Preventing Mid-Air Collisions with Latest Standards in Traffic Collision Avoidance Systems (TCAS II)

On the night of July 1, 2002, when a Boeing 757 crashed with a Tupolev-154 at 35,000 feet over the towns of Überlingen and Owingen, in southern Germany, 71 lives were lost. Based on the investigation report by German Federal Bureau of Aircraft Accident Investigation, ATC could not identify that the