| Tail Number / N-Number | N591A |
| Manufacturer | CASSUT RACER |
| Model | GBM2 |
| Year Built | 1969 |
| Manufacturer's Serial Number | RG-5 |
| 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 | CONT MOTOR |
| Engine Model | 0-200 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Average Cruising Speed | 142 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BUEHLER ANDREW C |
| Street | PO BOX 1174 |
| City | OLALLA |
| State | WA |
| Zip Code | 98359-1174 |
| Region | Northwest Mountain |
| County | Kitsap County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1977-11-08 |
| Certificate Issue Date | 2018-08-28 |
| Last Action Date | 2021-03-16 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 51720436 |
| Mode S Code Hex | A7A11E |