| Tail Number / N-Number | N399BR |
| Manufacturer | RIGGS ROBERT L |
| Model | COZY III |
| Year Built | 2000 |
| Manufacturer's Serial Number | 101 |
| 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 | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | HERZIG RODNEY A |
| Street | 9 PINEWOOD CIR |
| City | TURNERS FALLS |
| State | MA |
| Zip Code | 01376-1800 |
| Region | New England |
| County | Franklin County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2005-12-28 |
| Certificate Issue Date | 2006-04-27 |
| Last Action Date | 2022-08-09 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 51122141 |
| Mode S Code Hex | A4A461 |