# N500MZ: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: December 30, 2023
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=500MZ
- Page: https://openairdocs.org/aircraft/N500MZ

## Aircraft that carried N500MZ

- [Cancelled 2023-12-30](https://openairdocs.org/deregistered/N500MZ-2023-12-30): Hughes 500D, S/N 770159D, built 1977. Sale reported, canceled. Owner: [New Berlin, WI](https://openairdocs.org/faa-place/WI/New%20Berlin)

## NTSB investigations on N500MZ (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 CEN22LA146](https://openairdocs.org/ntsb/CEN22LA146), Mar 17, 2022: Hughes 369 (N500MZ), Adair, IA, substantial damage. Probable cause: The mechanic’s failure to properly torque a fuel control unit B-nut, which resulted in a partial loss of engine power, an attempted autorotation, and an impact with terrain.

## FAA accident and incident reports on N500MZ (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 20220317001229A](https://openairdocs.org/incident/20220317001229A), Mar 17, 2022: Hughes 500D (N500MZ), Adair, IA, Destroyed. During flight operations helicopter engine entered a low power setting. Pilot was unable to maintain altitude and subsequently crashed.

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