# N924BG: Burkhart Grob G-103A TWIN II ACRO - Status: Valid registration - Airframe: [Burkhart Grob G-103A TWIN II ACRO](https://openairdocs.org/model/burkhart-grob-g-103a-twin-ii-acro) (registry code 1660206, 2 seats) - Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) - Data sheets: [TCDS G39EU](https://openairdocs.org/tcds/G39EU) (Fiberglas-Technik Rudolf Lindner GmbH & Co. KG) (OpenAirDocs) - Serial number: 34038-K-269 - Type: Glider - Engine type: None - Airworthiness: Standard, glider - Airworthiness date: January 16, 1986 - Certificate issued: September 15, 2000 - Expires: May 31, 2028 - Mode S code: ACCD26 - Registered owner: [Philadelphia Glider Council](https://openairdocs.org/faa-owner/PHILADELPHIA%20GLIDER%20COUNCIL) - Location: [Hilltown, PA](https://openairdocs.org/faa-place/PA/Hilltown) - Owner type: Corporation - Owner's area on the map: 40.3243° N, 75.2409° W: Placed by OpenAirDocs at the center of ZIP code 18927, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=924BG - Page: https://openairdocs.org/aircraft/N924BG From the FAA registry file of October 27, 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. ## NTSB investigations None matched to N924BG. ## FAA accident and incident reports (1) 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 20180707009339I](https://openairdocs.org/incident/20180707009339I), Jul 7, 2018: Burkhart Grob G-103A TWIN II ACRO (N924BG), Hilltown, PA, Minor damage. Aircraft was lined up on rwy tow plane began takeoff roll but glider drifted to the right and wingtip caught on tall grass on side of runway. Glider pilot… ## ADs that may apply (OpenAirDocs): 16 in force ### Matched by airframe (Burkhart Grob G-103A TWIN II 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 2015-22-04](https://openairdocs.org/ad/2015-22-04): Flight Controls · Fiberglas-Technik Rudolf Lindner G103 Twin Astir, G103 Twin II and G103A Twin II Acro. Effective Dec 4, 2015 - [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 99-20-11](https://openairdocs.org/ad/99-20-11): Fastening Nut At Rear Control Stick · Burkhart Grob Luft-Und G103 Twin II and G103A Twin II Acro. Effective Oct 21, 1999 - [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 - [AD 91-02-04](https://openairdocs.org/ad/91-02-04): Aileron Control System · Burkhart Grob Luft-Und G103 Twin Astir, G103 Twin II and G103A Twin II Acro. Effective Feb 8, 1991 - [AD 90-02-09](https://openairdocs.org/ad/90-02-09): Wing Spar Spigots · Burkhart Grob Luft-Und G103 Twin Astir, G103 Twin II and G103A Twin II Acro. Effective Feb 5, 1990 - [AD 89-08-02](https://openairdocs.org/ad/89-08-02): Control Systems · Burkhart Grob Luft-Und G103 Twin II and G103A Twin II Acro. Effective Apr 27, 1989 - [AD 88-12-08](https://openairdocs.org/ad/88-12-08): Tow-Hook Knob · Burkhart Grob Luft-Und G103 Twin Astir, G103 Twin II and G103A Twin II Acro. Effective Jun 9, 1988 - [AD 87-25-10](https://openairdocs.org/ad/87-25-10): Rudder Lever · Burkhart Grob Luft-Und G103 Twin II and G103A Twin II Acro. Effective Apr 15, 1988 - [AD 86-17-08](https://openairdocs.org/ad/86-17-08): Airbrake Pivot Lever Stop Pad · Burkhart Grob Luft-Und G103 Twin II and G103A Twin II Acro. Effective Sep 10, 1986 - [AD 86-16-02](https://openairdocs.org/ad/86-16-02): Inspect Airbrake Operating Lever · Burkhart Grob Luft-Und G103 Twin II and G103A Twin II Acro. Effective Aug 8, 1986 ### Matched by engine (Amateur-built UNKNOWN ENG) 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 ## 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 G-103A TWIN II ACRO aircraft: https://openairdocs.org/model/burkhart-grob-g-103a-twin-ii-acro/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.