The Aviation DataBase®
Complete Aviation Regulatory Library
Sept. 11 Sept. 11
DataBases updated: Mar 9th, 2026
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Drawings
NameRevisionLangSubjectDate
en Astir CS5/3/1974
en Astir CS 772/11/1977
en Astir CS Jeans4/1/1977
en Twin II12/14/1979
en Twin Astir5/10/1977
en Twin III10/23/1985
en Twin III W2/6/1998
en Speed Astir II3/30/1979
Flight Manuals
NameRevisionLangSubjectDate
9 en Astir CS Flight Manual11/28/2005
Maintenance Manual Temporary Revisions
NameRevisionLangSubjectDate
en G115C/D: Introduces an Examination Lip Seal on Air Flap in Air Filter Box10/23/2009
en G115B: Introduces an Examination Lip Seal on Air Flap in Air Filter Box10/22/2009
en G115: Introduces an Examination Lip Seal on Air Flap in Air Filter Box10/22/2009
en G115: Introduces a Life Limit of 8000 Landings for Nose Wheel Fork 115C-5200.147/27/2009
en G115C/D: Introduces a Life Limit of 8000 Landings for Nose Wheel Fork 115C-5200.147/27/2009
en G115C/D: Introduces Procedures to Examine and Replace Flap in Air Filter Box10/23/2009
en G115: Introduces Procedures to Examine and Replace Flap in Air Filter Box10/22/2009
en G115B: Introduces Procedures to Examine and Replace Flap in Air Filter Box10/22/2009
Maintenance Manuals
NameRevisionLangSubjectDate
10 en G103C Twin III SL12/15/2006
Pilot's Operating Handbooks
NameRevisionLangSubjectDate
6 en G103C Twin III SL7/20/2009
Publication Indexes
NameRevisionLangSubjectDate
en G1022/4/2009
en G1032/4/2009
en G103C Twin III SL9/18/2009
en G1044/22/2010
en G1096/5/2024
en G1156/5/2024
en G1203/11/2025
en G1201/9/2025
en G1206/5/2024
en G120TP5/15/2025
en G120TP7/2/2025
en G120TP4/28/2025
en G 25004/18/2017
en All Grob10/29/2009
en G103C Twin III SL7/27/2009
en G1095/25/2011
en G11511/9/2021
en G12011/10/2021
en G120TP9/9/2024
en G120TP1/9/2025
en All Grob10/3/2023
Repair Instructions
NameRevisionLangSubjectDate
en Flight Controls -Alternative Hinge Safety Method10/14/2014
en Exchange of Bolt in Tail Mounting Bracket9/16/2016
1 en Fuselage Structure & Rudder - Repair of Hinge Bracket Attachment Point - Rudder & Vertical Stabiliser6/2/2021
1 en Wings Trailing Edge Trailing Edge Devices - Repair of Hinge Bracket Attachment Points - Flaps6/2/2021
1 en Ailerons & Elevons - Repair of Hinge Bracket Attachment Points - Aileron6/2/2021
1 en Stabilisers - Repair of Hinge Bracket Attachment Points - Elevator & Horizontal Stabilizer6/2/2021
1 en Wings - Repair of Aileron & Flap Bellcrank Attachment Points6/2/2021
en Standard Practices and Structures - General - Approved Repair Instructions according to Part 21, Subpart M5/14/2009
1 en Standard Practices and Structures - General - Approved Repair Instructions according to Part 21, Subpart M9/19/2014
2 en Standard Practices and Structures - General - Approved Repair Instructions according to Part 21, Subpart M1/15/2015
3 en Standard Practices and Structures - General - Approved Repair Instructions according to Part 21, Subpart M9/20/2018
en Standard Practices and Structures - General - Repair of Engine Baffles11/5/2009
16 en Release of Production Documents for Repair and Overhaul9/11/2020
en Main Gear - Modification of Main Wheel Axles9/30/2014
Service Bulletins
NameRevisionLangSubjectDate
Iss2 en 25007/1/1994
de Increase of Maximum Weight from 360 kp to 370 kp; Hook Release; Airfoil of Elevator; Service Shutter in Fuselage for Control Connections9/12/1975
de Changeable Trim Ballast2/14/1978
de Tow Hook (Additional Equipment for France)3/26/1978
de Changeable Trim Ballast11/26/1978
de Changeable Trim Ballast for Light Pilots in Front Seat2/28/1978
de Wire Protector, Restricted Vne, Changed Placards, Amendments for Manual (Special Equipment for Export to Netherlands)5/2/1978
de Modification of Canopy Jettison & Tow Hook (Special Equipment for Export to France)3/19/1979
de Exchange of Airbrake Idler Levers Left and Right 103-4123 and 103-4124 in Dive Brake System of Wing5/2/1979
en Exchange of Airbrake Idler Levers Left and Right 103-4123 and 103-4124 in Dive Brake System of Wing5/2/1979
de Installation of Pilot's Removable Trim Weights7/18/1979
de Change in Attachment of Center of Gravity Coupling6/16/1976
de Changeable Trim Ballast11/26/1978
2 de Additional Equipment for France (Tow Hook)6/13/1980
de Exchange of Canopy Hinge1/20/1983
en Exchange of Canopy Hinge1/20/1983
1 en Inspection of All Elevator Hinges6/4/1991
1 de Inspection of All Elevator Hinges6/4/1991
de Inspection and Replacement of Spar Spigot Assemblies7/12/1991
en Inspection and Replacement of Spar Spigot Assemblies7/12/1991
en Inspection and Replacement of Spar Spigot Assemblies10/11/1990
2 de Extension of Service Life 12/6/1995
2 en Extension of Service Life (Install Inst)12/6/1995
en Inspection of Airbrake Stops9/14/1992
