# N666U: 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: June 8, 2023
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=666U
- Page: https://openairdocs.org/aircraft/N666U

## Aircraft that carried N666U

- [Cancelled 2023-06-08](https://openairdocs.org/deregistered/N666U-2023-06-08): Robinson Helicopter R44 II, S/N 10476, built 2004. Sale reported. Owner: [Peru, IL](https://openairdocs.org/faa-place/IL/Peru)
- [Cancelled 2006-12-13](https://openairdocs.org/deregistered/N666U-2006-12-13): Robinson Helicopter R22 BETA, S/N 1036, built 1989. Triennial form not returned. Owner: [Rhedom Aviation Corp](https://openairdocs.org/faa-owner/RHEDOM%20AVIATION%20CORP), [Cranston, RI](https://openairdocs.org/faa-place/RI/Cranston)

## NTSB investigations on N666U (2)

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 ERA22LA236](https://openairdocs.org/ntsb/ERA22LA236), May 23, 2022: Robinson Helicopter R44 II (N666U), Nashua, NH, substantial damage. Probable cause: The flight instructor’s failure to maintain control of the helicopter during the takeoff, which resulted in a dynamic rollover.
- [NTSB NYC91LA011](https://openairdocs.org/ntsb/NYC91LA011), Oct 14, 1990: Robinson R22 (N666U), Woonsocket, RI, substantial damage. Probable cause: PILOT'S FAILURE TO MAINTAIN SUFFICIENT ALTITUDE ABOVE THE TERRAIN TO AVOID GETTING THE RIGHT SKID CAUGHT IN THE GRASS, RESULTING IN A LOSS OF CONTROL.

## FAA accident and incident reports on N666U (2)

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 20220523008219A](https://openairdocs.org/incident/20220523008219A), May 23, 2022: Robinson Helicopter Company R44 II (N666U), Nashua, NH, Destroyed. The purpose of the flight was to provide instruction to the [privacy data omitted]student in the R44. On this particular day, the student was working on pick…
- [Accident 19901014045849A](https://openairdocs.org/incident/19901014045849A), Oct 14, 1990: Robsin R22BETA (N666U), Woonsocket, RI, Substantial damage. Allowed a skid to touch ground during practice low hover. Entered dynamic rollover.

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