Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N3990W.
| Tail Number / N-Number | N3990W |
| Manufacturer | WIESER ERNEST |
| Model | BENSEN B80 |
| Year Built | 1983 |
| Manufacturer's Serial Number | EJW-1-B80 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | MCCULLOCH |
| Engine Model | 4318A&E/0-100 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 72 hp (54 kW) |
| Type of Registrant | Individual |
| Owner Name | WIESER ERNEST |
| Street | BOX 50D MOORE RD |
| City | WASHINGTON |
| State | PA |
| Zip Code | 15301 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1983-08-17 |
| Certificate Issue Date | 1983-09-27 |
| Last Action Date | 1997-10-06 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-07-09 |
| Mode S Code | 51123245 |
| Mode S Code Hex | A4A6A5 |