# N40CT: 2018 Chris Toeppen CAVALON

- Status: Valid registration
- Airframe: [Chris Toeppen CAVALON](https://openairdocs.org/model/chris-toeppen-cavalon) (registry code 05637NH, 2 seats)
- Engine: [Rotax 914UL](https://openairdocs.org/engine/rotax-914ul) (registry code 55553)
- Serial number: V00300
- Year built: 2018
- Type: Rotorcraft
- Engine type: 4 cycle
- Kit: Autogyro Gmbh CAVALON
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 22, 2018
- Certificate issued: April 24, 2018
- Expires: April 30, 2028
- Mode S code: A4AA8C
- Registered owner: [Toeppen Chris P](https://openairdocs.org/faa-owner/TOEPPEN%20CHRIS%20P)
- Location: [Atherton, CA](https://openairdocs.org/faa-place/CA/Atherton)
- Owner type: Individual
- Owner's area on the map: 37.4563° N, 122.2015° W: Placed by OpenAirDocs at the center of ZIP code 94027, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=40CT
- Page: https://openairdocs.org/aircraft/N40CT

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 (Chris Toeppen CAVALON)

None in force.

### Matched by engine (Rotax 914UL)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

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 WPR26LA194](https://openairdocs.org/ntsb/WPR26LA194), May 13, 2026: Autogyro Cavalon (N40CT), Palo Alto, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll, in gusting crosswind conditions.

## FAA accident and incident reports (1)

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 20260513009579A](https://openairdocs.org/incident/20260513009579A), May 13, 2026: Chris Toeppen CAVALON (N40CT), Palo Alto, CA, Substantial damage. The pilot of the gyrocopter reported that during his approach to land on runway 31, the reported wind information indicated a gusting crosswind from the left.…

## 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.

## Earlier aircraft with N40CT

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N40CT before.

- [Cancelled 2012-11-15](https://openairdocs.org/deregistered/N40CT-2012-11-15): Cessna 421, S/N 421-0099, built 1968. Registration expired, pending cancellation. Owner: [C & D Travel](https://openairdocs.org/faa-owner/C%20%26%20D%20TRAVEL), [Orange, CA](https://openairdocs.org/faa-place/CA/Orange)

## Related

- Other Chris Toeppen CAVALON aircraft: https://openairdocs.org/model/chris-toeppen-cavalon/aircraft.md
- The Rotax 914UL engine: https://openairdocs.org/engine/rotax-914ul.md

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