Check Clogging Indicator on Engine-Driven Pump (EDP) Case Drain Filter

TASK 29-10-00-200-006-A
Check Clogging Indicator on Engine-Driven Pump (EDP) Case Drain Filter

ZONE: 435
ZONE: 437
ZONE: 445
ZONE: 447

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
435	FAN AND ACCESSORY GEARBOX
437	FAN COWL
445	FAN AND ACCESSORY GEARBOX
447	FAN COWL

B. Referenced Information

REFERENCE	DESIGNATION
TASK 29-11-00-710-001-A	Operational Test of the Green Hydraulic System
TASK 29-11-43-000-010-A	Removal of the Engine-Pump Case-Drain Filter
TASK 29-11-43-400-010-A	Installation of the Engine-Pump Case-Drain Filter
TASK 29-11-43-610-010-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-11-51-000-010-A	Removal of the Engine Pump
TASK 29-11-51-400-010-A	Installation of the Engine Pump
TASK 29-13-00-710-002-A	Operational Test of the Yellow Hydraulic System
TASK 29-13-43-000-010-A	Removal of the Engine Pump Case-Drain Filter
TASK 29-13-43-400-010-A	Installation of the Engine Pump Case-Drain Filter
TASK 29-13-43-610-010-A	Servicing of the Engine-Pump Case-Drain Filter
TASK 29-13-51-000-010-A	Removal of the Engine Pump
TASK 29-13-51-400-010-A	Installation of the Engine Pump
TASK 71-13-14-010-801-A	Open the Fan Cowl Oil Filler Access Door
TASK 71-13-14-410-801-A	Close the Fan Cowl Oil Filler Access Door
EDP Case-Drain Filters

3. Job Set-up
Subtask 29-10-00-010-066-A ** ON A/C NOT FOR ALL

A. Open the Fan Cowl Oil Filler Access Door (Ref. AMM TASK 71-13-14-010-801).

4. Procedure
Subtask 29-10-00-210-055-A ** ON A/C NOT FOR ALL

A. Check of the Clogging Indicator of the Case Drain Filters of the Engine-Driven Pumps
(1) Look at the clogging indicator on the case drain filter. Make sure that it does not show that the case drain filter is too dirty (the red indicator button is not out).
(2) If an indicator shows that the case drain filter is too dirty, continue as follows:
(a) Press the indicator to set it again.
(b) Do an operational test of the related hydraulic system:

Do an operational test of the Green hydraulic system (Ref. AMM TASK 29-11-00-710-001).
Do an operational test of the Yellow hydraulic system (Ref. AMM TASK 29-13-00-710-002).

Replace the filter element (Ref. AMM TASK 29-11-43-610-010) and/or (Ref. AMM TASK 29-13-43-610-010).

2 If the clogging indicator is not out:
a After return of the aircraft to the main base, do a new check of the clogging indicator and if the indicator is out replace the filter assembly:

For green hydraulic system (Ref. AMM TASK 29-11-43-000-010) and (Ref. AMM TASK 29-11-43-400-010).
For yellow hydraulic system (Ref. AMM TASK 29-13-43-000-010) and (Ref. AMM TASK 29-13-43-400-010).

(d) Examine the case drain filter element in order to find the causes of the contamination.
(e) If you find metallic particles, you must replace the applicable engine driven pump(s) (Ref. AMM TASK 29-11-51-000-010) and (Ref. AMM TASK 29-11-51-400-010) and/or (Ref. AMM TASK 29-13-51-000-010) and (Ref. AMM TASK 29-13-51-400-010).

5. Close-up
Subtask 29-10-00-410-066-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) Close the fan cowl oil filler access door (Ref. AMM TASK 71-13-14-410-801).

[Rev.10 from 2021] 2026.04.01 04:08:53 UTC