# N179CH: Unternaehrer Robert U Trustee UNTERNAEHRER CHLNGR

- Status: Valid registration
- Airframe: [Unternaehrer Robert U Trustee UNTERNAEHRER CHLNGR](https://openairdocs.org/model/unternaehrer-robert-u-trustee-unternaehrer-chlngr) (registry code 05617XL, 2 seats)
- Engine: [Rotax SEE BOMBADIER](https://openairdocs.org/engine/rotax-see-bombadier) (registry code 55555)
- Serial number: SF2004
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: June 22, 2004
- Certificate issued: July 6, 2018
- Expires: July 31, 2028
- Mode S code: A13AD6
- Registered owners: [Unternaehrer Robert U Trustee](https://openairdocs.org/faa-owner/UNTERNAEHRER%20ROBERT%20U%20TRUSTEE), [Unternaehrer Deborah A Trustee](https://openairdocs.org/faa-owner/UNTERNAEHRER%20DEBORAH%20A%20TRUSTEE)
- Location: [Brunswick, MO](https://openairdocs.org/faa-place/MO/Brunswick)
- Owner type: Co-owned
- Owner's area on the map: 39.4532° N, 93.0873° W: Placed by OpenAirDocs at the center of ZIP code 65236, 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=179CH
- Page: https://openairdocs.org/aircraft/N179CH

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 (Unternaehrer Robert U Trustee UNTERNAEHRER CHLNGR)

None in force.

### Matched by engine (Rotax SEE BOMBADIER)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N179CH.

## FAA accident and incident reports

None matched to N179CH.

## 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 Unternaehrer Robert U Trustee UNTERNAEHRER CHLNGR aircraft: https://openairdocs.org/model/unternaehrer-robert-u-trustee-unternaehrer-chlngr/aircraft.md
- The Rotax SEE BOMBADIER engine: https://openairdocs.org/engine/rotax-see-bombadier.md

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