Officials at the DHMİ said the radar station based in Ankara facilitated communication between the private airline aircraft, which was on its way to Isparta from İstanbul, and the Isparta control tower for the pilots to get the tower’s flight instructions at 11:23 p.m., shortly before the plane took off from İstanbul. The plane disappeared from radar surveillance at 1:45 a.m. Officials at Isparta’s Süleyman Demirel Airport tower said communication was cut off when the tower was instructing the pilots to “keep approaching.” However no emergency signal was sent prior to the communication cutoff.
Emergency signals help radar stations, which in this case would have picked up signals not only in Isparta but also in Ankara and Antalya, locate the site of a plane crash much more quickly and easily than would normally be possible. The officials said other pilots transiting in the same zone at the time of the craft’s disappearance were questioned, however none were able to offer any information.
Officials first calculated that the plane might have crashed into Burdur Lake. The wreckage was located only after military radar detected its whereabouts. No explosion occurred after the crash because the plane’s fuel tank was not completely filled as the flight was only short distance, DHMİ officials explained.