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TAXIING
Use normal taxi procedures
if
the ramp and
taxiways
are clean and
dry.
If
it is necessary to taxi
on
ice,
snow, slush,
or
water,
taxi at reduced speed
and
allow
greater distance
for
stopping because
of
decreased
braking
efficiency.
If
taxi is to be accomplished through slush
or
snow, use the brakes to create
some friction-induced heating
of
the
brake
discs to prevent the brakes
from
freezing.
Use both engines for taxi on slippery surfaces. Directional control
may
be
difficult
to maintain during single-engine taxi on a
slick
surface.
Use anti-ice systems as required.
Insofar as possible, taxi should be accomplished
with
the
fBps
up on snow
or
slush covered surfaces.
Avoid
taxiing in the exhaust
wake
or
propeller wash of other aircraft on oth-
er
than hatd packed
or
dry
surfaces.
Thrust
reversers
(if
installed)
should be used
with
extreme caution on
slip-
pery surfaces and only when absolutely necessary to maintain directional
control.
Do not use thrust reversers
(if
installed)
if
taxiways
and
ramps are covered
with slush, ice, standing water or snow except
in
the interest
of
safety.
TAKEOFF
If anti-ice systems are required
for
takeoff, the systems should be energized
prior to setting takeoff
power.
Refer to Section V
for
aircraft takeoff perfor-
mance
data with anti-ice systems
in
operation.
Do not take
off
with
runway
water
or
slush
accumulation of
3/4
inch
(l9mm) or
more.
Do not take
off
with
frost,
snow,
or ice
on
the
wings
or aircraft control
sur-
faces,
including
the horizontal stabilizer and elevators. Refer to
I...earjet
Ad-
dendum -
DE-ICING/ANTHCING
for de-icing/anti-idng procedures.
2-42
Even small accumulations of
ice
on the wing
leading
edge can cause aerodynamic
stall
prior to activation
of
the stick shaker and! or pusher. These ice accumulations
can also cause angle-of-attack indicator infonnation to
be
unreliable.
FAA
APPROVED
4-30-76
REISSUED
2-25-81,
CHANGE
10
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