Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N999ZD.
| Tail Number / N-Number | N999ZD |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2006 |
| Manufacturer's Serial Number | 11108 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | Corporation |
| Owner Name | MIDWESTERN AIR SERVICES LLC |
| Street | 1430 45TH AVE |
| City | KENOSHA |
| State | WI |
| Zip Code | 53144-1175 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2006-02-23 |
| Certificate Issue Date | 2007-10-03 |
| Last Action Date | 2008-02-11 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2018-01-18 |
| Mode S Code | 53373125 |
| Mode S Code Hex | ADF655 |