DOC AIRBUS | TSM A320FACSC1/ACSC2 Bus 1 Fault
TASK 21-61-00-810-891-A
ACSC1/ACSC2 Bus 1 Fault
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 21-61-00-710-177-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 21-61-00-810-225-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:24:58 UTC
ACSC1/ACSC2 Bus 1 Fault
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 21-61-00-710-001 | Operational Test of the Pack Temperature-Control System |
| ASM 216103 | |
| AMM 21-61-34-000-002 | Removal of the Air-Conditioning System Controller |
| AMM 21-61-34-400-002 | Installation of the Air-Conditioning System Controller |
Subtask 21-61-00-710-177-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 21-61-00-810-225-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message ACSC1(47HH)/ACSC2(57HH) /WRG: ACSC1 BUS1 TO ACSC2:
Subtask 21-61-00-720-062-A ** ON A/C NOT FOR ALL - do a check and repair the wiring ASM 216103 from:
- the ACSC1 (47HH) connector AA/5E to the ACSC2 (57HH) connector AA/3F,
- the ACSC1 (47HH) connector AA/5F to the ACSC2 (57HH) connector AA/3G.
- replace the CONT-AIR COND SYSTEM 1 [47HH] AMM 21-61-34-000-002 and AMM 21-61-34-400-002.
- replace the CONT-AIR COND SYSTEM 2 [57HH] AMM 21-61-34-000-002 and AMM 21-61-34-400-002.
B. Do the test as given in the Para. 3.A.