# N51721: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 2
- Last cancelled: April 1, 2013
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51721
- Page: https://openairdocs.org/aircraft/N51721

## Aircraft that carried N51721

- [Cancelled 2013-04-01](https://openairdocs.org/deregistered/N51721-2013-04-01): Enstrom Helicopter 280C, S/N 1127, built 1978. Registration expired, pending cancellation. Owner: [Spectrum Helicopters Inc](https://openairdocs.org/faa-owner/SPECTRUM%20HELICOPTERS%20INC), [Ridgefield Park, NJ](https://openairdocs.org/faa-place/NJ/Ridgefield%20Park)
- [Cancelled 1955-10-20](https://openairdocs.org/deregistered/N51721-1955-10-20): Fairchild M-62A, S/N T43-5657. Owner: [Hanson Orville G](https://openairdocs.org/faa-owner/HANSON%20ORVILLE%20G), [Tulsa, OK](https://openairdocs.org/faa-place/OK/Tulsa)

## NTSB investigations on N51721 (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB NYC86LA107](https://openairdocs.org/ntsb/NYC86LA107), Apr 18, 1986: Enstrom F-280C (N51721), Ridgefield, NJ, substantial damage

## FAA accident and incident reports on N51721 (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19860418014779A](https://openairdocs.org/incident/19860418014779A), Apr 18, 1986: Enstrm 280C (N51721), Ridgefield Park, NJ, Substantial damage. The helicopter impacted the water during takeoff. No mechanical malfunctions found. Pilot was noted to be rushing

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