| Tail Number / N-Number | N50831 |
| Manufacturer | QUICKSILVER |
| Model | SPORT II |
| Manufacturer's Serial Number | 420 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 582DCDI |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Type of Registrant | Individual |
| Owner Name | GRAF DAVID R |
| Street | 1303 GENEVA AVE N |
| City | OAKDALE |
| State | MN |
| Zip Code | 55128-5705 |
| Region | Great Lakes |
| County | Ramsey County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2010-01-20 |
| Certificate Issue Date | 2018-06-27 |
| Last Action Date | 2021-03-21 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 51455203 |
| Mode S Code Hex | A65A83 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N50831.
| Tail Number / N-Number | N50831 |
| Manufacturer | CESSNA |
| Model | 150J |
| Manufacturer's Serial Number | 15069583 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 |
| Average Cruising Speed | 90 miles per hour |
| County | Ramsey County |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1989-04-05 |