The Aviation DataBase: Service Information: LET Aircraft Industries
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DataBases updated: Jun 6th, 2025
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Information Bulletins
NameRevisionLangSubjectDate
en Modification of L13 Sailplane Main Spar Root - Series 1 - 21st11/13/1961
en Record of SLOW Mode of Pneumatic De-Icing System in FA 2200 FDR02/12/2018
en Modification of LH and RH TCL Connection - Elimination of RAW Data Oscillation in FA 2200 FDR03/20/2018
en Modification of FA 2200 FDR Connection - Record of Voltage Presence on S1A Emergency Bus Bar. Rename of Two Registered Parameters of FDR03/20/2018
en Calibration of TCL Position of Both Engines for FA 2200 FDR04/27/2018
1 en Replaces Original Bolts of Brakes K38-1200-7 with Bolts K38-1200.12 and Original Nuts with Nuts K38-1200.1109/11/2018
2 en Avoiding Corrosion Parts of Fuselage Construction, Wing and Wing Mechanization by Installing Protective Washers04/12/2019
1 en Change Wiring of Loads on S1A, S2A, S2B, S3B Power Buses. Change of Yellow Marked Circuit Breakers on Overhead Panel. Clarification of Brushes Installation of LUN 2132.02-8 Starter/Generator04/08/2019
en Blanking of Drain Holes02/12/2019
en Replacement of Locking Washer on Nose Wheel04/17/2019
1 en Replacement of Original L3223016 Pin with New L3223316 Pin of Lever Assembly of Nose Landing Gear Steering07/19/2019
en Installation of a 1N5408 Diode to Automatic Bank Control System07/16/2019
Service Bulletins
NameRevisionLangSubjectDate
en Installation of a Fuse into B405 628N or B591 582N Emergency Lighting Panels08/14/2020
1 en Installation of a Fuse into B405 628N or B591 582N Emergency Lighting Panels09/15/2021
en Inspection and Possible Replacement of Bracket in Power Steering of Nose Landing Gear06/18/2020
en Double-Locking of Bolts of Aileron, Elevator and Rudder Trim Tabs Control07/08/2020
en Repair of MA-16K Pressure Gauge Color Marking of Front Baggage Compartment Fire Extinguisher03/10/2021
en Mandatory Main Landing Gear Brakes Inspection and a Replacement of K38-1200-7 Brake Current Pressure Plates Models of Specified Series to New Modified Models of Pressure Plates09/16/2022
1 en Mandatory Main Landing Gear Brakes Inspection and a Replacement of K38-1200-7 Brake Current Pressure Plates Models of Specified Series to New Modified Models of Pressure Plates10/25/2022
2 en Mandatory Main Landing Gear Brakes Inspection and a Replacement of K38-1200-7 Brake Current Pressure Plates Models of Specified Series to New Modified Models of Pressure Plates03/21/2023
en Installation of a Ball Valve into Return Pipe from an Engine Drainage Sump10/08/2020
en Installation of Protective Washers to Prevent Airframe Parts Corrosion10/18/2023
en Installation of a Washer Under Bolt Head of Elevator Hinges05/04/2023
1 en Securing of a Door Handles Slotted Set Screw05/30/2023
en Installation of Teflon (PTFE) Washers Under Screws of Covers10/30/2023
en Sticking of an Identification Label on Swing Arm of Main Landing Gear Leg03/20/2024
2 en Mandatory Nose Landing Gear Inspection and Eventually Replacement of L3 223 016 Pin with New L3 223 316 Pin of Lever Assembly of Nose Landing Gear Steering. Prescription Torque for Installation of Retaining Bolt01/06/2020
en Cancelled Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 03/31/2011
en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 (Annex, Supp1, SuppP2)02/18/2011
1 en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 04/11/2011
en Mandatory Check of Elevator and Rudder Trim Tabs Piano-Hinges09/06/2011
en Mandatory Check of a Nose Landing Gear Bracket11/25/2011
1 en Mandatory Check of a Nose Landing Gear Bracket09/18/2015
en Mandatory Check of Main Spar Caps on Outer Surface of a Wing08/20/2012
en Mandatory Modification of AFM Procedure to Control of Water Injection System03/22/2013
en Mandatory Check and Possible Replacement of Lock Nuts and Washers which Attach Baffle in Middle Fuel Tanks05/13/2015
en Mandatory Check and Possible Replacement of K38-1200.13 Brake Bolts05/18/2015
en Mandatory Check and Possible Replacement of Windshield Wiper Dowels05/28/2014
en Mandatory Nose Landing Gear Inspection and Eventually Replacement of L3 223 016 Pin with New L3 223 316 Pin of Lever Assembly of Nose Landing Gear Steering. Prescription Torque for Installation of Retaining Bolt10/16/2019
