| Date of Accident: | 01 December 1974 |  |
| Airline: | Northwest Orient |  |
| Aircraft: | Boeing 727-251 | |
| Location: | Stony Point, New York | |
| Registration: | N274US | |
| Previous Registrations: | --- | |
| Flight Number: | 6231 | |
| Fatalities: | 3:3 | |
| MSN: | 20296 | |
| Line Number: | 777 | |
| Engine Manufacturer: | Pratt & Whitney | |
| Engine Model: | JT8D-7B | |
| Year of Delivery: | 1969 | |
| Accident Description: | The aircraft's pitot tubes (which measure ram air and thus provide an air speed indication) were iced over after the crew failed to activate the anti-ice system in freezing rain conditions. This led to erroneous airspeed indications, a stall, and a spin from which the crew was unable to recover. Pilot error. |
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