W DOC AIRBUS | AMM A320F

Visual Inspection of the IDG for Oil Leaks and Check of the Electrical Circuits

TASK 24-21-00-210-048-A
Visual Inspection of the IDG for Oil Leaks and Check of the Electrical Circuits

1. Reason for the Job
To make sure that the IDG oil system is serviceable and to do a check for leakage, staining or wetting.
To make sure that the wiring harnesses are in the correct condition.
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 12-13-24-612-011-A
Integrated Drive Generator (IDG) Servicing - Filling of the IDG with Oil or Addition of Oil after a Level Check
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 24-21-49-200-010-A
General Check of the IDG Oil Cooling Tubes
TASK 24-21-51-000-010-A
Removal of the Integrated Drive Generator -IDG 1(2)
TASK 24-21-51-400-010-B
Installation of the Integrated Drive Generator - IDG 1(2), (New EPGS)
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 24-21-00-941-085-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 24-21-00-010-098-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 24-21-00-210-087-A ** ON A/C NOT FOR ALL
A. Visual Inspection
   (1) Do a visual inspection of these components:
NOTE: There can be different signs of possible leakage:
  • Droplets of oil
  • Wet areas around connections, oil stripes on tubes
  • Stains or discoloration which can occur when oil or grease is in contact with very hot surfaces.
     (a) IDG fittings for leakage:
  • Pressure fill port
  • Overflow drain port
  • Oil-in and oil-out ports (cooling circuit interface with the IDG)
  • Case drain.
If you find an oil leak at:
     (b) IDG oil cooling tubes for leakage and correct condition (Ref. AMM TASK 24-21-49-200-010).
     (c) IDG oil cooler for leakage:
  • Oil-in and oil-out ports (cooling circuit interface with the cooler)
  • Drain plug
  • Body of the cooler.
If you find a leak, replace the IDG oil cooler (Ref. AMM TASK 24-21-42-000-010) and (Ref. AMM TASK 24-21-42-400-010).
   (2) If you find components wet with oil, make sure that you find and correct all the causes.
If necessary, fill the oil tank (Ref. AMM TASK 12-13-24-612-011).
Subtask 24-21-00-210-088-A ** ON A/C NOT FOR ALL
B. Check of the Electrical Circuits
   (1) Make sure that the wiring harnesses are in the correct condition.
   (2) Make sure that the electrical connectors are correctly connected.
5. Close-up
Subtask 24-21-00-410-097-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 fancowl 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 23:20:21 UTC
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