DOC AIRBUS | TSM A320FFailure of the Starter Shutoff Valve on Engine 1
TASK 80-11-00-810-813-A
Failure of the Starter Shutoff Valve on Engine 1
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 80-11-00-710-074-A ** ON A/C NOT FOR ALL
Subtask 80-11-00-810-062-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:38:39 UTC
Failure of the Starter Shutoff Valve on Engine 1
1. Possible Causes
starter shutoff valve (SAV) - starter
- harness J10
- ECU [4000KS]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 73-21-50-000-009 | Removal of the J10 Harness |
| AMM 73-21-50-000-043 | Removal of the HJ10 Harness for SAC Engines |
| AMM 73-21-50-400-009 | Installation of the J10 Harness |
| AMM 73-21-50-400-043 | Installation of the HJ10 Harness for SAC Engines |
| AMM 73-21-60-000-001 | Removal of the Electronic Control Unit (ECU) |
| AMM 73-21-60-400-001 | Installation of the Electronic Control Unit (ECU) |
| AMM 73-29-00-710-040 | Operational Test of the FADEC on the ground (with Engine Motoring) |
| AMM 80-11-10-000-001 | Removal of the Pneumatic Starter |
| AMM 80-11-10-000-002 | Removal of the Pneumatic Starter |
| AMM 80-11-10-400-001 | Installation of the Pneumatic Starter |
| AMM 80-11-10-400-002 | Installation of the Pneumatic Starter |
| AMM 80-11-20-000-001 | Removal of the Starter Shutoff Valve |
| AMM 80-11-20-000-003 | Removal of the Starter Shutoff Valve |
| AMM 80-11-20-400-001 | Installation of the Starter Shutoff Valve |
| AMM 80-11-20-400-003 | Installation of the Starter Shutoff Valve |
Subtask 80-11-00-710-074-A ** ON A/C NOT FOR ALL
A. Test
(1) Do the operational test of the FADEC 1B on the ground (with engine motoring) AMM 73-29-00-710-040.
4. Fault Isolation(1) Do the operational test of the FADEC 1B on the ground (with engine motoring) AMM 73-29-00-710-040.
Subtask 80-11-00-810-062-A ** ON A/C NOT FOR ALL
A. If the test gives the maintenance message START AIR, SAV:
Subtask 80-11-00-810-062-B ** ON A/C NOT FOR ALL - do a check for open or short to ground at pins J10/11, 12 of the harness J10 between the ECU (4000KS) and the starter shutoff valve.
- repair the above wiring.
- disconnect the harness J10 from the ECU (4000KS) and do a check of the ECU resistance cable between:
. pins 11 and 12 (10 to 60 Ohms).
- do a check for low starter air duct pressure.
- replace the
starter shutoff valve (SAV) AMM 80-11-20-000-001 AMM 80-11-20-400-001 - replace the starter AMM 80-11-10-000-001 AMM 80-11-10-400-001.
- remove the harness J10 from SAV and do a check of the SAV resistance between:
. pins : 1 and 2 (10 to 60 Ohms).
- replace the harness J10 AMM 73-21-50-000-009 AMM 73-21-50-400-009.
- replace the
starter shutoff valve (SAV) AMM 80-11-20-000-001 AMM 80-11-20-400-001.
- replace the ECU [4000KS] AMM 73-21-60-000-001 AMM 73-21-60-400-001.
A. If the test gives the maintenance message START AIR, SAV:
Subtask 80-11-00-710-075-A ** ON A/C NOT FOR ALL - do a check for open or short to ground at pins J10/11, 12 of the harness J10 between the ECU (4000KS) and the starter shutoff valve.
- repair the above wiring.
- disconnect the harness J10 from the ECU (4000KS) and do a check of the ECU resistance cable between:
. pins 11 and 12 (10 to 60 Ohms).
- do a check for low starter air duct pressure.
- replace the
starter shutoff valve (SAV) AMM 80-11-20-000-003 AMM 80-11-20-400-003 - replace the starter AMM 80-11-10-000-002 AMM 80-11-10-400-002.
- remove the harness J10 from SAV and do a check of the SAV resistance between:
. pins : 1 and 2 (10 to 60 Ohms).
- replace the harness J10 AMM 73-21-50-000-043 AMM 73-21-50-400-043.
- replace the
starter shutoff valve (SAV) AMM 80-11-20-000-003 AMM 80-11-20-400-003.
- replace the ECU [4000KS] AMM 73-21-60-000-001 AMM 73-21-60-400-001.
B. Do the test given in Para. 3.A.