DOC AIRBUS | TSM A320FLoss of the ADM BUS Input to the ADIRU1
TASK 34-11-00-810-880-A
Loss of the ADM BUS Input to the ADIRU1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-11-00-740-116-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-11-00-810-192-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:32:18 UTC
Loss of the ADM BUS Input to the ADIRU1
1. Possible Causes
- ADIRU-1 [1FP1]
- wiring between the ADIRU1 and the first terminal block
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 34-12-34-000-001 | Removal of the ADIRU |
| AMM 34-12-34-400-001 | Installation of the ADIRU |
| AMM 34-13-00-740-002 | INTERFACE TEST of the ADR |
| ASM 341303 |
Subtask 34-11-00-740-116-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-11-00-810-192-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message
ADIRU1 (1FP1)/ WRG: ADM DC SUPPLY TO ADM:
Subtask 34-11-00-740-117-A ** ON A/C NOT FOR ALL ADIRU1 (1FP1)/ WRG: ADM DC SUPPLY TO ADM:
- replace the ADIRU-1 [1FP1] , AMM 34-12-34-000-001 and AMM 34-12-34-400-001.
- remove the ADIRU1
- do a check and repair the wiring between the ADIRU1 and the first terminal block : pins AA/6G, 6H, 6J of the ADIRU1 ASM 341303.
- install the ADIRU1.
B. Do the test given in Para. 3.