Loss of the LH FLP SYNC Signal Output of the Flap IPPU to the FWC 1
1. Possible Causes
_______________
- FWC-1 (1WW1)
- IPPU-FLAP (3CN)
- wiring from the FWC 1 (1WW1) to the flap IPPU (3CN)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 27-55-11-000-001 Removal of the Instrumentation Position Pick-Off Unit AMM 27-55-11-400-001 Installation of the Instrumentation Position Pick-Off
Unit
AMM 31-50-00-710-001 Ground Scanning of the Central Warning System
AMM 31-53-34-000-001 Removal of the Flight Warning Computer (FWC)
(1WW1,1WW2) AMM 31-53-34-400-001 Installation of the Flight Warning Computer (FWC) (1WW1,1WW2) ASM 27-55/01
3. Fault Confirmation
__________________
A. Do the operational test of the central warning systems (FWC) (Ref. AMM TASK 31-50-00-710-001).
4. Fault Isolation
_______________
A. If the test gives the maintenance message FWC1: LH FLP SYNC 3CNA:
- replace the FWC-1 (1WW1) (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
(1) If the fault continues:
- replace the IPPU-FLAP (3CN) (Ref. AMM TASK 27-55-11-000-001) and (Ref. AMM TASK 27-55-11-400-001).
(a) If the fault continues:
- do a check and repair the wiring from the FWC 1 (1WW1) to the flap IPPU (3CN), between pins AA/13B, 13C, 13D and pins A/C, D, E (Ref. ASM 27-55/01).
B. Do the test given in Para. 3.
「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 ∞∞31-53-00∞∞∞∞∞∞∞∞∞∞Page A204
Feb 01/05R CES
Loss of the RH FLP SYNC Signal Output of the Flap IPPU to the FWC 1
1. Possible Causes
_______________
- FWC-1 (1WW1)
- IPPU-FLAP (3CN
- wiring from the FWC1 (1WW1) to the flap IPPU (3CN)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 27-55-11-000-001 Removal of the Instrumentation Position Pick-Off Unit AMM 27-55-11-400-001 Installation of the Instrumentation Position Pick-Off
Unit
AMM 31-50-00-710-001 Ground Scanning of the Central Warning System
AMM 31-53-34-000-001 Removal of the Flight Warning Computer (FWC)
(1WW1,1WW2) AMM 31-53-34-400-001 Installation of the Flight Warning Computer (FWC) (1WW1,1WW2) ASM 27-55/01
3. Fault Confirmation
__________________
A. Do the operational test of the central warning systems (FWC) (Ref. AMM TASK 31-50-00-710-001).
4. Fault Isolation
_______________
A. If the test gives the maintenance message FWC1: RH FLP SYNC 3CNB:
- replace the FWC-1 (1WW1) (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
(1) If the fault continues:
- replace the IPPU-FLAP (3CN (Ref. AMM TASK 27-55-11-000-001) and (Ref. AMM TASK 27-55-11-400-001).
(a) If the fault continues:
- do a check and repair the wiring from the FWC1 (1WW1) to the flap IPPU (3CN), between pins AD/13F, 13G, 13H and pins B/C, D, E (Ref. ASM 27-55/01).
B. Do the test given in Para. 3.
「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 ∞∞31-53-00∞∞∞∞∞∞∞∞∞∞Page A205
Feb 01/05R CES
Loss of the CFDIU Output Bus by the FWC 1
1. Possible Causes
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