DOC AIRBUS | TSM A320FLoss of the Reception of the ELAC OPP Bus by the FAC 1 MON or the FAC 1 COM
TASK 22-66-00-810-843-A
Loss of the Reception of the ELAC OPP Bus by the FAC 1 MON or the FAC 1 COM
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 22-66-00-865-060-A
Subtask 22-66-00-810-099-A
[Rev.8 from Aug 2018]
2026.04.04 04:25:19 UTC
Loss of the Reception of the ELAC OPP Bus by the FAC 1 MON or the FAC 1 COM
1. Possible Causes
- FAC-1 [1CC1]
wiring of the ELAC OPP bus from the FAC 1 (1CC1) to the first terminal block
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 22-66-34-000-002 | Removal of the FAC |
| AMM 22-66-34-400-002 | Installation of the FAC |
| ASM 226901 | |
| AMM 22-96-00-710-001 | Operational Test of the AFS |
Subtask 22-66-00-865-060-A
A. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 22-66-00-710-134-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
B. Test
(1) Do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FAC 1.
4. Fault Isolation(1) Do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FAC 1.
Subtask 22-66-00-810-099-A
A. If the test gives the maintenance message AFS: FAC1/ELAC2 BUS WIRG:
Subtask 22-66-00-710-135-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 ELAC OPP bus from the FAC 1 (1CC1) to the first terminal block ASM 226901.
B. Do the test given in Para. 3.