Textron Cessna 172R User Manual

GARMIN
Ltd.
or
its subsidiaries
do
Garmin
lnlcmational
1200
H.
151“
Street,
Olathe.
KS
66062
USA
AIRPLANE
FLIGHT
MANUAL
SUPPLEMENT
or
SUPPLEMENTAL
AIRPLANE
FLIGHT
MANUAL
for
a
Garmin
400W
Series
Navigation
System
4.2
Approaches
without
Vertical
Guidance
The
400W
Series
unit
supports
Localizer
Performance
approaches
(annunciated
as
LP).
Published
LP
mtnimums
will
be
controlling
in
this
ease.
NOTE:
If
flying
an
LP
approach,
be
prepared
to
fly
the
LNAV
only
approach
prior
to
reaching
the
final
approach
fix
(FAF).
If
the
GPS
integrity
is
not
within
LP
approach
limits,
the
system
will
notify
the
pilot
by
a
downgrade
to
LNAV
message.
For
additional information
on
LP
approaches
refer
to
the
400W
Series
unit
Pilot’s
Guide.
4.3
Autopilot Operation
The
Garmin
400W
Series
may
be
coupled
to
an
optional
autopilot
if
installed
in
the aircraft when
operating
as
prescribed
in
the
LIMITATIONS
section
of
this
manual.
For
lateral
guidance,
some
installations
may
utilize
GPSS
or
GPS
Roll
Steering
in
lieu
of
the
analog
deviation information.
If
an
HSI
is
used with
GPSS
engaged,
the
pilot
should
rotate
the
course
pointer
as
prompted
on
the
400W
Scries
unit
to
prevent
loss
of
situational
awareness
and
to
prevent
the aircraft
from
turning inappropriately
if
the
autopilot
is
switched
from
digital
(GPSS)
to
analog
mode.
For
autopilot operational
instructions,
refer
to
the
FAA
approved
Flight
Manual
or
Flight
Manual
Supplement
for
the
autopilot.
4.4
Coupling
the
Autopilot
during
approaches
The
Garmin
400W
Scries
supports
analog
and
digital
(GPSS)
control
interfaces
to
an
optionally
installed
autopilot.
Some
autopilots
revert
to
ROLL
mode
(wings
level)
and/or
flag
a
NAV
failure
if
the
digital
data
becomes unavailable
or
is inhibited. The
CDI
selection
of
VLOC
should
inhibit the
digital
control
interface.
When
switching
between
GPS
and
VLOC
the
pilot
should be
aware
that
the
autopilot
may
need
to
be
re¬
engaged
into
APR
or
NAV
mode
after
changing
the
CDI
source.
Autopilot
coupling
to
GPS
vertical
guidance
requires
that
the
autopilot
be
engaged
in
an
analog
APR
mode
identical
to
coupling
to
an
ILS.
Some
autopilots
may
revert
to
ROLL
mode
when the
navigation
outputs
of
the
400W
Series
unit
sequence
to
the
final
approach
fix.
In
these installations
190-00356-03
Rev.
B
Page
14
of
16
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Textron Cessna 172R Specifications

General

Brand	Textron
Model	Cessna 172R
Category	Aircrafts
Language	English