Cessna 182 1973 - Icing and Cloud Flying Emergencies

FLIGHT
IN
ICING
CONDITIONS.
Although
flying
in
known
icing
conditions
is
prohibited,”
an
unexpected
icing
encounter
should
be
handled
as
follows:
(1)
Turn
pitot
heat
switch
"ON"
(if
installed).
(2)
Turn
back
or
change
altitude to obtain
an
outside
air
temperature
that is
less
conducive
to
icing.
(3)
Pull cabin
heater
control full out and
rotate
defroster
control
clockwise to obtain
windshield
defroster
airflow.
(4)
Increase
engine
speed
to
minimize
ice
build-up
on
propeller
blades.
(5)
Watch
for
signs
of
carburetor
air
filter
ice
and
apply
carburetor
heat
as required.
An
unexplained
loss
in manifold
pressure
could
be
caused
by
carburetor
ice
or
air
intake
filter
ice.
(6)
Plan
a
landing
at
the
nearest
airport.
With
an
extremely
rapid
ice
build-up,
select
a
suitable
"off
airport”
landing
site.
(7)
‘With
an
ice
accumulation
of
one-quarter
inch
or more
on
the
wing
leading edges,
be
prepared
for
significantly higher
stall
speed.
(8)
Leave
wing
flaps
retracted.
With
a severe
ice
build-up
on
the
horizontal
tail,
the
change
in
wing
airflow
direction
caused
by
wing
flap
extension could
result
in
a
loss
of
elevator
effectiveness.
(9)
Open
left
window
and,
if
practical,
scrape
ice
from
a
portion
of
the
windshield
for
visibility
in the
landing approach.
(10)
Perform
a
landing
approach
using
a
forward
slip,
if
necessary,
for
improved
visibility.
(11)
Approach
at
80
to
90
MPH,
depending
upon
the amount
of
ice
accumulation.
(12)
Perform
a
landing
in
level attitude.
3-8