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ASN Wikibase Occurrence # 77960
Last updated: 16 March 2020
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Type:Silhouette image of generic C150 model; specific model in this crash may look slightly different
Cessna 150F
Owner/operator:Doug Hair
Registration: N7915F
C/n / msn: 15064015
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Substantial
Location:Monroe County near Sweetwater, Tennessee -   United States of America
Phase: En route
Departure airport:Marietta, GA (RYY)
Destination airport:Knoxville, TN (DKX)
Investigating agency: NTSB
The private pilot did not possess an instrument rating and had not logged any actual instrument experience. During the 2 days prior to the accident flight, the pilot had completed two cross-country flights uneventfully and he was returning home on the accident flight. The pilot did not contact the flight service station for a weather briefing. Visual meteorological conditions prevailed at the departure airport; however, instrument meteorological conditions were present along the route of flight and near the destination airport. About 1 hour into the cross-country flight, the airplane impacted hilly terrain about 1,300 feet mean sea level (msl). Radar data indicated that 1 minute prior to the accident, the airplane began a right turn, followed by a descending left turn, with the last recorded target at 1,600 feet msl about 1/4 mile from the accident site. One witness stated that it was foggy in the area at the time of the accident. The recorded weather at a nearby airport, located at 1,031 feet msl, included an overcast ceiling at 600 feet. Examination of the wreckage did not reveal any preimpact mechanical malfunctions. If neither horizon or surface references exist, the attitude of an airplane must be determined by artificial means from the flight instruments. However, during periods of low visibility, the supporting senses sometimes conflict with what is seen, and when this happens, a pilot is particularly vulnerable to spatial disorientation.
Probable Cause: The pilot's inadequate preflight weather planning and improper decision to continue a visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation and a loss of control.



Revision history:

27-Sep-2010 14:59 slowkid Added
28-Sep-2010 03:40 slowkid Updated [Aircraft type, Registration, Cn, Operator, Nature, Source]
29-Sep-2010 10:40 FLYINGBROTHER1 Updated [Damage]
21-Nov-2010 09:26 rvargast17 Updated [Aircraft type]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
26-Nov-2017 18:11 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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