| Tail Number / N-Number | N20NC |
| Manufacturer | SOCATA |
| Model | TB21 |
| Manufacturer's Serial Number | 559 |
| 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 | LYCOMING |
| Engine Model | TI0-540 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 310 hp (231 kW) |
| Type of Registrant | LLC |
| Owner Name | JOHNSON PROFESSIONAL AVIATION LLC |
| Street | 2369 INDIGO HARBOUR LN |
| City | LEAGUE CITY |
| State | TX |
| Zip Code | 77573-0742 |
| Region | Southwestern |
| County | Galveston County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1986-05-14 |
| Certificate Issue Date | 2018-11-26 |
| Last Action Date | 2021-06-11 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 50310331 |
| Mode S Code Hex | A190D9 |