# N1904M: 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 27, 1971
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1904M
- Page: https://openairdocs.org/aircraft/N1904M

## Aircraft that carried N1904M

- [Cancelled 1971-12-27](https://openairdocs.org/deregistered/N1904M-1971-12-27): Douglas DC-6, S/N 42898. Owner: [Aero Tech Inc](https://openairdocs.org/faa-owner/AERO%20TECH%20INC), [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson)

## NTSB investigations on N1904M (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 MIA66A0101](https://openairdocs.org/ntsb/MIA66A0101), Mar 3, 1966: Douglas DC-6 (N1904M), Birmingham, AL, substantial damage

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