N953SD is not currently registered. It was last assigned to a Mcdonnell Douglas Helicopter 500N built in 1995. The FAA cancelled the registration on March 2, 2005 when the aircraft was exported to New Zealand. The last status on file was "valid registration".
Mcdonnell Douglas Helicopter 500N cancelled March 2, 2005
- Serial number
- LN070
- Type
- Rotorcraft · Turboshaft
- Year built
- 1995
- Last status
- Valid registration
- Exported to
- New Zealand
- Certificate issued
- June 30, 2004
- Last FAA action
- June 30, 2004
- Last owner
- Noevir Aviation INC (Corporation)
Montvale, NJ - Airworthiness
- Standard · Normal
NTSB accident and incident record under N953SD
Aircraft on the NTSB record: Mdhi 520N · serial LN070
the excitation of the first bending mode natural frequency of the aft tube assembly that is installed through the rotating NOTAR fan drive system. Contributing factors to the incident included the operator's maintenance practice of hand-sanding the pitch slider component of the NOTAR fan system.
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