| Tail Number / N-Number | N678TB |
| Manufacturer | SOCATA |
| Model | TB21 |
| Manufacturer's Serial Number | 1925 |
| 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 | Individual |
| Owner Name | HUNTER DENNIS F |
| Street | 6069 COUNTRY CLUB DR |
| City | ROHNERT PARK |
| State | CA |
| Zip Code | 94928-2234 |
| Region | Western-Pacific |
| County | Sonoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2000-06-13 |
| Certificate Issue Date | 2018-04-06 |
| Last Action Date | 2021-03-16 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 52175433 |
| Mode S Code Hex | A8FB1B |