Installation of the Intake Cowl Inner Barrel Panel Drain Tube Valves POST SB RA32071-129 [CFMI]

TASK 71-11-00-400-042-A
Installation of the Intake Cowl Inner Barrel Panel Drain Tube Valves POST SB RA32071-129

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.

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 1M(3 FT)
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. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
15	VALVES	AIPC 71-11-11-01-150
20	TIE BANDS	AIPC 71-11-11-01-155

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
Intake Cowl Inner Barrel Panel Drain Tube Valves

3. Job Set-up
Subtask 71-11-00-860-052-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(2) On the ENG panel 115VU:
(a) Make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine 1(2).
(3) On the ENG section of the maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).

Subtask 71-11-00-010-065-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

4. Procedure
Subtask 71-11-00-420-058-A ** ON A/C NOT FOR ALL

A. Installation of the Drain Tube Valves
(1) Put the AIPC 71-11-11-01-150 VALVES (15) in position on the drain tubes. Attach the valves to the drain tube with AIPC 71-11-11-01-155 TIE BANDS (20).

5. Close-up
Subtask 71-11-00-410-062-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the screws (5) that attach the anti-ice vent panel (10) to the inlet cowl outer panel.
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(4) Remove the access platform(s).
(5) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:31:54 UTC