Textron Cessna 172R - Page 432

SECTION
9
-
SUPPLEMENTS
SUPPLEMENT
15
-
FAA
APPROVED
CESSNA
MODEL
172R
C.
Pitch
accelerations
in
excess
of
+1
.4g
or
less than
+0.6g
only
when
produced
by
a
failure
causing
servo
runaway.
The
pilot
cannot
maneuver
the
aircraft
and
trip
the
monitor.
D.
Turn
Coordinator failure
(small
square
red
flag
visible
on
instrument).
E.
Computer
autopilot
monitor
that detects either
the
R
(ROLL)
or
P
(PITCH)
axis
annunciator.
Activation
of A/P
DISC/TRIM
INT
control wheel switch
will
also
disconnect
the
autopilot.
The
AVIONICS MASTER
switch
supplies
power
to
the
avionics bus
bar
of
the radio
circuit
breakers and the
autopilot
circuit
breaker.
The
AVIONICS MASTER
switch also
serves
as
an
emergency
AP/MET shutoff.
The
following
circuit breakers
are
used
to
protect
the
KAP
140
2-
Axis
Autopilot:
LABEL
FUNCTIONS
AUTO
PILOT
WARN
Pull-off
circuit breaker
supplies
power
to
the
KC
140
Computer
and the
autopilot pitch,
roll
and
pitch
trim
servos.
Supplies
separate
power
for
autopilot
alerting
(PITCH
TRIM)
on
the
airplane's
annunciator
panel.
S15-6
Revision
1
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