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.21.12 D6-27370-866-EGP
IFE/PASS SEAT power switch – ON
STANDBY POWER switch – Guard closed
Verify that the STANDBY PWR OFF light is extinguished.
Verify that the BAT DISCHARGE light is extinguished.
Verify that the TR UNIT light is extinguished.
Verify that the ELEC light is extinguished.
Generator drive DISCONNECT switches – Guards closed
Verify that the DRIVE lights are illuminated.
BUS TRANSFER switch – Guard closed
Verify that the TRANSFER BUS OFF lights are extinguished.
Verify that the SOURCE OFF lights are extinguished.
Verify that the GEN OFF BUS lights are illuminated.
Overheat and fire protection panel .................................................Check
Do this check if the flight crew did not do the Electrical Power Up
supplementary procedure. This check is needed once per flight day.
Verify that the engine No. 1, APU, and engine No. 2 fire switches are
in.
Alert ground personnel before the following test is accomplished:
OVERHEAT DETECTOR switches – NORMAL
TEST switch – Hold to FAULT/INOP
Verify that the MASTER CAUTION lights are illuminated.
Verify that the OVHT/DET annunciator is illuminated.
Verify that the FAULT light is illuminated.
If the FAULT light fails to illuminate, the fault monitoring
system is inoperative.
Verify that the APU DET INOP light is illuminated.
Do not run the APU if the APU DET INOP light does not
illuminate.
Note: The fire warning light flashes and the horn sounds on the
APU ground control panel when this test is done with the
APU running. This can be mistaken by the ground crew as
an APU fire.
TEST switch – Hold to OVHT/FIRE
Verify that the fire warning bell sounds.
September 15, 2016
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