| Crash location | Unknown |
| Nearest city | Laurel, MT
45.669116°N, 108.771533°W |
| Tail number | N9926D |
|---|---|
| Accident date | 21 Jun 1990 |
| Aircraft type | Piper PA-18 |
| Additional details: | None |
THE PILOT'S FAILURE TO MAINTAIN PROPER CLEARANCE FROM OTHER OBJECTS WWHILE MANEUVERING.