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Cessna 172 - Recovery From Spiral Dive; Flight in Icing Conditions

Cessna 172
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,
down condition
as
follows:
(1)
Apply full
rich
mixture.
(2)
Use full
carburetor
heat.
(3) Reduce power to
set
up a
500
to 800 ft./ min. rate
of
descent
· (
4)
A~just
the elevator
trim
tab
for
a stabilized descent
at
BO
to
9o
·. MPH . . · .
(
5)
Keep hands off the control
wheel~
(6)
. Monitor turn coordinator and make
correc~ions
by
rudder
alone
(7)
Check
trend
of compass
card
movement and 'make
cautious
cor.'
~
.
rections
with ·
rudder
to stop the turn. .
(
8)
Upon
breaking out of clouds,
resume
normal cruising
flight.
RECOVERY FROM A SPIRAL DIVE.
If
a
spiral
is
encountered, proceed
as
follows:
(1)
Close the throttle.
(2)
Stop
the turn by using coordinated aileron
and
rudder
control
to
align the symbolic
aircraft
in the turn coordinator
with
the
horizon
reference line. · · · ·
(
3)
Cautiously apply elevator back
pressure
to slowly
reduce
the
indicated,a.i.rspeed to
90
MPH. - - · ·
(
4)
Adjust the elevator
trim
control to maintain a
90
MPH
glide.
(
5)
_ Keep hands off the control wheel, using rudder control
to
hold
a ·straight' heading. · · ·
,.,
. (
6)
,
Apply
carburetor
heat. ·
-
(7)
Clear engine occasionally, but avoid using
enough
power
to
dis-
turb the trimmed glide. ·
(
8)
Upon
breaking out of clouds, apply normal cruising
power
and
resume flight.
FLIGHT
IN
·
ICING
CONDITIONS.
,
..
4!though flying in
known
icing conditions
is
prohibited,
an
unexpected
icing·.encounter should be handled
as
follows: ·
, ·
(1)
Turn pitot heat switch
ON
(if installed).
3-6
(2)
Turn back
or
change altitude to obtain
an
outside air
temperature
that
is
less
conducive to icing.
(3)
Pull cabin heat control full out and open defroster outlet
to
obtain
maximum windshield
defroster
airflow. Adjust cabin air
control
to
~
I

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