de Inspection of Airbrake Stops9/14/1992
de Securing of L'Hotellier Quick Release Attachments A. Installation of WEDEKIND-SICHERUNG B. Installation of Securing Socket S267/1/1994
en Securing of L'Hotellier Quick Release Attachments A. Installation of WEDEKIND-SICHERUNG B. Installation of Securing Socket S267/1/1994
de Exchange of Elevator Lever
en Exchange of Elevator Lever9/15/1994
en Increase in Mass and Static Residual Moment Limits for Elevator12/4/1994
en Increase in Mass and Static Residual Moment Limits for Elevator12/4/1994
en Mandatory Flight Controls4/27/2007
de Mandatory Flight Controls4/27/2007
de Mandatory Increase of Mass Balance10/9/2001
en Mandatory Increase of Mass Balance10/9/2001
2 en Mandatory Increase of Mass Balance11/22/2001
2 de Mandatory Increase of Mass Balance11/22/2001
3 en Mandatory Increase of Mass Balance12/4/2002
3 en Mandatory Increase of Mass Balance4/18/2002
3 de Mandatory Increase of Mass Balance4/18/2002
en Mandatory Modification of Canopy Jettison System6/13/2003
2 en Mandatory Modification of Canopy Jettison System8/13/2003
2 de Mandatory Modification of Canopy Jettison System8/13/2003
en Mandatory Inspection of Elevator Attachment2/12/2004
de Mandatory Inspection of Elevator Attachment2/12/2004
1 en Mandatory Inspection of Elevator Attachment11/28/2005
1 de Mandatory Inspection of Elevator Attachment11/28/2005
2 en Mandatory Inspection of Elevator Attachment6/8/2006
2 de Mandatory Inspection of Elevator Attachment6/8/2006
de Conversion of Motor Glider Astir CS Top/Astir CS 77 Top/Astir CS Jeans Top to Glider4/8/2005
en Conversion of Motor Glider Astir CS Top/Astir CS 77 Top/Astir CS Jeans Top to Glider4/8/2005
en-de Information About Revision Status of Flight Manual and Maintenance Manual10/15/2007
de Exceptional Regulations for Markings of Aircraft2/4/1980
de Special Equipment for Acrobatic Flight7/10/1980
de Special Equipment of Grob G103 "Twin II" for Export to Netherlands9/29/1980
de Special Equipment of Grob G103 "Twin II" for Export to France9/30/1980
de Marks to Control Correct Mounting of Elevator10/1/1980
en Marks to Control Correct Mounting of Elevator10/1/1980
de Exchange of Hotellier Quick-Connectors in Flight Control Rods5/4/1981
de Exchange of Trim Rod in Elevator1/12/1981
en U.S. Airworthiness Certification of "Prematurely" Exported Sailplanes3/12/1982
de Increase of Service Time9/30/1981
de Installation of a Larger Elevator11/19/1981
de Change of Speed Limits12/10/1981
de Special Equipment for Grob G103 "Twin II" & G103 A "Twin II Acro" for Export to Sweden2/4/1982
de Stronger Weak Links for Tow Cables of Twin Astir with Trainer & of Grob G103 "Twin II" with "Acro"4/27/1982
de Check & Change of Carriage in Front Pedal Unit of Grob G103 "Twin II" with "Acro"6/22/1982
de Deviations from German Data Sheet No. 315 for Italian Registered Aircraft9/6/1982
de Exchange of Twin Astir & Twin Astir Trainer Wings for Repair with Wings of Grob G103 A "Twin II Acro"1/17/1983
en U.S. Airworthiness Certification of "Prematurely" Exported Sailplanes4/2/1984
de Modification for Aircraft with Certification in Austria12/20/1983
2 de Modification for Aircraft with Certification in Austria2/14/1985
de Installation of Spin Fins for Training (Australia)1/16/1984
de Increase of Service Time2/28/1984
de Special Equipment Grob G103 A "Twin II Acro" for Export to Netherlands2/29/1984
de Inspection & Exchange of Front Airbrake Operating Lever 103B-427010/1/1985
de Inspection & Exchange of Parallel Lever II 103-4320.05 at Rear Pedal Support of Rudder Control10/1/1985
de Inspection & Exchange of Stop Pad 103B-4721.11 at Outer Pivoted Levers of Airbrakes in Wing10/7/1985
en Checking and Relocating Aft Actuator Knob of Tow Hooks6/12/1987
de Checking and Relocating Aft Actuator Knob of Tow Hooks6/12/1987
de Checking Rudder Lever 1038-4430 on Aft Stick Bulkhead 8/3/1987
en Checking Rudder Lever 1038-4430 on Aft Stick Bulkhead (Repair Inst R1, Repair Inst R2)8/3/1987
de Inspection and, if Necessary, Exchange of Elevator Push-Rod III (103A-4244) or Elevator Push-Rod IV (103A-4694) Respectively12/8/1987
en Inspection and, if Necessary, Exchange of Elevator Push-Rod III (103A-4244) or Elevator Push-Rod IV (103A-4694) Respectively12/8/1987
2 en Optional Removal of Winch Launching Hook3/3/1998
2 en Optional Removal of Winch Launching Hook3/3/1998
de Inspection & Exchange of Both End Spar Spigot Assemblies6/23/1988
en Inspection and Reinforcement of Welded parts in Flight Control System of Gliders Grob G103 Twin II and G103A Twin II Acro7/22/1988
de Inspection and Reinforcement of Welded parts in Flight Control System of Gliders Grob G103 Twin II and G103A Twin II Acro7/22/1988
en Exchange of Fixing Bolts of Aileron Connector at Distributor11/14/1988
