| Tail Number / N-Number | N9DX |
| Manufacturer | REYNOLDS HAROLD L |
| Model | SONEX |
| Manufacturer's Serial Number | 0999 |
| 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) |
| Number of Engines | 1 engine |
| Kit Manufacturer | SONEX AIRCRAFT LLC |
| Kit Model | SONEX |
| Type of Registrant | Individual |
| Owner Name | ALLEN WILIAM S |
| Street | 9806 SHEPLET CT |
| City | LOUISVILLE |
| State | KY |
| Zip Code | 40241-2129 |
| Region | Central |
| County | Jefferson County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2020-01-30 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-01-31 |
| Status | Valid Registration |
| Mode S Code | 53065333 |
| Mode S Code Hex | AC6ADB |