Airplane Crash - Bear Mountain, Thiells, New York 12/01/1974
Details of airplane crash/ shootdown - Bear Mountain, Thiells, New York
| Date | 12/01/1974 |
| Time | 19:26 |
| Location | Bear Mountain, Thiells, New York |
| Operator | Northwest Orient Airlines |
| Flight # | 6231 |
| Route | New York City, NY - Buffalo, NY |
| Type | Boeing B-727-251 |
| Registration | N274US |
| Cn/In | 20296 |
| Aboard | 3 |
| Fatalities | 3 |
| Ground | 0 |
| Summary | The aircraft stalled in a climb from which recovery was not effected. The loss of control of the aircraft because the flight crew failed to recognize and correct the aircraft's high-angle-of-attack, low-speed stall and its descending spiral. The stall was precipitated by the flight crew's improper reaction to erroneous airspeed and Mach indications which had resulted from a blockage of the pitot heads by atmospheriicing. Contrary to standard operational procedures, the flight crew had not activated the pitot head heaters. |
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