| Crash location | Unknown |
| Nearest city | Oswego, IL
41.681418°N, 88.322570°W |
| Tail number | N50702 |
|---|---|
| Accident date | 20 Sep 1988 |
| Aircraft type | Bellanca 8KCAB |
| Additional details: | None |
INADEQUATE DESIGN INTHE MANUFACTURE OF THE PILOT'S SEAT WHICH FAILED DURING INTENTIONAL AEROBATIC MANEUVERS FOR WHICH THE AIRCRAFT INCLUDING THE SEAT WERE INTENDED.