Service Information: Thrush Aircraft
Alternative Names: (Ayres, Quality Aerospace)
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Table of Contents
Custom Kits • Flight Manuals • Maintenance Manuals • Service Bulletins • Service Letters
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| CK-407 | revised | en | Installation Instructions All Metal Empennage Single Cockpit Only | 3/30/1990 |
| CK-AG-01 | en | Goodyear Disc Brake Installation | 2/10/1975 | |
| CK-AG-02 | en | Windshield Washer and Wiper Installation | 4/9/1975 | |
| CK-AG-03 | A | en | Shoulder Harness and Inertia Reel Installation | 11/8/1976 |
| CK-AG-04 | en | Hopper Emergency Shutoff Valve Installation | 6/27/1975 | |
| CK-AG-05 | en | Installation of Voltmeter | 7/2/1975 | |
| CK-AG-06 | en | Installation of Engine Hourmeter | 7/7/1975 | |
| CK-AG-07 | en | Installation of 70 Ampere Generator Circuit Breaker | 7/11/1975 | |
| CK-AG-08 | en | Cleveland Disc Brakes | 8/13/1975 | |
| CK-AG-09 | en | Replacement of Engine TRI-GAGE | 7/25/1975 | |
| CK-AG-10 | en | Improved Hopper Door Seal | 8/18/1975 | |
| CK-AG-11 | en | Main Landing Gear Wheel Adapter Kit | 2/13/1976 | |
| CK-AG-12 | en | Installation of Cleveland 29-Inch Wheel and Brakes | 4/28/1976 | |
| CK-AG-12 | 1 | en | Installation of Cleveland 29-Inch Wheel and Brakes | 9/10/1976 |
| CK-AG-12 | A | en | Installation of Cleveland 29-Inch Wheel and Brakes | 7/26/1977 |
| CK-AG-13 | en | Freon Air Conditioner Installation | 4/28/1976 | |
| CK-AG-14 | en | Hopper Vent and Baffle Kit | 6/10/1976 | |
| CK-AG-15 | en | Cockpit Door Quick Release Hinge Installation | 11/9/1976 | |
| CK-AG-16 | en | Hi-Speed Micro Adjust Calibrator Assembly Installation | 2/9/1977 | |
| CK-AG-17 | en | Extended Control Stick Installation | 7/1/1977 | |
| CK-AG-18 | en | Rudder Hinge Modification | 2/15/1979 | |
| CK-AG-18 | 1 | en | Rudder Hinge Modification | 4/24/1979 |
| CK-AG-19 | en | Permanent Ballast Installation | 12/8/1980 | |
| CK-AG-20 | en | Power Plant Conversion - Piston to Turbine | 12/13/1989 | |
| CK-AG-21 | en | Aileron Servo Field Conversion | ||
| CK-AG-23 | en | Wing Extension Installation | 7/30/1984 | |
| CK-AG-25 | en | Generator Failure Warning Light Kit | 10/13/1992 | |
| CK-AG-26 | en | Barrier Filter Installation | 8/3/1993 | |
| CK-AG-29 | en | Wing Fatigue Life Extension | 12/23/1997 | |
| CK-AG-30 | en | Field Installation of the Kaplan Splice Block | 12/6/2001 | |
| CK-AG-32 | en | Field Installation of the 22507 Lower Spar Cap | 8/7/2003 | |
| CK-AG-34 | en | Field Conversion of S2R-T65DC to S2RHG-T65DC | 2/29/2004 | |
| CK-AG-35 | en | Lower Rudder Repair | 9/2/2004 | |
| CK-AG-36 | en | Field Conversion of S2RHG-T34 Aircraft to S2RHG-T65 | 10/13/2004 | |
| CK-AG-37 | en | Field Conversion of S2R-T34 and S2R-T34DC to Allow Installation of PT6A-34AG Engine with Single Line Fuel Control System | 8/11/2006 | |
| CK-AG-38 | en | Field Conversion of S2R-T15 Aircraft to S2R-T34 | 8/11/2006 | |
