# N1521E: 1981 Balloon Works FIREFLY 7-B, registration cancelled 2013-06-18

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 18, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Balloon Works FIREFLY 7-B](https://openairdocs.org/model/balloon-works-firefly-7-b) (registry code 10501A9)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS A14SO](https://openairdocs.org/tcds/A14SO) (OpenAirDocs)
- Serial number: 11037
- Year built: 1981
- Type of aircraft: Balloon
- Engine type: None
- Airworthiness: Standard, balloon
- Airworthiness date: August 3, 1981
- Certificate issued: April 13, 1993
- Last registry action: April 15, 2008
- Mode S code: A0D41D
- Owner when cancelled: [Knaus Randi B](https://openairdocs.org/faa-owner/KNAUS%20RANDI%20B)
- Location: [Snohomish, WA](https://openairdocs.org/faa-place/WA/Snohomish)
- Owner type: Individual
- Owner's area on the map: 47.9392° N, 121.9940° W: Placed by OpenAirDocs at the center of ZIP code 98290, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N1521E
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1521E
- Page: https://openairdocs.org/deregistered/N1521E-2013-06-18

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-B: https://openairdocs.org/model/balloon-works-firefly-7-b.md

## Other aircraft with N1521E

- [Cancelled 1953-05-27](https://openairdocs.org/deregistered/N1521E-1953-05-27): Aeronca 7AC, S/N 7AC-5084, built 1946. Owner: [Lincoln Hubert L](https://openairdocs.org/faa-owner/LINCOLN%20HUBERT%20L), [Eaton, OH](https://openairdocs.org/faa-place/OH/Eaton)

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