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
Sabena Flight 503 communication was cut off. The aircraft had crashed somewhere in the mountains of Rieti, Italy North-East of Rome and was now missing. Sabena itself got notified about the missing aircraft that same night at 23:15 but would not make an official statement until the morning of the following day. The airplane had crashed somewhere in the mountains of Rieti, Italy North East of Rome which were known for being difficult to access and also lay in a nature reserve where wolves roamed. The Italians immediately started a search and rescue mission to locate the missing aircraft and rescue its occupants.