1 en Mandatory Nose Landing Gear Inspection and Eventually Replacement of L3 223 016 Pin with New L3 223 316 Pin of Lever Assembly of Nose Landing Gear Steering. Prescription Torque for Installation of Retaining Bolt10/29/2019
en Mandatory Flight Manual for L13A Glider (Do-L13A-1011.1)05/10/1982
en Mandatory Check of Connection Area of Bottom Wiring Suspension with Spar Cap. Review of Glider Operation History06/18/2010
A en Mandatory Flight Manual Holders Shall Replace Old Pages by New Ones Enclosed 10/31/1995
en Mandatory Flight Manual Holders Shall Replace Old Pages by New Ones Enclosed
A en Mandatory Flight Manual Holders Shall Replace Old Pages by New Ones Enclosed
en Cancelled Mandatory Modification of Fuel Gauge Transmitter LUN 1636-803/31/2011
en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 (Annex, Supp1, SuppP2)02/18/2011
1 en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 04/11/2011
en Mandatory Check of a Nose Landing Gear Bracket11/25/2011
1 en Mandatory Check of a Nose Landing Gear Bracket09/18/2015
en Mandatory Check of Main Spar Caps on Outer Surface of a Wing08/20/2012
en Mandatory Check and Appropriate Repair of Sandwich Panel Fixing in Rear Baggage Compartment (Drawing: B590 500N, B590 520N, B592 450N-1, Draw B592 450N-2)06/29/2009
en Cancelled Mandatory Modification of Fuel Gauge Transmitter LUN 1636-803/31/2011
en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 (Annex, Supp1, SuppP2)02/18/2011
1 en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 04/11/2011
en Mandatory Check and Appropriate Replacement of Fire-Extinguishing Ring in Engine Nacelles ((Drawing))04/19/2011
en Mandatory Completion Diode on Horn Clips within Stalling Speed Acoustic Signaling Circuit and on Bell Clips within Engine Fire Detection Circuit06/21/2011
en Mandatory Check of Elevator and Rudder Trim Tabs Piano-Hinges09/06/2011
en Mandatory Check of a Nose Landing Gear Bracket11/25/2011
1 en Mandatory Check of a Nose Landing Gear Bracket12/12/2014
en Mandatory Prohibition of Operation until Nonconforming Part Replacement03/01/2012
en Mandatory Check of Main Spar Caps on Outer Surface of a Wing08/20/2012
en Mandatory Modification of AFM Procedure to Control of Water Injection System03/22/2013
en Mandatory Check and Possible Modification of B560 950N Air Distributor in Engine Nacelles08/14/2013
en Mandatory Engine on Ground Re-Start Procedure09/18/2013
1 en Mandatory Engine on Ground Re-Start Procedure02/28/2014
en Mandatory Check of an Axial Clearance of Front Wing Attachments Bolts and a Possible Modification to Eliminate Axial Clearance05/12/2014
1 en Mandatory Check of an Axial Clearance of Front Wing Attachments Bolts and a Possible Modification to Eliminate Axial Clearance02/10/2016
en Mandatory Check and Possible Replacement of B535 406N Clamps of an Autopilot Rudder Servo Cable04/09/2014
en Mandatory Check and Possible Replacement of Windshield Wiper Dowels07/16/2014
1 en Mandatory Check and Possible Replacement of Windshield Wiper Dowels12/09/2014
2 en Mandatory Check and Possible Replacement of Windshield Wiper Dowels10/06/2015
en Mandatory De-Icing Signal Modification of FA 2200 Flight Data Recorder04/06/2016
en Mandatory Permit of Operation, except of S/N 3005, which Operation is Permitted after Nonconforming Part Replacement02/25/2015
1 en Mandatory Permit of Operation, except of S/N 3005, which Operation is Permitted after Nonconforming Part Replacement04/08/2015
en Mandatory Check and Possible Modification of Installation of B588 019N Gate of Fuel Stop Cocks Levers04/21/2015
2 en Mandatory Check and Possible Replacement of Lock Nuts and Washers which Attach Baffle in Middle Fuel Tanks05/12/2015
1 en Mandatory Cold Expansion of Selected Holes of Landing Gear Spars and Segments of Frames No. 12 and 14 and Pylon on Frame No. 2505/18/2016
2 en Mandatory Cold Expansion of Selected Holes of Landing Gear Spars and Segments of Frames No. 12 and 14 and Pylon on Frame No. 2501/10/2022
en Mandatory Reduction of Bolts Torque of K38-1200-7 Brake05/14/2015
1 en Mandatory Reduction of Bolts Torque of K38-1200-7 Brake10/03/2017
en Mandatory Extension of Registered Parameters of FA 2200 Flight Data Recorder04/01/2016
1 en Mandatory Extension of Registered Parameters of FA 2200 Flight Data Recorder03/04/2021
en Mandatory Restoring Surface Protection of Joint Main Spar Caps on Upper and Lower Outside of Wing between Ribs 10 and 11 on Left and Right08/28/2015
en Mandatory Securing of Retaining Bolt of a Lever Mounting of Nose Landing Gear Steering10/29/2015
