According to international and national aviation safety requirements, no aircraft with winter pollution (ice, frost, snow, sleet) on sensitive and critical surfaces is allowed to fly. These contaminations shall be removed from the sensitive surfaces of the plane through anti-icing/de-icing operations and these surfaces shall be kept clean until the plane is on the ground, therefore, Saman Air Services Company, in accordance with the services that the company can provide and at the same time as the start of precipitation and according to the requirements of the Civil Aviation Organization in order to maintain flight safety conditions during snowfall, has carried out anti-icing/de-icing operations by modern and equipped DE/ICE devices and equipment on outgoing flights in most airports of the country.