| Tail Number / N-Number | N639ST |
| Manufacturer | NEW PIPER AIRCRAFT INC |
| Model | PA-28-181 |
| Year Built | 2006 |
| Manufacturer's Serial Number | 2843639 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O-360-A4M |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | LLC |
| Owner Name | HOOSIER AVIATION LLC |
| Street | 581 S AIRPORT ST |
| City | TERRE HAUTE |
| State | IN |
| Zip Code | 47803-9705 |
| Region | Great Lakes |
| County | Vigo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2006-07-18 |
| Certificate Issue Date | 2021-11-29 |
| Last Action Date | 2021-11-29 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 52060315 |
| Mode S Code Hex | A860CD |