TM 1-1510-225-CL
P-9
5. Autopilot controller AP button – Press. AP
ENGAGE and YD ENGAGE annunciators on
autopilot controller will flash. Servo clutches will
engage. FD flag on ADI in view.
6. Control movement – Check when pushed ON.
If autopilot or yaw damper disengages
during overpower test, do not use . If AP
ENGAGE
or
YD
ENGAGE
annunciator
continues to flash, do not use .
7. Rudder pedals – Overpower slowly. YD ENGAGE
annunciator stops flashing. FD flag retracts.
8. Elevator trim follow-up – Check.
9. 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.
10. 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
flasher should illuminate after approximately 15
seconds.
11. AP/YD & TRIM DISC button – Press through
second level. Autopilot and yaw damper should
disengage and ELECT TRIM OFF annunciator
should illuminate. AP ENGAGE and YD
ENGAGE annunciators on instrument panel
should flash 5 times and autopilot off aural alert
should sound for one second.
12. MASTER WARNING flasher – Press to reset.
WARNING
