# N3990B: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 2
- Last cancelled: March 15, 2011
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3990B
- Page: https://openairdocs.org/aircraft/N3990B

## Aircraft that carried N3990B

- [Cancelled 2011-03-15](https://openairdocs.org/deregistered/N3990B-2011-03-15): Lambert Ultralights STARFLIGHT DBL 1000, S/N 5006. Assigned, pending cancellation
- [Cancelled 1970-06-23](https://openairdocs.org/deregistered/N3990B-1970-06-23): Boeing E75, S/N 75-5223. Owner: [Irwin Frank A](https://openairdocs.org/faa-owner/IRWIN%20FRANK%20A), [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio)

## NTSB investigations on N3990B (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 FTW69F0155](https://openairdocs.org/ntsb/FTW69F0155), Aug 27, 1968: Boeing E75 (N3990B), Mumford, TX, substantial damage, 1 fatal

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