| Tail Number / N-Number | N6421 |
| Manufacturer | GARY JOHNSON |
| Model | GT500 |
| Year Built | 2015 |
| Manufacturer's Serial Number | 460 |
| 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 | ROTAX |
| Engine Model | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Kit Manufacturer | QUICKSILVER AERONAUTICS LLC |
| Kit Model | GT 500 |
| Type of Registrant | Individual |
| Owner Name | WOLLERT SHANE |
| Street | PO BOX 132 |
| City | WILEY |
| State | CO |
| Zip Code | 81092-0132 |
| Region | Northwest Mountain |
| County | Prowers County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2015-05-06 |
| Certificate Issue Date | 2022-04-02 |
| Last Action Date | 2022-04-02 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 52067444 |
| Mode S Code Hex | A86F24 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N6421.
| Tail Number / N-Number | N6421 |
| Manufacturer | BENSEN B-8M |
| Model | GYROCOPTER |
| Manufacturer's Serial Number | 1 |
| Aircraft Type | Rotorcraft |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | STEWART EARL F |
| Street | XXXXXXXXXX |
| City | NEWPORT |
| State | NE |
| Zip Code | 68759 |
| Region | Central |
| County | Prowers County |
| Certificate Issue Date | 1979-10-23 |
| Last Status | Valid Registration |
| Cancellation Date | 1982-11-13 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N6421.
| Tail Number / N-Number | N6421 |
| Manufacturer | TRAVEL AIR MFG CO |
| Model | 2000 |
| Manufacturer's Serial Number | 762 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 79 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BRALEY SCHOOL OF FLYING INC |
| Street | 6400 EAST FRANKLIN ROAD |
| City | WICHITA |
| State | KS |
| Zip Code | 67202 |
| Region | Central |
| County | Prowers County |
| Certificate Issue Date | 1928-09-24 |
| Last Status | Valid Registration |
| Cancellation Date | 1930-01-31 |