Deicing operations typically commence once temperatures drop below 30 degrees, or generally from October through April, and pilots have the discretion to request services at any time.

Why do planes need to be deiced?

When ice builds up along the leading edges of the wings it changes their shape – and thus their ability to generate lift. Aircraft are fitted with de-icing systems, but in severe conditions even these can be inadequate, requiring the application of high-pressure blasts of antifreeze.

What is the main purpose in the De-icing system?

Fluid deicing

Sometimes called a weeping wing, running wet, or evaporative system, these systems use a deicing fluid—typically based on ethylene glycol or isopropyl alcohol to prevent ice forming and to break up accumulated ice on critical surfaces of an aircraft.