TM 1-1510-225-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
AVIONICS FLIGHT CHECKS (CONT)
(e) Check autopilot heading prese-
lection as follows:
(1) Autopilot HEADING selector
knob (on pedestal extension) -
Set test heading.
(2) HDG switch-indicator (flight
director mode selector) - Press
on.
(3) Aircraft should automatically
turn and roll out on prese-
lected heading.
(f) Check altitude control and selec-
tion as follows:
(1) Pitch thumbwheel (autopilot
controller) - Move UP and
DN while observing that air-
craft and pitch trim indicator
respond properly.
(g) Check autopilot VOR/ILS opera-
tion as follows:
(1) VOR receiver - Set.
(2) NAV pushbutton selector
switch (EFIS control panel) -
Depress to select VOR 1 or 2.
(3) NAV switch-indicator (flight
director mode selector) -
Depress on.
(4) When the aircraft is within 10
degrees of the selected radial,
observe that the aircraft
begins a gradual interception
of the radial or glideslope sig-
nal.
4-8
