| Tail Number / N-Number | N4491A |
| Manufacturer | PIPER |
| Model | PA-18A 150 |
| Manufacturer's Serial Number | 18-4860 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 97 miles per hour |
| Type of Registrant | Individual |
| Owner Name | NATWICK JOEL L |
| Street | PO BOX 232 |
| City | PORT ALSWORTH |
| State | AK |
| Zip Code | 99653-0232 |
| Region | Alaskan |
| County | Dillingham Census Area |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2020-04-16 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-04-30 |
| Status | Valid Registration |
| Mode S Code | 51267210 |
| Mode S Code Hex | A56E88 |