Textron Cessna 172R User Manual

SECTION
3
EMERGENCY
PROCEDURES
CESSNA
MODEL
172R
RECOVERY FROM
SPIRAL
DIVE
IN
THE
CLOUDS
If
a
spiral
is
encountered
in
the
clouds,
proceed
as
follows:
1
.
Retard throttle
to
idle
position.
2.
Stop
the
turn
by
using
coordinated aileron
and
rudder control
to
align
the
symbolic
airplane
in
the
turn
coordinator
with
the
horizon
reference
line.
3.
Cautiously
apply
elevator back
pressure
to
slowly
reduce the
airspeed
to
80
KIAS.
4.
Adjust
the elevator
trim
control
to
maintain
an
80
KIAS
glide.
5.
Keep
hands
off
the control
wheel,
using
rudder
control
to
hold
a
straight heading.
6.
Clear
engine
occasionally,
but avoid
using
enough
power
to
disturb the trimmed
glide.
7.
Upon
breaking
out
of
clouds,
resume
normal
cruising
flight.
INADVERTENT
FLIGHT INTO ICING
CONDITIONS
|
Flight
into
icing
conditions is
prohibited
and
extremely
dangerous.
An
inadvertent
encounter
with
these conditions
can
best
be
handled
using
the checklist
procedures.
The best
procedure,
of
course,
is
to turn
back
or
change
altitude
to
escape
icing
conditions.
During
these
encounters,
an
unexplained
loss
in
engine
speed
could
be caused
by
ice
blocking
the air intake
filter,
or,
in
extremely
rare
instances,
ice
completely
blocking
the
fuel
injection
air
reference
tubes.
In
either
case,
the throttle should
be
positioned
to
obtain
maximum
RPM
(in
some
instances,
the
throttle
may
need
to
be
retarded
for
maximum
power).
The mixture should
then
be
adjusted,
as
required,
to
obtain maximum
RPM.
STATIC
SOURCE
BLOCKED
If
erroneous
readings
of
the static
source
instruments
(airspeed,
altimeter
and vertical
speed)
are
suspected,
the
static
pressure
lalternate
source
valve should
be
pulled
ON,
thereby supplying
static
pressure
to
these
instruments
from
the cabin.
3-18
Revision
7
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Textron Cessna 172R Specifications

General

Brand	Textron
Model	Cessna 172R
Category	Aircrafts
Language	English