# N4051K: Balloon Works FIREFLY 7, registration cancelled

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: date not recorded
- 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: 7944
- Type of aircraft: Balloon
- Mode S code: A4C1B9
- The mark today: https://openairdocs.org/aircraft/N4051K
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4051K
- Page: https://openairdocs.org/deregistered/N4051K-undated

From the FAA registry file of October 28, 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 N4051K

- [Registered now](https://openairdocs.org/aircraft/N4051K): Cameron Balloons US C-100, S/N 6483, built 2007
- [Cancelled 2002-07-23](https://openairdocs.org/deregistered/N4051K-2002-07-23): Robinson Helicopter R22 BETA, S/N 1756, built 1991. Exported to Australia. Owner: [Exoz LLC](https://openairdocs.org/faa-owner/EXOZ%20LLC), [Incline Village, NV](https://openairdocs.org/faa-place/NV/Incline%20Village)
- [Cancelled 1953-12-29](https://openairdocs.org/deregistered/N4051K-1953-12-29): North American NAVION, S/N NAV-4-1051. Owner: [Ronbinson Artesian Well Co Inc](https://openairdocs.org/faa-owner/RONBINSON%20ARTESIAN%20WELL%20CO%20INC), [Lynnfield, MA](https://openairdocs.org/faa-place/MA/Lynnfield)

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