N4493M is not currently registered. It was last assigned to a Robinson Helicopter R44 II. The FAA cancelled the registration on May 28, 2010 when the aircraft was exported to Brazil. The last status on file was "valid registration". The number has been on and off the register 3 times.
Robinson Helicopter R44 II cancelled May 28, 2010
- Serial number
- 12942
- Type
- Rotorcraft · Piston (reciprocating)
- Year built
- —
- Last status
- Valid registration
- Exported to
- Brazil
- Certificate issued
- April 20, 2010
- Last FAA action
- April 20, 2010
- Last owner
- Business Air Parts INC (Corporation)
Fort Lauderdale, FL - Airworthiness
- None on file
Hughes 500D cancelled July 15, 2004
- Serial number
- 570137D
- Type
- Rotorcraft · Turboshaft
- Year built
- —
- Last status
- Triennial registration form was mailed and has not been returned by the Post Office
- Certificate issued
- September 22, 1999
- Last FAA action
- May 18, 2004
- Last owner
- K & S Helicopters INC (Corporation)
Kailua Kona, HI - Airworthiness
- Standard · Normal
Piper J3C-65 cancelled January 20, 1950
- Serial number
- 22628
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- 1947
- Last status
- Valid registration
- Exported to
- Cuba
- Certificate issued
- May 17, 1949
- Last FAA action
- —
- Last owner
- Sankey Frank (Individual)
Miami, FL - Airworthiness
- None on file
NTSB accident and incident record under N4493M
Aircraft on the NTSB record: Mcdonnell Douglas 369D · serial 570137D
a loss of engine power due to the fatigue fracture and separation of the compressor coupling adapter. The fatigue fracture was initiated by fretting on the pilot diameter due to both the inadequate design of the coupling and the coaxial misalignment of the spur adapter gear, compressor-coupling adapter, and compressor impeller during recent engine maintenance where the gearbox was removed and replaced. A factor in the accident was the unsuitable nature of the terrain to make an emergency landing.
Aircraft on the NTSB record: Hughes 369-500D · serial 5701370
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