TM 1-1510-224-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
PRIOR TO MAINTENANCE TEST FLIGHT (CONT)
a Flight
director
mode
selector
-
Annunciators
illuminate.
b Autopilot
controller
-
Annunciator illuminate.
c
Altitude select controller -
All 8’s illuminate.
d Pilot’s
altimeter
altitude
alerter
annunciator
-
Illuminates.
e EADI - FD FAIL (amber)
will be annunciated.
(2)
After SBY pushbutton switch-
indicator
has
been
held
depressed for 5 to 8 seconds
verify that:
a AP TRIM annunciator -
Illuminates.
b Autopilot disconnect horn -
Sounds.
(3)
SBY
pushbutton
switch-
indicator - Release.
(4)
FD and ATT annunciations on
the
EADI
-
Check
extinguished.
(c)
Autopilot - Check as follows:
(1)
Autopilot trim annunciators -
Check extinguished.
(2)
TURN knob - Center.
(3)
ELEV TRIM switch - Check
on.
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