Learjet 35 - Page 458

6-24 Developed for Training Purposes Leerjet 35/36
February 1998
CAE SimuFlite
When performing snow removal, observe the following.
Q
Do not use isopropyl alcohol on rubber or plastic compo-
nents.
Q
Do not use isopropyl alcohol on windows or above fuse-
lage window line. Alcohol crazes and cracks acrylic win-
dows.
Q
Remove all snow accumulations on fuselage forward of
windshield. Avoid damage to pitot tubes.
Q
Avoid using deicing fluid for snow removal. Dilution of
deicing fluid by melted snow results in a weak mixture
that can refreeze.
Q
Do not use tools to scrape, scratch, or chip ice from sur-
faces or from between fixed and moveable surfaces or
components.
Q
Do not beat aircraft surface to loosen ice.
Q
Avoid hot air temperatures above 200°F (93.3°C) when
using heat to melt snow, ice, or frost.
Q
Use hot air carefully around windows. Excessive temper-
atures on windows can crack or craze cold windows.
Q
Exercise extreme care when using hot air to prevent
damage to hoses, painted surfaces, and acrylic, plastic,
fiberglass, and rubber components.
During deicing observe the following.
Q
Avoid excessive use of deicing fluid to prevent flushing of
slush into areas forward of control surfaces.
Q
When applying fluid, avoid pressures 300 PSI or greater.
Q
Exercise extreme caution when moving deicing equip-
ment around aircraft. Maintain adequate separation
between equipment and aircraft.