The KFC
400
monitors autopilot
operations continuously through
sensors that monitor the aircraft's
attitude and accelerations around
pitch, roll and yaw
axes,
as well as
servo
motor operation. In event of
servo
overcontrol or trim malfunction
the Flight Control System automatical-
ly disables the autopilot by discontin-
uing power to the roll, pitch, yaw and
trim
servos.
In addition, the AP FaiW
Trim annunciator on the aircraft
instrument panel illuminates and an
aural tone warning sounds to alert the
flight crew to the malfunction.
Depending on the nature
of
the
detected failure, the
KFC
400
may
disengage the flight director, as well.
It
also is possible for the system to
disable the flight director, autopilot or
electric trim systems without illuminat-
ing the AP Failmrim Fail annunciator.
In event of autopilot or flight direc-
tor malfunction pay primary attention
to
basic aircraft control prior to at-
tempting to diagnose the exact nature
or cause
of
system failure. Once
aircraft control
is
assured, the crew
may attempt to reengage the affected
autopilot or flight director mode
by
pressing the related mode selector
key.
engine inqperative flight, the autopilot
must be disengaged and the aircraft
flown
by
hand.
H
trim cannot be maintained during
Autopllot
Emergencies
2.
Simultaneously
PRESS AND
HOLD.
Autopilot Disconnedrim
In event of autopilot malfunction, Interrupt Pushbutton
-
Both
autopilot and yaw damper, and flight
director in some installations, will dis-
engage.
3.
Refer to aircraft flight manual
the flight crew should immediately
execute the following procedures:
1.
Airplane Controls
-
GRASP
FIRMLY AND REGAIN AIRCRAFT
CONTROL.
suplement for procedures.
54
To Next Page
Loading...