ASN Wikibase Occurrence # 172272
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| Date: | Sunday 14 December 2014 |
| Time: | 12:43 |
| Type: | Titan Tornado II |
| Owner/operator: | Private |
| Registration: | N50402 |
| MSN: | D96618COHK0196 |
| Year of manufacture: | 1995 |
| Total airframe hrs: | 817 hours |
| Engine model: | Jabiru 2200A |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Walnut Hill Airport (58VA), east of Calverton, VA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Warrenton, VA (HWY) |
| Warrenton, VA (HWY) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The sport pilot departed on a local flight, his third flight in the accident airplane. Review of radar data indicated that the flight maneuvered in the local area for about 13 minutes before the accident occurred. One witness stated that the airplane was flying level about 150 feet above ground level when the engine began to sound like it was “missing.” He then stated that the airplane then began a series of three 360-degree, level right-hand turns while over a wooded area. Upon completion of the third turn, the engine noise stopped, and the airplane descended vertically into the trees below. Examination of the accident site indicated a relatively short debris path, consistent with a steep descent. The witness observations and the impact geometry are consistent with the pilot’s failure to maintain adequate airspeed while maneuvering, resulting in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall.
The engine was successfully operated after the accident at power settings ranging from idle to full power. While the weather conditions around the time of the accident were conducive to the formation of carburetor icing at glide engine power settings, the airplane was maneuvering in level flight before the accident so the throttle was likely set above a glide power setting. Examination of the engine and fuel system revealed no evidence of pre-impact failure or malfunction; however, no definitive determination could be made regarding the engine’s operational state at the time of impact.
Probable Cause: The pilot’s failure to maintain airspeed while maneuvering at a low altitude, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=50402
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Dec-2014 07:35 | Geno | Added |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 30-Nov-2017 19:43 | ASN Update Bot | Updated [Cn, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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