| Crash location | Unknown |
| Nearest city | Turlock, CA
37.494657°N, 120.846594°W |
| Tail number | N8241 |
|---|---|
| Accident date | 15 Aug 1991 |
| Aircraft type | BENSON/AMBROCINI/WENTZEL B-8MJ |
| Additional details: | None |
THE PILOT'S OVER ROTATION OF THE GYROCOPTER DURING THE TAKEOFF SEQUENCE WHICH RESULTED IN A LOSS OF CONTROL. CONTRIBUTING TO THE ACCIDENT WAS THE POOR MAINTENANCE PRACTICES PERFORMED ON THE MACHINE.