| Crash location | Unknown |
| Nearest city | Diamond Lake, OR
43.178738°N, 122.138920°W |
| Tail number | N3581Y |
|---|---|
| Accident date | 29 Sep 1989 |
| Aircraft type | Cessna 182F |
| Additional details: | None |
IMPROPER INFLIGHT PLANNING AND DECISION BY THE PILOT IN COMMAND WHO CONTINUED VFR FLIGHT INTO IMC CONDITIONS WHILE ATTEMPTING TO FLY THROUGH A MOUNTAIN PASS. CONTRIBUTING FACTORS WERE THE LOW CEILING AND RAIN WEATHER CONDITIONS AND THE MOUNTAINOUS, HILLY TERRAIN IN THE PASS.