# N273X: 1997 Younkin J R MULLICOUPE

- Status: Valid registration
- Airframe: [Younkin J R MULLICOUPE](https://openairdocs.org/model/younkin-j-r-mullicoupe) (registry code 05604U0, 2 seats)
- Engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008)
- Serial number: JRY-03-1
- Year built: 1997
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 25, 2003
- Certificate issued: February 10, 2021
- Expires: February 29, 2028
- Mode S code: A2B3AE
- Registered owners: [Bowe Walter C Trustee](https://openairdocs.org/faa-owner/BOWE%20WALTER%20C%20TRUSTEE), [Mendieta Carlene A Trustee](https://openairdocs.org/faa-owner/MENDIETA%20CARLENE%20A%20TRUSTEE)
- Location: [Sonoma, CA](https://openairdocs.org/faa-place/CA/Sonoma)
- Owner type: Co-owned
- Owner's area on the map: 38.2558° N, 122.4609° W: Placed by OpenAirDocs at the center of ZIP code 95476, 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=273X
- Page: https://openairdocs.org/aircraft/N273X

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 Pratt & Whitney R-985 model are included.

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

### Matched by airframe (Younkin J R MULLICOUPE)

None in force.

### Matched by engine (Pratt & Whitney R-985 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 CEN10LA046](https://openairdocs.org/ntsb/CEN10LA046), Nov 10, 2009: Younkin J R Mullicoupe (N273X), Siloam Springs, AR, substantial damage. Probable cause: A loss of engine power due to fuel starvation for undetermined reasons.

## 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 20091110021359A](https://openairdocs.org/incident/20091110021359A), Nov 10, 2009: Amtr MULLICOUPE (N273X), Siloam Springs, AR, Substantial damage. On November 10, 2009, at 13:30 CST a younkin Mullicoupe experimental, N273X, register to jr younkin took off from Siloam spring airport (kslg) in Siloam spring…

## 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 Younkin J R MULLICOUPE aircraft: https://openairdocs.org/model/younkin-j-r-mullicoupe/aircraft.md
- The Pratt & Whitney R-985 series engine: https://openairdocs.org/engine/pratt-whitney-r-985-series.md

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