_______________
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 3 : NO FCU 1B DATA:
 - replace the DMC-3 (1WT3) (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 3 (1WT3) pins AA/2D, 2E to the first terminal block (Ref. ASM 31-62/01).
R **ON A/C 401-499,
 A. If the test gives the maintenance message FCU1(2CA)BUS FCU1B/DMC3(1WT3):
 - replace the DMC-3 (1WT3) (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 3 (1WT3) pins AA/1C, 1D 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 FGC 1 Output Bus by the DMC 3
 1. Possible Causes
_______________
 - DMC-3 (1WT3)

 - 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 3 : NO FGC 1 DATA:
 - replace the DMC-3 (1WT3) (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 3 (1WT3) pins AA/3A, 3B 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)BUS1 FG1/DMC3(1WT3):
 - replace the DMC-3 (1WT3) (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 3 (1WT3) pins AA/3C, 3D 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 FGC 2 Output Bus by the DMC 3
 1. Possible Causes
_______________
 - DMC-3 (1WT3)

 - 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 3 : NO FGC 2 DATA:
　
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