| Tail Number / N-Number | N580TT |
| Manufacturer | SEMANSKEE GRANT W |
| Model | GLASAIR III |
| Manufacturer's Serial Number | 3267 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | SEMANSKEE GRANT W |
| Street | 12529 67TH DR SE |
| City | SNOHOMISH |
| State | WA |
| Zip Code | 98296-8670 |
| Region | Northwest Mountain |
| County | Snohomish County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2005-12-16 |
| Last Action Date | 2022-02-03 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 51673643 |
| Mode S Code Hex | A777A3 |