Removal of the PS13 Line [CFMI]

TASK 72-23-00-000-041-A
Removal of the PS13 Line

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	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
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
PS13 Line

3. Job Set-up
Subtask 72-23-00-941-070-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(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).

Subtask 72-23-00-010-081-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

4. Procedure
Subtask 72-23-00-020-058-A ** ON A/C NOT FOR ALL

A. Removal of the PS13 Line

CAUTION: USE 2 WRENCHES TO REMOVE/INSTALL THE TUBE UNION NUT: ONE TO HOLD THE FITTING, THE OTHER TO LOOSE/TORQUE THE NUT. OTHERWISE, DAMAGE TO THE HARDWARE CAN OCCUR.

(1) Cut and remove the lockwires.
(2) Disconnect the PS13 hose (20) from the ECU nipple and from the PS13 tube (10). Remove the PS13 hose (20) from the engine.
(3) Disconnect the PS13 tube (10) from the fan frame nipple.
(4) Remove the PS13 tube (10) from the engine as follows:

REMOVE	FROM	NOTE
Nuts (120) Bolts (90) Outer spring clips (110) Inner spring clips (140) Plastic bushings (100)	Brackets (130)	On flange H, from the 2 o'clock to the 4 o'clock position (4 locations) (Detail D)
Nut (60) Bolt (30) Outer spring clip (40) Inner spring clip (70) Plastic bushing (80)	Bracket (50)	On flange G, at the 5 o'clock position (Detail C)

[Rev.10 from 2021] 2026.04.02 06:33:42 UTC