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SECTION
9
-
SUPPLEMENTS
SUPPLEMENT
19
-
FAA APPROVED
CESSNA
MODEL
172R
1. HSI ANNUNCIATOR LIGHT
-
This label
is present when the
optional HSI is
installed.
The
HSI
course
pointer provides
course
datum
to
the
autopilot.
2. NAVIGATION SOURCE
(NAV)
ANNUNCIATOR
-
The
NAV
annunciator
will illuminate
steady to inform
the
pilot that NAV
1 information is being
displayed
on the NAV
1 CDI.
3.
NAVIGATION SOURCE
(GPS)
ANNUNCIATOR
-
The
GPS
annunciator
will
illuminate
steady to inform
the
pilot that GPS
information
is
being displayed
on
the
NAV 1 CDI.
4.
NAV/GPS
SWITCH
--
Toggles
from
Nav
1
to
GPS
and vice
versa
to
control the
type
of navigation data
to
be
displayed
on
the
CDI
(Course
Deviation Indicator).
The
No.
1 CDI Omni
Bearing Selector (OBS) provides analog
course
input to the
KLN
94
in OBS mode when the
NAV/GPS
switch/annunciator
is
in
GPS.
When
the
NAV/GPS
switch
annunciation
is in
NAV,
GPS
course
selection
in
OBS
mode
is
digital
through
the
use of the controls
and
display at
the
KLN
94.
Figure 2.
GPS
Annunciator/Switch
(Serials
17280984
and
On)
(Sheet 1 of 2)
S19-10
Dec 30/00
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