Boeing 767 - Subtask 72-00-00-947-005-G00; Task 72-00-00-117-006-G00 - How to Clean the Engine Core (Water Wash)

WARNING
DO NOT GET METHYL ETHYL KETONE (MEK) IN YOUR MOUTH OR
EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM MEK.
PUT ON A RESPIRATOR, PROTECTIVE SPLASH GOGGLES, AND
GLOVES WHEN YOU USE MEK. KEEP MEK AWAY FROM SPARKS,
FLAME, AND HEAT. MEK IS A POISONOUS AND FLAMMABLE SOLVENT
WHICH CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO
EQUIPMENT.
(c) Remove heavy deposits of oil from the fan blades with Scotch-Brite 7447 pad, G02348
[C10-010] and one of these solvents:
1) solvent, B00148
2) solvent, B00678 [C04-003]
3) alcohol, B00679 [C04-035]
(d) Do this step as alternate procedure to remove heavy deposits of oil from the fan blades:
1) Mix a solution of cleaner, B50222 [C04-028] and warm water.
2) Remove the deposits of oil with a soft cloth and the warm water/cleaner solution.
SUBTASK 72-00-00-947-005-G00
(4) Remove the protective mats from the internal inlet cowl.
END OF TASK
TASK 72-00-00-117-006-G00
3. How to Clean the Engine Core (Water Wash)
(Figure 701, Figure 702 and Figure 703)
A. General
(1) This task provides the instructions on how to clean the engine core with water wash.
(2) You can use one of three solutions to clean the engine. Clean water can be used. If the
ambient temperature is below 40 degrees F (5 degrees C) use water mixed with alcohol. A
mixture of water and detergent can be used if the engine is very dirty.
B. References
Reference Title
30-21-03-404-022 Engine Inlet TAI Valve Installation (P/B 401)
36-00-00 P/B 201 PNEUMATIC - GENERAL - MAINTENANCE PRACTICES
71-00-00 P/B 201 POWER PLANT (OPERATING PROCEDURES) -
MAINTENANCE PRACTICES
71-00-00 P/B 501 POWER PLANT - ADJUSTMENT/TEST
71-11-04 P/B 201 FAN COWL PANELS - MAINTENANCE PRACTICES
(OPEN/CLOSE)
71-11-06 P/B 201 CORE COWL PANELS - MAINTENANCE PRACTICES
(OPENING/CLOSING)
78-31-00 P/B 201 THRUST REVERSER SYSTEM - MAINTENANCE PRACTICES
78-31-00-002-138-G00 Thrust Reverser Deactivation for Ground Maintenance
(P/B 201)
C. Consumable Materials
Reference Description Specification
B00679 [C04-035] Alcohol - Isopropyl
767
AIRCRAFT MAINTENANCE MANUAL
CF6-80A SERIES ENGINES
72-00-00
NoC
Page 703
D633T1B7 Aug 22/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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