# N953SD: 1995 Mcdonnell Douglas Helicopter 500N, registration cancelled 2005-03-02

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 2, 2005
- Exported to: New Zealand
- Status when cancelled: Valid registration
- Airframe: [Mcdonnell Douglas Helicopter 500N](https://openairdocs.org/model/mcdonnell-douglas-helicopter-500n) (registry code 3027374)
- Engine: [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series) (registry code 03020)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE), [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs)
- Serial number: LN070
- Year built: 1995
- Type of aircraft: Rotorcraft
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: February 28, 1995
- Certificate issued: June 30, 2004
- Last registry action: June 30, 2004
- Mode S code: AD4160
- Owner when cancelled: [Noevir Aviation Inc](https://openairdocs.org/faa-owner/NOEVIR%20AVIATION%20INC)
- Location: [Montvale, NJ](https://openairdocs.org/faa-place/NJ/Montvale)
- Owner type: Corporation
- Owner's area on the map: 41.0546° N, 74.0473° W: Placed by OpenAirDocs at the center of ZIP code 07645, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N953SD
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=953SD
- Page: https://openairdocs.org/deregistered/N953SD-2005-03-02

From the FAA registry file of October 31, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Mcdonnell Douglas Helicopter 500N: https://openairdocs.org/model/mcdonnell-douglas-helicopter-500n.md

## NTSB investigations (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 LAX01IA262](https://openairdocs.org/ntsb/LAX01IA262), Jul 25, 2001: Mdhi 520N (N953SD), Los Angeles, CA, incident, minor damage. Probable cause: 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…

## FAA accident and incident reports (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.

- [Incident 20010725019489I](https://openairdocs.org/incident/20010725019489I), Jul 25, 2001: Hughes 500N (N953SD), Los Angeles, CA. (-23) See attached pilot statement from deputy sinclair, the PIC for this flight. This investigation continues as of this date. However a SDR was submitted.…

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