| Tail Number / N-Number | N251ES |
| Manufacturer | ROCKWELL INTERNATIONAL |
| Model | 690A |
| Year Built | 1975 |
| Manufacturer's Serial Number | 11251 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AIRESEARCH |
| Engine Model | TPE331 SERIES |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 904 hp (674 kW) |
| Total Horsepower | 1,808 hp (1,349 kW) |
| Average Cruising Speed | 192 miles per hour |
| Type of Registrant | LLC |
| Owner Name | ESI AVIATION LLC |
| Street | 1250 ROBERTS BLVD NW |
| City | KENNESAW |
| State | GA |
| Zip Code | 30144-3620 |
| Region | Southern |
| County | Cobb County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1975-04-07 |
| Certificate Issue Date | 2009-06-17 |
| Last Action Date | 2020-08-21 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 50455652 |
| Mode S Code Hex | A25BAA |