TM 55-1510-222-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
BEFORE TAXIING (CONT)
the pilot’s altimeter setting.
The alert light should illu-
minate.
(3) Decrease the controller to
less than 250 feet above the
pilot’s altimeter setting.
The alert light should ex-
tinguish.
(4) Increase the controller to
300 ± 50 feet above the pi-
lot’s altimeter indication
and check that the alert
light illuminates.
(5) Set the desired altitude.
b. Autopilot.
NOTE
The autopilot must be disengaged upon
completion of autopilot testing.
(1) Autopilot controller UP
TRIM, DN TRIM annun-
ciators - Check not illumi-
nated.
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