# N7021U: 1999 Balloon Works FIREFLY 11, registration cancelled 2014-06-26

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 26, 2014
- Status when cancelled: Valid registration
- Airframe: [Balloon Works FIREFLY 11](https://openairdocs.org/model/balloon-works-firefly-11) (registry code 1050125)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS A14SO](https://openairdocs.org/tcds/A14SO) (OpenAirDocs)
- Serial number: F11-006
- Year built: 1999
- Type of aircraft: Balloon
- Engine type: None
- Airworthiness: Standard, balloon
- Airworthiness date: April 7, 1999
- Certificate issued: May 1, 2013
- Last registry action: May 1, 2013
- Mode S code: A95E8A
- Owner when cancelled: [Mars Leasing Co Inc](https://openairdocs.org/faa-owner/MARS%20LEASING%20CO%20INC)
- Location: [Scottsdale, AZ](https://openairdocs.org/faa-place/AZ/Scottsdale)
- Owner type: Corporation
- Owner's area on the map: 33.7624° N, 111.9191° W: Placed by OpenAirDocs at the center of ZIP code 85266, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N7021U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=7021U
- Page: https://openairdocs.org/deregistered/N7021U-2014-06-26

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 11: https://openairdocs.org/model/balloon-works-firefly-11.md

## NTSB investigations (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX04CA003](https://openairdocs.org/ntsb/LAX04CA003), Sep 28, 2003: Balloon Works Firefly II (N7021U), Phoenix, AZ, substantial damage. Probable cause: the pilot's diverted attention that resulted in the inadequate handling of the burner during ground operations.
- [NTSB LAX99FA273](https://openairdocs.org/ntsb/LAX99FA273), Aug 19, 1999: Balloon Works Firefly 11 (N7021U), Cave Creek, AZ, minor damage. Probable cause: An unforecast encounter with a low level microburst that resulted in a distortion of the balloon envelope, an excessive outflow of hot air (loss of lift), creating an excessive rate of descent that…

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20030928035319A](https://openairdocs.org/incident/20030928035319A), Sep 28, 2003: Balwks FIREFLY11 (N7021U), Cave Creek, AZ, Substantial damage. (-23) During landing phase, pilot engaged burner and balloon envelope caught fire. The balloon sustained substantial damage and some of the passengers received…
- [Accident 19990819024739A](https://openairdocs.org/incident/19990819024739A), Aug 19, 1999: Balwks FIREFLY11 (N7021U), Cave Creek, AZ, Minor damage. (.19) On August 19, 1999, at 0710 hours mountain standard time, a firefly 11 balloon, N7021U, landed hard in open desert terrain in Cave Creek, Arizona. The…

## Other aircraft with N7021U

- [Cancelled 1996-04-18](https://openairdocs.org/deregistered/N7021U-1996-04-18): Boeing 727-22, S/N 18313. Triennial form not returned. Owner: [Aero Controls Inc](https://openairdocs.org/faa-owner/AERO%20CONTROLS%20INC), [Auburn, WA](https://openairdocs.org/faa-place/WA/Auburn)

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