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SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE BULLETIN NO. 342 G Supersedes Service Bulletin No. 342F MODELS AFFECTED All fuel injected Lycoming engines indicated in fuel line and clamping diagrams. TIME OF COMPLIANCE Examine fuel lines every 100 hours, annual inspection, overhaul and any time fuel lines or clamps are serviced, removed, or replaced. This Service Bulletin contains procedures for installation, inspection, and corrective SERVICE BULLETIN NO. 480 F Product Support Network. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry. Learn More. SERVICE INSTRUCTION NO. 1324 C Supersedes Service Instruction No. 1324B May 26, 2009 MODELS AFFECTED All direct drive series engines. TIME OF COMPLIANCE At anytime the front crankshaft oil seal is replaced. The two crankcase front bearing oil seals used in Lycoming direct drive engines are the split seal and the solid ring stretch seal. The split seal is open to permit assembly around the crankshaft. SERVICE INSTRUCTION NO. 1427 C Supersedes Service Instruction No. 1427B December 29, 2010 MODELS AFFECTED All fixed wing and rotary wing aircraft (horizontal installations only) with Lycoming reciprocating aircraft engines installed TIME OF COMPLIANCE After field overhaul This Service Instruction identifies the necessary steps for engine breakin, including engine preparation for ground operational tests, SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
LYCOMING.COM
Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. LEANING LYCOMING ENGINES Revision “D” to Service Instruction No. 1094 supersedes all previous recommendations and should be used for engine leaning during normal flight operations. All leaning recommendations are based on calibrated instrumentation. Lycoming strongly recommends that all engine instrumentation be calibrated annually. All instrumentation for manifold pressure, engine RPM, oil SERVICE INSTRUCTION NO. 1009 BE SERVICE INSTRUCTION NO. 1009 BE Time Between Overhaul (TBO) Schedules DATE: April 24, 2020 SUBJECT: Time Between Overhaul (TBO) Schedules MODELS AFFECTED: Lycoming Engine Models Defined Herein REASON FOR REVISION: Added a new paragraph at the end of the Operating Hour Time Period TBO section. Added new engine model IO-390-D to Table 1. Revised Table 2 to include SPECIAL SERVICE PUBLICATION NO. SSP-1776-5 SERVICE TABLE OF LIMITS AND TORQUE VALUE RECOMMENDATIONS DATE RELEASED: April 13, 2020 TITLE: Service Table of Limits and Torque Value Recommendations DOCUMENT PART NUMBER: SSP-1776-5 SERVICE INSTRUCTION NO. 1238 B Supersedes Service Instruction No. 1238A January 6, 2010 MODELS AFFECTED Lycoming turbocharged engines. TIME OF COMPLIANCE When assembling V-band couplings to the engine. V-band couplings are employed by Lycoming on certain airframe applications such as the Piper Malibu and Saratoga or by other airframe manufacturers at various locations in turbocharger exhaust systems. O-360-C4F & -C4P PARTS CATALOG date released: october 1995 title: o-360-c4f parts catalog document part number: pc-306-8 models affected: o-360-c4f & -c4p SERVICE INSTRUCTION NO. 1132 B Supersedes Service Instruction No. 1132A June 18, 2010 MODELS AFFECTED All Lycoming Opposed Series Aircraft Engines with Magnetos. TIME OF COMPLIANCE During Pre-Flight Inspection A basic magneto drop-off check based on engine speed is typically done during the pre-flight inspection to determine the loss of engine speed that occurs when magnetos are switched from BOTH magnetos SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. PROPELLER GROUND STRIKE OR SUDDEN STOPPAGE CAN BE As an engine manufacturer, we are often asked to guide pilots and mechanics concerning what to do about an engine after sudden stoppage, or a ground strike by the propeller. Lycoming Service Bulletin No. 475C states Lycoming’s position concerning this problem. These important publications point out that there may be hidden internal engine damage from such an incident. ENGINE MAINTENANCE MANUAL TEO-540-C1A Engine Maintenance Manual Lycoming Part Number: MM-TEO-540-C1A Rev 2 Contact Us: Mailing Address: Lycoming Engines 652Oliver Street
LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE BULLETIN NO. 342 G Supersedes Service Bulletin No. 342F MODELS AFFECTED All fuel injected Lycoming engines indicated in fuel line and clamping diagrams. TIME OF COMPLIANCE Examine fuel lines every 100 hours, annual inspection, overhaul and any time fuel lines or clamps are serviced, removed, or replaced. This Service Bulletin contains procedures for installation, inspection, and corrective SERVICE BULLETIN NO. 480 F Product Support Network. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry. Learn More. SERVICE INSTRUCTION NO. 1324 C Supersedes Service Instruction No. 1324B May 26, 2009 MODELS AFFECTED All direct drive series engines. TIME OF COMPLIANCE At anytime the front crankshaft oil seal is replaced. The two crankcase front bearing oil seals used in Lycoming direct drive engines are the split seal and the solid ring stretch seal. The split seal is open to permit assembly around the crankshaft. SERVICE INSTRUCTION NO. 1427 C Supersedes Service Instruction No. 1427B December 29, 2010 MODELS AFFECTED All fixed wing and rotary wing aircraft (horizontal installations only) with Lycoming reciprocating aircraft engines installed TIME OF COMPLIANCE After field overhaul This Service Instruction identifies the necessary steps for engine breakin, including engine preparation for ground operational tests, SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE BULLETIN NO. 342 G Supersedes Service Bulletin No. 342F MODELS AFFECTED All fuel injected Lycoming engines indicated in fuel line and clamping diagrams. TIME OF COMPLIANCE Examine fuel lines every 100 hours, annual inspection, overhaul and any time fuel lines or clamps are serviced, removed, or replaced. This Service Bulletin contains procedures for installation, inspection, and corrective SERVICE BULLETIN NO. 480 F Product Support Network. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry. Learn More. SERVICE INSTRUCTION NO. 1324 C Supersedes Service Instruction No. 1324B May 26, 2009 MODELS AFFECTED All direct drive series engines. TIME OF COMPLIANCE At anytime the front crankshaft oil seal is replaced. The two crankcase front bearing oil seals used in Lycoming direct drive engines are the split seal and the solid ring stretch seal. The split seal is open to permit assembly around the crankshaft. SERVICE INSTRUCTION NO. 1427 C Supersedes Service Instruction No. 1427B December 29, 2010 MODELS AFFECTED All fixed wing and rotary wing aircraft (horizontal installations only) with Lycoming reciprocating aircraft engines installed TIME OF COMPLIANCE After field overhaul This Service Instruction identifies the necessary steps for engine breakin, including engine preparation for ground operational tests, SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required.LYCOMING.COM
Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. LEANING LYCOMING ENGINES Revision “D” to Service Instruction No. 1094 supersedes all previous recommendations and should be used for engine leaning during normal flight operations. All leaning recommendations are based on calibrated instrumentation. Lycoming strongly recommends that all engine instrumentation be calibrated annually. All instrumentation for manifold pressure, engine RPM, oil SERVICE INSTRUCTION NO. 1009 BE SERVICE INSTRUCTION NO. 1009 BE Time Between Overhaul (TBO) Schedules DATE: April 24, 2020 SUBJECT: Time Between Overhaul (TBO) Schedules MODELS AFFECTED: Lycoming Engine Models Defined Herein REASON FOR REVISION: Added a new paragraph at the end of the Operating Hour Time Period TBO section. Added new engine model IO-390-D to Table 1. Revised Table 2 to include SPECIAL SERVICE PUBLICATION NO. SSP-1776-5 SERVICE TABLE OF LIMITS AND TORQUE VALUE RECOMMENDATIONS DATE RELEASED: April 13, 2020 TITLE: Service Table of Limits and Torque Value Recommendations DOCUMENT PART NUMBER: SSP-1776-5 SERVICE INSTRUCTION NO. 1238 B Supersedes Service Instruction No. 1238A January 6, 2010 MODELS AFFECTED Lycoming turbocharged engines. TIME OF COMPLIANCE When assembling V-band couplings to the engine. V-band couplings are employed by Lycoming on certain airframe applications such as the Piper Malibu and Saratoga or by other airframe manufacturers at various locations in turbocharger exhaust systems. O-360-C4F & -C4P PARTS CATALOG date released: october 1995 title: o-360-c4f parts catalog document part number: pc-306-8 models affected: o-360-c4f & -c4p SERVICE INSTRUCTION NO. 1132 B Supersedes Service Instruction No. 1132A June 18, 2010 MODELS AFFECTED