| Tail Number / N-Number | N521ST |
| Manufacturer | CESSNA |
| Model | 305C (0-1E) |
| Manufacturer's Serial Number | 24584 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 | O-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 230 hp (172 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MUSICK AIRCRAFT CORP |
| Street | 422 AIRPORT RD |
| City | GREENWOOD |
| State | MS |
| Zip Code | 38930 |
| Region | Southwestern |
| County | Leflore County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1990-06-28 |
| Certificate Issue Date | 2018-09-26 |
| Last Action Date | 2021-04-12 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 51507107 |
| Mode S Code Hex | A68E47 |