ASN Wikibase Occurrence # 44772
Last updated: 25 August 2016
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Narrative:The pilot obtained a "standard weather briefing," filed an instrument flight rules flight plan, and took off. Four minutes later, after several routine radio communications, the controller issued the pilot a radar vector. He did not acknowledge. The controller repeated the vector. There was a squelch break and in the background, a noise and tone could be heard. The pilot reported, "We have got some sort of malfunction going on here." Witnesses reported hearing an engine "sputtering" and losing power. The airplane emerged from a low overcast in a flat counterclockwise spin. The airplane impacted a street and driveway in a residential subdivision. On-scene investigation disclosed the landing gear and flaps were retracted. Both elevators were deflected up and jammed by impact. Subsequent examination of the airplane revealed the cockpit fuel selector handles were in the LEFT TANK-LEFT ENGINE/RIGHT TANK-RIGHT ENGINE positions. The left and right fuel selector valves, located in the wheel wells, were OFF and ON, respectively. Analysis of the ATC communications tape revealed two engines operating until the pilot reported the "malfunction," then which only one engine sound could be heard. A steady 1,000-hertz tone, similar to an aural stall warning system, was also heard. Both engines, turbochargers, and propellers were later disassembled and examined. No anomalies were noted. Neither propeller was feathered. On the day before the accident, the pilot had undergone recurrent ground and flight training, a flight review, and an instrument proficiency check in the airplane. Flight time totaled 5.3 hours.
Beechcraft 58P Baron
|C/n / msn:|| TJ-444|
|Fatalities:||Fatalities: 3 / Occupants: 3|
|Airplane damage:|| Written off (damaged beyond repair)|
|Location:||Fort Collins, CO -
United States of America
|Phase:|| En route|
|Departure airport:||Loveland, CO (FNL)|
|Destination airport:||Omaha, NE (OMA)|
CAUSE: the loss of engine power for undetermined reasons, and the pilot's failure to maintain adequate airspeed which resulted in a stall/spin. Clouds and the pilot's diverted attention were contributing factors.
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