| Tail Number / N-Number | N721RB |
| Manufacturer | AERO AT SP ZOO |
| Model | AT-4 LSA |
| Year Built | 2009 |
| Manufacturer's Serial Number | AT4-021 |
| 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 | Co-Ownership |
| Owner Name | MAYFIELD JAMES P III |
| Other Names |
|
| Street | 10556 W AVALON DR |
| City | AVONDALE |
| State | AZ |
| Zip Code | 85392-4504 |
| Region | Western-Pacific |
| County | Pinal County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2022-05-02 |
| Certificate Issue Date | 2022-02-19 |
| Last Action Date | 2022-02-19 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 52324274 |
| Mode S Code Hex | A9A8BC |