| Crash location | Unknown |
| Nearest city | Grand Canyon, AZ
36.054427°N, 112.139336°W |
| Tail number | N6280H |
|---|---|
| Accident date | 13 May 1991 |
| Aircraft type | Cessna 207A |
| Additional details: | None |
DETONATION (OR PRE-IGNITION) IN THE NUMBER 1 CYLINDER, WHICH RESULTED IN EROSION (BURNING) OF THE NUMBER 1 PISTON AND SUBSEQUENT LOSS OF ENGINE POWER. A FACTOR RELATED TO THE ACCIDENT WAS: THE LACK OF SUITABLE TERRAIN FOR AN EMERGENCY LANDING.