| CK-AG-39 | en | Belly Skin Reinforcement | 8/11/2006 | |
| CK-AG-40 | A | en | Wing Spar Upgrade | 12/8/2006 |
| CK-AG-41 | en | Wing Spar Upgrade | 2/21/2007 | |
| CK-AG-41 | A | en | Wing Spar Upgrade | 3/8/2007 |
| CK-AG-43 | en | Lamar Generator Control Unit Modification for S2R-T34 Single and Dual Cockpit Equipped with MVP-50T Engine Monitor | 8/18/2014 | |
| CK-AG-43 | A | en | Lamar Generator Control Unit Modification for S2R-T34 Single and Dual Cockpit Equipped with MVP-50T Engine Monitor | 8/15/2018 |
| CK-AG-43 | B | en | Lamar Generator Control Unit Modification for S2R-T34 Single and Dual Cockpit Equipped with MVP-50T Engine Monitor | 8/28/2020 |
| CK-AG-45 | en | Field Conversion of S2R-T34 | 12/1/2016 | |
| CK-AG-45 | B | en | Field Conversion of S2R-T34 | 7/6/2018 |
| CK-AG-47 | en | Whelen OR650 Series LED Wingtip Position/Anti-Collision Light Assembly and Whelen 71544 Series LED Aft Position Light Assembly | 2/28/2019 | |
| CK-AG-49 | en | Step Upgrade | 2/18/2020 | |
| CK-AG-50 | en | Impact Resistant Windshield | 6/3/2020 | |
| CK-AG-51 | en | Battery Installation | 8/20/2020 | |
| CK-AG-52 | en | Installation of C352TS Fire Extinguisher | 9/28/2020 | |
| CK-AG-52 | A | en | Installation of C352TS Fire Extinguisher | 6/18/2024 |
| CK-AG-53 | en | Turn Light Installation | 1/26/2021 | |
| CK-AG-54 | en | Metallic Reinforced Braided Hosse Installation | 2/1/2021 | |
| CK-AG-55 | B | en | Ultraviolet and Infrared Cockpit Glazing Option | 2/15/2022 |
| CK-AG-56 | en | Wing Upgrade | 2/15/2022 | |
| CK-AG-58 | en | Belly Skin Improvements | 7/3/2024 | |
| CK-AG-58 | A | en | Belly Skin Improvements | 9/9/2024 |
| CK-AG-61 | A | en | Upgrade Engine Mount Isolators Installation | 1/7/2025 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| FM 510 | 3 | en | S2R-G10 Single & Dual Cockpit - S/N G10-169 and Subsequent | 12/7/2010 |
| FM 510P | 4 | en | S2R-T34 Single & Dual Cockpit - S/N T34-273 and Subsequent | 1/27/2009 |
| FM 510P | 6 | en | S2R-T34 Single & Dual Cockpit - S/N T34-273 and Subsequent | 2/14/2014 |
| FM 550P | 1 | en | S2RHG-T65 Dual Cockpit - S/N T65HG-013DC and Subsequent | 2/22/2011 |
| FM 710P | 3 | en | S2R-T660 Single & Dual Cockpit - S/N T660-101 and Subsequent | 1/22/2001 |
| FM 710P-DC | en | S2R-T660 Dual Cockpit - S/N T660-114DC and Subsequent | 8/12/2005 | |
| FM 710P-SC | 1 | en | S2R-T660 Single Cockpit - S/N T660-109 and Subsequent | 9/30/2005 |
| FM H8001 | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 10/9/2012 | |
| FM H8001 | B | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 3/19/2015 |
| FM H8001 | C | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 9/3/2015 |
| FM H8001 | D | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 11/17/2016 |
| FM H8001 | F | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 9/22/2017 |
| FM R1340 | en | S2R-R1340 Single & Dual Cockpit - S/N R1340-036 and Subsequent | 11/29/2007 | |
