6-22 Developed for Training Purposes Leerjet 35/36
February 1998
CAE SimuFlite
Deicing Procedures
One-step deicing involves spraying the aircraft with a heated,
diluted deicing/anti-icing fluid to remove ice, snow, or frost. The
fluid coating then provides limited protection from further accu-
mulation.
Two-step deicing involves spraying the aircraft with hot water or
a hot water/deicing fluid mixture to remove any ice, snow, or
frost accumulation followed immediately by treatment with anti-
icing fluid (usually Type II/IV FPD fluid).
Deice the aircraft from top to bottom. Avoid flushing snow, ice,
or frost onto treated areas. Start the deicing process by treating
the horizontal stabilizer followed by the vertical stabilizer. Con-
tinue by treating the fuselage top and sides. Finally, apply deic-
ing fluid to the wings.
Deicing fluid should not be applied to:
Q
pitot/static tubes, static ports, temperature probes, AOA
vanes, or TAT probe
Q
gaps between control surfaces and airfoil
Q
cockpit windows
Q
passenger windows
Q
air and engine inlets and exhausts
Q
vents and drains
Q
wing and control surface trailing edges
Q
brakes
CAUTION: Do not use deicing fluid for engines. After deicing
engine, start engine(s) immediately to prevent any reicing
condition. Select engine anti-ice on after engine start.
To Next Page
Loading...
