Cessna 172R, Operating Handbook

Page: 432 / 500

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