# N521ZZ: 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: April 1, 1998
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=521ZZ
- Page: https://openairdocs.org/aircraft/N521ZZ

## Aircraft that carried N521ZZ

- [Cancelled 1998-04-01](https://openairdocs.org/deregistered/N521ZZ-1998-04-01): Hughes Helicopters HUGHES 369D, S/N 970190D. Triennial form not returned. Owner: [Big Eye Helicopters Inc](https://openairdocs.org/faa-owner/BIG%20EYE%20HELICOPTERS%20INC), [Tumon, GU](https://openairdocs.org/faa-place/GU/Tumon)

## NTSB investigations on N521ZZ (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 LAX98LA079](https://openairdocs.org/ntsb/LAX98LA079), Jan 24, 1998: Hughes 369D (N521ZZ), Pacific Ocean (Pacific Ocean), destroyed, 1 fatal. Probable cause: The pilot's failure to adequately compensate for the wind condition and failure to maintain a proper rate of descent which resulted in the inadvertent loss of tail rotor effectiveness during a…

## FAA accident and incident reports on N521ZZ (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 19980124000609A](https://openairdocs.org/incident/19980124000609A), Jan 24, 1998: Hughes 369D (N521ZZ), Pacific Ocean, BP, Destroyed, 1 fatal. On January 24, 1998, at 1300 hours saipan standard time, a hughtes 369D, N521ZZ, operated by big eye helicopters, inc., guam, crashed into international south…

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