**ON A/C ALL R Post SB 34-1147 For A/C 001-004,051-060,
A. If the test gives the maintenance message:
FWC2: NO DATA FROM MMR 1
- 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 the FWC 2 (1WW2) pins AB/7C, 7D to the first terminal block (Ref. ASM 31-52/03).
**ON A/C ALL
B. Do the test given in Para. 3.
Loss of the ILS 2 Bus 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
(1) Do the operational test of the central warning systems (FWC) (Ref. AMM TASK 31-50-00-710-001).
4. Fault Isolation
_______________ R **ON A/C 001-004, 051-060,
A. If the test gives the maintenance message FWC 1 : NO DATA FROM ILS 2:
- 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 the FWC 1 (1WW1) pins AE/7G, 7H to the first terminal block , (Ref. ASM 31-52/03).
R Post SB 34-1147 For A/C 001-004,051-060,
A. If the test gives the maintenance message
FWC1: NO DATA FROM MMR 2
- 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 the FWC 1 (1WW1) pins AE/7G, 7H to the first terminal block (Ref. ASM 31-52/03).
**ON A/C ALL
B. Do the test given in Para. 3.
Loss of the ILS 2 Bus 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
(1) Do the operational test of the central warning systems (FWC) (Ref. AMM TASK 31-50-00-710-001).
4. Fault Isolation
_______________ R **ON A/C 001-004, 051-060,
A. If the test gives the maintenance message FWC 2 : NO DATA FROM ILS 2:
- 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 the FWC 2 (1WW2) pins AE/7G, 7H to the first terminal block , (Ref. ASM 31-52/03).
R Post SB 34-1147 For A/C 001-004,051-060,
A. If the test gives the maintenance message
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