| Tail Number / N-Number | N249SX |
| Manufacturer | COWAN DAVID W |
| Model | SONEX |
| Year Built | 2005 |
| Manufacturer's Serial Number | 0249 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Kit Manufacturer | SONEX LTD |
| Kit Model | SONEX |
| Type of Registrant | Individual |
| Owner Name | LEONARD PAUL |
| Street | 91-1041 WAIKAPUNA ST |
| City | EWA BEACH |
| State | HI |
| Zip Code | 96706-6430 |
| Region | Western-Pacific |
| County | Honolulu County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2005-05-31 |
| Certificate Issue Date | 2020-11-18 |
| Last Action Date | 2020-11-18 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50451424 |
| Mode S Code Hex | A25314 |