SECTION 8
CESSNA
AIRPLANE HANDLING, SERVICE
MODEL 208B 867 SHP
AND MAINTENANCE
GARMIN G1000
U.S.
GROUND DEICE/ANTI-ICE OPERATIONS
(Continued)
Deicing and anti-icing fluids are aqueous solutions which work by
lowering the freezing point of water in either the liquid or crystal phase,
thus delaying the onset of freezing. For this reason, they are referred to
as Freezing Point Depressant (FPD) fluids. Deicing fluid is classified as
Type I. Anti-icing fluid is classified as Type II, Type III, or Type IV.
Deicing and anti-icing with fluids may be performed as a one-step or
two-step process. The one-step deicing procedure involves using Type
I deice fluid to remove ice and slush from the airplane prior to departure
and to provide minimal anti-icing protection as provided in the Type I
holdover timetable (refer to FAA notice 8900.196, dated 8-16-12 or
later).
The procedure involves applying Type II, Type III, or Type IV anti-ice
fluid to make sure the airplane remains clean after deicing. Type II,
Type III, or Type IV fluid is used to provide longer-term anti-icing
protection. Type I, Type II, Type III, and Type IV fluids have time
limitation before refreezing begins, at which time additional deicing is
required. This time limitation is referred to as “holdover time”. Because
holdover time depends highly on a number of factors, charts can
provide only approximate estimates. It remains the responsibility of the
pilot-in-command to determine the effectiveness of any deicing or anti-
icing procedure. Refer to FAA notice 8900.196, dated 8-16-12 or later
for Type I, Type II, Type III or Type IV fluids.
CAUTION
Type I, Type II, Type III, and Type IV fluids are not
compatible and may not be mixed. Additionally, most
manufacturers prohibit the mixing of brands within a
type. However, the same spray equipment may apply
Type I and Type III fluids. Line personnel should be
supervised by the pilot in command to ensure proper
application of Type I deice, and Type II, Type III, or
Type IV anti-ice fluids.
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208BPHCUS-00
8-32
Summary of Contents for Cessna Grand Caravan Ex 208B
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