DOC AIRBUS | TSM A320FLoss of the ADR 3 BUS 2 Output Identified by the AFS
TASK 34-13-00-810-869-A
Loss of the ADR 3 BUS 2 Output Identified by the AFS
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-13-00-710-128-A 4. Fault Isolation
Subtask 34-13-00-810-118-A
[Rev.8 from Aug 2018]
2026.04.04 04:32:25 UTC
Loss of the ADR 3 BUS 2 Output Identified by the AFS
1. Possible Causes
- ADIRU-3 [1FP3]
wiring of the ADR OUTPUT BUS 2 bus from the ADIRU 3 (1FP3) to the first terminal block
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 22-91-00-710-001 | Ground Scanning of the AFS |
| AMM 34-12-34-000-001 | Removal of the ADIRU |
| AMM 34-12-34-400-001 | Installation of the ADIRU |
| ASM 341301 |
Subtask 34-13-00-710-128-A 4. Fault Isolation
Subtask 34-13-00-810-118-A
A. If the test gives the maintenance message AFS : ADIRU 3:
Subtask 34-13-00-710-129-A - replace the ADIRU-3 [1FP3] AMM 34-12-34-000-001 and AMM 34-12-34-400-001.
- do a check and repair the
wiring of the ADR OUTPUT BUS 2 bus from the ADIRU 3 (1FP3) to the first terminal block ASM 341301.
B. Do the test given in Para. 3.