737 Flight Crew Operations Manual
3.11
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-4Q8-SJA
3.11
4 Choose one:
5 Engine BLEED air switch
(affected side) . . . . . . . . . . . . . . . . . . . . . . . ON
6 WING ANTI-ICE switch . . . . . . . . . . . . . . . . . ON
7 When wing anti-ice is no longer needed:
►►Go to step 8
8 WING ANTI-ICE switch . . . . . . . . . . . . Verify OFF
9 Engine BLEED air switch (affected side) . . . . OFF
Wing anti-ice is not available on the affected
side with the ISOLATION VALVE switch closed
■ ■ ■ ■
▼WING ANTI-ICE VALVE OPEN continued▼
WING ANTI-ICE is needed:
►►Go to step 5
WING ANTI-ICE is not needed:
►►Go to step 8
Note: Repeat steps 4 through 9 as needed.
December 15, 2017
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