de Exchange of Fixing Bolts of Aileron Connector at Distributor11/14/1988
1 en Exchange of Fixing Bolts of Aileron Connector at Distributor12/12/1989
1 de Exchange of Fixing Bolts of Aileron Connector at Distributor12/12/1989
de Installation of a Fold-Out Operating Handle on Airbrake Lever6/13/1989
en Revision 1 of Following Manuals: - Flight Manual (German Issue); - Maintenance Manual (German Issue); - Flight Manual (English Issue)7/18/1989
de Revision 1 of Following Manuals: - Flight Manual (German Issue); - Maintenance Manual (German Issue); - Flight Manual (English Issue)7/18/1989
en Substitution of Salving Guide and Spindle in Rudder Pedal Unit9/28/1989
de Substitution of Salving Guide and Spindle in Rudder Pedal Unit9/28/1989
en Revision 1 of Following Manuals: Maintenance Manual (English Issue); Revision 2 of Following Manuals: Flight Manual (German Issue), Maintenance Manual (German Issue), Flight Manual (English Issue)11/23/1989
de Revision 1 of Following Manuals: Maintenance Manual (English Issue); Revision 2 of Following Manuals: Flight Manual (German Issue), Maintenance Manual (German Issue), Flight Manual (English Issue)11/23/1989
en Extension of Service Life (Repair Inst)10/11/1991
2 en Extension of Service Life (Repair Inst)12/21/1995
2 de Extension of Service Life 12/21/1995
en Exchange of Airbrake Over-Centre Lever P/N 103-4123/41244/22/1992
2 en Exchange of Airbrake Over-Centre Lever P/N 103-4123/41241/20/1993
2 de Exchange of Airbrake Over-Centre Lever P/N 103-4123/41241/20/1993
de Inspection of Airbrake Stops9/14/1992
en Inspection of Airbrake Stops9/14/1992
en Optional Installation of a Disc Brake9/28/1992
de Optional Installation of a Disc Brake9/28/1992
en Inspection of Wheel Brake10/5/1992
de Inspection of Wheel Brake10/5/1992
en Installation of Canards for Spin Training1/14/1993
de Installation of Canards for Spin Training1/14/1993
2 en Installation of Canards for Spin Training2/14/1997
2 de Installation of Canards for Spin Training2/14/1997
en - Installation of a Manual Control for Rudder; - Installation of a Gate-Stop Device for Airbrake Operating Lever1/14/1993
de - Installation of a Manual Control for Rudder; - Installation of a Gate-Stop Device for Airbrake Operating Lever1/14/1993
de Extension of Operational Limitations5/18/1993
en Extension of Operational Limitations5/18/1993
en Modification of Airbrakes5/26/1993
en Revision of Maintenance Manual G103C TWIN III7/4/1994
de Revision of Maintenance Manual G103C TWIN III7/4/1994
en Securing of L'Hotellier Quick Release Attachments A. Installation of WEDEKIND-SICHERUNG; B. Installation of Securing Socket S267/1/1994
de Securing of L'Hotellier Quick Release Attachments A. Installation of WEDEKIND-SICHERUNG; B. Installation of Securing Socket S267/1/1994
en Modification of Wing-Fuselage Connecting Rods11/4/1996
de Modification of Wing-Fuselage Connecting Rods11/4/1996
en Inspection/Replacement of Knurled Nut at Rear Control Stick5/6/1999
de Inspection/Replacement of Knurled Nut at Rear Control Stick5/6/1999
2 en Inspection/Replacement of Knurled Nut at Rear Control Stick6/28/1999
2 de Inspection/Replacement of Knurled Nut at Rear Control Stick6/28/1999
de Mandatory C of G Release Hook1/21/2002
en Mandatory C of G Release Hook1/21/2002
2 en Mandatory C of G Release Hook3/9/2005
2 de Mandatory C of G Release Hook3/9/2005
en Alert Limitation of Operation5/29/2003
de Alert Limitation of Operation5/29/2003
2 en Alert Limitation of Operation6/2/2003
en Mandatory Revised Limits of Operation6/30/2003
de Mandatory Revised Limits of Operation6/30/2003
2 en Mandatory Revised Limits of Operation8/13/2003
2 de Mandatory Revised Limits of Operation8/13/2003
3 en Mandatory Revised Limits of Operation9/14/2004
3 de Mandatory Revised Limits of Operation9/14/2004
en Mandatory Limitations of Operation9/15/2003
de Mandatory Limitations of Operation9/15/2003
1 de Mandatory Limitations of Operation2/9/2006
1 en Mandatory Limitations of Operation2/9/2006
de Fuselage 10/16/2003
en Fuselage (Working Inst)10/16/2003
1 en Fuselage2/9/2006
1 de Fuselage2/9/2006
en Mandatory Flight Controls - Elevator2/20/2004
de Mandatory Flight Controls - Elevator2/20/2004
1 en Mandatory Flight Controls - Elevator12/20/2004
1 de Mandatory Flight Controls - Elevator12/20/2004
en Mandatory Information About Revision Status of Flight Manual and Maintenance Manual11/21/2005
de Mandatory Information About Revision Status of Flight Manual and Maintenance Manual11/21/2005
1 en-de Mandatory Information About Revision Status of Flight Manual and Maintenance Manual5/5/2006
de Flight Controls - Elevator1/24/2006
en Flight Controls - Elevator1/24/2006
de Wheels and Brakes3/23/2006
en Wheels and Brakes3/23/2006
en Mandatory Stabilizer, Rudder6/24/2006
de Mandatory Stabilizer, Rudder6/24/2006