All Lycoming Opposed Series Aircraft Engines with Magnetos. TIME OF COMPLIANCE During Pre-Flight Inspection A basic magneto drop-off check based on engine speed is typically done during the pre-flight inspection to determine the loss of engine speed that occurs when magnetos are switched from BOTH magnetos SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. PROPELLER GROUND STRIKE OR SUDDEN STOPPAGE CAN BE As an engine manufacturer, we are often asked to guide pilots and mechanics concerning what to do about an engine after sudden stoppage, or a ground strike by the propeller. Lycoming Service Bulletin No. 475C states Lycoming’s position concerning this problem. These important publications point out that there may be hidden internal engine damage from such an incident. ENGINE MAINTENANCE MANUAL TEO-540-C1A Engine Maintenance Manual Lycoming Part Number: MM-TEO-540-C1A Rev 2 Contact Us: Mailing Address: Lycoming Engines 652Oliver Street
LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE BULLETIN NO. 342 G Supersedes Service Bulletin No. 342F MODELS AFFECTED All fuel injected Lycoming engines indicated in fuel line and clamping diagrams. TIME OF COMPLIANCE Examine fuel lines every 100 hours, annual inspection, overhaul and any time fuel lines or clamps are serviced, removed, or replaced. This Service Bulletin contains procedures for installation, inspection, and corrective SERVICE BULLETIN NO. 480 F Product Support Network. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry. Learn More. SERVICE INSTRUCTION NO. 1324 C Supersedes Service Instruction No. 1324B May 26, 2009 MODELS AFFECTED All direct drive series engines. TIME OF COMPLIANCE At anytime the front crankshaft oil seal is replaced. The two crankcase front bearing oil seals used in Lycoming direct drive engines are the split seal and the solid ring stretch seal. The split seal is open to permit assembly around the crankshaft. SERVICE INSTRUCTION NO. 1427 C Supersedes Service Instruction No. 1427B December 29, 2010 MODELS AFFECTED All fixed wing and rotary wing aircraft (horizontal installations only) with Lycoming reciprocating aircraft engines installed TIME OF COMPLIANCE After field overhaul This Service Instruction identifies the necessary steps for engine breakin, including engine preparation for ground operational tests, SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE BULLETIN NO. 342 G Supersedes Service Bulletin No. 342F MODELS AFFECTED All fuel injected Lycoming engines indicated in fuel line and clamping diagrams. TIME OF COMPLIANCE Examine fuel lines every 100 hours, annual inspection, overhaul and any time fuel lines or clamps are serviced, removed, or replaced. This Service Bulletin contains procedures for installation, inspection, and corrective SERVICE BULLETIN NO. 480 F Product Support Network. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry. Learn More. SERVICE INSTRUCTION NO. 1324 C Supersedes Service Instruction No. 1324B May 26, 2009 MODELS AFFECTED All direct drive series engines. TIME OF COMPLIANCE At anytime the front crankshaft oil seal is replaced. The two crankcase front bearing oil seals used in Lycoming direct drive engines are the split seal and the solid ring stretch seal. The split seal is open to permit assembly around the crankshaft. SERVICE INSTRUCTION NO. 1427 C Supersedes Service Instruction No. 1427B December 29, 2010 MODELS AFFECTED All fixed wing and rotary wing aircraft (horizontal installations only) with Lycoming reciprocating aircraft engines installed TIME OF COMPLIANCE After field overhaul This Service Instruction identifies the necessary steps for engine breakin, including engine preparation for ground operational tests, SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required.LYCOMING.COM
Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. LEANING LYCOMING ENGINES Revision “D” to Service Instruction No. 1094 supersedes all previous recommendations and should be used for engine leaning during normal flight operations. All leaning recommendations are based on calibrated instrumentation. Lycoming strongly recommends that all engine instrumentation be calibrated annually. All instrumentation for manifold pressure, engine RPM, oil SERVICE INSTRUCTION NO. 1009 BE SERVICE INSTRUCTION NO. 1009 BE Time Between Overhaul (TBO) Schedules DATE: April 24, 2020 SUBJECT: Time Between Overhaul (TBO) Schedules MODELS AFFECTED: Lycoming Engine Models Defined Herein REASON FOR REVISION: Added a new paragraph at the end of the Operating Hour Time Period TBO section. Added new engine model IO-390-D to Table 1. Revised Table 2 to include SPECIAL SERVICE PUBLICATION NO. SSP-1776-5 SERVICE TABLE OF LIMITS AND TORQUE VALUE RECOMMENDATIONS DATE RELEASED: April 13, 2020 TITLE: Service Table of Limits and Torque Value Recommendations DOCUMENT PART NUMBER: SSP-1776-5 SERVICE INSTRUCTION NO. 1238 B Supersedes Service Instruction No. 1238A January 6, 2010 MODELS AFFECTED Lycoming turbocharged engines. TIME OF COMPLIANCE When assembling V-band couplings to the engine. V-band couplings are employed by Lycoming on certain airframe applications such as the Piper Malibu and Saratoga or by other airframe manufacturers at various locations in turbocharger exhaust systems. O-360-C4F & -C4P PARTS CATALOG date released: october 1995 title: o-360-c4f parts catalog document part number: pc-306-8 models affected: o-360-c4f & -c4p SERVICE INSTRUCTION NO. 1132 B Supersedes Service Instruction No. 1132A June 18, 2010 MODELS AFFECTED All Lycoming Opposed Series Aircraft Engines with Magnetos. TIME OF COMPLIANCE During Pre-Flight Inspection A basic magneto drop-off check based on engine speed is typically done during the pre-flight inspection to determine the loss of engine speed that occurs when magnetos are switched from BOTH magnetos SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. PROPELLER GROUND STRIKE OR SUDDEN STOPPAGE CAN BE As an engine manufacturer, we are often asked to guide pilots and mechanics concerning what to do about an engine after sudden stoppage, or a ground strike by the propeller. Lycoming Service Bulletin No. 475C states Lycoming’s position concerning this problem. These important publications point out that there may be hidden internal engine damage from such an incident. ENGINE MAINTENANCE MANUAL TEO-540-C1A Engine Maintenance Manual Lycoming Part Number: MM-TEO-540-C1A Rev 2 Contact Us: Mailing Address: Lycoming Engines 652Oliver Street
LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1443 R APPROVED SLICK MAGNETOS ON LYCOMING ENGINES DATE: April 16, 2020 SUBJECT: Approved Slick Magnetos on Lycoming Engines MODELS AFFECTED: See Table 1 TIME OF COMPLIANCE: Not applicable REASON FOR REVISION: Added listings for IO-390-D Series engines to Table 1. Corrected errors in Table 1. Added new Tables 5 and 6 to include Lycoming EISSystems.
SERVICE INSTRUCTION NO. 1014N Supersedes Service Instruction No. 1014M DATE: July 29, 2020 MODELS AFFECTED All Lycoming opposed series aircraft engines. TIME OF COMPLIANCE When preservation oil is removed or when lubricating oil is changed or added. REASON FOR SERVICE INSTRUCTION NO. 1060 U SI-1060U – PUSH ROD IDENTIFICATION DATE: April 22, 2020 SUBJECT: Push Rod Identification MODELS AFFECTED: All Lycoming aircraft engines. TIME OF COMPLIANCE: Anytime push rod replacement is necessary. REASON FOR REVISION: Added IO-390-D to Tables 2 and 4. Revised CAUTION and NOTICE on page 1. SERVICE INSTRUCTION NO. 1070 AB SPECIFIED FUELS FOR SPARK-IGNITED GASOLINE AIRCRAFT ENGINE MODELS DATE: April 8, 2020 SUBJECT: Specified Fuels for Spark-Ignited Gasoline Aircraft Engine Models MODELS AFFECTED: Lycoming engine models as detailed in Table 3 TIME OF COMPLIANCE: When refueling aircraft REASON FOR REVISION: Added listings for IO-390-D to Table 3 SERVICE BULLETIN NO. 301 B MAINTENANCE PROCEDURES AND SERVICE LIMITATIONS FOR VALVES DATE: February 18, 1977 MODELS AFFECTED: All Avco Lycoming opposed series aircraft engines. TIME OF COMPLIANCE: During periodic maintenance and when intake and exhaust valves are removed from cylinders. SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 240 W Supersedes Service Bulletin No. 240V February 23, 2012 MODELS AFFECTED All Lycoming reciprocating aircraft engines TIME OF COMPLIANCE As specified in the Service Bulletin LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1443 R APPROVED SLICK MAGNETOS ON LYCOMING ENGINES DATE: April 16, 2020 SUBJECT: Approved Slick Magnetos on Lycoming Engines MODELS AFFECTED: See Table 1 TIME OF COMPLIANCE: Not applicable REASON FOR REVISION: Added listings for IO-390-D Series engines to Table 1. Corrected errors in Table 1. Added new Tables 5 and 6 to include Lycoming EISSystems.
