Cessna 208B - Inadvertent Icing Encounter

CESSNA
MODEL
2088 (675 SHP)
SECTION
3
EMERGENCY PROCEDURES
1 ICING (Continued)
INADVERTENT ICING ENCOUNTER
1. lgnition Switch -ON.
2. Inertial Separator - BYPASS.
3. PITOTISTATIC, STALL, WINDSHIELD, PROP ANTI-ICE -ON
4. If above 20,000 feet:
A. Airspeed
- 160 KlAS Maximum.
6. Altitude - DESCEND to 20,000 feet or below as soon as
practical.
5. Turn back or change altitude to obtain an outside air
temperature that is less conducive to icing.
6. Ignition Switch
- OFF after 5 minutes operations.
7. Bleed Air Heat Switch and Temp Control
- ON and ADJUST.
8. Push Fwd Cabin Heat control full in and pull Defrost control full
out to obtain maximum windshield defroster effectiveness.
9. Propeller RPM - INCREASE to 1900 RPM to minimize ice build-
UP.
bAU I IUN
TlON IS NOTED. MOMENTARILY
IF EXCESSIVE
VlBRA
REDUCE PROPELLER RPM TO 1600 WITH THE
PROPELLER CONTROL, THEN RAPIDLY MOVE THE
CONTROL FULL FORWARD. CYCLING THE RPM
FLEXES THE PROPELLER BLADES AND
HIGH RPM
INCREASES
CENTRIFUGA
SHED MORE READILY.
L FORCE, CAUSING ICE TO
10.lf icing conditions are unavoidable, plan a landing at the nearest
airport. With an extremely rapid ice build-up, select a suitable "off
airport" landing site.
11 .With an ice accumulation of 114 inch or more on the wing leading
edges, be prepared for a significantly higher power requirement,
approach speed and stall speed and longer landing roll.
12.lf necessary, set up a forward slip for visibility through the lefl
portion of the windshield during the landing approach.
(Continued Next Page)
U.S. 3-17