| Tail Number / N-Number | N9521X |
| Manufacturer | CESSNA |
| Model | 210A |
| Year Built | 1961 |
| Manufacturer's Serial Number | 21057821 |
| 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 | GROSE TIMOTHY J |
| Street | 61 COLUMBIA CT |
| City | PAGOSA SPRINGS |
| State | CO |
| Zip Code | 81147-7811 |
| Region | Northwest Mountain |
| County | Archuleta County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1961-06-29 |
| Certificate Issue Date | 2019-01-02 |
| Last Action Date | 2021-12-16 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 53237246 |
| Mode S Code Hex | AD3EA6 |