DOC AIRBUS | TSM A320FLoss of the AOA 3 Input to the ADR 3
TASK 34-13-81-810-839-A
Loss of the AOA 3 Input to the ADR 3
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-13-81-740-103-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-13-81-810-090-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:32:36 UTC
Loss of the AOA 3 Input to the ADR 3
1. Possible Causes
- ADIRU-3 [1FP3]
- wiring between the ADIRU3 and the angle-of-attack sensor 3
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| ASM 341102 | |
| AMM 34-12-34-000-001 | Removal of the ADIRU |
| AMM 34-12-34-400-001 | Installation of the ADIRU |
| AMM 34-13-00-740-002 | INTERFACE TEST of the ADR |
Subtask 34-13-81-740-103-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 34-13-81-810-090-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message AOA SENSOR (3FP3)/ADIRU3 (1FP3):
Subtask 34-13-81-740-104-A ** ON A/C NOT FOR ALL - replace the ADIRU-3 [1FP3] AMM 34-12-34-000-001 and AMM 34-12-34-400-001.
- remove the ADIRU3
- disconnect the electrical connector of the angle-of-attack sensor 3
- do a check and repair the wiring between the ADIRU3 and the angle-of-attack sensor 3 : pins AOA INPUT 1 and 2 of the ADIRU3 ASM 341102
- install the ADIRU3
- connect the electrical connector of the angle-of-attack sensor 3.
B. Do the test given in Para. 3.