DOC AIRBUS | TSM A320FLoss of the R Ice Detector
TASK 30-81-00-810-803-A
Loss of the R Ice Detector
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 30-81-00-710-054-B 4. Fault Isolation
Subtask 30-81-00-865-052-A
[Rev.8 from Aug 2018]
2026.04.04 04:29:47 UTC
Loss of the R Ice Detector
1. Possible Causes
- DET-ICE, R [2DD2]
wiring between pin A/7 of the R ice detector and the ground terminal wiring between pin A/1 of the R ice detector and the circuit breaker (4DD2) - C/B-ANTI ICE/ICE DET/R [4DD2]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 24-00-00-810-803-A | Circuit Breaker Tripped and/or C/B TRIPPED Warning |
| AMM 30-81-00-710-001 | Operational Test of the Ice Detection System |
| ASM 308101 | |
| AMM 30-81-31-000-001 | Removal of the Ice Detector |
| AMM 30-81-31-400-001 | Installation of the Ice Detector |
Subtask 30-81-00-710-054-B 4. Fault Isolation
Subtask 30-81-00-865-052-A
A. Table of the circuit breakers used in this procedure:
Subtask 30-81-00-810-052-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 122VU | ANTI ICE/ICE DET/R | 4DD2 | V13 |
B. If the test gives the maintenance message ICE DETECTOR 2:
Subtask 30-81-00-710-055-A - do a check of the status of the circuit breaker (4DD2).
- do a check for 115VAC at pin A/1 of the R ice detector (2DD2).
- replace the DET-ICE, R [2DD2] AMM 30-81-31-000-001 and AMM 30-81-31-400-001.
- do a check for a ground signal at pin A/7 of the R ice detector (2DD2).
- repair the
wiring between pin A/7 of the R ice detector and the ground terminal ASM 308101.
- do a check of the
wiring between pin A/1 of the R ice detector and the circuit breaker (4DD2) .
- repair the above wiring.
- replace the circuit breaker (4DD2).
- Do the procedure (Ref. TSM TASK 24-00-00-810-803).
- Replace the C/B-ANTI ICE/ICE DET/R [4DD2] .
- Replace the DET-ICE, R [2DD2] .
C. Do the operational test given in Para. 3.