| Tail Number / N-Number | N204PK |
| Manufacturer | QUAD CITY ULTRALIGHT ACFT CORP |
| Model | CHALLENGER II |
| Year Built | 1996 |
| Manufacturer's Serial Number | CH2-0398-1724 |
| 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 | 503 DCDI |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 52 hp (39 kW) |
| Type of Registrant | Individual |
| Owner Name | NILL ROBERT M |
| Street | 18856 CRNS 238 |
| City | GRANDFIELD |
| State | OK |
| Zip Code | 73546 |
| Region | Southwestern |
| County | Tillman County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2007-12-17 |
| Certificate Issue Date | 2014-02-12 |
| Last Action Date | 2022-09-22 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 50321056 |
| Mode S Code Hex | A1A22E |