Textron Cessna 172R, Pilot Operating Handbook

Page: 490 / 500

SECTION 9
-
SUPPLEMENTS
SUPPLEMENT 20
-
FAA APPROVED
CESSNA
MODEL 172R
SECTION 2
LIMITATIONS
1. PUSH OFF/EMG operation is prohibited during normal
operations.
2.
Use of the Entertainment audio input (and PED)
is prohibited
during takeoff and landing.
3. Use
of
the Entertainment audio input (and PED) is prohibited
under IFR unless the operator of
the
aircraft has determined
that the use
of
the
12 VDC power supply and the connected
portable electronic device(s) will
not
cause interference with
the navigation or communication
system of the airplane.
NOTE
During KMA 28 operation in the OFF or EMG position, the
audio is disabled preventing installed
system alerts
(autopilot
disconnect
tone) from being heard. The marker
beacon receiver audio and annunciator lights
will be
inoperative.
SECTION
3
EMERGENCY PROCEDURES
In the event of
a
failure of the KMA
28,
as
evidenced by the
inability
to transmit
in
COM 1, 2
or
3.
1.
Volume Control/Power Switch/Emergency
Operation Knob
—
Push OFF.
NOTE
This action bypasses the
KMA
28
and
connects
the pilot's
mic/headset directly to COM
1
.
S20-10 Dec
30/00
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