DOC AIRBUS | TSM A320FSAV Failed Open
TASK 80-11-00-810-828-A
SAV Failed Open
1. Possible Causes
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Fault Confirmation
Subtask 80-11-00-710-092-A ** ON A/C NOT FOR ALL
Subtask 80-11-00-860-057-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:38:43 UTC
SAV Failed Open
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 71-00-00-720-811 | Test No. 3 - Idle Power Test |
| AMM 73-21-01-000-801 | Removal of the Electronic Engine Control (EEC) |
| AMM 73-21-01-400-801 | Installation of the Electronic Engine Control (EEC) |
| AMM 78-36-00-410-802 | Closing of the Thrust Reverser Cowl-Doors |
| 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 80-11-00-710-092-A ** ON A/C NOT FOR ALL
A. Not Applicable
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 not decreasing and N2 is above a certain value after the SAV is commanded closed.
- Refer to general troubleshooting guidelines for additional troubleshooting information (Ref. TSM TASK 71-00-00-810-834).
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 80-11-00-810-079-A ** ON A/C NOT FOR ALL A. Do as follow:
(1) Make sure there is no air supply available 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.
1 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. 4.B.
(b) If the valve moves freely, continue with the next step.
(2) Do a check of the starter magnetic chip collector (102KM) AMM 80-11-00-200-801.
(a) If particles were found above the limit, replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801.
(b) Do the test given in Para. 4.B.
(3) If the fault continues:
(a) Replace VALVE-PNEUMATIC STARTER [4005KS] AMM 80-11-03-000-801 and AMM 80-11-03-400-801 if not already replaced.
(b) Do the test given in Para. 4.B.
(4) If the fault continues:
(a) Replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801 if not already replaced.
(b) Do the test given in Para. 4.B.
(5) If the fault continues:
(a) Replace
(b) Do the test given in Para. 4.B.
Subtask 80-11-00-710-093-A ** ON A/C NOT FOR ALL (1) Make sure there is no air supply available 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.
1 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. 4.B.
(b) If the valve moves freely, continue with the next step.
(2) Do a check of the starter magnetic chip collector (102KM) AMM 80-11-00-200-801.
(a) If particles were found above the limit, replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801.
(b) Do the test given in Para. 4.B.
(3) If the fault continues:
(a) Replace VALVE-PNEUMATIC STARTER [4005KS] AMM 80-11-03-000-801 and AMM 80-11-03-400-801 if not already replaced.
(b) Do the test given in Para. 4.B.
(4) If the fault continues:
(a) Replace STARTER-PNEUMATIC [100KM] AMM 80-11-01-000-801 and AMM 80-11-01-400-801 if not already replaced.
(b) Do the test given in Para. 4.B.
(5) If the fault continues:
(a) Replace
(b) Do the test given in Para. 4.B.
B. If the fault continues:
(1) Do an engine start and run to idle. Refer to the Test No. 3 - Idle power test AMM 71-00-00-720-811.
5. Close-up(1) Do an engine start and run to idle. Refer to the Test No. 3 - Idle power test AMM 71-00-00-720-811.
Subtask 80-11-00-860-057-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.