| Crash location | Unknown |
| Nearest city | Truckee, CA
39.327962°N, 120.183253°W |
| Tail number | N2423W |
|---|---|
| Accident date | 04 Jun 1990 |
| Aircraft type | Schweizer Sgs 1-26B |
| Additional details: | None |
THE PILOT'S IMPROPER DECISION TO RELEASE FROM THE TOW AIRPLANE AT AN INSUFFICIENT ALTITUDE ON THE LEE SIDE OF THE MOUNTAINS.