# N31U: 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: September 25, 2012
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=31U
- Page: https://openairdocs.org/aircraft/N31U

## Aircraft that carried N31U

- [Cancelled 2012-09-25](https://openairdocs.org/deregistered/N31U-2012-09-25): Ryan NAVION B, S/N NAV-4-2100B, built 1950. Registration expired, pending cancellation. Owner: [Osborn Aviation Inc](https://openairdocs.org/faa-owner/OSBORN%20AVIATION%20INC), [Wasco, CA](https://openairdocs.org/faa-place/CA/Wasco)

## NTSB investigations on N31U (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 UNK64X2099](https://openairdocs.org/ntsb/UNK64X2099), Jun 4, 1964: Navion NAV4 (N31U), Santa Ynez, CA, substantial damage

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