TASK 30-00-00-440-803
7. MMEL 30-03 (DDPG) Restoration - Engine and Nose Cowl Anti-Ice Valves Inoperative
A. General
(1) This task puts the airplane back to its usual condition after operation with the engine anti-ice
systems inoperative.
B. References
Reference Title
71-11-02-010-801-F00 Open the Fan Cowl Panels (P/B 201)
71-11-02-410-801-F00 Close the Fan Cowl Panels (P/B 201)
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. Consumable Materials
Reference Description Specification
D00010 Compound - Thread Antiseize, High
Temperature
MIL-PRF-907
D00667 Compound - Antiseize - Loctite C5-A Copper
Based Anti-Seize (Replaces FEL-PRO C5-A)
MIL-PRF-907
D50188 Compound - Anti-Seize, Loctite Silver Grade MIL-PRF-907
D. Location Zones
Zone Area
411 Engine 1 - Engine
421 Engine 2 - Engine
E. Prepare for the Procedure
SUBTASK 30-00-00-010-011
(1) Do this task: Open the Fan Cowl Panels, TASK 71-11-02-010-801-F00.
SUBTASK 30-00-00-010-012
(2) Do this task: Open the Thrust Reverser (Selection), TASK 78-31-00-010-801-F00.
SUBTASK 30-00-00-860-021
(3) Open these circuit breakers and install safety tags:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 6 C00148 ANTI-ICE & RAIN ENG 1 & WING CONT
A 7 C01001 ANTI-ICE & RAIN ENG 1 COWL AI VALVE
B 6 C00149 ANTI-ICE & RAIN ENGINE 2 CONTROL
B 7 C01002 ANTI-ICE & RAIN ENG 2 COWL AI VALVE
F. Procedure
SUBTASK 30-00-00-210-004
(1) Unlock the engine cowl anti-ice valve:
(a) Loosen the retaining screw on the manual locking assembly.
(b) Slide the locking assembly out of the cover plate recess.
(c) Tighten the retaining screw 20 ±1 in-lb (2.26 ±0.11 N·m).
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-00-00
Page 918
D633A101-ILF Feb 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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