# N3721H: 1946 Engineering & Research 415-C, registration cancelled 1954-12-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 17, 1954
- Status when cancelled: Valid registration
- Airframe: [Engineering & Research 415-C](https://openairdocs.org/model/engineering-research-415-c) (registry code 0420302)
- Data sheets: [TCDS A-718](https://openairdocs.org/tcds/A-718) (OpenAirDocs)
- Serial number: 4346
- Year built: 1946
- Type of aircraft: Fixed wing single engine
- Certificate issued: March 30, 1954
- Mode S code: A43DBC
- Owner when cancelled: [Saffelder J Neil Et Al](https://openairdocs.org/faa-owner/SAFFELDER%20J%20NEIL%20ET%20AL)
- Location: [Manhattan, KS](https://openairdocs.org/faa-place/KS/Manhattan)
- Owner type: Co-owned
- The mark today: https://openairdocs.org/aircraft/N3721H
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3721H
- Page: https://openairdocs.org/deregistered/N3721H-1954-12-17

From the FAA registry file of November 7, 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 Engineering & Research 415-C: https://openairdocs.org/model/engineering-research-415-c.md

## Other aircraft with N3721H

- [Cancelled 2020-08-14](https://openairdocs.org/deregistered/N3721H-2020-08-14): Mooney M20J, S/N 24-1041. Assigned, pending cancellation

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