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TM-1-1510-223-MTF Maintenance Test Flight Manual Army Model RC-12
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Rudder pedals
TM 1-1510-223-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
PRIOR TO MAINTENANCE TEST FLIGHT (CONT)
(4) APFTRIM  annunciators  (instrument
panel,  above  EADI's)  -  Check
illuminated  after  approximately  15
seconds.
(5) Control wheel - Hold forward of mid
travel.
(6) Trim  wheel  (autopilot  controller)  -
Should run nose up after approximately
3 seconds.
(7) TRIM
UP
annunciator
(autopilot
controller) - Check illuminated after 6 to
8 seconds.
(8) AP/TRIM  annunciators  (instrument
panel,  above  EADI's)  -  Check
illuminated  after  approximately  15
seconds.
(9) AP & YDITRIM DISC switch (control
wheel) - Depress to first level to
disengage the autopilot/yaw damper.
l.
Autopilot overpower check - Perform as
follows:
(1) AP ENGAGE switch-indicator (autopilot
controller)  -  Depress  to  engage
autopilot and yaw damper. Check that
AP ENGAGE and YD ENGAGE switch-
indicators on the autopilot controller
and the remote annunciators on the
instrument panel are illuminated.
(2) Control  wheel  -  Slowly  overpower
autopilot in pitch and roll axis.
2-22

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