Trans-Canada Air Lines Flight 831
The crash site of Flight 831 | |
| Occurrence | |
|---|---|
| Date | November 29, 1963 |
| Summary | Unknown; possible systems failure, most probable cause PTC (Pitch Trim Compressor) failure and possible hydraulic stall due to high speeds reached at descent |
| Site | |
| Aircraft | |
| CF-TJN, the aircraft involved in the accident, pictured six months before accident | |
| Aircraft type | Douglas DC-8-54CF Jet Trader |
| Operator | Trans-Canada Air Lines |
| Call sign | TRANS-CANADA 831 |
| Registration | CF-TJN |
| Flight origin | Montreal-Dorval International Airport |
| Destination | Toronto International Airport |
| Occupants | 118 |
| Passengers | 111 |
| Crew | 7 |
| Fatalities | 118 |
| Survivors | 0 |
Trans-Canada Air Lines (TCA) Flight 831 was a scheduled Canadian flight from Montréal–Dorval International Airport to Toronto International Airport on November 29, 1963. About five minutes after takeoff in poor weather, the Douglas DC-8-54CF Jet Trader operating the flight crashed about 32 km (20 mi) north of Montreal, near Ste-Thérèse-de-Blainville, Quebec, Canada, killing all 111 passengers and seven crew members. The crash was the deadliest in Canadian history at the time. It was also the deadliest crash of a DC-8 at the time, and, as of 2025, the sixth-deadliest.