# N436WR: 1945 Commonwealth CA-16 MK 3

- Status: Valid registration
- Airframe: [Commonwealth CA-16 MK 3](https://openairdocs.org/model/commonwealth-ca-16-mk-3) (registry code 056348M, 2 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: A20-704
- Year built: 1945
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: December 9, 2021
- Certificate issued: December 14, 2016
- Expires: December 31, 2029
- Mode S code: A53B6C
- Registered owner: [Weeks Kermit A](https://openairdocs.org/faa-owner/WEEKS%20KERMIT%20A)
- Location: [Polk City, FL](https://openairdocs.org/faa-place/FL/Polk%20City)
- Owner type: Individual
- Owner's area on the map: 28.2676° N, 81.8538° W: Placed by OpenAirDocs at the center of ZIP code 33868, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=436WR
- Page: https://openairdocs.org/aircraft/N436WR

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 R1340 model are included.

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

### Matched by airframe (Commonwealth CA-16 MK 3)

None in force.

### Matched by engine (Pratt & Whitney R1340 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N436WR.

## FAA accident and incident reports

None matched to N436WR.

## 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 Commonwealth CA-16 MK 3 aircraft: https://openairdocs.org/model/commonwealth-ca-16-mk-3/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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