TM 55-1510-221-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
(2)
NAV switch (autopilot mode
selector panel) - Press on.
(3) When the aircraft is within 10
degrees of the selected radial it should
begin a gradual interception of the
radial or glideslope signal.
g.
Check autopilot altitude hold function as
follows.
(1) Fly aircraft to test altitude.
(2) Altitude hold (ALT) switch-indicator
(autopilot mode selector panel) -
Press on.
(3) Aircraft should maintain the altitude
being flown at the time the ALT hold
switch was pressed.
h.
Check autopilot indicated airspeed hold
function as follows.
(1) Fly aircraft to test airspeed.
(2) Airspeed hold (ALT) switch-indicator
(autopilot mode selector panel) -
Press on .
(3) Aircraft should maintain airspeed
that was being flown at the time IAS
hold switch was pressed.
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