# N3121: 1971 Shaddox BENSEN GYROCOPTER B-, registration cancelled 1977-08-18

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 18, 1977
- Status when cancelled: Valid registration
- Airframe: [Shaddox BENSEN GYROCOPTER B-](https://openairdocs.org/model/shaddox-bensen-gyrocopter-b) (registry code 1300821)
- Serial number: 1
- Year built: 1971
- Type of aircraft: Rotorcraft
- Certificate issued: May 12, 1972
- Mode S code: A350BA
- Owner when cancelled: [Shaddox Joe T](https://openairdocs.org/faa-owner/SHADDOX%20JOE%20T)
- Location: [Harrison, AR](https://openairdocs.org/faa-place/AR/Harrison)
- Owner type: Individual
- Owner's area on the map: 36.2380° N, 93.0860° W: Placed by OpenAirDocs at the center of ZIP code 72601, within about 11 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N3121
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3121
- Page: https://openairdocs.org/deregistered/N3121-1977-08-18

From the FAA registry file of October 29, 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 Shaddox BENSEN GYROCOPTER B-: https://openairdocs.org/model/shaddox-bensen-gyrocopter-b.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 FTW77FPG59](https://openairdocs.org/ntsb/FTW77FPG59), Jun 11, 1977: Bensen B8M (N3121), Berryville, AR, destroyed, 1 fatal

## Other aircraft with N3121

- [Registered now](https://openairdocs.org/aircraft/N3121): Creed K M Jr/Gps Aerial Svcs COMP AIR 7, S/N 017273
- [Cancelled 1971-08-31](https://openairdocs.org/deregistered/N3121-1971-08-31): Bensen B-8M, S/N RX7464. Owner: [Lockard Christopher](https://openairdocs.org/faa-owner/LOCKARD%20CHRISTOPHER), [Aurora, IL](https://openairdocs.org/faa-place/IL/Aurora)

---
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.