# N4051U: Balloon Works FIREFLY 7, registration cancelled 1999-07-12

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 12, 1999
- Status when cancelled: Triennial form not returned
- Airframe: [Balloon Works FIREFLY 7](https://openairdocs.org/model/balloon-works-firefly-7) (registry code 1050100)
- Data sheets: [TCDS A14SO](https://openairdocs.org/tcds/A14SO) (OpenAirDocs)
- Serial number: 7950
- Type of aircraft: Balloon
- Certificate issued: May 17, 1993
- Last registry action: May 18, 1999
- Mode S code: A4C1C2
- Owner when cancelled: [Handcock Thomas](https://openairdocs.org/faa-owner/HANDCOCK%20THOMAS)
- Location: [Portland, ME](https://openairdocs.org/faa-place/ME/Portland)
- Owner type: Individual
- Owner's area on the map: 43.6954° N, 70.2887° W: Placed by OpenAirDocs at the center of ZIP code 04103, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4051U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4051U
- Page: https://openairdocs.org/deregistered/N4051U-1999-07-12

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 Balloon Works FIREFLY 7: https://openairdocs.org/model/balloon-works-firefly-7.md

## Other aircraft with N4051U

- [Registered now](https://openairdocs.org/aircraft/N4051U): White Gordon S WHITE MODEL I, S/N 001, built 2010
- [Cancelled 1965-08-05](https://openairdocs.org/deregistered/N4051U-1965-08-05): Cessna 150E, S/N 15061451. Exported to Norway. Owner: [Cessna Aircraft Co](https://openairdocs.org/faa-owner/CESSNA%20AIRCRAFT%20CO), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita)

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