DOC AIRBUS | TSM A320FMCDU 1 Inoperative
TASK 22-82-00-810-803-A
MCDU 1 Inoperative
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 22-82-00-710-054-A 4. Fault Isolation
Subtask 22-82-00-810-053-A
[Rev.8 from Aug 2018]
2026.04.04 04:25:27 UTC
MCDU 1 Inoperative
1. Possible Causes
- MCDU-1 [3CA1]
wiring of the MCDU TRANSMITTER bus from the MCDU 1 (3CA1) to the first terminal block
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 22-82-12-000-001 | Removal of the MCDU |
| AMM 22-82-12-400-002 | Installation of the MCDU |
| ASM 228604 | |
| AMM 22-91-00-710-001 | Ground Scanning of the AFS |
Subtask 22-82-00-710-054-A 4. Fault Isolation
Subtask 22-82-00-810-053-A
A. If the test gives the maintenance message AFS: MCDU1:
Subtask 22-82-00-710-055-A - replace the MCDU-1 [3CA1] , AMM 22-82-12-000-001 and AMM 22-82-12-400-002.
- do a check and repair the
wiring of the MCDU TRANSMITTER bus from the MCDU 1 (3CA1) to the first terminal block , ASM 228604.
B. Do the test given in Para. 3.