Sabena Flight Academy to the Saab Safir 91B, replaced in 1958 by the Cessna 310B and in 1981 by the Embraer Xingu. In 1991, the government gifted the "École d’aviation civile" to Sabena. It was first renamed Belgian Aviation School and then Sabena Air Training Center, and the school moved into a new building at Brussels National Airport. It was decided to carry out practical flight training in Phoenix in the USA because the weather in Arizona allows flights 365 days per year in a high and complex air traffic environment. Despite the bankruptcy of Sabena in 2001, the flying school continued in
Sun Country Airlines DC-10 in early 2001. In June 1999, the management of Sun Country launched a transformation from a charter carrier into a scheduled airline. New service from Minneapolis and Milwaukee began to destinations including Los Angeles, Seattle, Detroit, Washington, D.C. and Phoenix. The airline also started a frequent flyer program, Smile Awards. In 2001, Sun Country began to replace its entire fleet with Boeing 737 aircraft. As Sun Country reinvented itself, heavy competition from local incumbent carrier Northwest Airlines and the September 11 attacks caused a sharp decrease of traffic and revenue. The airline was losing large amounts of money by