[6l]OOffiDrnU
Im~
SHUTDOWN AND POSTFUGHT
When the aircraft must be
parked
outside
in
extremely
cold or fluctuating
freeze/thaw temperatures, perform the
foUowing
in
addition to
the
normal
shutdown and post-flight procedures:
1.
Chock
main
gear
wheels
before releasing park brake. Do not
leave
aircraft
parked
for
extended
periods
in
subfreezing
weather
with
parking
brake set. .
2.
Remove
ice, snow
and
dirt
from
landing
gear shock struts
and
wheel
wells.
Check gear doors, position switches, squat
switches,
wheels and tires.
3. Remove ice, snow and dirt
from
flaps
and
flap
tracks before
retract-
ing
flaps.
4. If the aircraft is to be
parked
for
an extended period at ambient
tem-
peratures
of
200F
(-6.7°C)
or
below,
it
is recommended that the
crew oxygen masks be
stowed
in
a heated
room
or the cabin
should
be warmed to
at
least
20°F
(-6.7°C)
before
use.
5.
If
the aircraft is to remain
in
subfreezing
temperatures
for
an
extended
period, remove water and beverage containers
from
the
aircraft. Remove toilet
tank
and reservoir
fluid
from
aircraft or
add
ethylene
glycol
base
anti-freeze
containing antifoam agent
to
the
flush
fluid.
6.
Install
aircraft protective
covers.
7. If
the
aircraft
will
be exposed to
extremely
cold
temperatures
for
an
extended
period,
it
is recommended that the batteries be
removed
and stored
in
a warm area
if
possible.
2-44
FAA
APPROVED
4-30-76
REISSUED
2-25-81,
CHANGE
10
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