| Tail Number / N-Number | N581TF |
| Manufacturer | BILLS WALTER B |
| Model | BILLS SPECIAL |
| Year Built | 1995 |
| 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) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | FROST TIMOTHY W |
| Street | PO BOX 221705 |
| City | EL PASO |
| State | TX |
| Zip Code | 79913-4705 |
| Region | Southwestern |
| County | El Paso County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1995-11-01 |
| Certificate Issue Date | 2019-07-23 |
| Last Action Date | 2022-03-02 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 51675516 |
| Mode S Code Hex | A77B4E |