| FM T65 | 1 | en | S2R-T65 Dual Cockpit - S/N T65-001 DC and Subsequent | 3/4/2004 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| MM 510 | en | S2R-G10 Single & Dual Cockpit - S/N G10-169 & up | 3/26/2010 | |
| MM H80-1MM | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 10/17/2012 | |
| MM H80-1MM | 4 | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 3/19/2015 |
| MM H80-1MM | 5 | en | S2R-H80 Single & Dual Cockpit - S/N H80-101 & Subsequent | 11/17/2016 |
| MM R1340 | en | S2R-R1340 Single & Dual Cockpit - S/N 036 & up | 1/1/2008 | |
| MM S2R | en | S2R - S/N 1416 and Subsequent | 8/21/1989 | |
| MM S2R-T65 | en | S2R-T65 - All S/Ns with DC Suffix Indicate the DUAL COCKPIT Configuration | ||
| MM T15-T34-2 | 1 | en | S2R-T15 (S/N T15-20 & Subsequent) & S2R-T34 (S/N T34-091 & Subsequent) | 7/24/1991 |
| MM T34-2 | en | S2R-T34 Single & Dual Cockpit - S/N T34-273 & up | 2/22/2005 | |
| MM T34-2 | 1 | en | S2R-T34 Single & Dual Cockpit - S/N T34-273 & up | 2/14/2014 |
| MM T34-2 | 2 | en | S2R-T34 Single & Dual Cockpit - S/N T34-273 & up | 2/13/2017 |
| MM T65HG-2 | 2 | en | S2RHG-T65 Single & Dual Cockpit - S/N T65GH-011 & up, T65GH-013DC & up | 9/16/2005 |
| MM T660-3 | 2 | en | S2R-T660 Single & Dual Cockpit - S/N T660-109 & up, T-660-114DC & up, T660DCP & up | 8/5/2005 |
| MM T660-3 | 3 | en | S2R-T660 Single & Dual Cockpit - S/N T660-109 & up, T-660-114DC & up, T660DCP & up | 10/7/2015 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SB-AG-001 | en | Conversion of Model PT6/S-2R from the PT6A-34 Engine to the PT6A-34AG Engine | 8/25/1977 | |
| SB-AG-002 | en | Replacement of Beta Light Microswitch | 10/17/1977 | |
| SB-AG-1 | en | Inspection of Vertical Fin Structure | 11/30/1973 | |
| SB-AG-2 | A | en | Inspection of Rudder Assembly P/N 5-4031-41 | 12/2/1974 |
| SB-AG-3 | en | Seat Cushion Replacement | 4/23/1974 | |
| SB-AG-4 | en | Wheel Installation | 9/19/1974 | |
| SB-AG-5 | en | Re-Routing of Fuel Vapor and Primer Line | 6/4/1975 | |
| SB-AG-6 | en | Replacement of Engine Oil Cooler Valve | 6/6/1975 | |
| SB-AG-7 | en | Improve Hopper Latch | 9/10/1975 | |
| SB-AG-8 | en | Carburetor Air Selector Valve Assembly Inspection | 9/20/1976 | |
| SB-AG-9 | en | Rudder Hinge Inspection | 1/12/1977 | |
| SB-AG-10 | en | Sulphur Dusting Placard Installation | 1/12/1977 | |
| SB-AG-11 | en | Inspection and/or Replacement of Aileron Hinge Brackets | 1/31/1977 | |
| SB-AG-12 | en | Right Wing Rib Rivet Inspection and/or Rib Replacement | 7/13/1977 | |
| SB-AG-12 | 1 | en | Right Wing Rib Rivet Inspection and/or Rib Replacement | 7/13/1977 |
| SB-AG-13 | en | Inspection of Vertical Fin Structure | 4/25/1978 | |
| SB-AG-14 | en | Fuel System Modification | 8/10/1978 | |
| SB-AG-15 | en | Rudder Upper Hinge Inspection | 4/24/1979 | |
| SB-AG-15 | 1 | en | Rudder Upper Hinge Inspection | 4/24/1979 |
| SB-AG-16 | en | Fuselage Upper Longeron Repair | 4/1/1984 | |
