| Tail Number / N-Number | N21NP |
| Manufacturer | BEECH |
| Model | 58TC |
| Year Built | 1978 |
| Manufacturer's Serial Number | TK-77 |
| Aircraft Type | Fixed wing multi 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 | TSIO-520 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 123 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BOSTIC CURTIS E |
| Street | 980 CRESTWOOD DR |
| City | PRESTONSBURG |
| State | KY |
| Zip Code | 41653-8040 |
| Region | Central |
| County | Floyd County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-06-08 |
| Certificate Issue Date | 2017-05-11 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 50334143 |
| Mode S Code Hex | A1B863 |