DOC AIRBUS | TSM A320FLoss of the FAC 1 HLTY MON OPP Discrete Signal
TASK 22-66-00-810-808-A
Loss of the FAC 1 HLTY MON OPP Discrete Signal
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 22-66-00-710-062-A
Subtask 22-66-00-810-057-A
[Rev.8 from Aug 2018]
2026.04.04 04:25:16 UTC
Loss of the FAC 1 HLTY MON OPP Discrete Signal
1. Possible Causes
- FAC-1 [1CC1]
wiring of the FAC HLTY MON OPP discrete (from the FAC 1 (1CC1) to the first terminal block)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| ASM 226501 | |
| AMM 22-66-34-000-002 | Removal of the FAC |
| AMM 22-66-34-400-002 | Installation of the FAC |
| AMM 22-96-00-710-001 | Operational Test of the AFS |
Subtask 22-66-00-710-062-A
A. Test
(1) Do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FMGC 2.
4. Fault Isolation(1) Do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FMGC 2.
Subtask 22-66-00-810-057-A
A. If the test gives the maintenance message AFS: FMGC2/FAC1 (HLTY CKT):
Subtask 22-66-00-710-063-A - replace the FAC-1 [1CC1] , AMM 22-66-34-000-002 and AMM 22-66-34-400-002.
- do a check and repair the
wiring of the FAC HLTY MON OPP discrete (from the FAC 1 (1CC1) to the first terminal block) , ASM 226501.
B. Do the test given in Para. 3.