# N83BK: 2007 Koza William J TIERRA

- Status: Valid registration
- Airframe: [Koza William J TIERRA](https://openairdocs.org/model/koza-william-j-tierra) (registry code 0590203, 1 seats)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: 001
- Year built: 2007
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: October 11, 2007
- Certificate issued: July 23, 2007
- Expires: March 31, 2028
- Mode S code: AB5624
- Registered owner: [Koza Williams J](https://openairdocs.org/faa-owner/KOZA%20WILLIAMS%20J)
- Location: [Albert Lea, MN](https://openairdocs.org/faa-place/MN/Albert%20Lea)
- Owner type: Individual
- Owner's area on the map: 43.6609° N, 93.3246° W: Placed by OpenAirDocs at the center of ZIP code 56007, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=83BK
- Page: https://openairdocs.org/aircraft/N83BK

From the FAA registry file of October 24, 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 (Koza William J TIERRA)

None in force.

### Matched by engine (Rotax 503 DCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N83BK.

## FAA accident and incident reports

None matched to N83BK.

## 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 Koza William J TIERRA aircraft: https://openairdocs.org/model/koza-william-j-tierra/aircraft.md
- The Rotax 503 DCDI engine: https://openairdocs.org/engine/rotax-503-dcdi.md

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