Removal of the Starter Shutoff Valve [CFMI]

TASK 80-11-20-000-001-A
Removal of the Starter Shutoff Valve

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	AR	PLUG - BLANKING
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
Removal/Installation of the Starter Shutoff Valve - PRE SB 80-0015
Removal/Installation of the Starter Shutoff Valve - POST SB 80-0015

3. Job Set-up
Subtask 80-11-20-941-050-A ** ON A/C NOT FOR ALL

A. Safety Precautions

WARNING: IF IT IS NECESSARY TO ENERGIZE THE AIRCRAFT FOR A MAINTENANCE WORK WHILE YOU DO THIS MAINTENANCE PROCEDURE, MAKE SURE THAT ONLY EXTERNAL POWER IS USED. THE USE OF APU OR ENGINE POWER CAN CAUSE PRESSURIZED AIR LEAKAGE IN THE PNEUMATIC SYSTEM, AND INJURY CAN OCCUR.

(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
(4) On the AIR COND panel 30VU:

make sure that the APU bleed pushbutton switch is released (ON legend is off),
put a WARNING NOTICE(S) to tell persons not to operate the pneumatic system.

(5) On the HP ground connector:

put a WARNING NOTICE(S) to tell persons not to pressurize the pneumatic system.

Subtask 80-11-20-010-050-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors: (Ref. AMM TASK 71-13-00-010-040)
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 80-11-20-020-051-A ** ON A/C NOT FOR ALL

A. Removal of the Starter Shutoff Valve:
(1) Disconnect the 2 electrical connectors (40 and 50) from the starter shutoff valve (30).
(2) Remove the 2 V-clamps (20 and 60) which attach the starter shutoff valve to the upper and lower ducts (10 and 70).
(3) Remove the starter shutoff valve (30).
(4) Install CAP - BLANKING on all openings.
(5) Install PLUG - BLANKING on the electrical connectors.

[Rev.10 from 2021] 2026.04.01 03:44:07 UTC