| Tail Number / N-Number | N21SR |
| Manufacturer | ONEILL TERRENCE |
| Model | Z |
| Manufacturer's Serial Number | 1 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | ONEILL TERRENCE |
| Street | 791 LIVINGSTON ST |
| City | CARLYLE |
| State | IL |
| Zip Code | 62231 |
| Region | Great Lakes |
| County | Clinton County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 1987-07-21 |
| Last Action Date | 2020-05-13 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 50334311 |
| Mode S Code Hex | A1B8C9 |