Discontinued Start, Restart and Shutdown Procedures [IAE]

TASK 71-00-00-710-018-A
Discontinued Start, Restart and Shutdown Procedures

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-710-043-A	Normal Engine Automatic-Start Procedure
TASK 71-00-00-710-045-A	Test No.1 : Dry Motor Leak Check
TASK 71-00-00-710-047-A	Normal Engine Manual-Start Procedure

3. Job Set-up
Subtask 71-00-00-869-154-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Procedure
Subtask 71-00-00-710-097-A ** ON A/C NOT FOR ALL

A. Discontinued Start
(1) You can manually stop the automatic start procedure all the time when you turn the MASTER control switch to OFF. In the auto start mode, the automatic start abort protection is on only when N2 is less than 50 percent RPM.
(a) When automatic engine start is used, the FADEC will abort a start (less than 50 percent N2 RPM) if one or more of the indications that follow are detected.
1 Hot start
After light up is detected, EGT goes above the applicable ground trimmed maximum EGT limit.
2 Hung start
After the hung start wait period after ignition , N2DOT falls below the hung start tolerance for the hung start delay time. If N2 is not available, this test is not done.
3 Ignition failure
4 Locked low rotor
If N2 exceeds the abort speed for locked N1, and there is no sure indication of N1 rotation.
5 Engine stall
The engine surge indicator is activated.
6 Loss of EGT on the ground
T5 failed in both channels
7 FADEC autostop group failsafed
(2) The EEC abort indicator is not active during:
(a) The manual start mode and you must abort the start as follows.
1 If the ENG/MASTER switch 1(2) is not set to ON:

On the overhead panel 22VU release the MAN START pushbutton switch (OFF).

2 If the ENG/MASTER switch 1(2) is already set to ON:

On the ENG PNL 115VU, set the ENG/MASTER switch 1(2) to OFF. This will close the starter air valve, shut off the fuel flow and shut off the igniters.

(b) The autostart mode above N2 IDLE speed and you must abort the start as follows:
1 On the ENG PNL 115VU, set the ENG/MASTER switch 1(2) to OFF. This will close the starter air valve, shut off the fuel flow and shut off the igniters.
(3) Dry motor

CAUTION: YOU CAN ENGAGE STARTER MOTOR WHEN N2 IS LESS THAN 10 PER CENT. IF YOU ENGAGE STARTER MOTOR AT MORE THAN 10 PERCENT N2 SPEED CAN CAUSE DAMAGE TO THE STARTER.

(a) Dry motor the engine for 30 seconds to removed caught fuel and to decrease the EGT below 250 DEG.C (482 deg.F) (Ref. AMM TASK 71-00-00-710-045).

NOTE: If the auto abort start protection system comes on, the FADEC will engage the starter automatically when N2 is at 10 percent RPM. The engine will continue to motor until the EGT is decreased to less than 250 deg.C (482 deg.F) or for two minutes, the one that occurs first.

NOTE: Automatic dry cranking follows a stopped automatic start.

(4) Stop the start if a component or a procedure failure display is shown on the ECAM.

Subtask 71-00-00-710-117-A ** ON A/C NOT FOR ALL

B. Restart
(1) Set the ENG/MAN START pushbutton switch to off. You must do this before you start the engine again after an aborted manual start or an engine shutdown.
(2) If the starter is disengaged during the manual start, you can engage the starter when N2 is below 10 percent.
(3) Do the automatic or manual start procedure (Ref. AMM TASK 71-00-00-710-043) or (Ref. AMM TASK 71-00-00-710-047).

Subtask 71-00-00-710-118-A ** ON A/C NOT FOR ALL

C. Engine shutdown
(1) Set the throttle control lever to the minimum idle position
(2) Operate the engine at MIN IDLE for three minutes before you do an engine shutdown. If you operated the engine at high power (more than of 1.33 EPR) for more than five minutes, increase the time at MIN IDLE to 15 minutes before shutdown.
(3) On the ENG panel 115VU:

CAUTION: MAKE SURE THAT THERE IS AN ENGINE SHUTDOWN IMMEDIATELY, WHEN THE HP MASTER CONTROL SWITCH IS SET TO OFF. THE SHUTDOWN IS INDICATED WHEN THE FUEL SHUT-OFF VALVE CLOSES. IF THE ENGINE CONTINUES TO OPERATE WHEN YOU SET THE MASTER CONTROL SWITCH TO OFF, THERE IS A MALFUNCTION. MAINTENANCE IS NECESSARY BEFORE A SUBSEQUENT ENGINE START.

(a) Set the ENG/MASTER control switch 1(2) to OFF.
(4) If necessary, release all the FUEL/PUMPS pushbutton switches (the ON legends of these pushbutton switches go off).
(5) On the overhead control and indicating panel 25VU:
(a) Set the EXT LT/BEACON switch to OFF.
(6) If necessary, install covers removed at engine start on TAT, AOA and PITOT probes.

NOTE: Do not install the probe covers immediately after engine shutdown.

[Rev.10 from 2021] 2026.04.01 02:28:04 UTC