TASK 30-00-00-440-801
3. MMEL 30-01 (DDPG) Restoration - Wing Anti-Ice Valves Inoperative
A. General
(1) This task puts the airplane back to its usual condition after operation with the wing anti-ice
valves inoperative.
B. References
Reference Title
27-81-00-080-801 Leading Edge Flap and Slat Locks Removal (P/B 201)
27-81-00-480-801 Leading Edge Flap and Slat Locks Installation (P/B 201)
C. Location Zones
Zone Area
522 Left Wing - Slat No. 4
622 Right Wing - Slat No. 5
D. Access Panels
Number Name/Location
521AB Outboard Leading Edge Blowout Door - Slat Station 20.04
621AB Outboard Leading Edge Blowout Door - Slat Station 20.04
E. Reactivate the Wing Anti-Ice Valve
SUBTASK 30-00-00-860-005
(1) Open this circuit breaker and install safety tag:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 1 C00146 ANTI-ICE & RAIN WING ANTI-ICE VALVE
SUBTASK 30-00-00-860-006
(2) Set the WING ANTI-ICE switch on the anti-ice panel on the P5 overhead panel in the flight
compartment to OFF.
SUBTASK 30-00-00-860-007
WARNING
MAKE SURE YOU DO THE PROCEDURE TO DEACTIVATE THE LE SLATS.
THE LEADING EDGE SLATS CAN MOVE AND CAUSE INJURIES TO
PERSONS IF THEY ARE NOT DEACTIVATED.
(3) Do this task: Leading Edge Flap and Slat Locks Installation, TASK 27-81-00-480-801.
SUBTASK 30-00-00-010-001
(4) For the left wing, open this access panel:
Number Name/Location
521AB Outboard Leading Edge Blowout Door - Slat Station 20.04
SUBTASK 30-00-00-010-002
(5) For the right wing, open this access panel:
Number Name/Location
621AB Outboard Leading Edge Blowout Door - Slat Station 20.04
SUBTASK 30-00-00-420-001
(6) Connect the electrical connector to the wing anti-ice valve.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-00-00
Page 908
D633A101-ILF Oct 15/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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