DOC AIRBUS | TSM A320FLoss of the LGCIU 2 Discrete on the DMC 1
TASK 31-63-81-810-905-A
Loss of the LGCIU 2 Discrete on the DMC 1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 31-63-81-740-256-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 31-63-81-810-173-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:31:03 UTC
Loss of the LGCIU 2 Discrete on the DMC 1
1. Possible Causes
- DMC-1 [1WT1]
- wiring
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 31-60-00-740-004 | EIS System Test |
| ASM 316200 | |
| AMM 31-63-34-000-001 | Removal of the DMC |
| AMM 31-63-34-400-001 | Installation of the DMC |
Subtask 31-63-81-740-256-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 31-63-81-810-173-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message LGCIU2 FLIGHT DISCRETE (5GA2)/ DMC1(1WT1):
Subtask 31-63-81-740-257-A ** ON A/C NOT FOR ALL - replace the DMC-1 [1WT1] AMM 31-63-34-000-001 and AMM 31-63-34-400-001
- check the wiring from DMC1 (1WT1) pins AD/7A, 7B to the first terminal block ASM 316200
B. Do the test given in Para. 3.A.