Removal of the Pneumatic Starter Valve [IAE]

TASK 80-13-51-000-010-B
Removal of the Pneumatic Starter 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.

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.

ZONE: 400
FIN: 4005KS ** 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	ACCESS PLATFORM 2M (6 FT)
No specific	AR	CAP - BLANKING
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 80-13-49-000-010-B	Removal of the Starter Duct
Pneumatic Starter Valve

3. Job Set-up
Subtask 80-13-51-941-052-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On 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) in position to tell persons not to energize FADEC 1(2).
(4) On the APU section of OVERHEAD CTL & IND panel 25VU:
(a) Make sure that the APU MASTER SW pushbutton switch is released.
(b) Put a WARNING NOTICE(S) in position to tell persons not to operate the APU.
(5) On AIR COND panel 30VU:

Make sure that the APU BLEED pushbutton switch is released (the ON legend is off),
Put a WARNING NOTICE(S) in position to tell persons not to operate the pneumatic system.

(6) On the HP ground connector:

Put a WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system.

(7) On AIR COND panel 30VU:

Make sure that the X-BLEED selector switch is in the SHUT position.

Subtask 80-13-51-010-053-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 2M (6 FT) in to position.

4. Procedure
Subtask 80-13-51-020-052-A ** ON A/C NOT FOR ALL

A. Removal of the Pneumatic Starter Valve
(1) Remove the lower air starter duct (Ref. AMM TASK 80-13-49-000-010).
(2) Remove the pneumatic stater valve.
(a) Disconnect the electrical connector (11).
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(c) Make a note of the position of the pneumatic starter valve (4). It must be put in the same position on installation.
(d) Hold the pneumatic starter valve (4) and remove the coupling (3).
(e) Remove the pneumatic starter valve (4).
(f) Remove the seal (1) from the upper duct (2). Discard the seal.

[Rev.10 from 2021] 2026.04.01 03:44:55 UTC