# N787SF: Burkhart Grob G103C TWIN III ACRO - Status: Valid registration - Airframe: [Burkhart Grob G103C TWIN III ACRO](https://openairdocs.org/model/burkhart-grob-g103c-twin-iii-acro) (registry code 1660207, 2 seats) - Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000) - Data sheets: [TCDS G39EU](https://openairdocs.org/tcds/G39EU) (Fiberglas-Technik Rudolf Lindner GmbH & Co. KG) (OpenAirDocs) - Serial number: 34118 - Type: Glider - Engine type: None - Airworthiness: Standard, glider - Airworthiness date: February 26, 1991 - Certificate issued: May 12, 2026 - Expires: May 31, 2033 - Mode S code: AAAC1D - Registered owner: [Soar Hawaii Foundation](https://openairdocs.org/faa-owner/SOAR%20HAWAII%20FOUNDATION) - Location: [Waialua, HI](https://openairdocs.org/faa-place/HI/Waialua) - Owner type: Corporation - Owner's area on the map: 21.5636° N, 158.1851° W: Placed by OpenAirDocs at the center of ZIP code 96791, 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=787SF - Page: https://openairdocs.org/aircraft/N787SF 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): 7 in force ### Matched by airframe (Burkhart Grob G103C TWIN III ACRO) - [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 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 2003-19-14 R2](https://openairdocs.org/ad/2003-19-14-R2): Airspeed indicators · Burkhart Grob Luft-Und G103 Twin Astir, G103A Twin II Acro and G103C Twin III Acro. Effective Nov 30, 2005 - [AD 97-08-06 R1](https://openairdocs.org/ad/97-08-06-R1): Quick Connectors · Alexander Schleicher AS-K 13, AS 12, ASK 21 and 39 more. Effective Aug 1, 1997 - [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 2003-19-14 R1](https://openairdocs.org/ad/2003-19-14-R1) (historical): Structural Integrity of Fuselage · Burkhart Grob Luft-Und G103 Twin Astir, G103A Twin II Acro and G103C Twin III Acro. Effective Aug 12, 2004 - [AD 2004-08-13](https://openairdocs.org/ad/2004-08-13) (historical): Center of gravity release hook attachment brackets · Burkhart Grob Luft-Und G103 Twin Astir, G103 Twin II, G103A Twin II Acro and 1 more. Effective Jun 4, 2004 ## Information bulletins (advisory) (2 in force) - [SAIB CE-08-01](https://openairdocs.org/saib/CE-08-01): Fuselage, Wing, & Stabilizer Structure. Issued Oct 18, 2007 - [SAIB CE-06-49](https://openairdocs.org/saib/CE-06-49): . Issued Jun 21, 2006 ## NTSB investigations None matched to N787SF. ## FAA accident and incident reports (3) 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. - [Incident 19970331009629I](https://openairdocs.org/incident/19970331009629I), Mar 31, 1997: Grob G103CTWINIII (N787SF), Mokuleia, HI, Minor damage. Narrative: during landing tuchdown, glider started porpoising. Pilot applied wrong control inputs and damaged forward wheel well housing. Discussed pilots… - [Incident 19921215055439I](https://openairdocs.org/incident/19921215055439I), Dec 15, 1992: Grob G103ATWIN2 (N787SF), Mokuleia, HI, Minor damage. Pilot made a hard landing with glider and broke off tail wheel. - [Incident 19920523016129I](https://openairdocs.org/incident/19920523016129I), May 23, 1992: Grob G103ATWINII (N787SF), Mokuleia, HI, Minor damage. Glider pilot over rotated during landing flare. Tail wheel hit hard on runway. Damaged tail boom. ## 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 N787SF The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N787SF before. - [Cancelled 1989-10-10](https://openairdocs.org/deregistered/N787SF-1989-10-10): Aero Commander 680, S/N 680-365-52. Exported to Mexico. Owner: [Latah Construction Inc](https://openairdocs.org/faa-owner/LATAH%20CONSTRUCTION%20INC), [Hayden Lake, ID](https://openairdocs.org/faa-place/ID/Hayden%20Lake) ## Related - Other Burkhart Grob G103C TWIN III ACRO aircraft: https://openairdocs.org/model/burkhart-grob-g103c-twin-iii-acro/aircraft.md - The NONE engine: https://openairdocs.org/engine/none.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.