DOC AIRBUS | TSM A320FACSC1 Wiring Fault
TASK 21-61-00-810-913-A
ACSC1 Wiring Fault
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 21-61-00-710-204-A ** ON A/C NOT FOR ALL
Subtask 21-61-00-810-249-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:24:59 UTC
ACSC1 Wiring Fault
1. Possible Causes
- CONT-AIR COND SYSTEM 1 [47HH]
- wiring
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| 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 |
| AMM 21-63-00-710-004 | Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU |
| ASM 216303 |
Subtask 21-61-00-710-204-A ** ON A/C NOT FOR ALL
A. Do the operational test of the cockpit and cabin temperature-control system with CFDS/MCDU AMM 21-63-00-710-004.
4. Fault IsolationSubtask 21-61-00-810-249-A ** ON A/C NOT FOR ALL
A. If the test gives one of the maintenance messages which follow:
Subtask 21-61-00-710-205-A ** ON A/C NOT FOR ALL - WRG: ACSC1 LH BLEED PRV or,
- WRG: ACSC1 RH BLEED PRV or,
- WRG: ACSC1 X-BLEED VLV:
- replace the CONT-AIR COND SYSTEM 1 [47HH] AMM 21-61-34-000-002 and AMM 21-61-34-400-002.
- do a check and repair the wiring ASM 216303 and ASM 216303 from:
- the PRV1 (4001HA1) to the ACSC1 (47HH),
- the PRV1 (4001HA2) to the ACSC1 (47HH),
- the X-BLEED VLV (6HV) to the ACSC1 (47HH).
B. Do the test as given in the Para. 3.A.