| Tail Number / N-Number | N6431M |
| Manufacturer | STINSON |
| Model | 108-3 |
| Year Built | 1948 |
| Manufacturer's Serial Number | 108-4431 |
| 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 | FRANKLIN |
| Engine Model | 6A4165 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 165 hp (123 kW) |
| Average Cruising Speed | 94 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KOPRIVNIK ANTON J |
| Street | 200 HICKORY HILL RD |
| City | PAINESVILLE |
| State | OH |
| Zip Code | 44077-5140 |
| Region | Great Lakes |
| County | Lake County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 2015-01-26 |
| Last Action Date | 2020-10-07 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 52071347 |
| Mode S Code Hex | A872E7 |