N-Number: N4466
Information Updated 01/06/2026
Aircraft Description
| N-Number | N4466 | ||
| Serial Number | 10374 | Status | Valid |
| Manufacturer Name | ROBINSON HELICOPTER COMPANY | Certificate Issue Date | 03/19/2016 |
| Model | R44 II | Expiration Date | 03/31/2022 |
| Type Aircraft | Rotorcraft | Type Engine | Reciprocating |
| Pending Number Change | Dealer | ||
| Date Change Authorized | Mode S Code (base 8 / octal) | 51262021 | |
| MFR Year | 2004 | Mode S Code (base 16 / hex) | A56411 |
| Type Registration | Unknown | Fractional Owner | No |
Registered Owner
| Name | BACK NINE AERIAL LLC | ||
| Street | 20115 W RUSTIC RIDGE DR | ||
| City | NEW BERLIN | State | WI |
| County | WAUKESHA COUNTY | Zip Code | 53146-3036 |
| Country | US | ||
Airworthiness
| Engine Manufacturer | LYCOMING | A/W Date | 07/08/2016 |
| Engine Model | IO-540-AE1A5 | Classification | Multiple |
| Category | |||
Other Owner Names
| None |
NTSB Records
| None |
Deregistered Aircraft
| Deregistered Aircraft 1 of 2 | |||
| Aircraft Description | |||
| Serial Number | 018 | Certificate Issue Date | 10/21/1968 |
| Manufacturer Name | ENSTROM | Mode S Code (base 8 / oct) | 51262021 |
| Model | F-28A | Mode S Code (base 16 / hex) | A56411 |
| Year Manufacturer | Cancel Date | 03/12/1999 | |
| Reason for Cancellation | Export To | ||
| Type Registration | Corporation | ||
| Aircraft Registration prior to Deregistration | |||
| Name | R J ENSTROM CORP | ||
| Street | BOX 277 | ||
| City | MENOMINEE | ||
| State | MI | Zip Code | 49858 |
| County | Menominee 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 | 1326 | Certificate Issue Date | // |
| Manufacturer Name | WACO | Mode S Code (base 8 / oct) | 51262021 |
| Model | 10 | Mode S Code (base 16 / hex) | A56411 |
| Year Manufacturer | Cancel Date | 10/11/1929 | |
| Reason for Cancellation | Export To | ||
| Type Registration | Individual | ||
| Aircraft Registration prior to Deregistration | |||
| Name | KLENDWORTH EARL G | ||
| Street | |||
| City | |||
| State | Zip Code | ||
| County | |||
| Country | |||
| Deregistered Airworthiness | |||
| Engine Manufacturer | Classification | Unknown | |
| Engine Model | Category | ||
| A/W Date | |||
| Deregistered Other Owner Names | |||
| None | |||