SERVICE INSTRUCTION NO. 1014N Supersedes Service Instruction No. 1014M DATE: July 29, 2020 MODELS AFFECTED All Lycoming opposed series aircraft engines. TIME OF COMPLIANCE When preservation oil is removed or when lubricating oil is changed or added. REASON FOR SERVICE INSTRUCTION NO. 1060 U SI-1060U – PUSH ROD IDENTIFICATION DATE: April 22, 2020 SUBJECT: Push Rod Identification MODELS AFFECTED: All Lycoming aircraft engines. TIME OF COMPLIANCE: Anytime push rod replacement is necessary. REASON FOR REVISION: Added IO-390-D to Tables 2 and 4. Revised CAUTION and NOTICE on page 1. SERVICE INSTRUCTION NO. 1070 AB SPECIFIED FUELS FOR SPARK-IGNITED GASOLINE AIRCRAFT ENGINE MODELS DATE: April 8, 2020 SUBJECT: Specified Fuels for Spark-Ignited Gasoline Aircraft Engine Models MODELS AFFECTED: Lycoming engine models as detailed in Table 3 TIME OF COMPLIANCE: When refueling aircraft REASON FOR REVISION: Added listings for IO-390-D to Table 3 SERVICE BULLETIN NO. 301 B MAINTENANCE PROCEDURES AND SERVICE LIMITATIONS FOR VALVES DATE: February 18, 1977 MODELS AFFECTED: All Avco Lycoming opposed series aircraft engines. TIME OF COMPLIANCE: During periodic maintenance and when intake and exhaust valves are removed from cylinders. SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 240 W Supersedes Service Bulletin No. 240V February 23, 2012 MODELS AFFECTED All Lycoming reciprocating aircraft engines TIME OF COMPLIANCE As specified in the Service Bulletin SERVICE BULLETIN NO. 369 S ENGINE INSPECTION AFTER OVERSPEED DATE: April 9, 2020 SUBJECT: Engine Inspection after Overspeed MODELS AFFECTED: All Lycoming piston engines. TIME OF COMPLIANCE: As required by the subject bulletin. REASON FOR REVISION: Added new engine model IO-390-D to Table 1. Added new steps in Table 4 to include EIS Overspeed. Added a new NOTICE before the Magneto Overspeed SERVICE INSTRUCTION NO 1037-W SERVICE INSTRUCTION NUMBER 1037 W SUBJECT Approved Pistons, Rings, Cylinders, and Gasket Set Application for Use on Lycoming Aircraft Engines DATE April 29, 2020 MODELS AFFECTED All Lycoming opposed series aircraft engines in Table 2 TIME OF COMPLIANCE When installing new rings, pistons, valves and cylinders REASON FOR REVISION Added IO-390-D series to Seal and Gasket set SERVICE BULLETIN NO. 301 B MAINTENANCE PROCEDURES AND SERVICE LIMITATIONS FOR VALVES DATE: February 18, 1977 MODELS AFFECTED: All Avco Lycoming opposed series aircraft engines. TIME OF COMPLIANCE: During periodic maintenance and when intake and exhaust valves are removed from cylinders. SERVICE INSTRUCTION NO. 1011N Tappets and Lifters DATE: January 7, 2019 SUBJECT: Tappets and Lifters MODELS AFFECTED: All Lycoming engines TIME OF COMPLIANCE: At overhaul or at owner’s discretion REASON FOR REVISION: Added new engine model, TEO-540 Series to Table 3. SERVICE BULLETIN NO. 240 W Supersedes Service Bulletin No. 240V February 23, 2012 MODELS AFFECTED All Lycoming reciprocating aircraft engines TIME OF COMPLIANCE As specified in the Service Bulletin SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE INSTRUCTION NO. 1523 G Supersedes Service Instruction No. 1523F March 16, 2016 MODELS AFFECTED Refer to Table 1 in attached Instruction TIME OF COMPLIANCE As Required for Replacement REASON FOR REVISION Added carburetor part numbers to Table 1 This Service Instruction identifies carburetors from specific manufacturers currently available for Lycoming enginemodels.
