| Tail Number / N-Number | N256SM |
| Manufacturer | MCCARTNEY STEVEN R |
| Model | RV-6 |
| Year Built | 2020 |
| Manufacturer's Serial Number | 23589 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O-360-A1A |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Kit Manufacturer | VANS AIRCRAFT INC |
| Kit Model | RV-6 |
| Type of Registrant | Individual |
| Owner Name | MCCARTNEY STEVEN R |
| Street | 97 ALTAMONT WAY |
| City | CAMARILLO |
| State | CA |
| Zip Code | 93010-1102 |
| Region | Western-Pacific |
| County | Ventura County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2020-07-16 |
| Certificate Issue Date | 2020-06-02 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-06-30 |
| Status | Valid Registration |
| Mode S Code | 50467544 |
| Mode S Code Hex | A26F64 |