# N131WT: 1954 Trautmann Wolf H O CASA 1.131-E

- Status: Valid registration
- Airframe: [Trautmann Wolf H O CASA 1.131-E](https://openairdocs.org/model/trautmann-wolf-h-o-casa-1-131-e) (registry code 05603C3, 2 seats)
- Engine: [Lycoming 0-350 series](https://openairdocs.org/engine/lycoming-0-350-series) (registry code 41512)
- Data sheets: [TCDS TC 227](https://openairdocs.org/tcds/TC%20227) (Textron Lycoming AVCO Corporation) (OpenAirDocs)
- Serial number: 2020/416
- Year built: 1954
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: June 18, 1996
- Certificate issued: March 15, 2021
- Expires: March 31, 2028
- Mode S code: A080EE
- Registered owner: [Trautmann Wolf H O](https://openairdocs.org/faa-owner/TRAUTMANN%20WOLF%20H%20O)
- Location: [Battle Ground, WA](https://openairdocs.org/faa-place/WA/Battle%20Ground)
- Owner type: Individual
- Owner's area on the map: 45.8058° N, 122.5108° W: Placed by OpenAirDocs at the center of ZIP code 98604, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=131WT
- Page: https://openairdocs.org/aircraft/N131WT

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 Lycoming 0-350 model are included.

## ADs that may apply (OpenAirDocs): 4 in force

### Matched by airframe (Trautmann Wolf H O CASA 1.131-E)

None in force.

### Matched by engine (Lycoming 0-350 series)

- [AD 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012
- [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004
- [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991
- [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N131WT.

## FAA accident and incident reports

None matched to N131WT.

## 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) (2)

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 engine (Lycoming 0-350 series)

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc

## Related

- Other Trautmann Wolf H O CASA 1.131-E aircraft: https://openairdocs.org/model/trautmann-wolf-h-o-casa-1-131-e/aircraft.md
- The Lycoming 0-350 series engine: https://openairdocs.org/engine/lycoming-0-350-series.md

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