| Tail Number / N-Number | N237SL |
| Manufacturer | BEECH |
| Model | C-99 |
| Year Built | 1987 |
| Manufacturer's Serial Number | U237 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 17 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 | Corporation |
| Owner Name | ALPINE AVIATION INC |
| Street | 1177 ALPINE AIR WAY |
| City | PROVO |
| State | UT |
| Zip Code | 84601-8270 |
| Region | Northwest Mountain |
| County | Utah County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2000-11-16 |
| Certificate Issue Date | 2004-04-08 |
| Last Action Date | 2022-09-20 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 50422034 |
| Mode S Code Hex | A2241C |