737 Flight Crew Operations Manual
2.23
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-4Q8-SJA
2.23
15 Choose one:
16 ISOLATION VALVE switch . . . . . . . . . . . . . AUTO
17 BLEED 1 air switch . . . . . . . . . . . . . . . . . . . . ON
18 L PACK switch . . . . . . . . . . . . . . . . . . . . . AUTO
19 WING ANTI-ICE switch . . . . . . . . . . . .As needed
20 Choose one:
▼
Continued on next page
▼
▼WING-BODY OVERHEAT (-300/-500) continued▼
WING-BODY OVERHEAT light extinguishes:
►►Go to step 16
WING-BODY OVERHEAT light stays
illuminated:
■ ■ ■ ■
WING-BODY OVERHEAT light stays
extinguished:
►►Go to step 21
WING-BODY OVERHEAT light illuminates
again:
►►Go to step 22
March 24, 2017
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