| Crash location | Unknown |
| Nearest city | Thornton, MS
33.079294°N, 90.322588°W |
| Tail number | N4017B |
|---|---|
| Accident date | 26 Sep 1990 |
| Aircraft type | Ayres S2R-T34 |
| Additional details: | None |
THE IMPROPER DRILLING OF A HOLE IN THE SPAR CAP BY A MECHANIC RESULTING IN THE INITIATION OF FATIGUE CRACKING IN THE SPAR CAP AND SUBSEQUENT FAILURE OF THE SPAR CAP AND INFLIGHT SEPARATION OF THE WING.