors - Ground Doors Opening
Removal of the NLG Uplock Assy (2530GM)
Installation of the NLG Uplock Assy (2530GM)
Removal of the MLG Uplock Assembly 2509GM (2510GM)
Installation of the MLG Uplock Assembly 2509GM
(2510GM)
Removal of the Proximity-Sensors 9GA(8GA),
11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA),
17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA),
35GA(34GA)
Removal of the NLG Proximity-Sensors 12GA, 13GA,
18GA, 19GA, 24GA, 25GA, 30GA, 31GA, 37GA (36GA), 39GA
(38GA)
Installation of the Proximity-Sensors 9GA(8GA),
11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA),
17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA)...
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