| Tail Number / N-Number | N539P |
| Manufacturer | PAULSEN FREDRIC N |
| Model | PAULSEN GS1 |
| Year Built | 1999 |
| Manufacturer's Serial Number | 5039 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Not 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 | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | ROSVOLD ERIC O |
| Street | PO BOX 1144 |
| City | PETERSBURG |
| State | AK |
| Zip Code | 99833-1144 |
| Region | Alaskan |
| County | Wrangell-Petersburg |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1999-03-03 |
| Certificate Issue Date | 2011-01-31 |
| Last Action Date | 2022-08-24 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 51551441 |
| Mode S Code Hex | A6D321 |