# N3721B: 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: June 29, 1970
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3721B
- Page: https://openairdocs.org/aircraft/N3721B

## Aircraft that carried N3721B

- [Cancelled 1970-06-29](https://openairdocs.org/deregistered/N3721B-1970-06-29): Beech E18S, S/N BA-49. Owner: [Quarnstrom Land Co](https://openairdocs.org/faa-owner/QUARNSTROM%20LAND%20CO), [Detroit, MI](https://openairdocs.org/faa-place/MI/Detroit)

## NTSB investigations on N3721B (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 CHI67A0042](https://openairdocs.org/ntsb/CHI67A0042), Sep 25, 1966: Beech E18S (N3721B), Charlevoix, MI, destroyed, 2 fatal

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.