737 Flight Crew Operations Manual
3.1
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-4Q8-SJA
3.1
Anti-Ice, RainFile HighlightCOWL ANTI-ICE
1 Reduce thrust only when flight conditions allow.
2 Autothrottle (if engaged). . . . . . . . . . .Disengage
3 Thrust lever
(affected engine) . . . Confirm . . . Retard until the
COWL ANTI-ICE
light extinguishes
4 Run the engine at reduced thrust to keep the light
extinguished.
PM398 - PM411, PQ487 - PT832
5 Transponder mode selector . . . . . . . . . . . . . . TA
This step prevents climb commands which can
exceed reduced thrust performance capability.
PP518, PP519
6 Transponder mode selector . . . . . . . . . . TA ONLY
This step prevents climb commands which can
exceed reduced thrust performance capability.
■ ■ ■ ■
COWL
ANTI-ICE
ENGINE COWL ANTI-ICE
Condition:
An engine cowl anti-ice duct overpressure or
overtemperature occurs.
Objective:
To reduce cowl duct pressure or cowl duct
temperature by reducing thrust.
Note: Do not use FMC performance predictions.
December 15, 2019
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