| Tail Number / N-Number | N679KS |
| Manufacturer | MARSHALL KEITH K |
| Model | RANS S-21 |
| Year Built | 2020 |
| Manufacturer's Serial Number | 06180008 |
| 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 | TITAN |
| Engine Model | IOX-340 SERIE |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Kit Manufacturer | RANS DESIGNS INC |
| Kit Model | S-21 OUTBOUND |
| Type of Registrant | Individual |
| Owner Name | MARSHALL KEITH K |
| Street | 6951 COUNTY ROAD 350 |
| City | BLANKET |
| State | TX |
| Zip Code | 76432-6403 |
| Region | Southwestern |
| County | Brown County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2021-01-09 |
| Certificate Issue Date | 2020-11-19 |
| Last Action Date | 2020-11-19 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 52177031 |
| Mode S Code Hex | A8FE19 |