737 Flight Crew Operations Manual
Normal Procedures -
Amplified Procedures
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
NP.21.14 D6-27370-866-EGP
When the APU GEN OFF BUS light is illuminated:
APU GENERATOR bus switches – ON
Verify that the SOURCE OFF lights are extinguished.
Verify that the TRANSFER BUS OFF lights are extinguished.
Note: Run the APU for one full minute before using it as a bleed
air source.
EQUIPMENT COOLING switches ............................................. NORM
Verify that the OFF lights are extinguished.
EMERGENCY EXIT LIGHTS switch ............................... Guard closed
Verify that the NOT ARMED light is extinguished.
Passenger signs ................................................................................... Set
FASTEN BELTS switch – AUTO or ON
Windshield WIPER selectors .........................................................PARK
Verify that the windshield wipers are stowed.
WINDOW HEAT switches ................................................................ ON
Position switches ON at least 10 minutes before takeoff.
Verify that the OVERHEAT lights are extinguished.
Verify that the ON lights are illuminated (except at high ambient
temperatures.)
YK994 - YW274
PROBE HEAT switches ................................................................ AUTO
Verify that all lights are illuminated.
YK981 - YK993
PROBE HEAT switches ....................................................................OFF
Verify that all lights are illuminated.
WING ANTI–ICE switch..................................................................OFF
Verify that the VALVE OPEN lights are extinguished.
ENGINE ANTI–ICE switches ..........................................................OFF
Verify that the COWL ANTI–ICE lights are extinguished.
Verify that the COWL VALVE OPEN lights are extinguished.
September 15, 2016
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