en Mandatory Fuselage Structure, Stabilizer Structure, Wing Structure4/24/2007
1 en Mandatory Fuselage Structure, Stabilizer Structure, Wing Structure7/30/2007
1 de Mandatory Fuselage Structure, Stabilizer Structure, Wing Structure7/30/2007
en Mandatory Aileron Control, Elevator Control7/2/2007
de Mandatory Aileron Control, Elevator Control7/2/2007
de Mandatory Airbrake Control6/11/2008
1 en Mandatory Airbrake Control6/23/2008
de Inspection of Airbrake Stops9/14/1992
en Inspection of Airbrake Stops9/14/1992
en Mandatory Modification of Canopy Jettison System6/13/2003
2 de Mandatory Modification of Canopy Jettison System8/13/2003
2 en Mandatory Modification of Canopy Jettison System8/13/2003
en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual4/22/2010
de Mandatory Information about Revision Status of Flight Manual and Maintenance Manual4/22/2010
de Canopy Fasteners6/9/1980
en Marks to Control Correct Mounting of Elevator10/1/1980
de Marks to Control Correct Mounting of Elevator10/1/1980
en Inspection and Replacement of Spar Spigot Assemblies10/11/1990
en Inspection and Replacement of Spar Spigot Assemblies7/12/1991
de Inspection and Replacement of Spar Spigot Assemblies7/12/1991
en Extension of Service Life3/23/1998
de Extension of Service Life3/23/1998
2 en Adjustment of Flight Manual GROB G1091/19/1983
en Exchange of Sealing Piston in Fire Cock (Install Inst)7/10/1987
1 en Exchange of Sealing Piston in Fire Cock 9/1/1992
en Approved Installation of LIMBACH L 2400 EB 1.A Engine in Combination with MUHL-BAUER MTV-1-A/L 160-03 Propeller9/20/1989
en Inspection and Exchange of Two Inner Elevator Hinges11/9/1987
en Noise Reducing Exhaust System12/12/1989
1 en Extension of Service Life11/25/1991
1 de Extension of Service Life11/25/1991
en Inspection and, where Necessary, Replacement of Studs in Root Rib Stud Plate8/6/1990
en Approved Installation of L 2400 EB 1.AA Engine in Combination with the MTV-1-A/L 160-03 Propeller9/26/1990
en Installation of a Dampered Tailwheel6/1/1993
en Inspection of Exhaust System9/18/1992
en Inspection of the BENDIX-Magnetos at GROB 2500 Engine1/14/1992
2 en Inspection of the BENDIX-Magnetos at GROB 2500 Engine3/17/1992
en Inspection of Drain Holes in Elevator (Including Trim Tab)7/20/1992
de Inspection of Airbrake Stops9/14/1992
en Inspection of Airbrake Stops9/14/1992
en Improvement of Flutter Behavior of Grob G109 (Install Inst, Install Inst R1)7/8/1993
2 en Improvement of Flutter Behavior of Grob G109 (Install Inst R2)3/31/1995
en Main Undercarriage Legs Inspection1/4/1994
en Mandatory Installation of a Guide Jacket for Manifold Pressure Bowden Cable at Firewall9/2/2005
en Inspection of Engine Mounting Frame for Abraded Areas7/27/1995
2 en Use of Unleaded Fuel3/9/1998
en Mode-S - Transponder7/4/2005
de Tail Wheel Installation4/19/2004
en Mandatory DC - Generation10/10/2006
1 en Audio Integrating2/7/2011
de Mandatory Aileron Control, Elevator Control7/2/2007
en Mandatory Aileron Control, Elevator Control7/2/2007
en Wheels and Brakes2/8/2008
en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual6/29/2010
1 en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual4/1/2011
2 en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual11/16/2011
3 en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual3/23/2012
4 en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual5/15/2012
6 en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual7/26/2012
7 en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual5/2/2017
8 en Mandatory Information about Revision Status of Flight Manual and Maintenance Manual9/22/2021
en Mandatory Vertical Stabilizer - Inspection of Vertical Stabilizer Nose Plate for Corrosion (Repair Inst 817-009)11/24/2011
1 en Mandatory Vertical Stabilizer - Inspection of Vertical Stabilizer Nose Plate for Corrosion2/17/2015
en Mandatory Aileron - Increase of Maximum Mass11/25/2011
en Mandatory Vertical Stabilizer - Installation of an Access Panel (Repair Inst 817-010/1)11/24/2011
en Electrical Power - Alternative Toggle Switch10/7/2011
en Mandatory Airplane Flight Manual - Withdrawal of Service Bulletins TM817-7 and TM817-131/20/2012
en Mandatory Flight Controls/Rudder - Inspection of Rudder Pedals5/15/2012
1 en Mandatory Flight Controls/Elevator - Inspection of Elevator Rod7/13/2012
2 en Mandatory Flight Controls/Elevator - Inspection of Elevator Rod9/6/2012
en Mandatory Flight Compartment Furnishing - Inspection of the Seat Harness8/7/2012
en Independent Position Determining - Provisions to Install PowerFLARM4/3/2014
en Optional Retrofit of LED Lights7/11/2014
en Mandatory Elevator and Tab - New Limits for Trim Tab4/22/2016
en Mandatory Tail Gear - Inspection of Tail Mounting Bracket9/28/2016
en Optional Engine Installation Rotax 912iSc39/30/2021
