On 11 August 1957, the aircraft operating this flight, a Douglas DC-4, crashed in bad weather 7.2 kilometres (4.5 mi) west of Issoudun, Quebec, killing all 79 people on board.

Then, after stopping in Reykjavík for 66 minutes to refuel, it proceeded on the next leg of its route to Canada.

After entering Canadian airspace, the flight crew radioed that they wished to bypass Goose Bay and proceed to Montreal instead.

Encountering severe turbulence, the aircraft somehow lost control and went into a near-vertical dive from which it could not recover.

At 18:15 UTC, at a speed of over 200 knots, the aircraft slammed into the ground near Issoudun in a 70-degree nose-down position and a slight left bank angle.