26 July 1993: Bombardier Aerospace Flight 388 [de], a prototype Canadair CRJ100, aircraft registration C-FCRJ, crashed in Byers, Kansas, after entering a deep stall and rolling inverted during a test flight. Attempting to recover, the copilot deployed the anti-spin parachute but it immediately detached from the aircraft, and the ensuing crash killed all three aircraft occupants: both pilots and a flight test engineer. The accident was attributed to the pilot's unexplained failure to cease a lateral stability test maneuver once the stick shaker actuated, and the crew's failure to correctly configure the anti-spin chute system earlier in the flight.