(2) If there is no ground signal:
- replace the PROX SNSR-L L/G EXT, SYS 2 (22GA) (Ref. AMM TASK 32-31-73-000-001) (Ref. AMM TASK 32-31-73-400-001).
(a) If the fault continues:
- replace the LGCIU-2 (5GA2) (Ref. AMM TASK 32-31-71-000-001) (Ref. AMM TASK 32-31-71-400-001).
(b) If the fault continues:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) (Ref. AMM TASK 32-42-34-400-001).
(c) If the fault continues:
- do a check and repair the wiring from the BSCU (10GG) to the LGCIU2 pin A/14D to pin AB/2J (Ref. ASM 32-42/02).
B. Do the test given in Para.3.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 ∞∞32-42-00∞∞∞∞∞∞∞∞∞∞Page 287
Feb 01/04R
CES
TASK 32-42-00-810-854
Loss of the NLG/DLK Signal
1. Possible Causes
_______________
- BSCU (10GG)
- LGCIU-2 (5GA2)
- LGCIU-1 (5GA1)
- PROX SNSR-NLG DNLK, SYS 2 (19GA)
- wiring from the BSCU (10GG) to the LGCIU2 (5GA2)
- PROX SNSR-NLG DNLK, SYS 1 (18GA)
- wiring from the BSCU (10GG) to the LGCIU1 (5GA1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-31-71-000-001 Removal of the LGCIU (5GA1, 5GA2)
AMM 32-31-71-400-001 Installation of the LGCIU (5GA1, 5GA2)
AMM 32-31-73-000-001 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)
AMM 32-31-73-000-005 Removal of the NLG Proximity-Sensors 12GA, 13GA, 18GA, 19GA, 24GA, 25GA, 30GA, 31GA, 37GA (36GA), 39GA R (38GA)
AMM 32-31-73-400-001 Installation of the Proximity-Sensors 9GA(8GA), 11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA), 17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA)...
AMM 32-31-73-400-005 Installation of the NLG Proximity-Sensors 12GA, 13GA, 18GA, 19GA, 24GA, 25GA, 30GA, 31GA, 37GA (36GA), 39GA R (38GA) AMM 32-42-34-000-001 Removal of the Braking/Steering Control Unit (BSCU) (10GG) AMM 32-42-34-400-001 Installation of the Braking/Steering Control Unit
(BSCU) (10GG)
AMM 32-46-00-740-001 BITE Test of the BSCU
ASM 32-42/01
3. Fault Confirmation
__________________
A. Test Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
A. If the test gives the maintenance message CHECK LGCIU1/2 NOSE DN/LK SIGNAL:
- do a check for a ground signal at pin A/11G of the BSCU (10GG) (Ref. ASM 32-42/01).
(1) If there is a ground signal:
- do a check for a ground signal at pin A/12D of the BSCU (10GG) (Ref. ASM 32-42/01).
(a) If there is a ground signal:
- replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) (Ref. AMM TASK 32-42-34-400-001).
(b) If there is no ground signal:
- replace the PROX SNSR-NLG DNLK, SYS 2 (19GA) (Ref. AMM TASK 32-31-73-000-005) (Ref. AMM TASK 32-31-73-400-005).
1 If the fault continues:
_
- do a check of the wiring from the BSCU (10GG) to the LGCIU2 (5GA2) pin A/12D to pin AB/12B (Ref. ASM 32-42/01).
a If there is continuity:
_
- replace the LGCIU-2 (5GA2) (Ref. AMM TASK 32-31-71-000-001) (Ref. AMM TASK 32-31-71-400-001).
b If there is no continuity:
_ - repair the related wiring.
(2) If there is no ground signal:
- replace the PROX SNSR-NLG DNLK, SYS 1 (18GA) (Ref. AMM TASK 32-31-73-000-001) (Ref. AMM TASK 32-31-73-400-001)
(a) If the fault continues:
- do a check of the wiring from the BSCU (10GG) to the LGCIU1 (5GA1) pin A/11G to pin AB/12B (Ref. ASM 32-42/01).
1 If there is continuity:
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本文链接地址：A320 Trouble Shooting Manual 排故手册 起落架 LANDING GEAR 2(6)
