DOC AIRBUS | TSM A320FFailure of the Starter Shutoff Valve on Engine 2
TASK 80-00-00-810-836-A
Failure of the Starter Shutoff Valve on Engine 2
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 80-00-00-710-123-A ** ON A/C NOT FOR ALL
Subtask 80-00-00-810-098-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:38:38 UTC
Failure of the Starter Shutoff Valve on Engine 2
1. Possible Causes
- aircraft wiring
- EIU-2 [1KS2]
- CTL SW-ENG/MASTER 2 [2KC]
- SEL SW-ENG/MODE/CRANK/AUTO IGN/IGN [6KS]
- ECU [4000KS]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| ESPM 204521 | |
| AMM 31-10-00-700-001 | Test Program after Removal/Installation of a VU panel |
| AMM 71-00-00-710-003 | Engine Automatic Start |
| 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) |
| AWM 732509 | |
| AMM 73-25-34-000-040 | Removal of the Engine Interface Unit (EIU) |
| AMM 73-25-34-400-040 | Installation of the Engine Interface Unit (EIU) |
| ASM 743101 |
Subtask 80-00-00-710-123-A ** ON A/C NOT FOR ALL
A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation(1) Not applicable, the fault is evident.
Subtask 80-00-00-810-098-A ** ON A/C NOT FOR ALL
A. If the fault symptom is identified by the crew observation: ENG2 STARTING - Opening of the starter shutoff valve not possible in automatic mode.
(1) Remove the panel 115VU and do a check and repair the aircraft wiring between:
(3) If the fault continues:
Subtask 80-00-00-810-099-A ** ON A/C NOT FOR ALL (1) Remove the panel 115VU and do a check and repair the aircraft wiring between:
- The ENG/MASTER2 control switch (2KC) and the EIU2 (1KS2), pins AA/5A, 4E to pins 2A, 3A
- The ENG/MODE/CRANK/AUTO IGN/IGN selector switch (6KS) and the EIU2 (1KS2), pins AA/1A, 1B, 1C to pins 22, 23, 24.
(3) If the fault continues:
- Replace the EIU-2 [1KS2] AMM 73-25-34-000-040 and AMM 73-25-34-400-040.
- Replace the CTL SW-ENG/MASTER 2 [2KC] ESPM 204521
- Replace the SEL SW-ENG/MODE/CRANK/AUTO IGN/IGN [6KS] AWM 732509.
- Install the panel 115VU and do a test program after removal/installation of a VU panel. AMM 31-10-00-700-001
- Replace the ECU [4000KS] AMM 73-21-60-000-001 and AMM 73-21-60-400-001.
B. If the starter shutoff valve does not open in manual mode:
(1) Do a check and repair the aircraft wiring between the ENG/MAN START/2 pushbutton switch (9KS2) and the EIU2 (1KS2), pin AA/1F to pin AA3.
(2) Do a check and repair the aircraft wiring between the EIU2 (1KS2) and the ECU (4000KS) ASM 743101.
(3) If the fault continues:
(5) If the fault continues:
Subtask 80-00-00-710-124-A ** ON A/C NOT FOR ALL (1) Do a check and repair the aircraft wiring between the ENG/MAN START/2 pushbutton switch (9KS2) and the EIU2 (1KS2), pin AA/1F to pin AA3.
(2) Do a check and repair the aircraft wiring between the EIU2 (1KS2) and the ECU (4000KS) ASM 743101.
(3) If the fault continues:
- Replace the EIU-2 [1KS2] AMM 73-25-34-000-040 and AMM 73-25-34-400-040.
(5) If the fault continues:
- Replace the ECU [4000KS] AMM 73-21-60-000-001 and AMM 73-21-60-400-001.