Loss of the FMC 2 Output Bus by the DMC 2
1. Possible Causes
_______________
- DMC-2 (1WT2)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-60-00-740-002 EIS Input Test
AMM 31-60-00-740-007 GROUND SCANNING Test of the DMC
AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3)
AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3)
ASM 31-62/01
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
121VU AUTO FLT/FMGC/2 10CA2 M17
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
B. Test
Do the EIS input test (Ref. AMM TASK 31-60-00-740-002).
R **ON A/C 401-499,
B. Test Do the Ground Scanning Test of the DMC (Ref. AMM TASK 31-60-00-740-007).
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the test gives the maintenance message DMC 2 : NO FMC 2 DATA:
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the DMC 2 (1WT2) pins AA/4J, 4K to the first terminal block (Ref. ASM 31-62/01).
R **ON A/C 401-499,
A. If the test gives the maintenance message FMGC2(1CA2)BUS FM2/DMC2(1WT2):
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the DMC 2 (1WT2) pins AA/3J, 3K to the first terminal block (Ref. ASM 31-62/01).
**ON A/C ALL
B. Do the test given in Para. 3.B.
Loss of the FMC 1 Output Bus by the DMC 2
1. Possible Causes
_______________
- DMC-2 (1WT2)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 31-60-00-740-002 EIS Input Test
AMM 31-60-00-740-007 GROUND SCANNING Test of the DMC
AMM 31-63-34-000-001 Removal of the DMC (1WT1,1WT2,1WT3)
AMM 31-63-34-400-001 Installation of the DMC (1WT1,1WT2,1WT3)
ASM 31-62/01
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AUTO FLT/FMGC/1 10CA1 B02
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
B. Test
Do the EIS input test (Ref. AMM TASK 31-60-00-740-002).
R **ON A/C 401-499,
B. Test Do the Ground Scanning Test of the DMC (Ref. AMM TASK 31-60-00-740-007).
4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
A. If the test gives the maintenance message DMC 2 : NO FMC 1 DATA:
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the DMC 2 (1WT2) pins AA/4A, 4B to the first terminal block (Ref. ASM 31-62/01).
R **ON A/C 401-499,
A. If the test gives the maintenance message FMGC1(1CA1)BUS FM1/DMC2(1WT2):
- replace the DMC-2 (1WT2) (Ref. AMM TASK 31-63-34-000-001) and (Ref. AMM TASK 31-63-34-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the DMC 2 (1WT2) pins AA/3A, 3B to the first terminal block (Ref. ASM 31-62/01).
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