# N4050K: 1979 Balloon Works FIREFLY 7, registration cancelled 2003-12-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 23, 2003
- Status when cancelled: Triennial form not returned
- Airframe: [Balloon Works FIREFLY 7](https://openairdocs.org/model/balloon-works-firefly-7) (registry code 1050100)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS A14SO](https://openairdocs.org/tcds/A14SO) (OpenAirDocs)
- Serial number: 7949
- Year built: 1979
- Type of aircraft: Balloon
- Engine type: None
- Airworthiness: Standard, balloon
- Airworthiness date: September 11, 1979
- Certificate issued: April 30, 1996
- Last registry action: October 16, 2001
- Mode S code: A4C196
- Owner when cancelled: [Hartpence Joe K](https://openairdocs.org/faa-owner/HARTPENCE%20JOE%20K)
- Location: [Yukon, OK](https://openairdocs.org/faa-place/OK/Yukon)
- Owner type: Individual
- Owner's area on the map: 35.5184° N, 97.7662° W: Placed by OpenAirDocs at the center of ZIP code 73099, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4050K
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4050K
- Page: https://openairdocs.org/deregistered/N4050K-2003-12-23

From the FAA registry file of October 29, 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 N4050K

- [Registered now](https://openairdocs.org/aircraft/N4050K): Quinn George Holton SKYRANGER II, S/N GHQ002, built 2009
- [Cancelled 1950-11-13](https://openairdocs.org/deregistered/N4050K-1950-11-13): Northrop N32, S/N 2502. Owner: [Northrop Aircraft Inc](https://openairdocs.org/faa-owner/NORTHROP%20AIRCRAFT%20INC), [Hawthorne, CA](https://openairdocs.org/faa-place/CA/Hawthorne)

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