DOC AIRBUS | TSM A320FACSC1 Lane 1 28VDC Supply Fault
TASK 21-61-00-810-878-A
ACSC1 Lane 1 28VDC Supply Fault
1. Possible Causes
2. Fault Confirmation
Subtask 21-61-00-710-164-A ** ON A/C NOT FOR ALL
Subtask 21-61-00-810-212-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:24:57 UTC
ACSC1 Lane 1 28VDC Supply Fault
1. Possible Causes
2. Fault Confirmation
Subtask 21-61-00-710-164-A ** ON A/C NOT FOR ALL
A. Not applicable.
3. Fault IsolationSubtask 21-61-00-810-212-A ** ON A/C NOT FOR ALL
A. If the GROUND REPORT gives the maintenance message ACSC1 LANE1 28VDC SUPPLY INTERRUPT:
- do a check for 28VDC at the ACSC1 (47HH)C pin 3.
- do the trouble shooting of the electrical power supply (Ref. TSM Chapter 24).