NTSB Identification: SEA96LA081.
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Accident occurred Wednesday, April 17, 1996 in ROCK SPRINGS, WY
Probable Cause Approval Date: 07/25/1996
Aircraft: FORTH ACRO 2, registration: N565HF
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The pilot performed a precautionary landing on a highway because of an oil pressure problem. After a mechanic corrected the problem, the pilot made a takeoff from the highway with gusting crosswinds. During the takeoff the airplane veered into a hillside along the side of the road. The pilot told the FAA inspector that he did not realize the winds were that strong prior to the takeoff, and the airplane 'encountered wind shear resulting in loss of positive directional control.' The reported wind conditions near the accident site about the time of the accident were: wind direction from 270 degrees magnetic at 20 knots, gusting to 26 knots.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

the pilot's improper decision to attempt a takeoff from a road with gusting crosswinds, and his failure to adequately compensate for wind conditions during the takeoff. Factors contributing to the accident were gusts, crosswinds, and windshear.

Full narrative available

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