en Mandatory Check and Possible Replacement of B640 262N and B640 123N Cables of a Propeller Control07/15/2016
1 en Mandatory Modification of Electrical Circuit of Propeller Pitch Lock System Function Test02/12/2018
2 en Mandatory Modification of Electrical Circuit of the Propeller Pitch Lock System Function Test03/07/2018
en Mandatory Nose Landing Gear Inspection and Eventually Replacement of L3 223 016 Pin with New L3 223 316 Pin of Lever Assembly of Nose Landing Gear Steering. Prescription Torque for Installation of Retaining Bolt10/18/2019
1 en Mandatory Nose Landing Gear Inspection and Eventually Replacement of L3 223 016 Pin with New L3 223 316 Pin of Lever Assembly of Nose Landing Gear Steering. Prescription Torque for Installation of Retaining Bolt10/29/2019
2 en Mandatory Nose Landing Gear Inspection and Eventually Replacement of L3 223 016 Pin with New L3 223 316 pin of Lever Assembly of Nose Landing Gear Steering. Prescription Torque for Installation of Retaining Bolt01/31/2020
en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 (Annex, Supp1, SuppP2)02/18/2011
en Cancelled Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 03/31/2011
1 en Mandatory Modification of Fuel Gauge Transmitter LUN 1636-8 04/11/2011
en Mandatory Check of a Nose Landing Gear Bracket11/25/2011
1 en Mandatory Check of a Nose Landing Gear Bracket09/18/2015
en Mandatory Check of Main Spar Caps on Outer Surface of a Wing08/20/2012
en Mandatory Check and Possible Replacement of Lock Nuts and Washers which Attach Baffle in Middle Fuel Tanks05/13/2015
en Mandatory Reduction of Bolts Torque of K38-1200-7 Brake05/19/2015
1 en Mandatory Reduction of Bolts Torque of K38-1200-7 Brake10/10/2017
1 en Mandatory Nose Landing Gear Inspection and Eventually Replacement of L3 223 016 Pin with New L3 223 316 Pin of Lever Assembly of Nose Landing Gear Steering. Prescription Torque for Installation of Retaining Bolt01/31/2020
Service Letters
NameRevisionLangSubjectDate
en Launch of a New Service Bulletins, Documentation Bulletins and Service Letters Issuing System04/22/2020
en Safety Recommendation of EASA and Manufacturer of M601/HXX Engine Series GE Aviation05/07/2020
en Incorrect Performance of AFM Procedure for Engine Fire Extinguishing05/18/2020
en Edition AFM Instructions in Connection with Issuance of Order to Support AD 2020-0201-E09/24/2020
en Detail Specification of Power Off-Takes (Electrical Loads and Air Bleed) for Execution of GEAC SB SB-H80-73-00-00-0057 / SB-H85-73-00-00-0022 Requiring Fuel Control Unit Functional Check11/03/2020
en L 410 UVP-E20 Instruments/Aggregates Maintenance System Change03/19/2021
en Increasing Usefulness of an Aeroplane04/21/2021
en Check of a Sleeve on the Nose Landing Gear Leg06/24/2021
en Introduction of New Pressure Plates Type of K38-1200-7 Brake02/23/2022
en Calendar Service Life Expiration of Recording Unit FDR-59 B-L07/19/2022
en Check of Connectors Disconnected within Scope of an Engine Removal03/10/2023
en Occurrences of Inter Turbine Temperature (ITT) Exceeding During Engine Starting02/05/2024
en Introduction of a Preheating Procedure for GE Engines in Cold Weather Operations into Engine Operation Manual, P/N 098330212/08/2023
en Information to L-410 Operators Concerning Periodic Application on Fuel Lubricity Improver Additive to Improve Reliability of FCUs Installed on M601 and H-Series Engines02/22/2024
en Eliminating Possibility of Damage to Ailerons and Elevator During Parking Due to Strong Wind02/28/2024
1 en Eliminating Possibility of Damage to Ailerons and Elevator During Parking Due to Strong Wind07/11/2024
en Replacement of Power Module on AC32 Digital Air Data Computer03/11/2024
en Express Analysis Using with PANDA Software03/14/2024
1 en Express Analysis Using with PANDA Software09/20/2024
2 en Express Analysis Using with PANDA Software10/22/2024
3 en Express Analysis Using with PANDA Software01/23/2025
en Possibility of Replacement and Adjustment of LUN 3170-7 Terminal Micro-Switch by an Aircraft Manufacturer Authorized Person04/10/2024
en Possibility of Activation ChartView Option of G3000 Systems12/16/2024
Miscellaneous
NameRevisionLangSubjectDate
en L410 NG MPA - Photogrammetric Scanning, Martime, Surveillance and Patrol Version11/30/2022
en L 410 NG Seawader10/19/2021
en L 410 UVP-E2011/30/2019
en Production Capabilities11/30/2021
en Saety First11/30/2021
en L 410 UVP-E2011/30/2020
en Documentation Bulletin: Issue of Revision 1 of AFM and Revision 1 of CHL05/09/2018
en List of Service Bulletin for L-410 Aeroplanes07/31/2022