# N440BS: 2012 Squires Robert E THATCHER CX4

- Status: Valid registration
- Airframe: [Squires Robert E THATCHER CX4](https://openairdocs.org/model/squires-robert-e-thatcher-cx4) (registry code 05633T2, 1 seats)
- Engine: [Greatplain GREATPLAIN VW](https://openairdocs.org/engine/greatplain-greatplain-vw) (registry code 31500)
- Serial number: 440
- Year built: 2012
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: April 26, 2016
- Certificate issued: February 14, 2024
- Expires: February 28, 2031
- Mode S code: A54AC7
- Registered owner: [Wagner Jeffrey C](https://openairdocs.org/faa-owner/WAGNER%20JEFFREY%20C)
- Location: [Paris, ID](https://openairdocs.org/faa-place/ID/Paris)
- Owner type: Individual
- Owner's area on the map: 42.2204° N, 111.4051° W: Placed by OpenAirDocs at the center of ZIP code 83261, 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=440BS
- Page: https://openairdocs.org/aircraft/N440BS

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.

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

### Matched by airframe (Squires Robert E THATCHER CX4)

None in force.

### Matched by engine (Greatplain GREATPLAIN VW)

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 WPR24LA143](https://openairdocs.org/ntsb/WPR24LA143), Apr 30, 2024: Thatcher CX4 (N440BS), Rowley, UT, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the takeoff roll.

## 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 20240430003949A](https://openairdocs.org/incident/20240430003949A), Apr 30, 2024: Squires Robert E THATCHER CX4 (N440BS), Bermester, UT, Substantial damage. On 30 April 2024, [privacy data omitted] landed on rowley road in burmester, UT after experiencing engine idle roughness. The pilot successfully landed the…

## 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 Squires Robert E THATCHER CX4 aircraft: https://openairdocs.org/model/squires-robert-e-thatcher-cx4/aircraft.md
- The Greatplain GREATPLAIN VW engine: https://openairdocs.org/engine/greatplain-greatplain-vw.md

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