| Tail Number / N-Number | N291SX |
| Manufacturer | ERVIN GEIGER JR |
| Model | SONEX |
| Year Built | 2015 |
| Manufacturer's Serial Number | 1558 |
| 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 AIRCRAFT LLC |
| Kit Model | SONEX |
| Type of Registrant | Individual |
| Owner Name | GEIGER ERVIN JR |
| Street | 627 S REDSTONE CT |
| City | COLUMBIA CITY |
| State | IN |
| Zip Code | 46725-8484 |
| Region | Great Lakes |
| County | Whitley County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2015-12-03 |
| Certificate Issue Date | 2014-08-11 |
| Last Action Date | 2020-03-11 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 50575327 |
| Mode S Code Hex | A2FAD7 |