| Tail Number / N-Number | N521BW |
| Manufacturer | CESSNA |
| Model | 210L |
| Year Built | 1974 |
| Manufacturer's Serial Number | 21060297 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 87 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BILMAR AVIONICS INC |
| Street | 4005 4TH ST |
| City | KISSIMMEE |
| State | FL |
| Zip Code | 34741-4509 |
| Region | Southern |
| County | Osceola County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-04-22 |
| Certificate Issue Date | 2014-08-04 |
| Last Action Date | 2023-01-11 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51506323 |
| Mode S Code Hex | A68CD3 |