Cessna 172N - Page 37

CESSNA
MODEL
172N
SECTION 3
EMERGENCY PROCEDURES
static
pressure
instruments
by
breaking
the
glass
in
the
face
of
the
rate-of-climb
indicator.
With
the
alternate
static
source
on,
adjust indicated
airspeed
slightly
during climb
or approach
according
to the
alternate
static
source
airspeed
catibiation
table
in Section
5, appropriate
to
vent/window(s)
configuration,
causing
the
airplane to be flown
at the
normal
operating
speeds.
Maximum
airspeed and
altimeter
variation
from normal
is
4
knots
and
30
feet over
the normal operating
range with the window(s)
closed. With
window(s)
open,
larger variations
occur
near stall speed.
However, maxi-
mum
altimeter
variation
remains
within
50
feet
of normal.
SPINS
Should an
inadvertent
spin
occur, the following
recovery
procedure
should
be used:
(1)
RETARD
THROTTLE
TO IDLE POSITION.
(2)
PLACE
AILERONS
IN NEUTRAL PGTTION.
(3)
APPLY AND
HOLD FULL
RUDDER OPPOSITE
TO
THE
DIREC-
TION
OF
ROTATI6.-
(4)
JUST
AFTER
THE
RUDDER
REACHES
THE
STOP, MOVE THE
CONTROL.WEEEL BRISKLY
FORWARD
FAR ENOUGH TO BREAK
THE
STALL. FuU
Effii&ator
may be required at aft center
of
gravity
loadings to assure
optimum recoveries,
(5)
HOLD THESE
CONTROL TNPUTS
Ulrrrl. ROTATTON STOPS.
Prerffie
rela:<ation of
the control
inputs may extend the recovery.
(6)
AS
ROTATTON
STOPS,
NEUTRATTZE.
RUDDER,
AND
TVIAKE
A
SMOOTH
RECOVERY FROM THE
RESULTING
DIVE.
NOTE
If disorientation
precludes
a visual determination
of
the
direction of
rotation, the
symbolic
airplane in
the
turn
coordinator
or the needle
of the turn
and
bank indicator
may be referred
to
for
this
information.
For
additional
information on spins
and
spin recovery, see
the
discussion
under SPINS
in
Normal Procedures
(Section
4).
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