「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 227
 May 01/03R CES

 4. Fault Isolation
_______________

 A. If the AP 2 pushbutton switch does not come on:
 - do the operational test of the indicator lights and displays of the FCU (Ref. AMM TASK 22-10-00-710-005)

 - make sure that the AP 2 pushbutton switch comes on.

 (1) If this pushbutton switch comes on:
 - replace the FCU (2CA) (Ref. AMM TASK 22-81-12-000-001) and (Ref. AMM TASK 22-81-12-400-001).
 (a) If the fault continues:
 - do a check and repair the wiring of AP 2 ENGD MON OWN and AP 2 ENGD COM OWN discretes from the FCU (2CA) to the first terminal block (Ref. ASM 22-85/03).
 B. Do the test given in Para. 3.
 5. Close-up
________
 A. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
 「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 228
 May 01/03R
 CES  Loss of the FMGC 1 OWN A Bus

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

 - wiring of the FMGC OWN A (COM) bus 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 22-96-00-710-001 Operational Test of the AFS
 ASM 22-86/02

 3. Fault Confirmation

__________________
 A. Test
 (1) Do the operational test of the AFS (Ref. AMM TASK 22-96-00-710-001) and read the result for the FMGC 1.
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message AFS: FMGC1/C-M ARINC LINK:
 - 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 and repair the wiring of the FMGC OWN A (COM) bus from the FMGC 1 (1CA1) to the first terminal block (Ref. ASM 22-86/02).
 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 229
 May 01/03R
 CES  Loss of the FMGC 2 OWN A Bus

 1. Possible Causes
_______________
 - FMGC-2 (1CA2)

 - wiring of the FMGC OWN A (COM) bus from the FMGC 2 (1CA2) 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 22-96-00-710-001 Operational Test of the AFS
 ASM 22-86/02

 3. Fault Confirmation

__________________
 A. Test
 (1) Do the operational test of the AFS (Ref. AMM TASK 22-96-00-710-001) and read the result for the FMGC 2.
 4. Fault Isolation
_______________
 A. If the test gives the maintenance message AFS: FMGC2/C-M ARINC LINK:
 - replace the FMGC-2 (1CA2) (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 and repair the wiring of the FMGC OWN A (COM) bus from the FMGC 2 (1CA2) to the first terminal block (Ref. ASM 22-86/02).
 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 230
 May 01/03R
 CES  Loss of the Reception of the AP 2 ENGD Discrete Signal by the FMGC 1

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