Inspection of the Filter Element(s)

TASK 24-21-00-210-045-A
Inspection of the Filter Element(s)

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	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
438AR
FOR [1000EM2] (ENGINE-2)
448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-32-24-281-001-A	Sampling of the IDG Oil for Analysis
TASK 24-21-00-612-044-A	Servicing of the Integrated Drive Generator (IDG) after Oil Chemical Contamination
TASK 24-21-00-612-044-A-01	Servicing of the IDG after Oil Chemical Contamination and Extension of the Oil-Filter Differential-Pressure Indicator (DPI)
TASK 24-21-42-000-010-B	Removal of the Fuel-Cooled IDG Oil-Cooler
TASK 24-21-42-400-010-B	Installation of the Fuel-Cooled IDG Oil-Cooler
TASK 24-21-49-000-041-A	Removal of the Tubings - IDG Cooling Oil
TASK 24-21-49-400-041-A	Installation of the Tubing - IDG Cooler Oil
TASK 24-21-51-000-010-A	Removal of the Integrated Drive Generator -IDG 1(2)
TASK 24-21-51-000-011-A	Removal of the IDG Oil Filter(s)
TASK 24-21-51-400-010-B	Installation of the Integrated Drive Generator - IDG 1(2), (New EPGS)
TASK 24-21-51-400-011-A	Installation of the IDG Oil Filter(s)
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)

3. Job Set-up
Subtask 24-21-00-941-058-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) in position 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) in position to tell persons not to energize the FADEC 1(2).

Subtask 24-21-00-010-058-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the right fan-cowl door (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
438AR
(b) FOR [1000EM2] (ENGINE-2)
448AR

4. Procedure
Subtask 24-21-00-020-051-A ** ON A/C NOT FOR ALL

A. Remove the IDG Oil Filter(s) (Ref. AMM TASK 24-21-51-000-011).

Subtask 24-21-00-210-065-B ** ON A/C NOT FOR ALL

B. Inspection of the Filter Elements

NOTE: This procedure is the same for the two filters.

(1) If you smell fuel in the filter element or on the filter cover, do the servicing of the IDG after the oil chemical contamination (Ref. AMM TASK 24-21-00-612-044).
(2) If you think that the condition of the oil in the filter element or on the filter cover is not correct, do a sampling of the IDG oil for analysis (Ref. AMM TASK 12-32-24-281-001).
(3) If the filter element does not show signs of metal particles, or non-metal, black, fiber-like pieces, do the steps that follow:
(a) If the Differential Pressure Indicator (DPI) is not extended:

Install the filter element (Ref. AMM TASK 24-21-51-400-011).

(b) If the DPI is extended:

Do the alternative procedure, refer to TSM/24.

(4) If there are bright metal particles, and:

The filter element and the O-rings are not damaged (no risk of particles in the external circuit):

(a) Remove the IDG (Ref. AMM TASK 24-21-51-000-010), send it to the overhaul shop and install a new IDG (Ref. AMM TASK 24-21-51-400-010).
(5) If there are bright metal particles, and:

The filter element or/and the O-rings is (are) damaged (there is a risk of particles in the external circuit), do the steps that follow:

(a) Remove the IDG cooling oil-tubes (Ref. AMM TASK 24-21-49-000-041) and clean them.
(b) Remove the fuel-cooled IDG oil-cooler (Ref. AMM TASK 24-21-42-000-010) and send it to the overhaul shop.
(c) Remove the IDG (Ref. AMM TASK 24-21-51-000-010).
(d) Install a new fuel-cooled IDG oil-cooler (Ref. AMM TASK 24-21-42-400-010) and the clean IDG cooling oil- tubes (Ref. AMM TASK 24-21-49-400-041).
(e) Install a new IDG (Ref. AMM TASK 24-21-51-400-010).

5. Close-up
Subtask 24-21-00-410-058-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 right fan cowl door (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
438AR
(b) FOR [1000EM2] (ENGINE-2)
448AR.
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.03.31 23:20:20 UTC