On 11 February 1978, Pacific Western Airlines Flight 314, a 737-200, crashed at Cranbrook Airport, near Cranbrook, British Columbia

Cranbrook, British Columbia

Cranbrook, British Columbia is a city in southeast British Columbia, located on the west side of the Kootenay River at its confluence with the St. Mary's River, It is the largest urban centre in the region known as the East Kootenay. As of 2006, Cranbrook's population is 18,267, and the...

, Canada, killing 42 of the 49 people on board.

The aircraft, on a scheduled flight from Edmonton

Edmonton

Edmonton is the capital of the Canadian province of Alberta and is the province's second-largest city. Edmonton is located on the North Saskatchewan River and is the centre of the Edmonton Capital Region, which is surrounded by the central region of the province.The city and its census...

, via Calgary

Calgary

Calgary is a city in the Province of Alberta, Canada. It is located in the south of the province, in an area of foothills and prairie, approximately east of the front ranges of the Canadian Rockies...

 and Cranbrook, to Castlegar Airport

Castlegar Airport

The West Kootenay Regional Airport, is a small regional airport located south southeast of Castlegar, British Columbia. Owned and operated by the City of Castlegar, YCG has a passenger terminal. Due to the mountainous terrain impinging on both runway approaches, there is no possibility of a...

 crashed after its thrust reversers did not fully stow following a rejected landing that had been executed in order to avoid a snowplow

Snowplow

A snowplow is a device intended for mounting on a vehicle, used for removing snow and ice from outdoor surfaces, typically those serving transportation purposes...

. Calgary ATC was considerably in error in its calculation of the Cranbrook arrival time and the flight crew did not report while passing a beacon on final approach.