1. Possible Causes
_______________
- FWC-2 (1WW2)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 31-52/03
3. Fault Confirmation
__________________
A. Test 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 FWC2 : NO DATA FROM ADC3:
- replace the FWC-2 (1WW2), (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from FWC 2 (1WW2) pins AB/8J, 8K to the first terminal block , (Ref. ASM 31-52/03).
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 277
Feb 01/05R
CES Loss of the ECU 1 Bus A of the FWC 1
1. Possible Causes
_______________
- FWC-1 (1WW1)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 31-52/03
3. Fault Confirmation
__________________
A. Test 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 : NO DATA FROM ECU1-A:
- 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:
- do a check and repair the wiring from FWC 1 (1WW1) pins AB/4A, 4B to the first terminal block , (Ref. ASM 31-52/03).
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 278
Feb 01/05R
CES Loss of the ECU 1 Bus A of the FWC 2
1. Possible Causes
_______________
- FWC-2 (1WW2)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 31-52/03
3. Fault Confirmation
__________________
A. Test 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 FWC2 : NO DATA FROM ECU1-A:
- replace the FWC-2 (1WW2), (Ref. AMM TASK 31-53-34-000-001) and (Ref. AMM TASK 31-53-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from FWC 2 (1WW2) pins AB/4A, 4B to the first terminal block , (Ref. ASM 31-52/03).
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 279
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