Textron Cessna 172R - Control Locks

SECTION
7
AIRPLANE
&
SYSTEMS
DESCRIPTION
CESSNA
MODEL
172R
NOTE
Accidental
opening
of
a
cabin door
in
flight
due
to
improper
closing
does
not
constitute
a
need
to
land the
airplane.
The
best
procedure
is
to set
up
the
airplane
in
a
trimmed
condition
at
approximately
75
KIAS,
momentarily
shove the
door
outward
slightly,
and
forcefully
close and
lock
the
door.
Exit
from
the
airplane
is
accomplished
by
rotating
the
door
1
handle
from
the
LOCK
position,
past
the
CLOSE
position,
aft
to
the
OPEN
position
and
pushing
the door
open.
To
lock
the
airplane,
lock the
right
cabin
door with the
inside
handle,
close the
left
cabin
door,
and
using
the
ignition
key,
lock
the
door.
The
left
and
right
cabin
doors
are
equipped
with
openableÿ6***)
windows which
are
held
in
the
closed
position
by
a
detent
equipped
latch
on
the
lower
edge
of
the
window
frame.
To
open
the
windows,
|
rotate
the
latch
upward.
Each
window
is
equipped
with
a
spring-
loaded
retaining
arm
which
will
help
rotate
the window
outward,
and
/ÿ***N
hold it
there.
If
required,
either
window
may
be
opened
at
any.
'
speed
up
to
163
KIAS.
The
rear
side
windows
and
rear
windows
are
of
the
fixed
type
and
cannot
be
opened.
CONTROL
LOCKS
A
control
lock
is
provided
to
lock
the
aileron
and
elevator
control
surfaces
to
prevent
damage
to
these
systems
by
wind
buffeting
while
the
airplane
is
parked.
The
lock
consists
of
a
shaped
steel
rod
and
flag.
The
flag
identifies
the
control
lock and cautions about
its
removal
before
starting
the
engine.
To
install
the
control
lock,
align
the hole
in
the
top
of
the
pilot’s
control
wheel
shaft
with the hole
in
the
top
of
the
shaft
collar
on
the
instrument
panel
and
insert
the
rod
into
the
aligned
holes.
Installation
of
the
lock
will
secure
the
ailerons
in
a
neutral
position
and
the
elevators
in
a
slightly
trailing
edge
down
position.
Proper
installation
of
the
lock
will
place
the
flag
over
the
ignition
switch.
In
areas
where
high
or
gusty
winds
occur,
a
control
surface
lock
should
be
installed
over
the vertical stabilizer
and
rudder.
The control lock and
any
other
type
of
locking
device
should
be
removed
prior
to
starting
the
engine.
7-18
Feb
28/00
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