DOC AIRBUS | TSM A320FLGCIU Power Supply Interruption
TASK 32-31-00-810-891-A
LGCIU Power Supply Interruption
1. Possible Causes
2. Fault Confirmation
Subtask 32-31-00-710-080-A
Subtask 32-31-00-810-153-A
[Rev.8 from Aug 2018]
2026.04.04 04:31:27 UTC
LGCIU Power Supply Interruption
1. Possible Causes
2. Fault Confirmation
Subtask 32-31-00-710-080-A
A. Test
(1) Do a check of the PFR:
(a) If the ATA 24 faults are shown, do the applicable troubleshooting procedures first.
(b) If the message POWER SUPPLY INTERRUPT is shown from LGCIU-1 [5GA1] or LGCIU-2 [5GA2] or if there is no ATA 24 CFDS message:
3. Fault Isolation(1) Do a check of the PFR:
(a) If the ATA 24 faults are shown, do the applicable troubleshooting procedures first.
(b) If the message POWER SUPPLY INTERRUPT is shown from LGCIU-1 [5GA1] or LGCIU-2 [5GA2] or if there is no ATA 24 CFDS message:
- No maintenance steps are necessary.
- The TSD shows fault code 13A and the fourth word is 0xxx (flight phase 0)
AND - There is no data related to time and date.
Subtask 32-31-00-810-153-A
A. No maintenance are steps necessary.