_______________
 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
 A. If the test gives the maintenance message DMC 1 : NO FMC 1 DATA:
 - replace the FMGC-1 (1CA1) (Ref. AMM TASK 22-83-34-000-001) and (Ref. AMM TASK 22-83-34-400-001).
 (1) If the fault continues:
 - do a check of the wiring of the EIS (COM) bus from the FMGC 1 (1CA1) to the first terminal block (Ref. ASM 22-86/02).
 (a) If there is no continuity:

 - repair the above wiring.

 (b) If there is continuity:

 - do a check and repair the wiring of the FMGC HLTY discretes (from the FMGC 1 (1CA1) to the first terminal block) (Ref. ASM 22-85/04).
R **ON A/C 106-149, 303-399, 401-499,
 A. If the test gives the maintenance message FMGC1(1CA1)BUS FM1 TO EIS/DMC1(1WT1)
 - replace the FMGC-1 (1CA1) (Ref. AMM TASK 22-83-34-000-001) and (Ref. AMM TASK 22-83-34-400-001).
 (1) If the fault continues:
 - do a check of the wiring of the EIS (COM) bus from the FMGC 1 (1CA1) to the first terminal block (Ref. ASM 22-86/02).
 (a) If there is no continuity:

 - repair the above wiring.

 (b) If there is continuity:

 - do a check and repair the wiring of the FMGC HLTY discretes (from the FMGC 1 (1CA1) to the first terminal block) (Ref. ASM 22-85/04).
 **ON A/C ALL
 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 ∞∞22-11-00∞∞∞∞∞∞∞∞∞∞Page 239
 Aug 01/05 CES Loss of the FMGC 1 EIS COM Bus (Source EIS 2)

 1. Possible Causes
_______________
 - FMGC-1 (1CA1)

 - wiring of the EIS (COM) bus from the FMGC 1 (1CA1) to the first terminal block

 - wiring of the FMGC HLTY discretes (from the FMGC 1 (1CA1) to the first terminal block)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 22-83-34-000-001 Removal of the FMGC (1CA1,1CA2)
 AMM 22-83-34-400-001 Installation of the FMGC (1CA1,1CA2)
 AMM 31-60-00-740-002 EIS Input Test
 AMM 31-60-00-740-007 GROUND SCANNING Test of the DMC
 ASM 22-85/04
 ASM 22-86/02

 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
 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
 B. Test
 (1) Do the BITE test of the EIS (System 2) (Ref. AMM TASK 31-60-00-740-002).
R **ON A/C 106-149, 303-399, 401-499,
 B. Test
 (1) Do the Ground Scanning Test of the DMC (Ref. AMM TASK 31-60-00-740-007).
 「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 ∞∞22-11-00∞∞∞∞∞∞∞∞∞∞Page 240
 Aug 01/05 CES 4. Fault Isolation

_______________
 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
 A. If the test gives the maintenance message DMC 2 : NO FMC 1 DATA:
 - replace the FMGC-1 (1CA1) (Ref. AMM TASK 22-83-34-000-001) and (Ref. AMM TASK 22-83-34-400-001).
 (1) If the fault continues:
 - do a check of the wiring of the EIS (COM) bus from the FMGC 1 (1CA1) to the first terminal block (Ref. ASM 22-86/02).
 (a) If there is no continuity:

 - repair the above wiring.

 (b) If there is continuity:

 - do a check and repair the wiring of the FMGC HLTY discretes (from the FMGC 1 (1CA1) to the first terminal block) (Ref. ASM 22-85/04).
R **ON A/C 106-149, 303-399, 401-499,
 A. If the test gives the maintenance message FMGC1(1CA1)BUS FM1 TO EIS/DMC2(1WT2)
 - replace the FMGC-1 (1CA1) (Ref. AMM TASK 22-83-34-000-001) and (Ref. AMM TASK 22-83-34-400-001).
 (1) If the fault continues:
 - do a check of the wiring of the EIS (COM) bus from the FMGC 1 (1CA1) to the first terminal block (Ref. ASM 22-86/02).
 (a) If there is no continuity:

 - repair the above wiring.

 (b) If there is continuity:

 - do a check and repair the wiring of the FMGC HLTY discretes (from the FMGC 1 (1CA1) to the first terminal block) (Ref. ASM 22-85/04).
　
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