| Tail Number / N-Number | N4591A |
| Manufacturer | PIPER |
| Model | PA-18A |
| Year Built | 1962 |
| Manufacturer's Serial Number | 18-4901 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-235 SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 115 hp (86 kW) |
| Average Cruising Speed | 97 miles per hour |
| Type of Registrant | Individual |
| Owner Name | COLLINS WILLIAM A |
| Street | PO BOX 4 |
| City | TILLAR |
| State | AR |
| Zip Code | 71670-0004 |
| Region | Southwestern |
| County | Drew County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1962-05-22 |
| Certificate Issue Date | 2021-11-04 |
| Last Action Date | 2021-11-04 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 51313007 |
| Mode S Code Hex | A59607 |