# N4451K: 2009 Robinson Helicopter R44 II, registration cancelled 2014-03-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 12, 2014
- Exported to: China
- Status when cancelled: Sale reported
- Airframe: [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii) (registry code 7640122)
- Engine: [Lycoming IO-540-AE1A5](https://openairdocs.org/engine/lycoming-io-540-ae1a5) (registry code 41899)
- Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM), [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Serial number: 12921
- Year built: 2009
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: October 15, 2009
- Last registry action: March 12, 2014
- Mode S code: A55FB5
- Location: Jinan Shangdong, China
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N4451K
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4451K
- Page: https://openairdocs.org/deregistered/N4451K-2014-03-12

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Robinson Helicopter R44 II: https://openairdocs.org/model/robinson-helicopter-r44-ii.md

## Other aircraft with N4451K

- [Registered now](https://openairdocs.org/aircraft/N4451K): Kollmann Hubert N MONNETT MONI, S/N 00194

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