Accident
On 1 July 2002, a Boeing B757-200 and a Tupolew TU154M collided in mid-air near Überlingen, a town on the northern shore of Lake Constance (Bodensee) in Germany. The collision resulted in 71 fatalities. Both aircraft were destroyed. The accident also caused damage to fields and forests in the area.
Aircraft
The two aircraft involved were a Boeing B757-200 and a Tupolew TU154M, both commercial airliners.
Investigation
The investigation was carried out by the German Federal Bureau of Aircraft Accident Investigation (Bundesstelle für Flugunfalluntersuchung, BFU) in accordance with the German Aviation Accident Investigation Act. The sole purpose of the investigation was to prevent future accidents and incidents; it was not intended to determine blame or liability. The BFU's final report was issued in May 2004. The investigation included examination of the aircraft wreckage, flight data recordings, and radar data from the Zurich Area Control Center (ACC Zürich). It also analyzed the operation of the Airborne Collision Avoidance System (ACAS/TCAS) and the actions of air traffic control. Medical and pathological data were considered as part of the investigation.