Visual Check of the Engine-Pump Case-Drain Filter Contamination (Pop-Out) Indicator

TASK 29-13-43-200-802-A
Visual Check of the Engine-Pump Case-Drain Filter Contamination (Pop-Out) Indicator

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

ZONE: 445

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
445	FAN AND ACCESSORY GEARBOX
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 29-11-43-610-802-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-13-51-000-806-A	Removal of the Yellow Engine Driven Pump
TASK 29-13-51-400-806-A	Installation of the Yellow Engine-Driven Pump
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
Engine-Pump Case-Drain Filter Contamination (Pop-Out) Indicator

3. Job Set-up
Subtask 29-13-43-941-069-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 29-13-43-010-066-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position.

4. Procedure
Subtask 29-13-43-210-053-A ** ON A/C NOT FOR ALL

A. Visual Check of the Engine-Pump Case-Drain Filter Contamination (Pop-Out) Indicator
(1) Do a visual check of the red pop-out indicator button (2) located on the head of the filter assembly (1).
(a) If the red pop-out indicator button (2) is extended, a filter bypass has occurred.

NOTE: A filter bypass can let some contamination past the filter cartridge. This contamination can affect the operation of some components located downstream of the filter.

(2) If there was a filter bypass, replace the filter cartridge (Ref. AMM TASK 29-11-43-610-802).
(a) After replacing the filter cartridge, reset the pop-out indicator button (2) by pressing the red button until it is held in the retracted position.
(b) Do a check for contamination of the removed filter cartridge.

If you find metallic particles, replace the engine pump (Ref. AMM TASK 29-13-51-000-806) and (Ref. AMM TASK 29-13-51-400-806).

5. Close-up
Subtask 29-13-43-942-061-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).

Subtask 29-13-43-410-064-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 04:08:55 UTC