Propair Flight 420, chartered by General Electric to transport their workers to their facility in Lachine, Quebec and Peterborough, Ontario, took off from Dorval. The left brakes overheated during take-off leading to a fire in the left wing which ruptured pipelines. The crew made an emergency landing. All 11 passengers and crew on board were killed. As a result of this accident, an overheat warning system inside the wheel-wells of every Metroliner was required. The pilot was Captain Jean Provencher. The co-pilot was Walter Stricker.
The official summary:
The aircraft, a Fairchild-Swearingen Metro II (SA226-TC), registration C-GQAL, serial number TC 233, took off as Propair 420 from Dorval / Montréal International Airport, Quebec, around 0701 eastern daylight time bound for Peterborough Airport, Ontario. On board were nine passengers and two pilots. About 12 minutes after take-off, at an altitude of 12 500 feet above sea level (asl), the crew advised air traffic control (ATC) that they had a hydraulic problem and requested clearance to return to Dorval. ATC granted this request. Around 0719, at 8600 feet asl, the crew advised ATC that the left engine had been shut down because it was on fire. Around 0720, the crew decided to proceed to Mirabel / Montréal International Airport, Quebec. At 0723, the crew advised ATC that the engine fire was out. On final for Runway 24, the crew advised ATC that the left engine was again on fire. The landing gear was extended on short final, and when the aircraft was over the runway, the left wing broke upwards. The fuselage pivoted more than 90? to the left around the longitudinal axis of the aircraft and struck the ground. All 11 occupants were fatally injured.
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