(e) Move the red lever on the right wing anti-ice valve to the CLOSED position.
WARNING
MAKE SURE ALL PERSONNEL AND EQUIPMENT ARE CLEAR OF THE
RIGHT ENGINE DANGER AREA. THE ENGINE INTAKE AND EXHAUST
CAN INJURE PERSONNEL AND DAMAGE EQUIPMENT IN THE DANGER
AREAS.
(f) Make sure that all personnel are cleared from the left engine danger area.
(g) For the left engine, do this task: Start the Engine Procedure (Selection),
TASK 71-00-00-800-807-F00.
(h) Remove the ground air source from the airplane.
(i) Close the isolation and APU bleed air valves to depressurize the right pneumatic duct.
(j) After the pneumatic duct is depressurized, manually move the wing anti-ice valve to the
open position.
(k) Close this access panel:
Number Name/Location
621AB Outboard Leading Edge Blowout Door - Slat Station 20.04
(l) Remove the safety tag and close this circuit breaker:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 1 C00146 ANTI-ICE & RAIN WING ANTI-ICE VALVE
(m) Activate the LE slats. To activate them, do this task: Leading Edge Flap and Slat Locks
Removal, TASK 27-81-00-080-801.
SUBTASK 30-00-00-930-003
(3) Put an INOP ON placard on the WING ANTI-ICE switch.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-00-00
Page 906
D633A101-ILF Oct 15/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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