| Tail Number / N-Number | N151DK |
| Manufacturer | DANNY L MARCY |
| Model | ONEX |
| Year Built | 2019 |
| Manufacturer's Serial Number | ONX0151 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| 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 AIRCRAFT LLC |
| Kit Model | ONEX |
| Type of Registrant | Individual |
| Owner Name | MARCY DANNY L |
| Street | 479 IRAS LN |
| City | SUNRISE BEACH |
| State | MO |
| Zip Code | 65079-7744 |
| Region | Central |
| County | Camden County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2019-11-20 |
| Certificate Issue Date | 2019-01-23 |
| Last Action Date | 2021-09-28 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 50147073 |
| Mode S Code Hex | A0CE3B |