# N25431: 1939 Rearwin 9000-KR

- Status: Valid registration
- Airframe: [Rearwin 9000-KR](https://openairdocs.org/model/rearwin-9000-kr) (registry code 2371402, 2 seats)
- Engine: [Ken Royce 90-5 series](https://openairdocs.org/engine/ken-royce-90-5-series) (registry code 37002)
- Data sheets: [TCDS A-591](https://openairdocs.org/tcds/A-591) (Commonwealth Aircraft Inc.) (OpenAirDocs)
- Serial number: 652D
- Year built: 1939
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: July 9, 1958
- Certificate issued: October 15, 2018
- Expires: October 31, 2028
- Mode S code: A26935
- Registered owner: [Cullman Daniel H](https://openairdocs.org/faa-owner/CULLMAN%20DANIEL%20H)
- Location: [Kent, WA](https://openairdocs.org/faa-place/WA/Kent)
- Owner type: Individual
- Owner's area on the map: 47.3635° N, 122.1183° W: Placed by OpenAirDocs at the center of ZIP code 98042, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=25431
- Page: https://openairdocs.org/aircraft/N25431

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 Ken Royce 90-5 model are included.

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

### Matched by airframe (Rearwin 9000-KR)

None in force.

### Matched by engine (Ken Royce 90-5 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N25431.

## FAA accident and incident reports

None matched to N25431.

## 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) (4)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Rearwin 9000-KR)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc
- [STC SA167CH](https://openairdocs.org/stc/SA167CH): Surrendered and incorporated into STC SA00478CH. Cooper Aviation Supply Company, Inc
- [STC SA229WE](https://openairdocs.org/stc/SA229WE): Ceconite 101 covering of wings, ailerons, horizontal stabilizer, elevators, vertical fin and rudder. Cooper Engineering Corporation

## Related

- Other Rearwin 9000-KR aircraft: https://openairdocs.org/model/rearwin-9000-kr/aircraft.md
- The Ken Royce 90-5 series engine: https://openairdocs.org/engine/ken-royce-90-5-series.md

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