| SB-AG-17 | en | Aft Cockpit Bulkhead Reinforcement | 11/11/1984 | |
| SB-AG-18 | en | Reinforcement of Engine Control Bellcrank Supports | 1/7/1985 | |
| SB-AG-19 | en | Fuselage Upper Longeron Inspection and Repair | 1/20/1987 | |
| SB-AG-20 | en | Metal Tail Drain Holes | 7/7/1988 | |
| SB-AG-21 | en | Metal Fin Spar Reinforcement | 9/21/1988 | |
| SB-AG-22 | en | Aileron Hinge Brackets | 9/23/1988 | |
| SB-AG-23 | en | Wing Spar Inspection | 7/11/1989 | |
| SB-AG-24 | en | Horizontal Stabilizer Strut Attach Inspection | 6/20/1990 | |
| SB-AG-25 | en | Vertical Stabilizer Rudder Hinge Inspection | 7/20/1990 | |
| SB-AG-26 | en | PT6 Engine Forward Fireseal | 2/27/1991 | |
| SB-AG-27 | en | S2R Control Stick Fore and Aft Pivot Bolt Inspection | 6/10/1991 | |
| SB-AG-27 | A | en | S2R Control Stick Fore and Aft Pivot Bolt Inspection | 7/24/1991 |
| SB-AG-28 | en | Unapproved Wingtip Modification | 9/27/1991 | |
| SB-AG-29 | en | Wing Spar Corrosion | 6/15/1992 | |
| SB-AG-30 | revised | en | Spar Cracks Under Aileron Brackets | 5/1/1993 |
| SB-AG-31 | en | Main Landing Gear Shock Strut Inspection and Repair | 11/3/1992 | |
| SB-AG-32 | en | Fin Front Spar Attachment to Horizontal Stabilizer | 2/12/1993 | |
| SB-AG-33 | en | Sheared Huck Bolts in the Outer Wing | 2/24/1993 | |
| SB-AG-34 | revised | en | Fuselage-Wing Attach Tube Beef-Up | 12/6/1993 |
| SB-AG-35 | en | NDT Inspection of Spar Caps in the Netherlands | 2/22/1994 | |
| SB-AG-36 | en | Main Landing Gear Shock Strut Modification | 3/25/1994 | |
| SB-AG-37 | en | Cracks in Horizontal Stabilizer Spar | 6/27/1994 | |
| SB-AG-38 | en | Vertical Fin Rear Spar Modification | 6/27/1994 | |
| SB-AG-39 | en | Wing Spar Inspection and Fatigue Life Extension | 9/17/1996 | |
| SB-AG-39 | 1 | en | Wing Spar Inspection and Fatigue Life Extension | 12/12/1997 |
| SB-AG-40 | en | Fuel Tank Inspection | 10/30/1997 | |
| SB-AG-41 | en | AFT Fuselage Tubing | 1/7/1998 | |
| SB-AG-42 | en | Main Landing Gear Attach Bolt Installation | 6/16/1999 | |
| SB-AG-43 | en | Fin Spar & Attach Fittings Inspection and Upgrade | 9/1/1999 | |
| SB-AG-43 | C | en | Fin Spar & Attach Fittings Inspection and Upgrade | 2/16/2018 |
| SB-AG-44 | en | Oil Vent Tube Modification | 1/16/2003 | |
| SB-AG-45 | en | Fin Front Spar Attach Bolt Upgrade and Fin Rear Spar Inspection | 11/18/2003 | |
| SB-AG-45 | A | en | Fin Front Spar Attach Bolt Upgrade and Fin Rear Spar Inspection | 9/6/2005 |
| SB-AG-45 | B | en | Fin Front Spar Attach Bolt Upgrade and Fin Rear Spar Inspection | 6/1/2007 |
| SB-AG-45 (addendum) |
B | en | Fin Front Spar Attach Bolt Upgrade and Fin Rear Spar Inspection | 4/7/2008 |
| SB-AG-45 | C | en | Fin Front Spar Attach Bolt Upgrade and Fin Rear Spar Inspection | 2/16/2018 |
| SB-AG-45 | D | en | Fin Front Spar Attach Bolt Upgrade and Fin Rear Spar Inspection | 12/8/2020 |
| SB-AG-46 | en | Swaged Cable Assembly | 3/10/2005 | |
