IDG AIR/OIL COOLER - MAINTENANCE PRACTICES
1. General
A. This procedure has two tasks:
(1) Integrated Drive Generator (IDG) Air/Oil Cooler - Inspection/Check
(2) Integrated Drive Generator (IDG) Air/Oil Cooler - Cleaning
TASK 24-11-21-200-801
2. Integrated Drive Generator (IDG) Air/Oil Cooler - Inspection/Check
(Figure 201)
NOTE: This procedure is a scheduled maintenance task.
A. General
(1) The IDG air/oil cooler is an oil-to-air heat exchanger that uses bypass fan air to cool the IDG
cooling oil system.
(2) The IDG air/oil cooler is found inside the fan case and to the left of the 6 o'clock strut.
(3) For this task, the IDG air/oil cooler will be referred to as the cooler.
(4) Mild debris in the cooler fins can trap water and contaminants that will promote corrosion. This
is especially true in the winter months and during storage. Some runway deicers will attract
water to the surface of parts and result in accelerated corrosion.
(5) Other inspection methods may be used depending on airline policy.
B. References
Reference Title
24-11-21 P/B 401 IDG AIR/OIL COOLER - REMOVAL/INSTALLATION
71-00-00-800-802-F00 Foreign Object Damage - Inspection (P/B 601)
78-31-00-010-801-F00 Open the Thrust Reverser (Selection) (P/B 201)
78-31-00-010-804-F00 Close the Thrust Reverser (Selection) (P/B 201)
C. Tools/Equipment
Reference Description
STD-1081
Flashlight - Explosion Proof
STD-3907
Mirror - Dental
D. Location Zones
Zone Area
415 Engine 1 - Thrust Reverser, Left
425 Engine 2 - Thrust Reverser, Left
E. Prepare for the Inspection/Check
SUBTASK 24-11-21-010-004
WARNING
DO ALL OF THE SPECIFIED TASKS IN THE CORRECT SEQUENCE TO
PREPARE THE THRUST REVERSERS FOR THE INSPECTION. IF YOU DO
NOT OBEY THIS INSTRUCTION, INJURIES TO PERSONNEL AND DAMAGE
TO EQUIPMENT CAN OCCUR.
(1) Do this task: Open the Thrust Reverser (Selection), TASK 78-31-00-010-801-F00.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-11-21
Page 201
D633A101-ILF Feb 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
To Next Page
Loading...
