Stamper RV-10 accident near Dubois, WY
On November 5, 2016, a Stamper RV-10 (airplane) was involved in an accident near Dubois, WY. 1 person died. Damage to the aircraft: destroyed.
- Date
- November 5, 2016
- Place
- Dubois, WY
- Aircraft
- Stamper RV-10 · Airplane
- Injuries
- 1 fatal, 0 serious, 0 minor
- Damage
- Destroyed
- Position
- 43.554°N, 109.709°W
- NTSB ID
- 20161105X23019
Official records · CEN17FA035
- Public docket: reports, statements and exhibits from the investigation
NTSB summary
HISTORY OF FLIGHTOn November 5, 2016, about 0756 mountain daylight time, an experimental, amateur-built Stamper RV-10 airplane, N924WY, impacted terrain following a loss of control shortly after takeoff from the Dubois Municipal Airport (DUB), Dubois, Wyoming. The private pilot was fatally injured, and the airplane was destroyed. The airplane was registered to and operated by the pilot under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91. Day visual meteorological conditions prevailed, and no flight plan was filed for the local test flight, which was originating at the time of the accident. A witness reported that he saw the airplane takeoff from runway 28 and that the airplane's right gull-wing cabin door rotated open upon liftoff. The witness saw the pilot reach for the fully open door with his right hand and heard a momentary reduction of engine power. He then saw the airplane descend momentarily before he heard an increase in engine power and saw the airplane level-off over the runway. He reported that the pilot continued to reach for the open cabin door as the airplane overflew the remaining runway about 35 ft above ground level. The witness then saw the airplane's left wing and nose drop suddenly, which he described as an aerodynamic stall. The airplane descended into terrain, and there was a large explosion upon impact. PERSONNEL INFORMATIONAccording to Federal Aviation Administration (FAA) records, the 44-year-old pilot held a private pilot certificate with ratings for airplane single-engine land, airplane single-engine sea, and instrument airp
Probable cause
The pilot's failure to maintain adequate airspeed after becoming distracted by the opening of the gull-wing cabin door during takeoff, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall at a low altitude. Contributing to the accident was the pilot's failure to ensure that the right gull-wing cabin door was properly latched before takeoff.
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Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
