DOC AIRBUS | TSM A320FSAV Failed Closed
TASK 80-11-00-810-827-A
SAV Failed Closed
1. Possible Causes
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Fault Confirmation
Subtask 80-11-00-710-091-A ** ON A/C NOT FOR ALL
Subtask 80-11-00-860-056-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:38:43 UTC
SAV Failed Closed
1. Possible Causes
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | EXTENSION |
| No specific | 1 | WRENCH 3 8 IN - STANDARD |
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 71-00-00-810-834-A | General Troubleshooting Guidelines for Additional Troubleshooting Information |
| AMM 71-00-00-860-817 | Motor the Engine (Dry Method) |
| AMM 71-00-51-000-802 | Removal of the Power Plant (Bootstrap Method) |
| AMM 71-00-51-400-802 | Installation of the Power Plant (Bootstrap Method) |
| AMM 72-00-00-400-805 | Installation of the High (N2) Rotor Turning Equipment |
| AMM 78-36-00-410-802 | Closing of the Thrust Reverser Cowl-Doors |
| AMM 79-00-00-281-802 | Inspection of the Magnetic Chip Collectors for Oil Contamination |
| AMM 80-11-00-040-803 | Starter Air Control Valve Manual Override |
| AMM 80-11-00-200-801 | Inspection of the Starter Magnetic Drain Plug for Oil Contamination |
| AMM 80-11-01-000-801 | Removal of the Starter |
| AMM 80-11-01-400-801 | Installation of the Starter |
| AMM 80-11-03-000-801 | Removal of the Starter Air Control Valve |
| AMM 80-11-03-400-801 | Installation of the Starter Air Control Valve |
Starter Air Control Valve Wiring HarnessSubtask 80-11-00-710-091-A ** ON A/C NOT FOR ALL
A. Do an engine dry motor to confirm the repair of this fault AMM 71-00-00-860-817.
(2) If the engine does not dry motor, go to the Para. Fault Isolation.
4. Fault IsolationNOTE: Starter Air Valve (SAV) position is determined by starter speed and N2 speed. This fault is set when the Electronic Engine Control (EEC) senses the starter speed is below a certain value after the SAV is commanded open.
(1) If the engine dry motors and the fault does not come back, return the engine to service and monitor the engine to see if the problem come back. - Refer to general troubleshooting guidelines for additional troubleshooting information (Ref. TSM TASK 71-00-00-810-834).
(2) If the engine does not dry motor, go to the Para. Fault Isolation.
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS WARNING, INJURY CAN OCCUR.
WARNING:
REFER TO THE MSDS FOR ALL MATERIAL USED AND THE MANUFACTURER'S SAFETY INSTRUCTIONS FOR ALL EQUIPMENT USED. IF YOU DO NOT OBEY THIS WARNING, INJURY CAN OCCUR.
CAUTION:
MAKE SURE YOU REMOVE ELECTRICAL POWER FROM THE EEC BEFORE YOU REMOVE THE ELECTRICAL CONNECTORS. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE EEC CAN OCCUR.
Subtask 80-11-00-810-078-A ** ON A/C NOT FOR ALL A. Do as follow:
(1) Make sure that the air is not supplied to the starter air control valve (4005KS).
(a) Put a WRENCH 3 8 IN - STANDARD with an EXTENSION into the starter air control valve manual override hole location at the 3 o'clock position on the thrust reverser and rotate the starter air control valve AMM 80-11-00-040-803.
(2) If the valve is stuck or binding:
(a) Replace VALVE-PNEUMATIC STARTER [4005KS] AMM 80-11-03-000-801 and AMM 80-11-03-400-801.
(b) Do the test given in Para. 3.
(3) If the starter air control valve (4005KS) opens but the engine does not dry motor, continue below.
(a) If the engine can be turned using the N2 crank pad, do as follow:
1 Look at the starter magnetic chip collector (102KM) AMM 80-11-00-200-801.
a If the starter magnetic chip collector (102KM) is not within limits, replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801.
(b) If the engine will not turn using the N2 crank pad, remove and replace the engine AMM 71-00-51-000-802 and AMM 71-00-51-400-802.
(c) If the engine can be turned using the N2 crank pad, replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801.
5. Close-up(1) Make sure that the air is not supplied to the starter air control valve (4005KS).
(a) Put a WRENCH 3 8 IN - STANDARD with an EXTENSION into the starter air control valve manual override hole location at the 3 o'clock position on the thrust reverser and rotate the starter air control valve AMM 80-11-00-040-803.
(2) If the valve is stuck or binding:
(a) Replace VALVE-PNEUMATIC STARTER [4005KS] AMM 80-11-03-000-801 and AMM 80-11-03-400-801.
(b) Do the test given in Para. 3.
(3) If the starter air control valve (4005KS) opens but the engine does not dry motor, continue below.
NOTE: If there is little or no air coming out of the exhaust baffles on the starter (100KM), check the pneumatic supply system for proper air pressure and look for pneumatic supply system faults. Make sure that the air pressure is supplied from the isolation valve to the starter before continuing.
(4) If the starter air control valve (4005KS) opens but the engine does not dry motor, try to turn the engine by hand using the N2 crank pad on the gearbox AMM 72-00-00-400-805. (a) If the engine can be turned using the N2 crank pad, do as follow:
1 Look at the starter magnetic chip collector (102KM) AMM 80-11-00-200-801.
a If the starter magnetic chip collector (102KM) is not within limits, replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801.
- Examine the remaining engine oil system magnetic chip collectors for oil system contamination AMM 79-00-00-281-802.
- If the oil system chip collector inspection is not within the limits, remove the engine from service.
- If the oil system magnetic chip collector inspection is OK, go to the next step.
(b) If the engine will not turn using the N2 crank pad, remove and replace the engine AMM 71-00-51-000-802 and AMM 71-00-51-400-802.
(c) If the engine can be turned using the N2 crank pad, replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801.
Subtask 80-11-00-860-056-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(a) Close the thrust reverser cowl-doors AMM 78-36-00-410-802.
(1) Make sure that the work area is clean and clear of tools and other items.
(a) Close the thrust reverser cowl-doors AMM 78-36-00-410-802.