DOC AIRBUS | TSM A320FLoss of the ADR 3 BUS 2 Output Identified by the ATC 2
TASK 34-13-00-810-886-A
Loss of the ADR 3 BUS 2 Output Identified by the ATC 2
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-13-00-740-148-A 4. Fault Isolation
Subtask 34-13-00-810-135-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:32:26 UTC
Loss of the ADR 3 BUS 2 Output Identified by the ATC 2
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 34-12-34-000-001 | Removal of the ADIRU |
| AMM 34-12-34-400-001 | Installation of the ADIRU |
| ASM 341301 | |
| AMM 34-52-00-740-004 | BITE Test of the ATC |
Subtask 34-13-00-740-148-A 4. Fault Isolation
Subtask 34-13-00-810-135-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message ATC 2 : NO DATA FROM ADIRU:
Subtask 34-13-00-810-135-B ** ON A/C NOT FOR ALL - 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.
A. If the test gives the maintenance message ADIRU 2/3 (1FP2/3)/ ATC2 (1SH2) :
Subtask 34-13-00-740-149-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.