DOC AIRBUS | TSM A320FLoss of the Parity Pin Program on the FMGC 1
TASK 22-83-00-810-809-A
Loss of the Parity Pin Program on the FMGC 1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 22-83-00-710-068-A
Subtask 22-83-00-810-062-A
[Rev.8 from Aug 2018]
2026.04.04 04:25:29 UTC
Loss of the Parity Pin Program on the FMGC 1
1. Possible Causes
- FMGC-1 [1CA1]
wiring of the ground signal at the programming pins of the FMGC 1 (1CA1)
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 22-83-34-000-001 | Removal of the FMGC |
| AMM 22-83-34-400-001 | Installation of the FMGC |
| AWM 228530 | |
| AWM 228531 | |
| AMM 22-96-00-710-001 | Operational Test of the AFS |
Subtask 22-83-00-710-068-A
A. Test
(1) Do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FMGC 1.
4. Fault Isolation(1) Do the operational test of the AFS AMM 22-96-00-710-001 and read the result for the FMGC 1.
Subtask 22-83-00-810-062-A
A. If the test gives the maintenance message AFS: FMGC1/PARITY PIN PRG:
Subtask 22-83-00-710-069-A - replace the FMGC-1 [1CA1] , AMM 22-83-34-000-001 and AMM 22-83-34-400-001.
- do a check and repair the
wiring of the ground signal at the programming pins of the FMGC 1 (1CA1) , AWM 228530 and AWM 228531.
B. Do the test given in Para. 3.