| Tail Number / N-Number | N520MM |
| Manufacturer | MITTRY MARC OSCAR |
| Model | RV-4 |
| Manufacturer's Serial Number | 1080 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | MITTRY MARC OSCAR |
| Street | 39677 SALINAS DR |
| City | MURRIETA |
| State | CA |
| Zip Code | 92563-6824 |
| Region | Western-Pacific |
| County | Riverside County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 1988-03-04 |
| Last Action Date | 2022-05-16 |
| Expiration Date | 2029-10-31 |
| Status | Valid Registration |
| Mode S Code | 51505015 |
| Mode S Code Hex | A68A0D |