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ANTI-ICE SYSTEMS (CONT)
RADOME ANTI-ICE
• Aircraft
35-067
thru 35-112
except
35-107.
Aircraft
36-018
thru 36-031.
Anti-icing
the
radome prevents ice from shedding off
the
nose and entering
the engines. Anti-icing the radome
is
accomplished by setting the. WSHLD
& RADOME/RADOME switch
to
RADOME. Alcohol for radome anti-icing
only
will
last
for approximately
1-1/2
hours.
The
ALC
AI
light
will
Ulumi-
nate when alcohol
is
depleted.
Set
WSHLD & RADOMEIRADOME switch
OFF when ALC
AI
light Uluminates
or
clear of icing conditions.
-"-
Use WSHLD & RADOME position
of
the switch
if
bleed
~,.
airflow for windshield anti-ice has failed, or as needed .
• Aircraft
35-107,35-113
and
subsequent. Aircraft 36-032
and
subsequent.
Anti-icing
the
radome prevents ice from shedding off
the
nose and entering
the engines. Anti-icing the radome
is
accomplished
by
setting
the
WSHLD/RADOME/RAD switch
to
RAD.
Alcohol for radome anti-icing
only
will
last for approximately 2 hours 9 minutes.
The
ALC
AI
light
will
il-
luminate
when
alcohol level is low. Set WSHLD/RADOME/RAD switch
OFF when alcohol
is
depleted
or
clear of icing conditions.
NOTE"-
Use WSHLD/RADOME position of the switch
if
bleed
-,.
air for the windshield anti-ice has failed or as needed.
WING AND HORIZONfAL STABIUZER ANTI-ICE
Wing and horizontal stabilizer anti-ice systems utilize engine bleed air direct-
ed through diffuser tubes
in
the leading edges for anti-icing.
1.
STAB WING
HEAT
Switch - ON.
2. Monitor
WING
TEMP
and
STAB
TEMP Indicators and
WING
OV
HT
and
STAB
OV HT lights. Maintain the indicators in the green
range. Adjust power as necessary
to
maintain anti-icing and pres-
surization. If indicators progress to the yellow range, structure
is
approaching "too hot" condition. Corrective action can be taken by
turning the
STAB
WING
HEAT switch OFF
andlor
reducing engine
RPM until indicators are back into the green range.
-_NOTE
"-
If
the
system
is
on
and the
WING
TEMP or
STAB
TEMP
,.
indicator
is
in
the red range, a system failure
is
indicated.
FAA APPROVED 4-30-76
REISSUED
2-25-81, CHANGE
10
2-73
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