TM 55-1510-222-MTF
P R O C E D U R E
T R O U B L E S H O O T I N G
R E F E R E N C E
G. AVIONICS FLIGHT CHECKS.
*1.
Autopilot - Check 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 - Set to ENG.
d. Check autopilot heading pre-
selection as follows:
( 1) Autopilot heading selector
(on course deviation indi-
cator) - Set test heading.
(2) Heading select switch-
indicator (autopilot mode
selector panel) - Press on.
(3) Aircraft should automati-
cally turn and roll out on
preselected heading.
e. Check altitude control and se-
lection as follows:
(1) Pitch thumbwheel (au-
topilot pitch-turn panel) -
Move UP and DN while
observing
that
aircraft
and pitch trim indicator
respond properly.
f. Check autopilot VOR/ILS op-
eration as follows:
(1) VOR receiver - Set.
(2) NAV switch (autopilot
mode selector panel) -
Press on.
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