# N504KB: 2025 Kubicek Factory S R O BB26AZ

- Status: Valid registration
- Airframe: [Kubicek Factory S R O BB26AZ](https://openairdocs.org/model/kubicek-factory-s-r-o-bb26az) (registry code 1370490, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS B04CE](https://openairdocs.org/tcds/B04CE) (Kubíček Factory s.r.o) (OpenAirDocs)
- Serial number: 2420
- Year built: 2025
- Type: Balloon
- Engine type: None
- Airworthiness: Standard, balloon
- Airworthiness date: July 2, 2025
- Certificate issued: April 28, 2025
- Expires: April 30, 2032
- Mode S code: A649AF
- Registered owner: [Windsurfer Ballooning LLC](https://openairdocs.org/faa-owner/WINDSURFER%20BALLOONING%20LLC)
- Location: [Carlisle, IA](https://openairdocs.org/faa-place/IA/Carlisle)
- Owner type: LLC
- Owner's area on the map: 41.4751° N, 93.4673° W: Placed by OpenAirDocs at the center of ZIP code 50047, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=504KB
- Page: https://openairdocs.org/aircraft/N504KB

From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Kubicek Factory S R O BB26AZ)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N504KB.

## FAA accident and incident reports

None matched to N504KB.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Kubicek Factory S R O BB26AZ aircraft: https://openairdocs.org/model/kubicek-factory-s-r-o-bb26az/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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