| Tail Number / N-Number | N624SG |
| Manufacturer | TIMOTHY JOHN DONHAM |
| Model | DONHAM GN1 |
| Year Built | 2015 |
| Manufacturer's Serial Number | 1 |
| 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 | CONT MOTOR |
| Engine Model | O-200A |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | Individual |
| Owner Name | HECKERMAN TED A |
| Street | 1696 LAKE RIDGE BLVD |
| City | CANYON LAKE |
| State | TX |
| Zip Code | 78133-3259 |
| Region | Southwestern |
| County | Comal County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2015-08-03 |
| Certificate Issue Date | 2021-02-01 |
| Last Action Date | 2021-02-01 |
| Expiration Date | 2028-02-29 |
| Status | Valid Registration |
| Mode S Code | 52023260 |
| Mode S Code Hex | A826B0 |