| Tail Number / N-Number | N991BH |
| Manufacturer | DEHAVILLAND |
| Model | DHC-8-106 |
| Year Built | 1992 |
| Manufacturer's Serial Number | 324 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 44 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PW121 |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 1,950 hp (1,455 kW) |
| Total Horsepower | 3,900 hp (2,909 kW) |
| Type of Registrant | Corporation |
| Owner Name | BIG HORN AIRWAYS INC |
| Street | 912 W BRUNDAGE LN |
| City | SHERIDAN |
| State | WY |
| Zip Code | 82801-5827 |
| Region | Northwest Mountain |
| County | Sheridan County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2021-09-21 |
| Certificate Issue Date | 2021-09-02 |
| Last Action Date | 2021-09-09 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 53353173 |
| Mode S Code Hex | ADD67B |