DOC AIRBUS | TSM A320FLoss of the CFDIU Data Input Bus on the ADIRU1
TASK 34-13-00-810-956-A
Loss of the CFDIU Data Input Bus on the ADIRU1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 34-13-00-740-275-A 4. Fault Isolation
Subtask 34-13-00-810-206-A
[Rev.8 from Aug 2018]
2026.04.04 04:32:31 UTC
Loss of the CFDIU Data Input Bus on the ADIRU1
1. Possible Causes
- ADIRU-1 [1FP1]
wiring of the CFDIU INPUT bus from the ADIRU1 (1FP1) to the first terminal bloc
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 34-13-00-740-002 | INTERFACE TEST of the ADR |
| AMM 34-13-00-740-007 | GROUND SCANNING of the ADR |
| ASM 341402 |
Subtask 34-13-00-740-275-A 4. Fault Isolation
Subtask 34-13-00-810-206-A
A. If the test confirms the fault:
Subtask 34-13-00-740-276-A - Do the trouble shooting related to the maintenance message.
- Do the interface test of the ADR (system 1) AMM 34-13-00-740-002.
- Replace the ADIRU-1 [1FP1] AMM 34-12-34-000-001 and AMM 34-12-34-400-001.
- Do a check and repair the
wiring of the CFDIU INPUT bus from the ADIRU1 (1FP1) to the first terminal bloc ASM 341402.
B. Do the test given in Para. 3.