| SB-AG-47 | en | Upper Longeron Inspection | 8/10/2005 | |
| SB-AG-48 | en | Flap Control Torque Shaft Replacement | 3/7/2006 | |
| SB-AG-49 | en | Seat Support Bracket Inspection and Repair | 8/1/2008 | |
| SB-AG-50 | en | PT6A-60AG P3 Line Chafing | 4/15/2009 | |
| SB-AG-51 | en | Wire Bundle Short Circuit | 4/24/2009 | |
| SB-AG-52 | en | Wing Modifications | 1/27/2010 | |
| SB-AG-53 | en | S2R-T660 Rudder Inspection | 7/14/2010 | |
| SB-AG-54 | en | S2R-T660 Elevator Push-Pull Tube End Fitting Inspection | 6/6/2011 | |
| SB-AG-55 | en | S2R-T660 Vertical Fin and Rudder Inspection | 6/29/2012 | |
| SB-AG-56 | en | S2R-H80 AFT Lower Cowl Modification | 12/22/2017 | |
| SB-AG-56 | B | en | S2R-H80 AFT Lower Cowl Modification | 12/10/2020 |
| SB-AG-58 | A | en | Elevator, Rudder, and Aileron Control Systems Inspection and Hardware Replacement to Incorporate Castellated Nuts in Joints Subject to Rotation | 10/15/2015 |
| SB-AG-59 | en | United Instruments, Inc. Service Bulletin No. 12 | 9/9/2013 | |
| SB-AG-60 | en | Environmental Protective Cover for EDC-33 | 10/14/2013 | |
| SB-AG-60 | A | en | Environmental Protective Cover for EDC-33 | 9/4/2014 |
| SB-AG-60 | B | en | Environmental Protective Cover for EDC-33 | 1/20/2015 |
| SB-AG-61 | en | Fuel Filter Replacement on S2R-H80 Airplanes | 7/31/2014 | |
| SB-AG-61 | A | en | Fuel Filter Replacement on S2R-H80 Airplanes | 8/13/2014 |
| SB-AG-65 | en | Installation of Click Bond Electrical Grounding Spacer Stud on the HEader Tank | 11/20/2017 | |
| SB-AG-68 | en | Forward Firewall Modification | 5/18/2018 | |
| SB-AG-71 | en | S2R-T34 MVP & GCU Wiring Relocation | 4/9/2019 | |
| SB-AG-72 | en | S2R-H80 Fuel Pump Fittings & Lines - Improvement & Relocation | 1/25/2019 | |
| SB-AG-72 | A | en | S2R-H80 Fuel Pump Fittings & Lines - Improvement & Relocation | 5/8/2023 |
| SB-AG-73 | en | Installation of Stall Warning Feedback Suppression Resistor | 6/1/2019 | |
| SB-AG-74 | en | Propeller - NYCO GN3058 Grease | 1/14/2020 | |
| SB-AG-77 | en | S2R-T34 Corrections for Air Speed Indicator | 4/15/2021 | |
| SB-AG-78 | A | en | Horizontal Stabilizer Attach Channel Repair | 2/9/2023 |
| SB-AG-82 | en | H80 Propeller Shaft Care | 8/31/2023 | |
| SB-AG-83 | en | S2R-510 Main Fuel Lines Inspection & Replacement | 2/20/2024 | |
| SB-AG-84 | en | S2R-510 Air Intake Filter Inspection & Gasket Tape Installation | 3/11/2024 | |
| SB-AG-85 | en | 510 Gallon Series Tail Spring Forward Mount Support Struts Installation | 7/30/2024 | |
| SB-AG-86 | en | 510 Wing Rivets Inspection & Installation | 9/9/2024 |
| Name | Revision | Lang | Subject | Date |
|---|---|---|---|---|
| SL-AG-001 | en | Cable Control Inspection | 3/1/1960 | |
| SL-AG-003 | en | Aileron Cable Control Inspection | 11/15/1960 | |
| SL-AG-004 | en | Control System Inspection | 5/12/1961 | |
| SL-AG-005 | en | Engine Mount Inspection | 5/12/1961 | |
| SL-AG-006 | en | Elevator Pulley Installation | 5/24/1961 | |
