Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N644BS.
| Tail Number / N-Number | N644BS |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2007 |
| Manufacturer's Serial Number | 11642 |
| 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-AE1A5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | Corporation |
| Owner Name | ROBINSON HELICOPTER CO |
| Street | 2901 AIRPORT DR |
| City | TORRANCE |
| State | CA |
| Zip Code | 90505-6115 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2007-02-24 |
| Last Action Date | 2008-01-30 |
| Last Status | Valid Registration |
| Cancellation Date | 2017-07-05 |
| Mode S Code | 52072101 |
| Mode S Code Hex | A87441 |