| Tail Number / N-Number | N6521X |
| Manufacturer | CESSNA |
| Model | 210 |
| Year Built | 1960 |
| Manufacturer's Serial Number | 57521 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | I0-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | Individual |
| Owner Name | NELSON SCOTT W |
| Street | 10363 WILMINGTON DR |
| City | SUMMERSET |
| State | SD |
| Zip Code | 57718 |
| Region | Great Lakes |
| County | Meade County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1960-07-13 |
| Certificate Issue Date | 2016-09-06 |
| Last Action Date | 2022-06-17 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 52113271 |
| Mode S Code Hex | A896B9 |