DOC AIRBUS | TSM A320FFailure of the F/O ND Pin Programming
TASK 31-63-81-810-819-A
Failure of the F/O ND Pin Programming
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 31-63-81-740-086-A ** ON A/C NOT FOR ALL Subtask 31-63-81-740-086-B ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 31-63-81-810-073-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:30:55 UTC
Failure of the F/O ND Pin Programming
1. Possible Causes
ground signals at F/O ND (3WT2) connector AA - ND-F/O [3WT2]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 31-60-00-740-002 | Perform Electronic Instrument System (EIS) Input Test |
| AMM 31-60-00-740-004 | EIS System Test |
| AMM 31-63-22-000-001 | Removal of the Display Unit |
| AMM 31-63-22-400-001 | Installation of the Display Unit |
| AWM 316806 |
Subtask 31-63-81-740-086-A ** ON A/C NOT FOR ALL Subtask 31-63-81-740-086-B ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 31-63-81-810-073-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message DMC2 : DU ND2 POS. PIN:
Subtask 31-63-81-740-087-A ** ON A/C NOT FOR ALL - do a check for
ground signals at F/O ND (3WT2) connector AA AWM 316806.
- repair the wiring.
- replace the ND-F/O [3WT2] AMM 31-63-22-000-001 and AMM 31-63-22-400-001.
B. Do the test given in Para. 3.
Subtask 31-63-81-810-073-B ** ON A/C NOT FOR ALL C. If the test gives the maintenance message WRG: PIN PROG/DU ND FO(3WT2)
Subtask 31-63-81-740-087-B ** ON A/C NOT FOR ALL - do a check for
ground signals at F/O ND (3WT2) connector AA AWM 316806.
- repair the wiring.
- replace the ND-F/O [3WT2] AMM 31-63-22-000-001 and AMM 31-63-22-400-001.
D. Do the test given in Para. 3.