NTSB Identification: SEA94LA156.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
Accident occurred Monday, June 27, 1994 in BEND, OR
Probable Cause Approval Date: 10/31/1995
Aircraft: BURKHART GROB G-109B, registration: N109KM
Injuries: 1 Fatal.

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

WITNESSES OBSERVED THE MOTORIZED GLIDER MAKING LOW-LEVEL STEEP TURNS AND PORPOISING-TYPE MANEUVERS OVER THE PILOT'S PROPERTY AND NEAR A FAMILY MEMBER'S HOUSE. THE LEFT WING AND NOSE THEN DROPPED, AND THE GLIDER IMPACTED THE GROUND. TOXICOLOGICAL TESTS WERE POSITIVE FOR TETRAHYDROCANNABINOL (MARIHUANA) (0.002 UG/ML BLOOD), THC CARBOXYLIC ACID (MARIHUANA) (0.012 UG/ML BLOOD, 0.158 UG/ML URINE), ALPRAZOLAM (0.035 UG/ML BLOOD), DIAZEPAM (0.207 UG/ML BLOOD), AND NORDIAZEPAM (0.305 UG/ML BLOOD).

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

THE PILOT'S IMPAIRMENT OF JUDGMENT AND PERFORMANCE DUE TO DRUGS, WHICH LED TO HIS FAILURE TO MAINTAIN CONTROL OF THE AIRCRAFT.

Full narrative available

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