The 1973 Paris Air Show crash was the crash of the second production Tupolev Tu-144 at Goussainville, Val-d'Oise, France, which killed all six crew and eight people on the ground. The crash, at the Paris Air Show on 3 June 1973, damaged the development program of the Tupolev Tu-144. One theory is that a French Mirage jet sent to photograph the aircraft without the knowledge of the Soviet crew caused the pilots to take evasive manoeuvers, resulting in the crash. Another theory is that in a rivalry with the Anglo-French Concorde, the pilots attempted a maneuver that was beyond the capabilities of the aircraft.