# N4721Z: 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 6, 1984
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4721Z
- Page: https://openairdocs.org/aircraft/N4721Z

## Aircraft that carried N4721Z

- [Cancelled 1984-04-06](https://openairdocs.org/deregistered/N4721Z-1984-04-06): Piper PA-22-108, S/N 22-8266. Exported to Canada. Owner: [Woodside Byron C](https://openairdocs.org/faa-owner/WOODSIDE%20BYRON%20C), [Manassas, VA](https://openairdocs.org/faa-place/VA/Manassas)

## NTSB investigations on N4721Z (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 UNK64X3638](https://openairdocs.org/ntsb/UNK64X3638), Aug 28, 1964: Piper PA22 (N4721Z), Gt Barrington, MA, substantial damage

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