Textron Cessna 172R - Page 400

SECTION
9
-
SUPPLEMENTS
SUPPLEMENT
7
-
FAA
APPROVED
CESSNA
MODEL
172R
1.
ROLL
(R)
AXIS
ANNUNCIATOR
-
When
illuminated,
indicates
a
failure
in
the roll axis
and
prevents
engagement
or
disengages
the
autopilot.
2.
AUTOPILOT
ENGAGE/DISENGAGE
(AP)
BUTTON
-
When
I
pushed*
or
pressed
and held
(approx
0.25
seconds)**,
engages
autopilot
if
all
preflight
self
test
conditions
are
met.
The
autopilot
will
engage
in
the
basic
ROL
mode
which
functions
as a
wings
leveler.
The
AP
button
can
also be
used
to
disengage
the
autopilot.
3.
HEADING
(HDG)
MODE
SELECTOR
BUTTON
-
When
pushed,
will
select the
Heading
mode,
which
commands the
airplane
to turn to
and maintain
the
heading
selected
by
the
heading
bug
on
the Directional
Gyro
or
HSI
(if
installed).
A
new
heading
may
be
selected
at
any
time and
will
result
in
the
airplane
turning
to
the
new
heading.
The
button
can
also be
used
to
toggle
between
HDG
and
ROL
modes.
This
button
can
also be
used
to
engage
the
autopilot
in
HDG
mode.
For
airplane
serials
17280001
thru
17281118
not
incorporating
Honeywell
Service
Bulletin
KC140-M1,
this
button
will
also
engage
the
autopilot
in
HDG
mode.
*
Airplane
serials
17280001
thru
17281118
not
incorporating
Honeywell
Service
Bulletin
KC140-M1.
**
Airplane
serials
17280001
thru
17281118
incorporating
Honeywell
Service
Bulletin
KC140-M1,
and
airplane
serials
17281119
and
on.
Figure
1.
Bendix/King
KAP
140
Autopilot,
Operating
Controls
and
Indicators
(Sheet
2
of
3)
S7-8
Revision
4
All manuals and user guides at all-guides.com