TM 55-1510-219-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
F. AVIONICS FLIGHT CHECKS.
*1. Autopilot flight check - Perform as follows:
Observe that all channels operate positively and smoothly with no
oscillation of any flight control.
a.
Trim aircraft for straight and
level flight.
b.
Turn control Place in center
(detent) position.
c.
Engage switch - ENG.
d.
Check
autopilot
heading
preselection as follows:
(1)
Autopilot
heading
selector
(on
course
deviation indicator) - Set
test heading.
(2)
Heading select switch
indicator
(autopilot
mode selector panel) -
Press on.
(3)
Aircraft
should
automatically turn and
roll out on preselected
heading.
e.
Check altitude control and
selection as follows:
(1)
Pitch
thumbwheel
(autopilot
pitch-turn
panel) Move UP and DN
while observing that
aircraft and pitch trim
indicator
respond
properly.
4-8
