# N6643U: 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: May 26, 1976
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6643U
- Page: https://openairdocs.org/aircraft/N6643U

## Aircraft that carried N6643U

- [Cancelled 1976-05-26](https://openairdocs.org/deregistered/N6643U-1976-05-26): Mooney M20D, S/N 138. Owner: [Mayfield Duane E](https://openairdocs.org/faa-owner/MAYFIELD%20DUANE%20E), [Mason City, IA](https://openairdocs.org/faa-place/IA/Mason%20City)

## FAA accident and incident reports on N6643U (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 19750521012029A](https://openairdocs.org/incident/19750521012029A), May 21, 1975: Mooney M20D (N6643U), NE, Substantial damage

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