| Crash location | Unknown |
| Nearest city | Pontiac, MI
42.638922°N, 83.291047°W |
| Tail number | N889HC |
|---|---|
| Accident date | 25 May 1988 |
| Aircraft type | Chappel Ratsrepus 300 |
| Additional details: | None |
DESTRUCTIVE WING/AILERON FLUTTER IS SUSPECTED, BUT NOT SUFFICIENTLY SUBSTANTIATED THROUGH RESEARCH AND CALCULATIONS TO BE CITED AS THE PROBABLE CAUSE OF THIS ACCIDENT.