en Alert Modification of Engine Mount Attachment6/3/2022
en Alternative Undercarriage Leg7/3/2023
en Oil Cooler & Oil Thermostat - Modified Oil-Cooler Bracket7/8/2024
de Revision of Flight and Maintenance Manual2/19/1992
en Revision of Flight and Maintenance Manual2/19/1992
2 de Revision of Flight and Maintenance Manual4/10/1992
2 en Revision of Flight and Maintenance Manual4/10/1992
de Inspection and, if Necessary, Modification of Auxiliary Battery Frame4/3/1992
en Inspection and, if Necessary, Modification of Auxiliary Battery Frame4/3/1992
en Exchange of Inner Main Wheel Fairing6/1/1992
de Exchange of Inner Main Wheel Fairing6/1/1992
de Inspection of Upper Pulley Wheel8/5/1992
en Inspection of Upper Pulley Wheel8/5/1992
en Exchange of Spiral Pin in Spindle Drive9/7/1992
de Exchange of Spiral Pin in Spindle Drive9/7/1992
en Check and Securing of Spiral Pins in Brake Disc of Propeller Brake9/17/1992
de Check and Securing of Spiral Pins in Brake Disc of Propeller Brake9/17/1992
en - Modification of Propeller Drive Unit and of Propeller Brake; - Revision of Flight and Maintenance Manual10/1/1992
de - Modification of Propeller Drive Unit and of Propeller Brake; - Revision of Flight and Maintenance Manual10/1/1992
de Inspection of Wheel Brake10/5/1992
en Inspection of Wheel Brake10/5/1992
de Modifications in Main Wheel Area11/16/1992
en Modifications in Main Wheel Area11/16/1992
en Installation of a Cable Guide at Exhaust System11/19/1992
de Installation of a Cable Guide at Exhaust System11/19/1992
de Inspection of Fuel Filters11/25/1992
en Inspection of Fuel Filters11/25/1992
de Installation of VHF-COM-Antenna BECKER Type 1A00512/23/1992
en Installation of VHF-COM-Antenna BECKER Type 1A00512/23/1992
en Exchange of Propeller Switch 25 KB1/8/1993
de Exchange of Propeller Switch 25 KB1/8/1993
en - Installation of a Manual Control for Rudder; - Installation of a Gate-Stop Device for Airbrake Operating Lever; - Modification of Engine Operation2/22/1993
de - Installation of a Manual Control for Rudder; - Installation of a Gate-Stop Device for Airbrake Operating Lever; - Modification of Engine Operation2/22/1993
en Revision of Maintenance Manual/Change of Inspection and Maintenance Records7/27/1993
de Revision of Maintenance Manual/Change of Inspection and Maintenance Records7/27/1993
de Propeller Flange Exchange9/27/1993
en Propeller Flange Exchange9/27/1993
de Mandatory Upper Pulley Wheel3/7/1996
en Mandatory Upper Pulley Wheel3/7/1996
2 de Mandatory Upper Pulley Wheel7/8/1996
2 en Mandatory Upper Pulley Wheel7/8/1996
3 de Mandatory Upper Pulley Wheel5/24/2004
3 en Mandatory Upper Pulley Wheel5/24/2004
en Revision of Maintenance Manual11/20/1997
en Optional Removal of Winch Launching Hook3/3/1998
de Optional Removal of Winch Launching Hook3/3/1998
en Mandatory C of G Release Hook1/22/2002
de Mandatory C of G Release Hook1/22/2002
en Mandatory Stabilizer, Rudder6/24/2006
de Mandatory Stabilizer, Rudder6/24/2006
en-de Mandatory Information About Revision Status of Flight Manual and Maintenance Manual12/15/2006
1 en-de Mandatory Information About Revision Status of Flight Manual and Maintenance Manual7/20/2009
en Mandatory Fuselage Structure, Stabilizer Structure, Wing Structure4/24/2007
1 de Mandatory Fuselage Structure, Stabilizer Structure, Wing Structure7/30/2007
1 en Mandatory Fuselage Structure, Stabilizer Structure, Wing Structure7/30/2007
de Mandatory Aileron Control, Elevator Control7/2/2007
en Mandatory Aileron Control, Elevator Control7/2/2007
de Mandatory Airbrake Control6/11/2008
1 en Mandatory Airbrake Control6/23/2008
1 en Installation of Spring Device System between Aileron and Rudder6/15/1988
en Special Equipment of GROB G115 for Export to Netherlands6/15/1988
en Special Equipment of GROB G115 for Export to USA12/16/1988
en Approval of Installation of a Primer System (Install Inst)12/20/1988
en Authorized Installation of Sensenich Propeller 72CKS6-2-5312/16/1988
en Exchange of Bowden Cables for Throttle and Mixture Operation and Exchange of Fuel Shut-Off Valve5/22/1989
1-7 en Extension of Operation Limits - New Edition of Flight Manual - Installation of Additional Equipment (Install Inst-2, Install Inst-4)10/24/1989
en Design Standard and Special Equipment for GROB G115 for Export to UK4/28/1992
1 en Cracks on Main Landing Gear Axles7/4/1990
en Modification of Main Landing Gear6/7/1991
en Replacement of Both Aileron Control Rods No. 1 (115-4400/4401)7/5/1990
en Permitted Modification of Nose Landing Gear5/6/1991
en Replacement of Fuel Hose on Firewall9/18/1990
en Installation of Maintenance Free Fuel Lines12/2/1991
en Revision of Flight Manual GROB G115/G115A8/13/1992
2 en Modification of G115/G115A to G115B Standard4/21/1993
2 en Elevator Lever Exchange8/12/1993