SERVICE INSTRUCTION NO. 1187 J TIME OF COMPLIANCE. On newly installed engines; before aircraft is flown. Also recommended at 100 hour inspection or at owner's discretion. Although engines are thoroughly tested after manufacture, it is impossible to duplicate the individual installation characteristics an engine will encounter in the aircraft; consequently, the density SERVICE INSTRUCTION NO. 1238 B Supersedes Service Instruction No. 1238A January 6, 2010 MODELS AFFECTED Lycoming turbocharged engines. TIME OF COMPLIANCE When assembling V-band couplings to the engine. V-band couplings are employed by Lycoming on certain airframe applications such as the Piper Malibu and Saratoga or by other airframe manufacturers at various locations in turbocharger exhaust systems. SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. LYCOMING TRAINING COURSES Training Dates in 2021: Click Here to View 2021 Engine School Dates. Lumley Aviation Center. Williamsport Regional Airport. 500 Airport Rd. Montoursville, PA 17754. If you have questions regarding Lycoming's Piston Engine Service School program, please contact Pennsylvania College of Technology at +1-570-327-4775. Register Now. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE INSTRUCTION NO. 1324 C Supersedes Service Instruction No. 1324B May 26, 2009 MODELS AFFECTED All direct drive series engines. TIME OF COMPLIANCE At anytime the front crankshaft oil seal is replaced. The two crankcase front bearing oil seals used in Lycoming direct drive engines are the split seal and the solid ring stretch seal. The split seal is open to permit assembly around the crankshaft. SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 480 F Product Support Network. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry. Learn More. SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 240 W Supersedes Service Bulletin No. 240V February 23, 2012 MODELS AFFECTED All Lycoming reciprocating aircraft engines TIME OF COMPLIANCE As specified in the Service Bulletin SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. LYCOMING.COMTECHNICAL PUBLICATIONSENGINESNEWS & EVENTSCONTACT & SUPPORTFIND A DISTRIBUTORIE2 PORTAL Be the first to know what's new, in the air and on the ground. Sign-up for the Lycoming Flyer E-Newsletter. LYCOMING TRAINING COURSES Training Dates in 2021: Click Here to View 2021 Engine School Dates. Lumley Aviation Center. Williamsport Regional Airport. 500 Airport Rd. Montoursville, PA 17754. If you have questions regarding Lycoming's Piston Engine Service School program, please contact Pennsylvania College of Technology at +1-570-327-4775. Register Now. SERVICE INSTRUCTION NO. 1042 AH APPROVED SPARK PLUGS DATE: April 9, 2020 SUBJECT: Approved Spark Plugs MODELS AFFECTED: All Lycoming piston aircraft engines TIME OF COMPLIANCE: As required for replacement REASON FOR REVISION: Added new engine model IO-390-D to Tables 4 and 5. SERVICE INSTRUCTION NO. 1191 A Supersedes Service Instruction No. 1191 September 28, 1998 MODELS AFFECTED All Lycoming aircraft engines. TIME OF COMPLIANCE As required to determine cylinder compression The condition of the working parts in the combustion chamber of a cylinder can be determined by measuring the static leak rate of the cylinder as compared to the leak rate through an orifice of specified SERVICE INSTRUCTION NO. 1324 C Supersedes Service Instruction No. 1324B May 26, 2009 MODELS AFFECTED All direct drive series engines. TIME OF COMPLIANCE At anytime the front crankshaft oil seal is replaced. The two crankcase front bearing oil seals used in Lycoming direct drive engines are the split seal and the solid ring stretch seal. The split seal is open to permit assembly around the crankshaft. SERVICE BULLETIN NO. 632 B DATE: August 4, 2017 MODELS AFFECTED: (1) Engines with a serial number listed in Table 1 of this Service Bulletin (2) Engines that have been overhauled or repaired that could contain connecting rod assemblies or connecting rod bushings shipped from Lycoming during dates identified in Table 2 of this Service Bulletin TIME OF COMPLIANCE: Within the next 10 hours of engine SERVICE BULLETIN NO. 480 F Product Support Network. Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry. Learn More. SERVICE BULLETIN NO. 388 C Supersedes Service Bulletin No. 388B and Supplement No. 1 to Service Bulletin No. 388B November 22, 2004 TIME OF COMPLIANCE Helicopter Engines – 300 hour intervals or earlier if valve sticking suspected. All Other Engines – 400 hour intervals or earlier if valve sticking suspected until exhaust valve guides are replaced with guides made ofimproved material.
