TM 55-1510-215-CL
AUTOPILOT SYSTEM CHECK
1.
Verify that all autopilot modes are disengaged.
2.
Preflight TEST button (autopilot mode control panel) - Press
and hold.
3.
Autopilot mode annunciator panel displays - Check all
illuminated. TRIM display should flash at least four times,
but no more than six times.
4.
Aural trim alert - Listen for sound.
5.
Yaw damp indicator light (autopilot mode control panel) -
Check illuminated.
6.
ARM and ALERT display (altitude selector panel) - Check
displayed.
7.
Computer flag (pilot's flight director indicator) - Check in
view.
8.
Preflight TEST button (autopilot mode control panel) -
Release.
9.
Manual electric trim system - Check as follows:
(1)
PITCH TRIM switch (pilot's control wheel) - Move the
left side of the trim switch to the forward and aft
position, while moving the pitch-trim control wheel.
The pitch-trim solenoid should engage making it more
difficult to move the pitch-trim control wheel, but the
electric trim motor should not run. Move the right side
of the trim switch to the forward and aft positions. The
pitch-trim solenoid should not engage and the electric
trim motor should not run.
I U.S. GOVERNMENT PRINTING OFFICE: 1988 554-120/60151
P-2 C 2
