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BEECHCRAFT
Debonair
C33
Bonanza
E33
and F33
COLD WEATHER OPERATION
PREFUGHT
INSPECTION
SectiontV
Normal
Procedures
All
accumulations of ice,
snow
and frost must
be
removed
from the wings, tail, control surfaces and hinges, pro-
peller, windshield,
fuel cell filler caps, crankcase vents,
and fuel vents.
lf such accumulations are not removed
completely, the airplane shall not be flown. The deposits
will
not
blow
off
in
flight.
While
an adverse
weight
factor is
clearly involved in the case
of
heavy deposits,
it
is less
obvious that even slight accumulations
will
disturb or com-
pletel·f
destroy the designed aerodynamic properties
of
the
airfoils.
The normal preflight procedures should then be
com-
pleted,
with
particular attention given
to
check
of
flight
controls for complete freedom of
movement
ENGINE
Use engine oil
in
accordance
with
Consumable Materials
in the HANDLING,
SERVICING
ANO
MAINTENANCE
Sec-
tion. Always pull the propeller·through by hand, opposite
the
direction
of
rotation, several times to clear the engine
and
"limber
up"
the cold, heavy oil before using the
starter. This
will
also lessen the load on the battery
if
ex-
ternal power
is
not used.
Under very cold conditions,
it
may
be
necessary
to
preheat
the engine prior to a start. Particular attention should be
given
to
the oil cooler, engine sump and propeller hub
to
ensure proper preheat. A start
with
congealed oil
in
the
system may produce an indication of normal pressure
im-
mediately after the start,
but
then the oil pressure may
de-
August
1982
4-19
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