# N4101M: 1983 Burkhart Grob Flugzeugbau G103 TWIN ASTIR - Status: Valid registration - Airframe: [Burkhart Grob Flugzeugbau G103 TWIN ASTIR](https://openairdocs.org/model/burkhart-grob-flugzeugbau-g103-twin-astir) (registry code 1660202, 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: 3796 - Year built: 1983 - Type: Glider - Engine type: None - Airworthiness: Standard, glider - Airworthiness date: June 21, 1983 - Certificate issued: November 5, 2019 - Expires: November 30, 2029 - Mode S code: A4D6A7 - Registered owner: [Sandhill Soaring Club Inc](https://openairdocs.org/faa-owner/SANDHILL%20SOARING%20CLUB%20INC) - Location: [Brighton, MI](https://openairdocs.org/faa-place/MI/Brighton) - Owner type: Corporation - Owner's area on the map: 42.5059° N, 83.7812° W: Placed by OpenAirDocs at the center of ZIP code 48116, 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=4101M - Page: https://openairdocs.org/aircraft/N4101M 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): 13 in force ### Matched by airframe (Burkhart Grob Flugzeugbau G103 TWIN ASTIR) - [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 2005-26-14](https://openairdocs.org/ad/2005-26-14): Elevator lever. · Burkhart Grob Luft-Und G103 Twin Astir. Effective Feb 6, 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 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 97-24-10](https://openairdocs.org/ad/97-24-10): Airbrake Over-Center Lever · Burkhart Grob Luft-Und G103 Twin Astir. Effective Dec 29, 1997 - [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 95-13-09](https://openairdocs.org/ad/95-13-09): Elevator And Rudder Hinge · Burkhart Grob Luft-Und G103 Twin Astir, G102 ASTIR CS, G102 CLUB ASTIR IIIb and 1 more. Effective Aug 15, 1995 - [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 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 86-18-09](https://openairdocs.org/ad/86-18-09): Rudder Control Lever · Burkhart Grob Luft-Und G103 Twin Astir. Effective Sep 15, 1986 ### Matched by engine (NONE) None in force. ### Historical (superseded or no longer in force) - [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) (1 in force) - [SAIB CE-08-01](https://openairdocs.org/saib/CE-08-01): Fuselage, Wing, & Stabilizer Structure. Issued Oct 18, 2007 ## NTSB investigations (2) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN26LA233](https://openairdocs.org/ntsb/CEN26LA233), Jun 3, 2026: Burkhart Grob Flugzeugbau G103 Twin Astir (N4101M), Gregory, MI, substantial damage. Probable cause: The flight instructor’s improper planning during the simulated aborted launch which resulted in a touchdown on unsuitable terrain. - [NTSB CHI93LA230](https://openairdocs.org/ntsb/CHI93LA230), Jun 26, 1993: Burkhart Grob G103 (N4101M), Ionia, MI, substantial damage. Probable cause: THE PILOT IN COMMAND'S FAILURE TO MAINTAIN THE PROPER GLIDEPATH. ## FAA accident and incident reports (2) 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. - [Accident 20260603005999A](https://openairdocs.org/incident/20260603005999A), Jun 3, 2026: Grob 103 (N4101M), Gregory, MI, Substantial damage. The flight was a glider instructional flight, where a student was receiving instruction to prepare for a practical test. The instructor wanted to simulate a… - [Accident 19930626020489A](https://openairdocs.org/incident/19930626020489A), Jun 26, 1993: Grob G103ATWIN2 (N4101M), Ionia, MI, Substantial damage. Landed short off runway in tall grass to avoid another glider on runway awaiting a tow. ## 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 N4101M The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4101M before. - [Cancelled 1983-03-22](https://openairdocs.org/deregistered/N4101M-1983-03-22): Lockheed 382C, S/N 4845, built 1980. Exported to Saudi Arabia. Owner: [Lockheed Corp](https://openairdocs.org/faa-owner/LOCKHEED%20CORP), [Marietta, GA](https://openairdocs.org/faa-place/GA/Marietta) - [Cancelled 1956-03-22](https://openairdocs.org/deregistered/N4101M-1956-03-22): Piper PA-12, S/N 12-2996. Owner: [Roy E Bedingfield](https://openairdocs.org/faa-owner/ROY%20E%20BEDINGFIELD), [Dublin, GA](https://openairdocs.org/faa-place/GA/Dublin) ## Related - Other Burkhart Grob Flugzeugbau G103 TWIN ASTIR aircraft: https://openairdocs.org/model/burkhart-grob-flugzeugbau-g103-twin-astir/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.