en Inspection or Modification of Elevator and Elevator Trim Control System8/13/1993
de Inspection or Modification of Elevator and Elevator Trim Control System8/13/1993
en Installation of GRP Nose Wheel Fork9/22/1993
en Revision of Maintenance Manuals10/17/1994
en Check and, if Necessary, Exchange of Carburetor Temperature Sensor12/5/1994
en Installation of LIESE After-Muffler to G115/G115A with Sensenich Propeller12/12/1995
3 en Validation of Never Exceed Speed (VNE) & Reapproval of "Aerobatic" Maneuvers10/24/1996
en Exchange of Elevator Hinges (Install Inst)12/11/1996
2 en Exchange of Elevator Hinges4/8/1997
en Weights and Residual Moments of Control Surfaces2/10/1997
en Modification of Flap Control4/29/1997
en Securing of Lower Rudder Bolt11/12/1997
en Inspection of Trim Tab Hinges5/15/1998
2 en Installation of Maintenance Free Fuel, Oil and Brake Hoses2/7/2001
en Service Life Extension1/27/2004
1 en Service Life Extension7/25/2016
2 en Mandatory Fuel Storage System & Fuel Distribution System12/13/2021
2 en Exhaust Muffler Installation5/15/2003
2 en Fuel Tank Sealant3/21/2002
6 en Mandatory Wheels and Brakes - Brake Master Cylinder11/5/2012
1 en Mandatory CO in Cockpit10/7/2002
en Flight Compartment Furnishing7/31/2002
1 en Mandatory Revision of Documentation. Information About Revision Status3/10/2004
2 en Mandatory Revision of Documentation. Information About Revision Status2/26/2008
3 en Mandatory Revision of Documentation. Information About Revision Status1/20/2012
4 en Mandatory Revision of Documentation. Information About Revision Status10/12/2016
1 en Mandatory Revision of Documentation. Information About Revision Status3/10/2004
2 en Mandatory Revision of Documentation. Information About Revision Status2/26/2008
3 en Mandatory Revision of Documentation. Information About Revision Status1/20/2012
4 en Mandatory Revision of Documentation. Information About Revision Status1/20/2012
3 en Mandatory Revision of Documentation. Information About Revision Status5/31/2006
4 en Mandatory Revision of Documentation. Information About Revision Status10/16/2007
5 en Mandatory Revision of Documentation. Information About Revision Status6/19/2008
6 en Mandatory Revision of Documentation. Information About Revision Status9/17/2010
7 en Mandatory Revision of Documentation. Information About Revision Status3/21/2011
8 en Mandatory Revision of Documentation. Information About Revision Status3/21/2011
9 en Mandatory Revision of Documentation. Information About Revision Status6/14/2016
13 en Mandatory Documentation Status9/7/2009
28 en Mandatory Documentation Status9/15/2023
7 en Mandatory Revision of Documentation. Information about Revision Status12/20/2011
8 en Mandatory Revision of Documentation. Information about Revision Status5/31/2016
2 en Mandatory Propeller7/14/2004
en Mandatory Fuel Distribution10/1/2004
de Mandatory Fuel Distribution10/1/2004
en Mandatory Landing Gear & Main Landing Gear11/22/2004
en Mandatory Wheels and Brakes - Alternate Brake Cylinder2/8/2008
2 en Mandatory Wheels and Brakes - Alternate Brake Cylinder2/8/2008
3 en Mandatory Wheels and Brakes - Alternate Brake Cylinder9/14/2021
1 en Mandatory Service Life Extension1/20/2012
2 en Mandatory Service Life Extension7/25/2016
en Landing Gear & Main Landing Gear7/10/2009
1 en Mandatory Standard Practices - Airframe & Wing Structure9/16/2010
en Mandatory Canopy - Canopy Jettison7/21/2009
en Mandatory Nose Landing Gear10/29/2009
en Mandatory Instrument Panel Installation - Check Electrical Wiring for Chafing, Installation of Chafing Protection9/2/2009
en Mandatory Fuel - Distribution - Inspection of Air Filter Box10/21/2009
en Mandatory Canopy - Inspection of Canopy Lock10/23/2009
en Mandatory Inspection of Flaps Operating Lever10/21/2009
en Marking of Canopy Emergency Release Handle7/21/2010
en Nose Wheel Steering - Improved Attachment of Shimmy Damper3/16/2011
1 en Nose Wheel Steering - Improved Attachment of Shimmy Damper9/19/2011
en Electrical Power - Alternative Toggle Switch2/10/2012
1 en Mandatory Elevators and Trim Tab - Inspection of Elevator Trim Tab Arm3/8/2012
2 en Mandatory Elevators and Trim Tab - Inspection of Elevator Trim Tab Arm3/28/2012
3 en Mandatory Elevators and Trim Tab - Inspection of Elevator Trim Tab Arm8/3/2012
en Mandatory Standard Practices and Structures - General - Replacement of Self Locking Nuts11/26/2012
en Mandatory Inspection of Elevator Flanges11/26/2013
1 en Mandatory Inspection of Elevator Flanges12/3/2013
en Mandatory Inspection of Starter Solenoid7/14/2014
1 en Mandatory Inspection of Starter Solenoid12/1/2014
en Mandatory Fuselage Structure - Inspection of Tail Joints2/25/2016
2 en Mandatory Flight Compartment - Limitation of Aerobatic Operation3/3/2017