SERVICE BULLETIN NO. 240 W Supersedes Service Bulletin No. 240V February 23, 2012 MODELS AFFECTED All Lycoming reciprocating aircraft engines TIME OF COMPLIANCE As specified in the Service Bulletin SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required.LYCOMING EIS
The Lycoming EIS was developed by SureFly Partners, Ltd. with input from Lycoming’s engineering teams to meet Lycoming’s exacting specifications. With over two years of research and development, including exhaustive endurance and durability testing, the Lycoming EIS is the only electronic ignition system on the market with theproven
LYCOMING TRAINING COURSES Training Dates in 2021: Click Here to View 2021 Engine School Dates. Lumley Aviation Center. Williamsport Regional Airport. 500 Airport Rd. Montoursville, PA 17754. If you have questions regarding Lycoming's Piston Engine Service School program, please contact Pennsylvania College of Technology at +1-570-327-4775. Register Now. LEANING LYCOMING ENGINES Revision “D” to Service Instruction No. 1094 supersedes all previous recommendations and should be used for engine leaning during normal flight operations. All leaning recommendations are based on calibrated instrumentation. Lycoming strongly recommends that all engine instrumentation be calibrated annually. All instrumentation for manifold pressure, engine RPM, oil SERVICE INSTRUCTION NO. 1070 AB SPECIFIED FUELS FOR SPARK-IGNITED GASOLINE AIRCRAFT ENGINE MODELS DATE: April 8, 2020 SUBJECT: Specified Fuels for Spark-Ignited Gasoline Aircraft Engine Models MODELS AFFECTED: Lycoming engine models as detailed in Table 3 TIME OF COMPLIANCE: When refueling aircraft REASON FOR REVISION: Added listings for IO-390-D to Table 3 SERVICE INSTRUCTION NO. 1009 BE SERVICE INSTRUCTION NO. 1009 BE Time Between Overhaul (TBO) Schedules DATE: April 24, 2020 SUBJECT: Time Between Overhaul (TBO) Schedules MODELS AFFECTED: Lycoming Engine Models Defined Herein REASON FOR REVISION: Added a new paragraph at the end of the Operating Hour Time Period TBO section. Added new engine model IO-390-D to Table 1. Revised Table 2 to include SERVICE BULLETIN NO. 342 G Supersedes Service Bulletin No. 342F MODELS AFFECTED All fuel injected Lycoming engines indicated in fuel line and clamping diagrams. TIME OF COMPLIANCE Examine fuel lines every 100 hours, annual inspection, overhaul and any time fuel lines or clamps are serviced, removed, or replaced. This Service Bulletin contains procedures for installation, inspection, and corrective SERVICE BULLETIN NO. 240 W Supersedes Service Bulletin No. 240V February 23, 2012 MODELS AFFECTED All Lycoming reciprocating aircraft engines TIME OF COMPLIANCE As specified in the Service Bulletin SERVICE INSTRUCTION NO. 1523 G Supersedes Service Instruction No. 1523F March 16, 2016 MODELS AFFECTED Refer to Table 1 in attached Instruction TIME OF COMPLIANCE As Required for Replacement REASON FOR REVISION Added carburetor part numbers to Table 1 This Service Instruction identifies carburetors from specific manufacturers currently available for Lycoming enginemodels.
SERVICE BULLETIN NO. 475 C Supersedes Service Bulletin No. 475B January 30, 2003 MODELS AFFECTED All Lycoming direct drive piston aircraft engines (including VO-360 and IVO-360; excepting O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E, and TIO-541 series engines). TIME OF COMPLIANCE During overhaul, after a propeller strike, or whenever crankshaft gear removal is required. SERVICE BULLETIN NO. 524 (Supersedes Service Bulletin No. 381, Service Bulletin No. 385, Service Bulletin No. 454B, Service Bulletin No. 455D, and Service Bulletin No. 456F) DATE: September 1, 1995 MODELS AFFECTED See attached Lists I and II for specific models and serial numbers. All new, overhauled and remanufactured engines shipped from the factory after March 31, 1985 are in compliance with this__ Log in
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