737 Flight Crew Operations Manual
7.13
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-4Q8-SJA
7.13
OVER SPEED - APU
1 APU switch . . . . . . . . . . . . . . . . . . . . . . . . OFF
■ ■ ■ ■
OVER
SPEED
APU OVERSPEED
Condition:
One of these occurs:
•An APU RPM limit exceedance causes
automatic shutdown
•During a normal APU shutdown the
overspeed shutdown protection logic fails
a self-test
PM398
•An APU start has been manually aborted
before the APU reached normal operating
speed.
Note: If the OVERSPEED light illuminated due to an
RPM limit exceedance, the APU OVERSPEED
RESET switch in the E/E compartment must
be reset before another APU start can be
attempted.
June 15, 2018
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