Alberta

While on a fire fighting mission, the left wing detached in flight and the aircraft crashed, bursting into flames. Sole on board, the pilot was killed. It is believed that the wing detached following a structural failure.

Pacific Western Airlines scheduled early morning flight 501 to Edmonton was pushed-back from the gate at 07:35. After engine start the aircraft taxied to runway 34 for departure. Takeoff was begun at 07:42 from the intersection of runway 34 and taxiway C-1. About 20 seconds into the takeoff roll, at an airspeed of approximately 70 knots, the flightcrew heard a loud bang which was accompanied by a slight veer to the left. The captain immediately rejected the takeoff using brakes and reverse thrust. Both the crew members suspected a tire on the left main landing gear had blown. The captain decided to taxi clear of the runway at taxiway C-4. Approaching C-4, the crew a.o. noted that left engine low pressure unit rpm was indicating 0 per cent. Twenty-three seconds after the initiation of the rejected takeoff, the first officer called clear of the runway on tower frequency: "501 clear here on Charlie 4". The purser then entered the flight deck and reported a fire on the left wing. The control tower then confirmed that there was a fire: "Considerable amount off the back - on the left side engine there - and - eh - it's starting to diminish there. Eh - there's a fire going on the left side." One minute and two seconds had passed since the initiation of the rejected takeoff. Immediately after this the purser further stated that "the whole left-hand side, the whole back side of it is burning". The captain discharged a fire bottle into the engine and the first officer requested emergency equipment. At an elapsed time of 1 minute 36 seconds, the cockpit fire warning bell activated. Simultaneously, the purser re-entered the cockpit and reported that it was getting bad at the back. The captain stopped the aircraft the crew then carried out the procedures for an emergency evacuation, which was initiated at an elapsed time of 1 minute 55 seconds. All 119 occupants were evacuated, among them 29 were injured. The aircraft was destroyed.

On final approach to runway 29, the crew attempted to drop the load that jammed on the rear ramp. The aircraft banked left, causing the left wing to hit the ground. The aircraft went out of control and crashed. All seven crew members (six Canadians and one American) were killed.

The crew started the takeoff procedure from a runway contaminated with melted snow. In snow falls, the airplane was unable to gain sufficient speed so the captain decided to abandon the takeoff and initiated an emergency braking maneuver. Unable to stop within the remaining distance, the airplane overran and came to rest few dozen meters further. There were no injuries among the occupants while the aircraft was damaged beyond repair.

On final approach to Edmonton Airport runway 30, the airplane lost height and crashed on the roof of the Royal Alexandra Hospital. The airplane was destroyed and both occupants were seriously injured. A day later, the pilot died from his injuries.

Crashed in unknown circumstances in Slave Lake while engaged in a firefighting mission. The pilot, sole on board, was killed.

While approaching RCAF Suffield in turbulences, the pilot initiated a right turn when the right wing struck trees. The aircraft crashed and was damaged beyond repair. All four occupants were rescued.

The single engine airplane failed to climb following a downhill takeoff that was completed with a tailwind. It bounced several times then struck trees, stalled and came to rest in a marsh. Two occupants were injured while three others were unhurt.

Crashed on takeoff for unknown reasons. All four occupants were killed.

En route from Lethbridge to Vernon, while cruising at an altitude of 12,000 feet, the pilot declared an emergency to ATC after a fire erupted in the rear of the cabin. The crew reduced his altitude and decided to divert to Pincher Creek Airport but fire and smoke spread in the cabin. In such conditions, the crew attempted an emergency landing in an open field located 8 km east of Brocket. The airplane landed and came to rest in flames. While all 28 occupants were able to evacuate uninjured, the aircraft was destroyed.