# N6421M: Stinson 108-3, registration cancelled 1971-02-02

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 2, 1971
- Status when cancelled: Valid registration
- Airframe: [Stinson 108-3](https://openairdocs.org/model/stinson-108-3) (registry code 9230408)
- Data sheets: [TCDS A-767](https://openairdocs.org/tcds/A-767) (OpenAirDocs)
- Serial number: 108-4421
- Type of aircraft: Fixed wing single engine
- Certificate issued: March 3, 1966
- Mode S code: A86F30
- Owner when cancelled: [C B Mcmahan Aerial](https://openairdocs.org/faa-owner/C%20B%20MCMAHAN%20AERIAL)
- Location: [Monroe, LA](https://openairdocs.org/faa-place/LA/Monroe)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N6421M
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6421M
- Page: https://openairdocs.org/deregistered/N6421M-1971-02-02

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Stinson 108-3: https://openairdocs.org/model/stinson-108-3.md

## NTSB investigations (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 CHI68F0264](https://openairdocs.org/ntsb/CHI68F0264), Sep 7, 1967: Stinson 108-3 (N6421M), Lore City, OH, substantial damage

---
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.