# N520DD: Mcdonnell Douglas Helicopter 500N, registration cancelled 1997-06-02

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 2, 1997
- Exported to: Venezuela
- Status when cancelled: Valid registration
- Airframe: [Mcdonnell Douglas Helicopter 500N](https://openairdocs.org/model/mcdonnell-douglas-helicopter-500n) (registry code 3027374)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (OpenAirDocs)
- Serial number: LN030
- Type of aircraft: Rotorcraft
- Certificate issued: April 25, 1997
- Last registry action: April 25, 1997
- Mode S code: A6893D
- Owner when cancelled: [Cherokee Aviation](https://openairdocs.org/faa-owner/CHEROKEE%20AVIATION)
- Location: [Midlothian, TX](https://openairdocs.org/faa-place/TX/Midlothian)
- Owner type: Corporation
- Owner's area on the map: 32.4682° N, 96.9907° W: Placed by OpenAirDocs at the center of ZIP code 76065, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N520DD
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=520DD
- Page: https://openairdocs.org/deregistered/N520DD-1997-06-02

From the FAA registry file of October 29, 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 FTW96TA222](https://openairdocs.org/ntsb/FTW96TA222), May 16, 1996: McDonnell Douglas MD-520N (N520DD), Bethany, OK, substantial damage. Probable cause: The main rotor blades' contact with the tail boom due to gusting winds during rotor deceleration.

## 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.

- [Accident 19960516011459A](https://openairdocs.org/incident/19960516011459A), May 16, 1996: Hughes 500N (N520DD), Oklahoma City, OK, Substantial damage. Evaluation FAA check flight. During spool down and parking. Wind gusts caused rotors to come down. Struck tailboom. (-23) the pilot had just completed a one…

## Other aircraft with N520DD

- [Registered now](https://openairdocs.org/aircraft/N520DD): Beech 200, S/N BB-738, built 1980

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