1 en Mandatory DC Electrical Load Distribution - Special Inspection of Battery Relay and External Power Relay6/14/2024
en Mandatory Flight Controls5/8/2003
en Mandatory Flight Controls5/19/2003
en Mandatory Flight Controls9/12/2003
en Mandatory Fuselage Structure: Check of Fuselage Bonding Seam11/13/2003
en Mandatory Fuselage Structure: Fuselage Bonding Seam12/10/2003
en Mandatory Fuselage Structure4/20/2004
en Mandatory Landing Gear & Extension and Retraction6/1/2004
en Mandatory Landing Gear & Extension and Retraction9/15/2004
2 en Mandatory Landing Gear & Extension and Retraction2/14/2005
en Mandatory Landing Gear & Main Landing Gear11/22/2004
en Mandatory Landing Gear & Nose Landing Gear11/26/2004
en Mandatory Landing Gear - Extension and Retraction3/7/2005
en Mandatory Power Distribution7/1/2005
en Wheels and Brakes2/8/2008
en Mandatory Electrical Power & Power Distribution3/18/2009
1 en Mandatory Electrical Power & Power Distribution4/27/2009
en Mandatory Inspection of Elevator Flanges12/3/2013
en Mandatory Inspection of Starter Solenoid / Installation of a Starter Relay7/14/2014
3 en Mandatory Inspection of Starter Solenoid / Installation of a Starter Relay2/5/2015
3 en Mandatory Engine, Fuel and Control5/30/2005
7 en Service Time between Overhauls (TBO)7/18/1994
en Inspection & Exchange of Cylinders & Intake Pipes6/30/1984
en Vacuum Pump with Modification2/5/1986
en Modification of Cylinder Head Seat1/18/1988
en Inspection and Modification of Lower Slick Magneto10/8/1992
en Exchange of Toothed Rings of Magnetos10/20/1992
en Inspection of Cylinder Head Valve Seat7/18/1994
en Optional Installation of Spark Plugs Type Champion REN 30S7/18/1994
en New Issue of Operations Manual 7/1/1994
en Revision of Operations Manual 10/5/1994
2 en Mandatory Engine - Reworking of Cylinder Heads2/24/2011
en-de Mandatory Waterballast - Dump - Inspection of Water Ballast Connection for Tight Fit10/21/2009
Service Letters
NameRevisionLangSubjectDate
en Installation of GPS Antenna5/18/2000
en Change of Engine Power Control Panel Cover Plate P/N 115E-7000.27E10/18/2000
en Modification of Flexible Hoses10/23/2000
en Nose Wheel Fork10/18/2000
en NLG Bracket10/19/2000
en Repositioning of GPS Antenna5/22/2001
en Modification of Fuel Tank Vent System1/9/2001
en Mandatory Engine Controls Support Bracket3/20/2001
2 en Nose Landing Gear3/30/2006
en Fuel Distribution7/4/2002
en Canopy Lock11/20/2003
en Wheels and Brakes12/11/2007
en Standard Practices - Airframe - Torque Value7/23/2010
en Engine - Fuel and Control - Engine Driven Fuel Pump8/24/2015
en Horizontal Stabilizer8/31/2009
en Engine Mount6/17/2009
1 en Engine Mount5/18/2011
2 en Engine Mount5/30/2011
en-de Propeller Assembly6/9/2009
1 de Maintenance Checks10/25/2004
1 en Maintenance Checks10/25/2004
de Control and Actuating Cables8/5/2004
en Control and Actuating Cables8/5/2004
en General Information10/12/2004
en Repair Materials: BAKELITE Resin and Hardener Names, Alternative Adhesive for Plexiglass Replacements & Alternative Tank Sealant10/11/2004
de Repair Materials: BAKELITE Resin and Hardener Names, Alternative Adhesive for Plexiglass Replacements & Alternative Tank Sealant10/11/2004
2 en Repair Materials: BAKELITE Resin and Hardener Names, Alternative Adhesive for Plexiglass Replacements & Alternative Tank Sealant7/19/2010
3 en Repair Materials: BAKELITE Resin and Hardener Names, Alternative Adhesive for Plexiglass Replacements & Alternative Tank Sealant1/27/2011
4 en Repair Materials: BAKELITE Resin and Hardener Names, Alternative Adhesive for Plexiglass Replacements & Alternative Tank Sealant8/1/2011
1 en-de Wheels and Brakes3/3/2006
2 en Wheels and Brakes6/28/2013
en-de Wheels and Brakes1/19/2006
en-de Repair Material (Here: Paint)4/10/2007
en-de Control Stick Grip8/21/2009
en-de Standard Repairs7/13/2009
en-de Repair Instructions6/15/2010
en-de Carbon Fabric6/21/2010
en-de Return of Materials8/26/2010
en-de Change of Type Certificate Holder11/26/2010
en-de Supply of DIN - Parts (Industrial Standard)1/19/2011
en Standard Practices - Air Frame - Defective Standard Hardware7/3/2012
en Discontinuation of Grob-Micro-Benz Clock P/N 115EG-77807/19/2022
1 en Part Numbering System3/10/2023
Technical Information
NameRevisionLangSubjectDate
en Securing of Front and Rear Wing Locking Assemblies Against Turning2/14/1994
de Securing of Front and Rear Wing Locking Assemblies Against Turning2/14/1994
1 de Maintenance10/25/2004
de Control and Operating Cables8/5/2004
en Amendment of Maximum Weight5/22/1976
de Amendment of Maximum Weight5/22/1976
en Chance to Fittings of C. of G. Release6/16/1976
en Steering Installation in Cockpit Area8/16/1976
de Steering Installation in Cockpit Area8/16/1976
en Deviation of Record of Measurements (Einstell-Bericht)2/8/1977
