| Tail Number / N-Number | N528MR |
| Manufacturer | MARSH WILLIAM J |
| Model | COZY MK IV |
| Manufacturer's Serial Number | 1107 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 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 | MARSH WILLIAM J |
| Street | 4709 JULLIARD DR |
| City | COLORADO SPRINGS |
| State | CO |
| Zip Code | 80918-7990 |
| Region | Northwest Mountain |
| County | El Paso County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2019-12-18 |
| Last Action Date | 2022-09-13 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 51523711 |
| Mode S Code Hex | A6A7C9 |