DOC AIRBUS | AMM A320FStarter Air Control Valve Manual Override [PW11]
TASK 80-11-00-040-803-A
Starter Air Control Valve Manual Override
MMEL 80-11-01A and MMEL 80-11-01B
START VALVE
START VALVE
This task gives the instructions to manually open the starter air control-valve to supply air to the starter while the cowls and the thrust reverser doors are closed.
For more information about the starter system, refer to 80-11-00 CONF 21 - ENGINE STARTING - DESCRIPTION AND OPERATION.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 80-11-00-941-058-A ** ON A/C NOT FOR ALL
(1) On the EIU 1(2)/TEST/SPECIFIC DATA page of the MCDU, select SAV MANUAL OVERRIDE. See the Sheet 1 of the Figure:
(2) On the ENG 1(2) SAV MANUAL OVERRIDE page, make sure that the START VALVE CAN BE MANUALLY OPEN indication is shown. See the Sheet 2 of the Figure:
Subtask 80-11-00-210-055-A ** ON A/C NOT FOR ALL
Subtask 80-11-00-210-055-C ** ON A/C NOT FOR ALL
Subtask 80-11-00-940-052-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 07:53:33 UTC
Starter Air Control Valve Manual Override
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 INSTRUCTION, INJURY CAN OCCUR.
1. Reason for the JobMMEL 80-11-01A and MMEL 80-11-01B
START VALVE
START VALVE
This task gives the instructions to manually open the starter air control-valve to supply air to the starter while the cowls and the thrust reverser doors are closed.
For more information about the starter system, refer to 80-11-00 CONF 21 - ENGINE STARTING - DESCRIPTION AND OPERATION.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | DRIVE 3/8 IN - SQUARE |
| No specific | 1 | EXTENSION |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 400 | POWER PLANT, NACELLES AND PYLONS |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-00-00-910-804-A | General Warnings and Cautions and Related Safety Data |
Starter Air Control Valve Manual Override Access PortSubtask 80-11-00-941-058-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) During the engine start procedure, obey all the engine safety precautions.
4. Procedure(1) During the engine start procedure, obey all the engine safety precautions.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 80-11-00-860-051-D ** ON A/C NOT FOR ALL CAUTION:
MAKE SURE THAT YOU WAITED FOR THE TIME SHOWN ON THE MCDU AFTER ENGINE SHUTDOWN BEFORE YOU START THE ENGINE WITH THE MANUAL OVERRIDE.
IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE ENGINE CAN OCCUR.
A. Wait the necessary time after engine shutdown. (1) On the EIU 1(2)/TEST/SPECIFIC DATA page of the MCDU, select SAV MANUAL OVERRIDE. See the Sheet 1 of the Figure:
(2) On the ENG 1(2) SAV MANUAL OVERRIDE page, make sure that the START VALVE CAN BE MANUALLY OPEN indication is shown. See the Sheet 2 of the Figure:
NOTE: The ENG 1(2) SAV MANUAL OVERRIDE page (See the Sheet 3 of the Figure) gives the indication of the time until you can manually open the starter valve. If no indication of time is shown (See the Sheet 4 of the Figure), push the 3R key to know the necessary cooling time (See the Sheet 5 of the Figure).
When cooling time is NULL, make sure that the start valve can be manually open as described in paragraph 4.B.
When cooling time is NULL, make sure that the start valve can be manually open as described in paragraph 4.B.
B. Check of the Starter Air Control Valve System
(1) (a) Find the access port at the five o'clock position on the right thrust reverser inner fixed structure. See the figure:
(2) Use the maintenance interphone jack (or alternative mode) and make sure that you can communicate with the cockpit crew from the access port location.
(3) Find the DRIVE 3/8 IN - SQUARE (manual override drive) of the starter air control valve through the access port.
(a) Use a 31.5 in. (0.8 m) or more extension to turn the manual override drive.
(4) Make sure that the valve is in the closed position.
(a) The valve is spring-loaded to the closed position. Turn the square drive clockwise to CLOSE if required.
(5) Obey all the safety instructions and warnings in the engines safety precautions procedure (Ref. AMM TASK 71-00-00-910-804).
(6) Start the engine.
(7) When directed by the cockpit crew, turn the manual override with the DRIVE 3/8 IN - SQUARE counterclockwise to OPEN until you feel the stop.
(8) Hold the valve open.
(9) When directed by the cockpit crew, allow the valve to return to the closed position.
(10) Tell the cockpit crew to make sure that on the ECAM WD, the warning message ENG 1(2) START VALVE FAULT/START VALVE NOT CLOSED does not come into view.
Subtask 80-11-00-860-051-E ** ON A/C NOT FOR ALL (1) (a) Find the access port at the five o'clock position on the right thrust reverser inner fixed structure. See the figure:
(2) Use the maintenance interphone jack (or alternative mode) and make sure that you can communicate with the cockpit crew from the access port location.
(3) Find the DRIVE 3/8 IN - SQUARE (manual override drive) of the starter air control valve through the access port.
(a) Use a 31.5 in. (0.8 m) or more extension to turn the manual override drive.
(4) Make sure that the valve is in the closed position.
(a) The valve is spring-loaded to the closed position. Turn the square drive clockwise to CLOSE if required.
(5) Obey all the safety instructions and warnings in the engines safety precautions procedure (Ref. AMM TASK 71-00-00-910-804).
(6) Start the engine.
