DOC AIRBUS | TSM A320FFailure of the Cooling Air System of the IR1
TASK 34-14-00-810-920-A
Failure of the Cooling Air System of the IR1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-14-00-740-251-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-14-00-810-174-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:32:49 UTC
Failure of the Cooling Air System of the IR1
1. Possible Causes
- ADIRU-1 [1FP1]
- cooling air system
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 34-14-00-740-001 | Interface Test of the IR |
Subtask 34-14-00-740-251-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-14-00-810-174-A ** ON A/C NOT FOR ALL
A. If the maintenance message ADIRU1 (1FP1)/OVER TEMPERATURE is shown:
Subtask 34-14-00-740-252-A ** ON A/C NOT FOR ALL - remove the ADIRU-1 [1FP1] AMM 34-12-34-000-001
- do a check of the cooling air system .
- install a new ADIRU 1 AMM 34-12-34-400-001.
- repair it and install the ADIRU 1.
B. Do the test given in Para. 3.