NTSB Identification: SEA92LA151.
The docket is stored on NTSB microfiche number 46930.
Accident occurred Sunday, July 12, 1992 in EPHRATA, WA
Probable Cause Approval Date: 03/09/1993
Aircraft: BERKSHIRE MFG. CONCEPT 70, registration: N382W
Injuries: 1 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 FLIGHT, SHORTLY AFTER DISCONNECT FROM THE TOW PLANE, THE PILOT REALIZED THAT THERE WAS INSUFFICIENT THERMAL LIFT IN THE AREA. THE FLIGHT WAS RETURNING TO THE AIRPORT WHEN THE PILOT REALIZED THAT HE WAS TOO FAR OUT AND TOO LOW TO MAKE IT TO THE AIRPORT. THE PILOT THEN INITIATED A FORCED LANDING TO AN OPEN FIELD. DURING THE LANDING ROLL, THE GLIDER COLLIDED WITH THE TERRAIN.

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

INADEQUATE IN-FLIGHT PLANNING/DECISION. FACTORS TO THE ACCIDENT WERE: NO THERMAL LIFT AND ROUGH/UNEVEN TERRAIN.

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