# N746BK: 2012 Larry G Korzdorfer AUTOGYRO CALIDUS

- Status: Valid registration
- Airframe: [Larry G Korzdorfer AUTOGYRO CALIDUS](https://openairdocs.org/model/larry-g-korzdorfer-autogyro-calidus) (registry code 0563186, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: C00233
- Year built: 2012
- Type: Rotorcraft
- Engine type: 4 cycle
- Kit: Autogyro CALIDUS
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 12, 2012
- Certificate issued: July 7, 2026
- Expires: July 31, 2033
- Mode S code: AA08F7
- Registered owner: [Hoffman Stephen](https://openairdocs.org/faa-owner/HOFFMAN%20STEPHEN)
- Location: [Hereford, TX](https://openairdocs.org/faa-place/TX/Hereford)
- Owner type: Individual
- Owner's area on the map: 34.8999° N, 102.5148° W: Placed by OpenAirDocs at the center of ZIP code 79045, within about 19 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=746BK
- Page: https://openairdocs.org/aircraft/N746BK

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. The registry lists only the engine series, so ADs for every Rotax 912ULS model are included.

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

### Matched by airframe (Larry G Korzdorfer AUTOGYRO CALIDUS)

None in force.

### Matched by engine (Rotax 912ULS series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N746BK.

## FAA accident and incident reports

None matched to N746BK.

## 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 Larry G Korzdorfer AUTOGYRO CALIDUS aircraft: https://openairdocs.org/model/larry-g-korzdorfer-autogyro-calidus/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

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