Raytheon Beech Baron E55 - Unscheduled Servicing

RayCheon
Aircraft
Company
BARON
55
AND
58
SHOP
MANUAL
UNSCHEDULED
SERVICING
DNCING
AND
ANTI-ICING
OFAIRPLANES ON
THE
GROUND
Deicing
is the
removal
of
ice,
frost and
snow
from
the
airplane’s
exterior after
it
has
formed.
Anti-icing
is
a
means
of
keeping
the
surface
clear
of
subsequent
accumulations
of
ice,
snow
and
frost.
Snow
and
ice
onan
airplane
will
seriously
affect
its
performance.
Even formation of
a
smooth
covering
of
ice
on
the
wing
will
change
the
contour
of the
wing,
producing
an
increase
in
drag
and
a reduction
in
effective
lift
coefficient.
Frost
or
frozen
snow
may
present
an
even
greater
hazard sines
the
surface
texture
is
rough
and will
seriously
disrupt
the
smooth flow
of
air
across
the
wing.
SNOW
REMOVAL
WARNING:
Inhalation
of
deicing
mists, aerosols,
or
high
concentration
of
heated
vapors
may
pose
a
hazard
to
humans.
Apply
deicing
fluid
only
in
well-ventilated
areas.
Avoid
inhaling
vapors
or
mists.
n
adequate
ven-
tilation,
designed
to
keep
mists
or
vapors
below
harmful levels
is
not
present,
maintenance
personnel
must
wear
approved
respiratory
protective
devices,
The best
way
to
remove
snow
is
to
brush it off
with
a
squeegee,
heated
water,
soft brush
or
mop.
Exercise
care
in
order
to
avoid
damage
to
any
components
such
as
antennas,
vents,
stall
warning
devices,
etc.
Remove loose
snow
from
the
fuselage
before
heating
the
airplane
interior; otherwise,
at
low
temperatures,
the
snow
may
melt.
refreeze
and
build
up
a
considerable
depth
of
ice.
Never
attempt
to
chip
or
break
frozen
snow
from
the
airplane.
If
the
a~rplane
has
been
hangared
and
snow
is
falling,
or
there is
active
frost,
coat
the
airplane
surfaces
with
an
anti-icing
sOIutKKI.
Snow
falling
on
warm
surfaces
will
have
a
tendency
to
melt,
then
refreeze.
After
snow
has
been remdved from the
airplane,
inspect
the
airplane
for evidence of
residual
snow,
particularly
in
the
area
of
control surface
gaps
and
in
the
hinge
areas.
Carefully
inspect
the
static
ports
for
evidence
of
obstruction.
Check
the
exterior
of
the
airplane
for
damage
to
external
components
that
may
have
occurred
during
the
snow
removal
operations.
Control
surfaces should
be moved
to
ascertain that
they
have
full
and
free
movement.
The
landing
gear
mechanism,
doors,
wheel
wells,
uplocks
and
microswitches should be
checked for
ice
deposits
that
may
impair
proper
function.
When the
airplane
is
hangared,
or
heated
water
is
used
to
melt
snow,
any
melted
run-off
may
freeze
again
if
the
airplane
is
subsequently
moved into
freezing temperatures.
Any
measures
taken
to
remove
frozen
deposits
while
the
airplane
is
on
the
ground
must
also
prevent
the
possible
refreezing
of the
liquid.
Should
freezing
precipitation
continue
following
snow
removal,
the
airplane
surfaces
should
be
treated
with
anti-
icing
solutions.
FROST
REMOVAL
Heavy
frost that
cannot
be
removed
by
wiping
with
a
gloved
hand
or
soft towel
must
be removed
by
placing
the
airplane
in
a
warm
hangar
or
by
the
application
of
a
deicing
fluid.
After removal
of all
frost
from
the
airplane
exterior,
check
all
external
components
for
damage
that
may
have
occurred
during
frost
removal.
E23
SECTION 2
5t