SECTION 9
-
SUPPLEMENTS
SUPPLEMENT
15
-
FAA
APPROVED
CESSNA
MODEL
172R
2.
If
annunciation
continues,
Airplane Control Wheel
--
GRASP
FIRMLY,
disengage
the
autopilot and
check for
an
out
of
pitch
trim condition.
Manually
retrim
as
required.
3.
AUTOPILOT OPERATION
-
CONTINUE if
satisfied
that the
out
of trim indication was
temporary.
DISCONTINUE if
evidence
indicates a
failure of
the
auto
trim
function.
A red P or R on the
face of
the autopilot
computer.
1
.
A
red
P
is
an
indication that the pitch axis
of
the
autopilot
has
been
disabled and
cannot
be
engaged.
DO
NOT
ENGAGE
INTO A ROLL AXIS
ONLY SYSTEM.
NOTE
If
the red
P
lamp
was
the
result
of
some
abnormal
accelerations
on
the airplane, the annunciation should
be
extinguished
within
approximately
one
minute and
normal
use
of
the autopilot
will
be reestablished.
2. A
red
R
is an indication that the roll
axis
of
the
autopilot
has
been disabled and
cannot
be
engaged.
The autopilot
cannot
be
reengaged.
Flashing
mode annunciation
in
the
display of
the
autopilot
computer.
1.
Flashing
HDG
--
Indicates
a
failed
heading.
PRESS
HDG
button
to
terminate
flashing. ROL
will be
displayed.
2.
Flashing NAV, APR
or
REV
--
Usually
an
indication
of
a
flagged
navigation
source.
PRESS the
NAV, APR
or
REV
button
to
terminate
flashing. ROL will be displayed. (Select
a
valid
navigation source.)
NOTE
A flashing NAV, APR
or
REV annunciation can
also be
caused
by
a
failed heading
valid input.
S15-18
Original
Issue
All manuals and user guides at all-guides.com
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