DOC AIRBUS | TSM A320FInternal Failure of the IR1 Identified by the TCAS
TASK 34-14-00-810-844-A
Internal Failure of the IR1 Identified by the TCAS
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-14-00-740-121-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-14-00-810-093-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:32:45 UTC
Internal Failure of the IR1 Identified by the TCAS
1. Possible Causes
- ADIRU-1 [1FP1]
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 34-43-00-740-001 | BITE Test of the TCAS |
Subtask 34-14-00-740-121-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-14-00-810-093-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message ADIRU1 (1FP1)/TCAS (1SG):
Subtask 34-14-00-740-172-A ** ON A/C NOT FOR ALL - replace the ADIRU-1 [1FP1] AMM 34-12-34-000-001 and AMM 34-12-34-400-001.
B. Do the test given in Para. 3.