# N4131D: Helio H-391B, registration cancelled 1961-11-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 5, 1961
- Exported to: Ecuador
- Status when cancelled: Valid registration
- Airframe: [Helio H-391B](https://openairdocs.org/model/helio-h-391b) (registry code 4300106)
- Data sheets: [TCDS 1A8](https://openairdocs.org/tcds/1A8) (OpenAirDocs)
- Serial number: 067
- Type of aircraft: Fixed wing single engine
- Certificate issued: January 23, 1958
- Mode S code: A4E1C4
- Owner when cancelled: [Summer Institute Of Linguistics](https://openairdocs.org/faa-owner/SUMMER%20INSTITUTE%20OF%20LINGUISTICS)
- Location: Quito, Ecuador
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4131D
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4131D
- Page: https://openairdocs.org/deregistered/N4131D-1961-11-05

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 Helio H-391B: https://openairdocs.org/model/helio-h-391b.md

## Other aircraft with N4131D

- [Cancelled 2018-01-04](https://openairdocs.org/deregistered/N4131D-2018-01-04): Cessna 310N, S/N 310N-0031, built 1967. Registration expired, pending cancellation. Owner: [Burrill Electric](https://openairdocs.org/faa-owner/BURRILL%20ELECTRIC), [White City, OR](https://openairdocs.org/faa-place/OR/White%20City)

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