# N21BR: 1978 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: [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: 3121 - Year built: 1978 - Type: Glider - Engine type: None - Airworthiness: Standard, utility - Airworthiness date: December 13, 1999 - Certificate issued: November 25, 2013 - Expires: November 30, 2029 - Mode S code: A1B752 - Registered owner: [Piedmont Soaring Society](https://openairdocs.org/faa-owner/PIEDMONT%20SOARING%20SOCIETY) - Location: [Clemmons, NC](https://openairdocs.org/faa-place/NC/Clemmons) - Owner type: Corporation - Owner's area on the map: 36.0132° N, 80.3776° W: Placed by OpenAirDocs at the center of ZIP code 27012, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21BR - Page: https://openairdocs.org/aircraft/N21BR 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 (Amateur-built UNKNOWN ENG) 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 None matched to N21BR. ## NTSB investigations on N21BR not matched to an aircraft (1) 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 MIA84LA087](https://openairdocs.org/ntsb/MIA84LA087), Feb 18, 1984: Beech B-58 (N21BR), Tallahassee, FL, substantial damage ## FAA accident and incident reports None matched to N21BR. ## Reports on N21BR not matched to an aircraft (1) They name N21BR, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Accident 19840218003949A](https://openairdocs.org/incident/19840218003949A), Feb 18, 1984: Beech 58 (N21BR), Tallahassee, FL, Substantial damage. Landing gear actuating rod failed. Unable to extend nose gear and left main. Landed on right main gear. ## 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 Flugzeugbau G103 TWIN ASTIR aircraft: https://openairdocs.org/model/burkhart-grob-flugzeugbau-g103-twin-astir/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.