# N31BL: 2016 Jonker Sailplanes JS3

- Status: Valid registration
- Airframe: [Jonker Sailplanes JS3](https://openairdocs.org/model/jonker-sailplanes-js3) (registry code 05637Y4, 1 seats)
- Engine: [M&D Flugze MD-TJ42](https://openairdocs.org/engine/m-d-flugze-md-tj42) (registry code 45010)
- Serial number: 03-001
- Year built: 2016
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, racing, exhibition
- Airworthiness date: February 11, 2019
- Certificate issued: January 20, 2021
- Expires: January 31, 2028
- Mode S code: A3449C
- Registered owner: [Butler Charles R III](https://openairdocs.org/faa-owner/BUTLER%20CHARLES%20R%20III)
- Location: [Mobile, AL](https://openairdocs.org/faa-place/AL/Mobile)
- Owner type: Individual
- Owner's area on the map: 30.6819° N, 88.2997° W: Placed by OpenAirDocs at the center of ZIP code 36608, 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=31BL
- Page: https://openairdocs.org/aircraft/N31BL

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 (Jonker Sailplanes JS3)

None in force.

### Matched by engine (M&D Flugze MD-TJ42)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N31BL.

## FAA accident and incident reports

None matched to N31BL.

## 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.

## Earlier aircraft with N31BL

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N31BL before.

- [Cancelled 2012-09-06](https://openairdocs.org/deregistered/N31BL-2012-09-06): Leak Bob AVID FLYER, S/N 31, built 1984. Registration pending, canceled. Owner: [Liberal, KS](https://openairdocs.org/faa-place/KS/Liberal)
- [Cancelled 1981-03-12](https://openairdocs.org/deregistered/N31BL-1981-03-12): Bell 206B, S/N 1290, built 1974. Exported to Canada. Owner: [Crescent Airways Inc](https://openairdocs.org/faa-owner/CRESCENT%20AIRWAYS%20INC), [Hollywood, FL](https://openairdocs.org/faa-place/FL/Hollywood)

## Related

- Other Jonker Sailplanes JS3 aircraft: https://openairdocs.org/model/jonker-sailplanes-js3/aircraft.md
- The M&D Flugze MD-TJ42 engine: https://openairdocs.org/engine/m-d-flugze-md-tj42.md

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