On 8 April 1954, a Royal Canadian Air Force Canadian Car and Foundry Harvard Mk.
II 3309 collided with Trans-Canada Airlines North Star CF-TFW over Moose Jaw, Saskatchewan, killing 36 people aboard the aircraft and one person on the ground.
 As a result of this crash, training flights are restricted south of the Trans Canada Highway and civil aviation transit north of the highway.

On 21 September 1955: BOAC Argonaut G-ALHL which was traveling from Rome to Tripoli crashed on its fourth landing attempt in poor visibility and strong winds.
Fifteen of the 40 occupants died when the aircraft descended too low, struck trees approximately 1,200 ft short of runway 11 and subsequently impacted terrain.

On 24 June 1956: BOAC Argonaut G-ALHE crashed shortly after taking off from Kano Airport, Nigeria into a thunderstorm, killing 29 of the 38 passengers and three of the seven crew members.

On 9 December 1956: Trans-Canada Air Lines Flight 810 crashed into Mount Slesse on a flight from Vancouver to Calgary, killing all 62 people on board the aircraft.
Among the dead were five Canadian Football League players, including four members of the Saskatchewan Roughriders and one member of the Winnipeg Blue Bombers, as well as a CFL official returning home from the previous day's annual All-Star game at Empire Stadium in Vancouver.

On 11 October 1966, CF-TFM/HP925 crashed near Garoua, Cameroons, carrying spurious registration I-ACOA, believed to be carrying a cargo of machine guns bound for Burundi.
Ex- Overseas Aviation, bought at Gatwick by Mike Keegan, it had been ferried to Coventry for onward sale; under new ownership, flown to Newcastle (UK), with a subsequent long-term stay parked adjacent to the wooden control tower and subject to a restraining Court Order.
Eventually re-registered in Panamanian markings, it was flown to Limburg, Netherlands, but ended up being involved in various arms shipment flights to West Africa.
After the accident, the movements of this aircraft were investigated and extensively reported by, it is thought, the "Sunday Times" newspaper.
Re-registration history and movements after leaving NCL courtesy of "Propliner" magazine's website.

On 4 June 1967, Argonaut G-ALHG, owned by British Midland Airways, crashed near the centre of Stockport, Greater Manchester, United Kingdom.
Fatalities included 72 of the 84 on board; 12 others were seriously injured.
On 8 April 1954, a Royal Canadian Air Force Canadian Car and Foundry Harvard Mk.II 3309 collided with Trans-Canada Airlines North Star CF-TFW over Moose Jaw, Saskatchewan, killing 36 people aboard the aircraft and one person on the ground.  As a result of this crash, training flights are restricted south of the Trans Canada Highway and civil aviation transit north of the highway.
On 21 September 1955: BOAC Argonaut G-ALHL which was traveling from Rome to Tripoli crashed on its fourth landing attempt in poor visibility and strong winds. Fifteen of the 40 occupants died when the aircraft descended too low, struck trees approximately 1,200 ft short of runway 11 and subsequently impacted terrain.
On 24 June 1956: BOAC Argonaut G-ALHE crashed shortly after taking off from Kano Airport, Nigeria into a thunderstorm, killing 29 of the 38 passengers and three of the seven crew members.
On 9 December 1956: Trans-Canada Air Lines Flight 810 crashed into Mount Slesse on a flight from Vancouver to Calgary, killing all 62 people on board the aircraft. Among the dead were five Canadian Football League players, including four members of the Saskatchewan Roughriders and one member of the Winnipeg Blue Bombers, as well as a CFL official returning home from the previous day's annual All-Star game at Empire Stadium in Vancouver.
On 11 October 1966, CF-TFM/HP925 crashed near Garoua, Cameroons, carrying spurious registration I-ACOA, believed to be carrying a cargo of machine guns bound for Burundi. Ex- Overseas Aviation, bought at Gatwick by Mike Keegan, it had been ferried to Coventry for onward sale; under new ownership, flown to Newcastle (UK), with a subsequent long-term stay parked adjacent to the wooden control tower and subject to a restraining Court Order. Eventually re-registered in Panamanian markings, it was flown to Limburg, Netherlands, but ended up being involved in various arms shipment flights to West Africa. After the accident, the movements of this aircraft were investigated and extensively reported by, it is thought, the "Sunday Times" newspaper. Re-registration history and movements after leaving NCL courtesy of "Propliner" magazine's website.
On 4 June 1967, Argonaut G-ALHG, owned by British Midland Airways, crashed near the centre of Stockport, Greater Manchester, United Kingdom. Fatalities included 72 of the 84 on board; 12 others were seriously injured.
Canadair North Star