N666U is not currently registered. It was last assigned to a Robinson Helicopter R44 II built in 2004. The FAA cancelled the registration on June 8, 2023. The last status on file was "sale reported". The number has been on and off the register 2 times.
N666U is reserved by a private party since June 8, 2023. Reservation type: Two-year hold for canceled N-numbers.
Robinson Helicopter R44 II cancelled June 8, 2023
- Serial number
- 10476
- Type
- Rotorcraft · Piston (reciprocating)
- Year built
- 2004
- Last status
- Sale reported
- Certificate issued
- —
- Last FAA action
- June 8, 2023
- Last owner
- Sale Reported (Individual)
Peru, IL - Airworthiness
- Standard · Normal
Robinson Helicopter R22 BETA cancelled December 13, 2006
- Serial number
- 1036
- Type
- Rotorcraft · Piston (reciprocating)
- Year built
- 1989
- Last status
- Triennial registration form was mailed and has not been returned by the Post Office
- Certificate issued
- February 9, 1990
- Last FAA action
- October 18, 2005
- Last owner
- Rhedom Aviation CORP (Individual)
Cranston, RI - Airworthiness
- Standard · Normal
NTSB accident and incident record under N666U
Aircraft on the NTSB record: Robinson Helicopter Company R44 II · serial 10476
The flight instructor’s failure to maintain control of the helicopter during the takeoff, which resulted in a dynamic rollover.
Aircraft on the NTSB record: Robinson R22 · serial 11036
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.
A tail number passes between aircraft over the years; match the serial number on the NTSB record against the airframe above. Source: NTSB aviation accident database, records through September 30, 2026.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this number on the FAA site