DOC AIRBUS | TSM A320FLoss of the Angle-of-Attack Sensor Output-Discrete from the PHC 2
TASK 30-31-00-810-847-A
Loss of the Angle-of-Attack Sensor Output-Discrete from the PHC 2
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 30-31-00-710-142-A 4. Fault Isolation
Subtask 30-31-00-810-096-A
[Rev.8 from Aug 2018]
2026.04.04 04:29:38 UTC
Loss of the Angle-of-Attack Sensor Output-Discrete from the PHC 2
1. Possible Causes
- PHC-2 [6DA2]
wiring from the PHC 2 (6DA2) to the ADIRU 2 (1FP2)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 34-11-00-810-830-A | Loss of the Angle of Attack Sensor 2 |
| TSM TASK 34-13-00-810-907-A | Loss of the AOA 2 Input to the ADR 2 |
| AMM 30-31-00-710-001 | Operational Test of the Probe Ice Protection |
| ASM 303102 | |
| AMM 30-31-34-000-002 | Removal of the Probe Heat Computer (PHC) |
| AMM 30-31-34-400-002 | Installation of the Probe Heat Computer (PHC) |
| AMM 34-13-00-740-002 | INTERFACE TEST of the ADR |
| ASM 341302 |
Subtask 30-31-00-710-142-A 4. Fault Isolation
Subtask 30-31-00-810-096-A
A. If the test gives the maintenance message:
CHECK ADIRU2 AOA PHC2 INTERFACE:
Subtask 30-31-00-710-143-A CHECK ADIRU2 AOA PHC2 INTERFACE:
- do a check for ground at pin A/Z of the PCH 2 (6DA2) ASM 303102.
- replace the PHC-2 [6DA2] , AMM 30-31-34-000-002 and AMM 30-31-34-400-002.
- do a check and repair the
wiring from the PHC 2 (6DA2) to the ADIRU 2 (1FP2) pin A/Z to pin AA/3J ASM 341302.
- do the INTERFACE TEST of the ADR (system 2) AMM 34-13-00-740-002
- do the necessary corrective actions (Ref. TSM TASK 34-13-00-810-907) and (Ref. TSM TASK 34-11-00-810-830).
B. Do the test given in Para. 3.