Bashkirian Airlines Flight 2937 heading from Moscow (Russia) to Barcelona (Spain). Plane: Tupolev 154 / DHL flight heading from Bergamo (Italy) to Brussels (Belgium). Plane: Boeing 757
This happened on July 1, 2002. The flight controller, overwhelmed by the work and with technical problems, didn't notice that the Tupolev and the Boeing were in collision course. When he notices it, is too late. He orders the Tupolev to descend, even if the anti-collision device says ascend. The Boeing's device says descend, and they follow the instruction. The controller doesn't notice that until the last moment.
click here to see where to watch or .
Ready to Watch Air Crash Investigation **DUPLICATE**, Season 2, Episode 4?