Loss of the FCU 2 A Bus
1. Possible Causes
_______________
- FCU (2CA)
- wiring of the FCU 2 A bus from the FCU (2CA) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 22-81-12-000-001 Removal of the FCU (2CA) AMM 22-81-12-400-001 Installation of the FCU (2CA) AMM 22-91-00-710-001 Ground Scanning of the AFS ASM 22-86/03
3. Fault Confirmation
__________________
A. Test
(1) Do the Ground Scanning of the AFS (Ref. AMM TASK 22-91-00-710-001).
4. Fault Isolation
_______________
A. If the test gives the maintenance message AFS: FCU:
- replace the FCU (2CA) (Ref. AMM TASK 22-81-12-000-001) and (Ref. AMM TASK 22-81-12-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the FCU 2 A bus from the FCU (2CA) to the first terminal block (Ref. ASM 22-86/03).
B. Do the test given in Para. 3.
Loss of the FCU 2 B Bus
1. Possible Causes
_______________
- FCU (2CA)
- wiring of the FCU 2 B bus from the FCU (2CA) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 22-81-12-000-001 Removal of the FCU (2CA) AMM 22-81-12-400-001 Installation of the FCU (2CA) AMM 22-91-00-710-001 Ground Scanning of the AFS ASM 22-86/03
3. Fault Confirmation
__________________
A. Test
(1) Do the Ground Scanning of the AFS (Ref. AMM TASK 22-91-00-710-001).
4. Fault Isolation
_______________
A. If the test gives the maintenance message AFS: FCU:
- replace the FCU (2CA) (Ref. AMM TASK 22-81-12-000-001) and (Ref. AMM TASK 22-81-12-400-001).
(1) If the fault continues:
- do a check and repair the wiring of the FCU 2 B bus from the FCU (2CA) to the first terminal block (Ref. ASM 22-86/03).
B. Do the test given in Para. 3.
Loss of the FCU 1 FAIL and FCU 1 HLTY Discretes
1. Possible Causes
_______________
- FMGC-1 (1CA1)
- FMGC-2 (1CA2)
- FCU (2CA)
- wiring of the FCU OWN HLTY discrete from the FMGC 1 (1CA1) to the first terminal block
- wiring of the FCU OWN FAIL discrete from the FMGC 1 (1CA1) to the FCU (2CA)
- wiring of the FCU OPP HLTY discrete from the FMGC 2 (1CA2) to the first block terminal
- wiring of the FCU 1 HLTY discrete from the FCU (2CA) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 22-81-12-000-001 Removal of the FCU (2CA)
AMM 22-81-12-400-001 Installation of the FCU (2CA)
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 22-85/04
3. Fault Confirmation
__________________
A. Test
(1) Do the operational test of the AFS (Ref. AMM TASK 22-96-00-710-001) and read the results for the FMGC 1 and the FMGC 2.
4. Fault Isolation
_______________
A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AUTO FLT/FCU/1 9CA1 B05 49VU AUTO FLT/FMGC/1 10CA1 B02
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本文链接地址：A320 Trouble Shooting Manual 排故手册 AUTO FLIGHT 自动飞行2(45)
