| Tail Number / N-Number | N57491 |
| Manufacturer | BELL HELICOPTER TEXTRON |
| Model | 206L-1 |
| Year Built | 1980 |
| Manufacturer's Serial Number | 45505 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ALLISON |
| Engine Model | 250 SER 250HP |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 250 hp (187 kW) |
| Type of Registrant | Corporation |
| Owner Name | MONARCH ENTERPRISES INC |
| Street | 12515 WILLOWS RD NE STE 200 |
| City | KIRKLAND |
| State | WA |
| Zip Code | 98034 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1980-09-09 |
| Certificate Issue Date | 1992-04-20 |
| Last Action Date | 2022-10-18 |
| Expiration Date | 2030-03-31 |
| Status | Valid Registration |
| Mode S Code | 51660362 |
| Mode S Code Hex | A760F2 |