DOC AIRBUS | TSM A320FFailure of the Cooling Air System of the IR3
TASK 34-14-00-810-922-A
Failure of the Cooling Air System of the IR3
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-14-00-740-255-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-14-00-810-176-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:32:50 UTC
Failure of the Cooling Air System of the IR3
1. Possible Causes
- ADIRU-3 [1FP3]
- 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 34-14-00-740-255-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-14-00-810-176-A ** ON A/C NOT FOR ALL
A. If the maintenance message ADIRU3 (1FP3)/OVER TEMPERATURE is shown:
Subtask 34-14-00-740-256-A ** ON A/C NOT FOR ALL - remove the ADIRU-3 [1FP3] AMM 34-12-34-000-001
- do a check of the cooling air system .
- install a new ADIRU 3 AMM 34-12-34-400-001.
- repair it and install the ADIRU 3.
B. Do the test given in Para. 3.