N-Number: N4439U
Information Updated 01/06/2026
Aircraft Description
| N-Number | N4439U | ||
| Serial Number | 12890 | Status | Valid |
| Manufacturer Name | ROBINSON HELICOPTER COMPANY | Certificate Issue Date | 12/04/2014 |
| Model | R44 II | Expiration Date | 12/31/2023 |
| Type Aircraft | Rotorcraft | Type Engine | Reciprocating |
| Pending Number Change | Dealer | ||
| Date Change Authorized | Mode S Code (base 8 / octal) | 51254550 | |
| MFR Year | 2009 | Mode S Code (base 16 / hex) | A55968 |
| Type Registration | Individual | Fractional Owner | No |
Registered Owner
| Name | LEE ROBERT A | ||
| Street | 5900 STATE ROAD 175 | ||
| City | HARTFORD | State | WI |
| County | WASHINGTON COUNTY | Zip Code | 53027-9446 |
| Country | US | ||
Airworthiness
| Engine Manufacturer | LYCOMING | A/W Date | 08/28/2009 |
| Engine Model | IO-540-AE1A5 | Classification | Standard |
| Category | Normal | ||
Other Owner Names
| None |
NTSB Records
| None |
Deregistered Aircraft
| Deregistered Aircraft 1 of 2 | |||
| Aircraft Description | |||
| Serial Number | RWP001 | Certificate Issue Date | // |
| Manufacturer Name | PORTER REVE W | Mode S Code (base 8 / oct) | 51254550 |
| Model | DRIFTER | Mode S Code (base 16 / hex) | A55968 |
| Year Manufacturer | Cancel Date | ||
| Reason for Cancellation | Export To | ||
| Type Registration | Unknown | ||
| Aircraft Registration prior to Deregistration | |||
| Name | |||
| Street | |||
| City | |||
| State | Zip Code | ||
| County | |||
| Country | |||
| Deregistered Airworthiness | |||
| Engine Manufacturer | Classification | Unknown | |
| Engine Model | Category | ||
| A/W Date | |||
| Deregistered Other Owner Names | |||
| None | |||
| Deregistered Aircraft 2 of 2 | |||
| Aircraft Description | |||
| Serial Number | 15060439 | Certificate Issue Date | // |
| Manufacturer Name | CESSNA | Mode S Code (base 8 / oct) | 51254550 |
| Model | 150D | Mode S Code (base 16 / hex) | A55968 |
| Year Manufacturer | Cancel Date | 06/26/1964 | |
| Reason for Cancellation | Export To | CANADA | |
| Type Registration | Corporation | ||
| Aircraft Registration prior to Deregistration | |||
| Name | WESTERN SKYWAYS INC | ||
| Street | PORTLAND - TROUTDALE AIRPORT | ||
| City | TROUTDALE | ||
| State | OR | Zip Code | 97201 |
| County | Multnomah County | ||
| Country | US | ||
| Deregistered Airworthiness | |||
| Engine Manufacturer | Classification | Unknown | |
| Engine Model | Category | ||
| A/W Date | |||
| Deregistered Other Owner Names | |||
| None | |||