# N812MM: 2015 Ron M Dunn RV-12

- Status: Valid registration
- Airframe: [Ron M Dunn RV-12](https://openairdocs.org/model/ron-m-dunn-rv-12) (registry code 05634FU, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: 120517
- Year built: 2015
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Vans Aircraft Inc RV-12
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 2, 2015
- Certificate issued: July 17, 2024
- Expires: July 31, 2031
- Mode S code: AB11E9
- Registered owner: [Harnel Douglas R](https://openairdocs.org/faa-owner/HARNEL%20DOUGLAS%20R)
- Location: [Lake City, CO](https://openairdocs.org/faa-place/CO/Lake%20City)
- Owner type: Individual
- Owner's area on the map: 37.9651° N, 107.4051° W: Placed by OpenAirDocs at the center of ZIP code 81235, within about 13 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=812MM
- Page: https://openairdocs.org/aircraft/N812MM

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 (Ron M Dunn RV-12)

None in force.

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

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 CEN26LA251](https://openairdocs.org/ntsb/CEN26LA251), Jul 10, 2026: Vans RV-12 (N812MM), Grand Junction, CO, substantial damage, investigation ongoing

## FAA accident and incident reports

None matched to N812MM.

## 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 Ron M Dunn RV-12 aircraft: https://openairdocs.org/model/ron-m-dunn-rv-12/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

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