| Tail Number / N-Number | N129GR |
| Manufacturer | MARLON O GUNDERSON/GARY L RIED |
| Model | COZY MK316 |
| Year Built | 2017 |
| Manufacturer's Serial Number | GR01 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O-320-E2D |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Type of Registrant | Individual |
| Owner Name | GUNDERSON MARLON O |
| Street | 2986 LAKE ELMO AVE N |
| City | LAKE ELMO |
| State | MN |
| Zip Code | 55042-8411 |
| Region | Great Lakes |
| County | Washington County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2017-04-29 |
| Certificate Issue Date | 2013-06-04 |
| Last Action Date | 2022-01-20 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 50072707 |
| Mode S Code Hex | A075C7 |