Air Crash Investigation - Season 21 Episode 9 - Seconds From Touchdown On 18 June 1998, Propair Flight 420 crashes while attempting to conduct an emergency landing at Montréal–Mirabel International Airport after an in-flight fire causes its left wing to fail, killing all 11 people on board. It was later determined that the aircraft's left brakes overheated during takeoff. #mayday #aircrash | Phong Hoàng