# N493SL: 1992 Burkhart Grob G103C TWIN III SL

- Status: Valid registration
- Airframe: [Burkhart Grob G103C TWIN III SL](https://openairdocs.org/model/burkhart-grob-g103c-twin-iii-sl) (registry code 1660109, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G57EU](https://openairdocs.org/tcds/G57EU) (Fiberglas-Technik Rudolf Lindner GmbH & Co. KG) (OpenAirDocs)
- Serial number: 35027
- Year built: 1992
- Type: Glider
- Engine type: None
- Airworthiness: Standard, utility
- Airworthiness date: May 20, 1993
- Certificate issued: May 17, 2017
- Expires: May 31, 2027
- Mode S code: A61CD8
- Registered owner: [White Sands Soaring Foundation (Wssf)](https://openairdocs.org/faa-owner/WHITE%20SANDS%20SOARING%20FOUNDATION%20(WSSF))
- Location: [Alamogordo, NM](https://openairdocs.org/faa-place/NM/Alamogordo)
- Owner type: Corporation
- Owner's area on the map: 32.7361° N, 106.0394° W: Placed by OpenAirDocs at the center of ZIP code 88310, within about 14 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=493SL
- Page: https://openairdocs.org/aircraft/N493SL

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): 6 in force

### Matched by airframe (Burkhart Grob G103C TWIN III SL)

- [AD 2025-20-07](https://openairdocs.org/ad/2025-20-07): Rudder Control System · Fiberglas-Technik Rudolf Lindner G103 Twin II, G103A Twin II Acro, G103C Twin III Acro and 1 more. Effective Oct 17, 2025
- [AD 2022-03-08](https://openairdocs.org/ad/2022-03-08): Elevator Control System · Fiberglas-Technik Rudolf Lindner G102 ASTIR CS, G103 Twin Astir, G103 Twin II and 3 more. Effective Mar 17, 2022
- [AD 2009-04-08](https://openairdocs.org/ad/2009-04-08): Bolt torque · Burkhart Grob Luft-Und G 103 C Twin III SL, G103 Twin II, G103A Twin II Acro and 1 more. Effective Mar 31, 2009
- [AD 2006-08-01](https://openairdocs.org/ad/2006-08-01): Propeller bearing and pulley wheel · Burkhart Grob Luft-Und G 103 C Twin III SL. Effective May 9, 2006
- [AD 2005-26-12](https://openairdocs.org/ad/2005-26-12): Center of gravity (CG) release hook attachment brackets. · Burkhart Grob Luft-Und G 103 C Twin III SL, G103 Twin Astir, G103 Twin II and 2 more. Effective Feb 6, 2006
- [AD 94-17-06](https://openairdocs.org/ad/94-17-06): Airbrake Stops Inspection · Burkhart Grob Luft-Und G 103 C Twin III SL, G103 Twin Astir, G103 Twin II and 8 more. Effective Sep 30, 1994

### Matched by engine (NONE)

None in force.

### Historical (superseded or no longer in force)

- [AD 2014-15-02](https://openairdocs.org/ad/2014-15-02) (historical): Flight Controls · Burkhart Grob Luft-Und G 103 C Twin III SL, G103 Twin II, G103A Twin II Acro and 4 more. Effective Aug 27, 2014
- [AD 97-24-09](https://openairdocs.org/ad/97-24-09) (historical): Propeller Bearing And Upper Pulley Wheel · Burkhart Grob Luft-Und G 103 C Twin III SL. Effective Jan 5, 1998

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N493SL.

## FAA accident and incident reports

None matched to N493SL.

## 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 Burkhart Grob G103C TWIN III SL aircraft: https://openairdocs.org/model/burkhart-grob-g103c-twin-iii-sl/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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