| Crash location | Unknown |
| Nearest city | Braceville, IL
41.245310°N, 88.276451°W |
| Tail number | N9522F |
|---|---|
| Accident date | 02 Aug 1988 |
| Aircraft type | Mcdonnell Douglas 269B |
| Additional details: | None |
CONDUCTING MANEUVERING FLIGHT THE PIC FAILED TO MONITOR THE HELICOPTER SYSTEMS AND ALLOWED THE MAIN ROTOR RPM TO DECAY TO THE POINT WHERE IT WOULD NOT PRODUCE ENOUGH LIFT TO SUSTAIN FLIGHT.