# N850W: 1931 Bird CK

- Status: Valid registration
- Airframe: [Bird CK](https://openairdocs.org/model/bird-ck) (registry code 6840112, 3 seats)
- Engine: [Kinner B5 series](https://openairdocs.org/engine/kinner-b5-series) (registry code 37501)
- Serial number: 4012
- Year built: 1931
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: October 13, 1961
- Certificate issued: December 12, 1994
- Expires: July 31, 2029
- Mode S code: ABA94C
- Registered owner: [Rhinebeck Aerodrome Museum](https://openairdocs.org/faa-owner/RHINEBECK%20AERODROME%20MUSEUM)
- Location: [Rhinebeck, NY](https://openairdocs.org/faa-place/NY/Rhinebeck)
- Owner type: Corporation
- Owner's area on the map: 41.9249° N, 73.8637° W: Placed by OpenAirDocs at the center of ZIP code 12572, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=850W
- Page: https://openairdocs.org/aircraft/N850W

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 Kinner B5 model are included.

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

### Matched by airframe (Bird CK)

None in force.

### Matched by engine (Kinner B5 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N850W.

## FAA accident and incident reports

None matched to N850W.

## 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 Bird CK aircraft: https://openairdocs.org/model/bird-ck/aircraft.md
- The Kinner B5 series engine: https://openairdocs.org/engine/kinner-b5-series.md

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