| SL-AG-007 | en | Aileron Push-Pull System | 5/12/1961 | |
| SL-AG-008 | en | Aileron Spar Inspection and Hinge Modification | 6/15/1961 | |
| SL-AG-009 | en | Steel Aileron Hinge Installation | 6/15/1961 | |
| SL-AG-010 | en | Marlex Fairlead Availability | 6/12/1961 | |
| SL-AG-011 | en | Engine Mount Preventive Maintenance | 6/20/1961 | |
| SL-AG-012 | en | Oil Tank Strap Reinforcements | 8/10/1961 | |
| SL-AG-013 | en | S-2B Engine Mount | 9/15/1961 | |
| SL-AG-014 | en | S-2B Engine Mount Inspection | 1/8/1962 | |
| SL-AG-015 | en | S-2B Engine Mount | 3/16/1962 | |
| SL-AG-016 | en | Oil Tank Straps | 7/17/1962 | |
| SL-AG-017 | en | S-2B Engine Mount | 7/15/1962 | |
| SL-AG-018 | en | Wing Attach Angles | 7/17/1962 | |
| SL-AG-019 | en | Fin and Rudder Hinges | 8/22/1962 | |
| SL-AG-020 | en | Landing Gear | 9/5/1962 | |
| SL-AG-021 | en | Aileron Stop Cable | 11/27/1962 | |
| SL-AG-022 | en | Elevator Trim Tab Rib Replacement | 11/27/1962 | |
| SL-AG-023 | en | Main Spar at Fuselage Side | 2/18/1963 | |
| SL-AG-024 | en | Rear Prop Cone | 4/12/1963 | |
| SL-AG-025 | en | Rear Prop Cone | 5/3/1963 | |
| SL-AG-026 | en | Aileron Control Stop Cables | 6/7/1963 | |
| SL-AG-027 | en | Control Stick Stop Bolts | 8/21/1963 | |
| SL-AG-028 | en | Tailwheel Trunnion Attach Shaft | 9/12/1963 | |
| SL-AG-029 | en | Wing Center Splice | 10/15/1963 | |
| SL-AG-029 | A | en | Wing Center Splice | 6/2/1972 |
| SL-AG-030 | en | Rudder Cable Wear | 10/15/1963 | |
| SL-AG-031 | en | Aileron Bellcrank Attach Angles in the New Aileron Control System (SERIAL 1163 & UP) | 10/17/1963 | |
| SL-AG-032 | en | Change of Position of Ground Wire Attachment to Ignition Switch (Bendix - Scintilla, Navy Type A-la) | 4/20/1964 | |
| SL-AG-033 | en | Horizontal Stabilizer Leading Edge Vibration | 3/20/1964 | |
| SL-AG-034 | en | Excessive Pin Wear on Attach Point of Lower Tail Flying Wires | 3/30/1964 | |
| SL-AG-035 | en | Corrosion Problem When Using Highly Corrosive Materials | 3/31/1964 | |
| SL-AG-036 | en | Replacement of Lower Spar Cap | 3/22/1965 | |
| SL-AG-037 | en | Inspection Notice - Fuselage Frame | 2/10/1965 | |
| SL-AG-038 | en | Bracing of Welded Hopper in Early S-2C Aircraft | 5/6/1964 | |
| SL-AG-039 | en | Fuel Vent Overflow | 3/16/1965 | |
| SL-AG-040 | en | Modification of Brake Push Rod | 11/22/1965 | |
| SL-AG-041 | en | Additional Boom Support | 3/25/1966 | |
| SL-AG-042 | en | Landing Gear Axle, Thru Bolts | 5/16/1966 | |
| SL-AG-043 | en | Wire Deflector Cable Assembly | 7/1/1966 | |
| SL-AG-044 | en | Rudder Control Cable Fraying | 7/18/1966 | |
| SL-AG-045 | en | Fuel Gage Malfunction | 8/30/1966 | |
| SL-AG-046 | en | Brake Tension Rod - P/N 5-7066 | 2/10/1967 | |
| SL-AG-047 | en | Elevator Trim Cable | 3/9/1967 | |
| SL-AG-048 | en | Tail Wire Bracket - Upper Front Fin - Replacement | 5/26/1967 | |
| SL-AG-049 | en | P/N 10852-1 Fire Extinguisher Placard Installation | 8/25/1967 | |