WARNING:
STAY AWAY FROM THE DANGER AREAS AT THE FRONT AND THE SIDES OF THE ENGINE DURING OPERATION. THE SUCTION IS SUFFICIENT AT THE AIR INTAKE COWL TO PULL A PERSON INTO (IN PART OR FULLY) THE ENGINE. THIS CAN KILL A PERSON OR CAUSE A BAD INJURY.
(a) Tell the cockpit crew that you are ready for the engine start. (7) When directed by the cockpit crew, turn the manual override with the DRIVE 3/8 IN - SQUARE counterclockwise to OPEN until you feel the stop.
(8) Hold the valve open.
(9) When directed by the cockpit crew, allow the valve to return to the closed position.
(10) Tell the cockpit crew to make sure that on the ECAM WD, the warning message ENG 1(2) START VALVE FAULT/START VALVE NOT CLOSED does not come into view.
CAUTION:
ON THE APU LRU IDENT PAGE, MAKE SURE THAT THE STARTER AIR-VALVE OVERRIDE IS AVAILABLE. IF THE STARTER AIR-VALVE OVERRIDE IS NOT AVAILABLE, DAMAGE TO THE ENGINE CAN OCCUR.
C. Check the Starter Air Valve (SAV) manual override status as follows:| ACTION | RESULT |
| On the center pedestal, on the Multipurpose Control & Display Unit (MCDU): | On the center pedestal, on the MCDU: |
| 1. Push the line key adjacent to the APU indication. | The APU page comes into view. |
| 2.Push the line key adjacent to the LRU IDENT indication. | The APU LRU IDENT page comes into view. The SAV manual override ENG 1(2) available or not available indication is shown. |
D. Check of the Starter Air Control Valve System
(1) (a) If "SAV manual override ENG 1(2) available" indication is not shown on the APU LRU IDENT page, then you must wait the required engine shutdown time as per Flight Crew Operating Manual (FCOM) prior to starting the engine using the SAV manual override.
(2) Use the maintenance interphone jack (or alternative mode) and make sure that you can communicate with the cockpit crew from the access port location.
(3) Find the 3/8 in. square drive (manual override drive) of the starter air control valve through the access port.
(a) Use a 31.5 in. (0.8 m) or more EXTENSION to turn the manual override drive.
(b) Make sure that the valve is in the closed position.
1 The valve is spring-loaded to the closed position. Turn the square clockwise to CLOSE if required.
(4) Obey all the safety instructions and warnings in the engines safety precautions procedure (Ref. AMM TASK 71-00-00-910-804).
(5) Start the engine (Ref. AMM D/O 71-00-00-86).
(6) When directed by the cockpit crew, turn the manual override counterclockwise to OPEN until you feel the stop.
(9) Tell the cockpit crew to make sure that on the ECAM Warning Display (WD), the warning message ENG 1(2) START VALVE FAULT/START VALVE NOT CLOSED does not come into view.
5. Close-up(1) (a) If "SAV manual override ENG 1(2) available" indication is not shown on the APU LRU IDENT page, then you must wait the required engine shutdown time as per Flight Crew Operating Manual (FCOM) prior to starting the engine using the SAV manual override.
(2) Use the maintenance interphone jack (or alternative mode) and make sure that you can communicate with the cockpit crew from the access port location.
(3) Find the 3/8 in. square drive (manual override drive) of the starter air control valve through the access port.
(a) Use a 31.5 in. (0.8 m) or more EXTENSION to turn the manual override drive.
(b) Make sure that the valve is in the closed position.
1 The valve is spring-loaded to the closed position. Turn the square clockwise to CLOSE if required.
(4) Obey all the safety instructions and warnings in the engines safety precautions procedure (Ref. AMM TASK 71-00-00-910-804).
(5) Start the engine (Ref. AMM D/O 71-00-00-86).
WARNING:
STAY AWAY FROM THE DANGER AREAS AT THE FRONT AND THE SIDES OF THE ENGINE DURING OPERATION. THE SUCTION IS SUFFICIENT AT THE AIR INTAKE COWL TO PULL A PERSON INTO (IN PART OR FULLY) THE ENGINE. THIS CAN KILL A PERSON OR CAUSE A BAD INJURY.
(a) Tell the cockpit crew that you are ready for the engine start.(6) When directed by the cockpit crew, turn the manual override counterclockwise to OPEN until you feel the stop.
NOTE: If the ECAM message: ENG 1(2) LO START AIR PRESS appears during manual start, this can be disregarded.
(7) Hold the valve open.NOTE: The engine start includes the engine cooling sequence and can take up to five minutes to complete. Unless directed by the cockpit crew, the valve must remain open during this sequence.
(8) When directed by the cockpit crew, allow the valve to return to the closed position.(9) Tell the cockpit crew to make sure that on the ECAM Warning Display (WD), the warning message ENG 1(2) START VALVE FAULT/START VALVE NOT CLOSED does not come into view.
Subtask 80-11-00-940-052-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Tell the cockpit crew that the valve is closed and that you will now leave the area.
(3) Tell the cockpit crew to make an entry in the log book to record that valve has been closed.
(4) Disconnect the interphone from the intake cowl (if connected) and go away from the engine.
(5) Signal to the cockpit crew that you are away from the aircraft.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Tell the cockpit crew that the valve is closed and that you will now leave the area.
(3) Tell the cockpit crew to make an entry in the log book to record that valve has been closed.
(4) Disconnect the interphone from the intake cowl (if connected) and go away from the engine.
(5) Signal to the cockpit crew that you are away from the aircraft.