| Tail Number / N-Number | N257MC |
| Manufacturer | DORNIER |
| Model | DORNIER 228-202 |
| Year Built | 1986 |
| Manufacturer's Serial Number | 8102 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 20 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AIRESEARCH |
| Engine Model | TPE331-5-252M |
| 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 | Corporation |
| Owner Name | BIGHORN AIRWAYS INC |
| Street | PO BOX 4037 |
| City | SHERIDAN |
| State | WY |
| Zip Code | 82801-1237 |
| Region | Northwest Mountain |
| County | Sheridan County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2001-06-19 |
| Certificate Issue Date | 1999-02-04 |
| Last Action Date | 2022-02-21 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 50471225 |
| Mode S Code Hex | A27295 |