| SL-AG-051 | en | Re-Positioning of Voltage Regular Assembly | 2/1/1969 | |
| SL-AG-052 | en | Starter Ground Wire Bracing | 2/1/1969 | |
| SL-AG-053 | en | Trim Tab End Rib | 2/1/1969 | |
| SL-AG-054 | en | Main Gear Upper Shock Attach Fitting | 2/1/1969 | |
| SL-AG-055 | en | Horizontal Stabilizer Attach Bolts | 2/1/1969 | |
| SL-AG-056 | en | Throttle Control Bellcranks | 2/1/1969 | |
| SL-AG-057 | en | Metallic Brake Linings | 5/15/1969 | |
| SL-AG-058 | en | Hopper Baffle Attach T-Angle | 6/6/1969 | |
| SL-AG-059 | en | Hopper Baffle Attach T-Angle (Rear Wall) | 6/24/1969 | |
| SL-AG-060 | en | Fuel Gauge Tank Unit | 5/15/1971 | |
| SL-AG-061 | en | Aileron Bay Skins | 7/13/1970 | |
| SL-AG-062 | en | Tailwheel Housing Casting | 7/13/1970 | |
| SL-AG-063 | en | Wind Gust Damage to Ailerons | 7/13/1970 | |
| SL-AG-064 | en | Elevator Trim Tab Mechanism | 3/9/1971 | |
| SL-AG-065 | en | Support Bracket for Reverse Current Relay and Voltage Regulator | ||
| SL-AG-066 | en | Night Lighting System and Voltage Regulator Circuit Interaction | ||
| SL-AG-068 | en | Spray Pressure Line Flex Hose | 12/3/1974 | |
| SL-AG-069 | en | Wing Leading Edge Rib Rivets | 2/24/1975 | |
| SL-AG-070 | en | Replacement of Brake Assembly O-Rings | 2/27/1975 | |
| SL-AG-071 | en | Modification of Exhaust Manifold Outlet | 6/6/1975 | |
| SL-AG-072 | en | Wind Gust Damage to Ailerons | 6/19/1975 | |
| SL-AG-073 | en | Replacement of Tall Wheel Shock Strut Extension Assembly | 7/7/1975 | |
| SL-AG-074 | A | en | Master Relay Control Circuit | 10/24/1975 |
| SL-AG-075 | en | Carburetor Air Box Control Cable Clamp Replacement | 10/1/1975 | |
| SL-AG-076 | en | Carburetor Replacement | 1/30/1976 | |
| SL-AG-077 | en | Carburetor Air Inlet Scoop Assembly Replacement | 1/30/1976 | |
| SL-AG-078 | en | Collector Ring Replacement | 1/30/1976 | |
| SL-AG-078 | 1 | en | Collector Ring Replacement | 1/30/1976 |
| SL-AG-079 | en | Carburetor Heat Modification | 1/30/1976 | |
| SL-AG-080 | en | Crankcase Air/Oil Separator Installation | 2/4/1976 | |
| SL-AG-080 | 1 | en | Crankcase Air/Oil Separator Installation | 4/12/1976 |
| SL-AG-081 | en | Improved Flight Characteristics | 2/6/1976 | |
| SL-AG-081 | 1 | en | Improved Flight Characteristics | 3/19/1976 |
| SL-AG-082 | en | Tail Wheel Trunnion Assembly Modification | 2/5/1976 | |
| SL-AG-083 | en | Rework of Vertical Fin Inspection Plate Attachment | 2/5/1976 | |
| SL-AG-084 | en | Tail Wheel Shock Strut Modification | 2/5/1976 | |
| SL-AG-085 | en | Engine Manifold Pressure Gage Modification | 4/13/1976 | |
| SL-AG-086 | en | Oil Supply Hose Replacement | 6/1/1976 | |
| SL-AG-087 | en | Shoulder Harness and Inertia Reel Installation | 11/8/1976 | |
| SL-AG-088 | en | Flying Wire Brackets Installation | 12/8/1976 | |
| SL-AG-089 | en | Voltmeter Replacement | 12/8/1976 | |
| SL-AG-090 | en | Elevator Trim Tab Push-Rod Replacement | 2/8/1977 | |
