# N108K: 2017 Jonker Sailplanes JS1C 18/21

- Status: Valid registration
- Airframe: [Jonker Sailplanes JS1C 18/21](https://openairdocs.org/model/jonker-sailplanes-js1c-18-21) (registry code 05636G4, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 1C-117
- Year built: 2017
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, racing
- Airworthiness date: June 22, 2017
- Certificate issued: December 21, 2018
- Expires: December 31, 2028
- Mode S code: A0234D
- Registered owner: [Mockler David R](https://openairdocs.org/faa-owner/MOCKLER%20DAVID%20R)
- Location: [Azle, TX](https://openairdocs.org/faa-place/TX/Azle)
- Owner type: Individual
- Owner's area on the map: 32.9002° N, 97.5612° W: Placed by OpenAirDocs at the center of ZIP code 76020, 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=108K
- Page: https://openairdocs.org/aircraft/N108K

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 JS1C 18/21)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N108K.

## FAA accident and incident reports

None matched to N108K.

## 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 N108K

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N108K before.

- [Cancelled 2011-07-01](https://openairdocs.org/deregistered/N108K-2011-07-01): Beech D18S, S/N A-88, built 1946. Sale reported, canceled. Owner: [Casa Grande, AZ](https://openairdocs.org/faa-place/AZ/Casa%20Grande)

## Related

- Other Jonker Sailplanes JS1C 18/21 aircraft: https://openairdocs.org/model/jonker-sailplanes-js1c-18-21/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.