TM 1-1510-218-CL
P-9
(1) Control wheel – Hold aft of mid travel.
Trim wheel should run nose down after
approximately 3 seconds. Trim down
annunciator
should
illuminate
after
approximately 8 seconds.
(2) Control wheel – Hold forward of mid travel.
Trim wheel should run nose up after
approximately
3 seconds,
trim
up
annunciator
should
illuminate
after
approximately 8 seconds, and AP TRIM
FAIL
annunciator
and
MASTER
WARNING lights should illuminate after
approximately 15 seconds.
h. AP/YD & TRIM DISC button – Press through
second level. Autopilot and yaw damper
should disengage and ELEV TRIM OFF
annunciator should illuminate. AP ENG and
YD ENG annunciators on instrument panel
should flash five times.
i. ELEV TRIM switch – OFF, then On. ELEV
TRIM OFF annunciator should extinguish.
j. AP – Re-engage and overpower another time.
k. Turn controller – Check that control wheel
follows in each applied direction and center.
l. Pitch wheel – Check that trim responds to
pitch wheel movement. UP TRIM and DN
TRIM annunciators may illuminate.
m. Heading bug – Center and engage HDG.
Check that control follows a turn in each
direction.
n. Disengage AP by selecting GA. Check that
AP disengages and FD commands 7° nose
up, wings level attitude.