| SL-AG-091 | en | Brake Master Cylinder Replacement | 2/25/1977 | |
| SL-AG-091 | 1 | en | Brake Master Cylinder Replacement | 8/25/1977 |
| SL-AG-092 | en | Carburetor Air Temperature Indicator and Improved Exhaust System Installation | 5/6/1977 | |
| SL-AG-093 | en | Starter Torque Limit Inspection and/or Starter Replacement | 9/2/1977 | |
| SL-AG-094 | en | Electrical System Modification | 11/3/1980 | |
| SL-AG-095 | en | Multiple Airworthiness Certification Procedures | 4/1/1982 | |
| SL-AG-096 | en | Fuselage Upper Longeron Inspection | 7/1/1982 | |
| SL-AG-097 | en | Lower Wing Spar Inspection | 10/1/1982 | |
| SL-AG-097 | 1 | en | Lower Wing Spar Inspection | 8/23/1994 |
| SL-AG-099 | revised | en | Wing Rib Repair | 7/17/1990 |
| SL-AG-100 | revised | en | Wing Rib Repair | 7/17/1990 |
| SL-AG-101 | en | Improved Engine Mounting Elastomer Brackets | 2/15/1993 | |
| SL-AG-102 | en | Starter Wiring Improvement | 8/17/1993 | |
| SL-AG-104 | en | Firewall Fuel Filter Quick-Drain Access Hole Enlargement | 5/15/1996 | |
| SL-AG-105 | en | Engine Air Inlet Screen Inspection | 6/19/1996 | |
| SL-AG-106 | en | Inspection of Inlet Bowl Countersunk Screws | 1/16/2001 | |
| SL-AG-107 | en | Battery Vent System Plastic Tees Inspection | 10/28/2004 | |
| SL-AG-108 | en | Flap Torque Shaft Assembly Inspection | 3/28/2005 | |
| SL-AG-109 | en | Torque Chart Update | 10/5/2005 | |
| SL-AG-110 | en | Wing Spar Status Update | 7/17/2007 | |
| SL-AG-111 | en | Engine Mount and Mount Isolator Inspection and Repair | 6/10/2008 | |
| SL-AG-112 | en | Rewiring the External Power Receptacle (APU) so that the Electrical System is Energized Immediately when Power is Applied to the APU | 5/19/2010 | |
| SL-AG-113 | en | Flap Light Nuts Rubbing Flaps | 6/3/2010 | |
| SL-AG-114 | en | Fuel Filter Installation Compliance Check | 2/7/2014 | |
| SL-AG-115 | en | GE Turboprop GH80-100 Engine Fuel Filtration | 3/3/2014 | |
| SL-AG-116 | en | H10 Airplane 10 Micron Fuel Filter Servicing | 1/28/2015 | |
| SL-AG-117 | en | H80 Airplane Flight Manual Revision | 1/15/2015 | |
| SL-AG-118 | en | Relocating Engine Control Hardware to Improve Engine Response | 6/15/2015 | |
| SL-AG-126 | en | Rudder Pedal Mechanism Inspection | 6/11/2018 | |
| SL-AG-127 | en | Aircraft Servicing and Fuel System Best Practices | 9/13/2018 | |
| SL-AG-128 | en | Aircraft Landing Gear | 10/23/2020 | |
| SL-AG-129 | en | S2R-T34 Airplane Flight Manual Supplement Correction for Indicated Air Speeds | 11/12/2020 | |
| SL-AG-133 | en | All S2R Models - Aileron Bell Crank Support Tubes Inspection | 3/21/2024 | |
| SL-AG-134 | en | 510 Series Tail Spring - Forward Mount Slippage | 5/9/2024 | |
| SL-AG-135 | en | Baggage Compartment Door Inspection | 6/7/2024 | |
| SL-AG-136 | en | Control Stick Wiring Harness Inspection | 7/1/2024 | |
| SL-AG-137 | en | Air Barrier Filter Inspection | 7/10/2024 | |
| SL-AG-139 | en | S2R-T660 Tail Spring Life Limitation | 12/23/2024 |