# N23SG: 1991 Schempp-Hirth DISCUS CS

- Status: Valid registration
- Airframe: [Schempp-Hirth DISCUS CS](https://openairdocs.org/model/schempp-hirth-discus-cs) (registry code 38019VS, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: 052-CS
- Year built: 1991
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, exhibition
- Airworthiness date: March 16, 1992
- Certificate issued: September 7, 2011
- Expires: September 30, 2027
- Mode S code: A207BE
- Registered owner: [Soaring Society Of Boulder Inc](https://openairdocs.org/faa-owner/SOARING%20SOCIETY%20OF%20BOULDER%20INC)
- Location: [Boulder, CO](https://openairdocs.org/faa-place/CO/Boulder)
- Owner type: Corporation
- Owner's area on the map: 40.0244° N, 105.2513° W: Placed by OpenAirDocs: center of Boulder, CO, 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=23SG
- Page: https://openairdocs.org/aircraft/N23SG

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 (Schempp-Hirth DISCUS CS)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory) (1 in force)

- [SAIB CE-03-59R1](https://openairdocs.org/saib/CE-03-59R1): . Issued Dec 2, 2003
- [SAIB CE-03-59](https://openairdocs.org/saib/CE-03-59) (historical): . Issued Sep 26, 2003

## NTSB investigations

None matched to N23SG.

## FAA accident and incident reports

None matched to N23SG.

## 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 Schempp-Hirth DISCUS CS aircraft: https://openairdocs.org/model/schempp-hirth-discus-cs/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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