# N4104D: Helio H-391B, registration cancelled 1961-10-25

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 25, 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: 022
- Type of aircraft: Fixed wing single engine
- Certificate issued: December 19, 1955
- Mode S code: A4D708
- Owner when cancelled: [Summer Institute Of Linguistics](https://openairdocs.org/faa-owner/SUMMER%20INSTITUTE%20OF%20LINGUISTICS)
- Location: [Glendale, CA](https://openairdocs.org/faa-place/CA/Glendale)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4104D
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4104D
- Page: https://openairdocs.org/deregistered/N4104D-1961-10-25

From the FAA registry file of November 12, 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 N4104D

- [Cancelled 1998-06-18](https://openairdocs.org/deregistered/N4104D-1998-06-18): Cessna 182S, S/N 18280176. Exported to United Kingdom. Owner: [Globe Aero Ltd](https://openairdocs.org/faa-owner/GLOBE%20AERO%20LTD), [Lakeland, FL](https://openairdocs.org/faa-place/FL/Lakeland)

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