# N4312Q: 2006 Happy Valley Trikes 2P

- Status: Valid registration
- Airframe: [Happy Valley Trikes 2P](https://openairdocs.org/model/happy-valley-trikes-2p) (registry code 05901QR, 2 seats)
- Engine: [Rotax 503 series](https://openairdocs.org/engine/rotax-503-series) (registry code 55564)
- Serial number: HVT019
- Year built: 2006
- Type: Weight-shift-control
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: November 11, 2006
- Certificate issued: August 26, 2025
- Expires: August 31, 2032
- Mode S code: A52982
- Registered owner: [Sims Dustin B](https://openairdocs.org/faa-owner/SIMS%20DUSTIN%20B)
- Location: [Ringgold, GA](https://openairdocs.org/faa-place/GA/Ringgold)
- Owner type: Individual
- Owner's area on the map: 34.9024° N, 85.1340° W: Placed by OpenAirDocs at the center of ZIP code 30736, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4312Q
- Page: https://openairdocs.org/aircraft/N4312Q

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 503 model are included.

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

### Matched by airframe (Happy Valley Trikes 2P)

None in force.

### Matched by engine (Rotax 503 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4312Q.

## FAA accident and incident reports

None matched to N4312Q.

## 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 N4312Q

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4312Q before.

- [Cancelled 2002-01-14](https://openairdocs.org/deregistered/N4312Q-2002-01-14): Cessna 172L, S/N 17260212, built 1971. Owner: [Waddill James K](https://openairdocs.org/faa-owner/WADDILL%20JAMES%20K), [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson)

## Related

- Other Happy Valley Trikes 2P aircraft: https://openairdocs.org/model/happy-valley-trikes-2p/aircraft.md
- The Rotax 503 series engine: https://openairdocs.org/engine/rotax-503-series.md

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