| Tail Number / N-Number | N721S |
| Manufacturer | AEROPRO CZ S R O |
| Model | A240 |
| Year Built | 2021 |
| Manufacturer's Serial Number | 61121 |
| 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 | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | Individual |
| Owner Name | HATFIELD MARK |
| Street | 650 OAK ST |
| City | ROSELLE |
| State | IL |
| Zip Code | 60172-3804 |
| Region | Great Lakes |
| County | DuPage County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Light Sport |
| Airworthiness Date | 2021-04-16 |
| Certificate Issue Date | 2021-08-06 |
| Last Action Date | 2021-08-06 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 52324323 |
| Mode S Code Hex | A9A8D3 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N721S.
| Tail Number / N-Number | N721S |
| Manufacturer | DEHAVILLAND |
| Model | DHC-7-102 |
| Manufacturer's Serial Number | 28 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 59 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Type of Registrant | Corporation |
| Owner Name | AIR WISCONSIN INC |
| Street | OUTAGAMIE COUNTRY AIRPORT |
| City | APPLETON |
| State | WI |
| Zip Code | 54911 |
| Region | Great Lakes |
| County | DuPage County |
| Country | US |
| Certificate Issue Date | 1980-08-20 |
| Last Status | Valid Registration |
| Cancellation Date | 1985-10-01 |
| Exported To | NORWAY |