TASK 32-42-00-810-852

 Loss of the LLG/GND2 Signal
 1. Possible Causes
_______________
 - LGCIU-2 (5GA2)

 - BSCU (10GG)

 - PROX SNSR-L L/G EXT, SYS 2 (23GA)

 - wiring from the BSCU (10GG) to the LGCIU2

 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 32-31-73-400-001  Installation of the Proximity-Sensors 9GA(8GA), 11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA), 17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA)...
 AMM 32-42-34-000-001 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 32-42/02 TSM 32-42-00-810-839 No Braking of the Wheels during the Landing Gear
 Retraction
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message CHECK LGCIU2 L SHOCK ABS SIGNAL OR L/G LEVER
 - do a check for a ground signal at pin A/13D of the BSCU (Ref. ASM 32-42/02).
 (1) If there is a ground signal:
 - (Ref. TSM TASK 32-42-00-810-839).
 「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 284
 Feb 01/04R CES

 (2) If there is no ground signal:
 - replace the PROX SNSR-L L/G EXT, SYS 2 (23GA) (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/13D to pin AB/4F (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 285
 Feb 01/04R
 CES

 TASK 32-42-00-810-853

 Loss of the RLG/GND2 Signal
 1. Possible Causes
_______________
 - LGCIU-2 (5GA2)

 - BSCU (10GG)

 - PROX SNSR-L L/G EXT, SYS 2 (22GA)

 - wiring from the BSCU (10GG) to the LGCIU2

 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 32-31-73-400-001  Installation of the Proximity-Sensors 9GA(8GA), 11GA(10GA), 27GA(26GA), 29GA(28GA), 15GA(14GA), 17GA(16GA), 21GA(20GA), 23GA(22GA), 33GA(32GA)...
 AMM 32-42-34-000-001 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 32-42/02 TSM 32-42-00-810-839 No Braking of the Wheels during the Landing Gear
 Retraction
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
　
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