| Tail Number / N-Number | N773SD |
| Manufacturer | BEECH |
| Model | C90A |
| Year Built | 1995 |
| Manufacturer's Serial Number | LJ1413 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 9 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | PT6A SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 750 hp (560 kW) |
| Total Horsepower | 1,500 hp (1,119 kW) |
| Type of Registrant | Government |
| Owner Name | SOUTH DAKOTA DEPARTMENT OF TRANSPORTATION |
| Street | 700 E BROADWAY AVE |
| City | PIERRE |
| State | SD |
| Zip Code | 57501-2586 |
| Region | Great Lakes |
| County | Hughes County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1995-09-28 |
| Certificate Issue Date | 2005-04-19 |
| Last Action Date | 2022-08-24 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 52472700 |
| Mode S Code Hex | AA75C0 |