NTSB Identification: LAX87LA109.
The docket is stored on NTSB microfiche number 32191.
Accident occurred Saturday, February 07, 1987 in VACAVILLE, CA
Probable Cause Approval Date: 03/21/1988
Aircraft: SCHWEIZER 2-32, registration: N17871
Injuries: 3 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
DURING A LOCAL SIGHTSEEING FLIGHT, THE PILOT WAS FLYING SOUTH APPROXIMATELY 300-500 FT ABOVE THE RIDGE LOOKING FOR LIFT. THE PILOT COULD NOT FIND SUFFICIENT LIFT IN THE AREA EAST OF THE RIDGE SO HE FLEW TO THE WEST SIDE WHERE THE GLIDER ENCOUNTERED A STRONG DOWN DRAFT. DUE TO THE LOSS OF ALTITUDE, THE PILOT WAS UNABLE TO RETURN TO THE AIRPORT. A FORCED LANDING WAS MADE ON A ROAD THAT WAS LINED WITH GRAPEVINES. THE FUSELAGE REMAINED CENTERED ON THE ROAD, HOWEVER, THE WINGS COLLIDED WITH THE LINING GRAPEVINES.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:WEATHER CONDITION..DOWNDRAFT
WIND INFORMATION..NOT OBTAINED..PILOT IN COMMAND
PREFLIGHT PLANNING/PREPARATION..POOR..PILOT IN COMMAND
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