de Deviation of Record of Measurements (Einstell-Bericht)2/8/1977
en Mounting of Cable Pulley in Case of Cable Release6/30/1977
de Mounting of Cable Pulley in Case of Cable Release6/30/1977
en Limitation of Aileron Deflection by Supports on Dismantled Plane7/28/1977
de Limitation of Aileron Deflection by Supports on Dismantled Plane7/28/1977
en Change of Rudder Control11/28/1977
de Change of Rudder Control11/28/1977
de Change of Manuals, Placards and Symbols5/23/1978
en Change of Manuals, Placards and Symbols5/23/1978
en Securing Screws for Attaching Brake Flap Levers to Center Control Unit in Fuselage Center Section6/12/1979
de Securing Screws for Attaching Brake Flap Levers to Center Control Unit in Fuselage Center Section6/12/1979
en Safety Device on Inspection Cover on Top of Fuselage2/5/1980
de Safety Device on Inspection Cover on Top of Fuselage2/5/1980
en Canopy Fasteners6/9/1980
de Canopy Fasteners6/9/1980
en Marks to Control Correct Mounting of Elevator10/1/1980
de Marks to Control Correct Mounting of Elevator10/1/1980
en Replacement of Hotellier-Quicklinks of Elevator System5/4/1981
de Replacement of Hotellier-Quicklinks of Elevator System5/4/1981
de Exchange of Elevator Hinge Bolts6/10/1981
en Exchange of Elevator Hinge Bolts6/10/1981
de Increase of Service Time9/30/1981
en Increase of Service Time9/30/1981
en U.S. Airworthiness Certification of "Prematurely" Exported Sailplanes11/25/1982
2 en Difference from German Data Sheet No. 306 for Sailplanes with Certification in Italy9/7/1982
2 de Difference from German Data Sheet No. 306 for Sailplanes with Certification in Italy9/7/1982
en Inspection and Exchange of Slide at Pedal Unit4/6/1983
de Inspection and Exchange of Slide at Pedal Unit4/6/1983
en Inspection and Exchange of Airbrake Locking Levers in Wing (TM, Repair Inst, Tech Info)3/25/1985
de Inspection and Exchange of Airbrake Locking Levers in Wing3/25/1985
en Replacements of Hotellier Quick-Links of Control System5/4/1981
en Exchange of Trimm-Tube in Elevator1/12/1981
en U.S. Airworthiness Certification of "Prematurely" Exported Sailplanes3/12/1982
en Increase in Service Time9/30/1981
en Installation of a Modified Elevator11/19/1981
2 en Installation of a Modified Elevator11/19/1981
en Inspection and Exchange of Slide at Front Pedal Unit6/22/1981
en Difference from German Data Sheet No. 315 for Sailplanes with Certification in Italy9/6/1982
en U.S. Airworthiness Certification of "Prematurely" Exported Sailplanes4/2/1984
en Installation of "Whiskers" for Training of Spinning Sailplanes with Certification in Australia1/16/1984
en Inspection and Exchange of Front Airbrake Operating Lever10/1/1985
en Inspection and Exchange of Parallel-Lever II 103-4320.05 at Rear Pedal Support of Rudder Control (Repair Inst)10/1/1985
en Control and Extension of Stop Pad 103B-4721.11 at Outer Pivoted Levers of Airbrakes in Wing10/7/1985
en Inspection and Exchange of Both End Spar Spigot Assemblies6/23/1988
en Canopy Fasteners6/9/1980
en Change of Grossweight to Increase Useful Load5/12/1981
2 en Engine Mount5/18/2011
en Damper Installation in the Airbrake Control Assembly9/28/1981
en Updates to Flight Manual GROB G 109, Edition March 1981 to Revision Date Oct. 1, 198110/1/1981
en U.S. Airworthiness Certification of "Prematurely" Exported Sailplanes7/12/1982
en Exchange of the Engine Mount5/14/1982
en Correction of Flight Manual GROB G10912/14/1982
en Permissible Modification of the Fuel System6/30/1983
en Reduction of Center of Gravity Range and Procedure for Spin Recovery5/2/1983
2 en Reduction of Center of Gravity Range and Procedure for Spin Recovery5/24/1983
en Installation of Equipment for Controlled VFR-Flights
en Installation of Equipment for Controlled VFR-Flights9/1/1983
en U.S. Airworthiness Certification of "Prematurely" Exported Sailplanes4/2/1984
en Modification of Powered Glider with Canadian Registration10/22/1984
en Adjustment of Flight Manual GROB G 109 B1/10/1985
en Modification of Powered Glider G 109 B with Canadian Registration5/6/1985
en Inspection and exchange of Legs of Main Landing Gear3/18/1985
en Measures for Improvement of Flutter Behavior of Grob C109B (Repair Inst R1-3)1/29/1986
en Modification on the Motorglider GROB G 109 B for the Certification in France2/3/1986
en Extension of Flight and Maintenance Manual and Optional Installation of Additional Equipment5/1/1986
Miscellaneous
NameRevisionLangSubjectDate
en General Order Form
en CAMO-Approval DE.MG.027810/2/2009
en Grob Files for Preliminary Insolvency11/3/2008
en H3 Aerospace Acquires Grob Aircraft1/31/2009
1 en G115E/EG Spec Sheet - High-Performance Training and Aerobatics
1 en G120A Spec Sheet - High-Performance Training and Aerobatics
en G140TP Spec Sheet - Single Platform - Multirole Training
en G115E/EG4/30/2004