DOC AIRBUS | TSM A320FLoss of the L Static Probe Output-Discrete from the PHC 1
TASK 30-31-00-810-843-A
Loss of the L Static Probe Output-Discrete from the PHC 1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 30-31-00-710-134-A 4. Fault Isolation
Subtask 30-31-00-810-092-A
[Rev.8 from Aug 2018]
2026.04.04 04:29:37 UTC
Loss of the L Static Probe Output-Discrete from the PHC 1
1. Possible Causes
- PHC-1 [6DA1]
wiring from the PHC 1 (6DA1) to the ADIRU 1 (1FP1)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 30-31-00-710-001 | Operational Test of the Probe Ice Protection |
| ASM 303101 | |
| 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 30-31-00-710-134-A 4. Fault Isolation
Subtask 30-31-00-810-092-A
A. If the test gives the maintenance message CHECK ADIRU 1 - L STATIC PHC 1 INTERFACE:
Subtask 30-31-00-710-135-A - do a check for ground at pin A/X of the PHC 1 (6DA1) ASM 303101.
- replace the PHC-1 [6DA1] AMM 30-31-34-000-002 and AMM 30-31-34-400-002.
- do a check and repair the
wiring from the PHC 1 (6DA1) to the ADIRU 1 (1FP1) , pin A/X to pin AA/4G ASM 341302.
- do the INTERFACE TEST of the ADR (system 1) AMM 34-13-00-740-002
- do the necessary corrective actions: (TSM chapter 34).
B. Do the operational test given in Para. 3.