DOC AIRBUS | TSM A320FLoss of the Reception of the LGCIU 1 Bus by the FAC 1
TASK 22-66-00-810-833-A
Loss of the Reception of the LGCIU 1 Bus by the FAC 1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 22-66-00-865-076-A
Subtask 22-66-00-810-083-A
[Rev.8 from Aug 2018]
2026.04.04 04:25:18 UTC
Loss of the Reception of the LGCIU 1 Bus by the FAC 1
1. Possible Causes
- FAC-1 [1CC1]
wiring of the LGCIU OWN 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 22-91-00-710-001 | Ground Scanning of the AFS |
Subtask 22-66-00-865-076-A
A. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 22-66-00-710-114-A 4. Fault Isolation| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | L/G/LGCIU/SYS1/NORM | 1GA | C09 |
| 121VU | HYDRAULIC/LGCIU/SYS1/GRND SPLY | 52GA | Q34 |
Subtask 22-66-00-810-083-A
A. If the test gives the maintenance message AFS: LGCIU1:
Subtask 22-66-00-710-115-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 LGCIU OWN bus from the FAC 1 (1CC1) to the first terminal block ASM 226901.
B. Do the test given in Para. 3.