| Crash location | Unknown |
| Nearest city | Riverside, CA
40.863741°N, 123.970614°W |
| Tail number | N9466T |
|---|---|
| Accident date | 06 Oct 1990 |
| Aircraft type | Cessna 210 |
| Additional details: | None |
IMPAIRMENT OF THE PILOT FROM USE OF DRUGS (COCAINE), AND HIS FAILURE TO MAINTAIN CLEARANCE (OR ALTITUDE) FROM THE MOUNTAIN. FACTORS RELATED TO THE ACCIDENT WERE: DARKNESS AND THE PILOT'S PSYCHOLOGICAL CONDTION (DEPRESSION).