# Lycoming LTIO-540-J2B - Type: Engine model (FAA registry) - Registry code: 41979 - Manufacturer (registry): LYCOMING - Model: LTIO-540-J2B - Engine type: Reciprocating - Power: 350 hp - Data sheet: [TCDS E14EA](https://openairdocs.org/tcds/E14EA) (OpenAirDocs) - Holder: Lycoming Engines - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/lycoming-ltio-540-j2b Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026 - [AD 2022-16-03](https://openairdocs.org/ad/2022-16-03): Engine (RECIPROCATING) · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 236 more. Effective Aug 15, 2022 - [AD 2017-16-11](https://openairdocs.org/ad/2017-16-11): Reciprocating Engine Power Section · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-360-B1G6 and 93 more. Effective Aug 15, 2017 - [AD 2015-19-07](https://openairdocs.org/ad/2015-19-07): Fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 187 more. Effective Nov 3, 2015 - [AD 2012-19-01](https://openairdocs.org/ad/2012-19-01): Crankshafts · Lycoming Engines AEIO-360-A1A, AEIO-360-A1B, AEIO-360-A1B6 and 321 more. Effective Oct 24, 2012 - [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012 - [AD 2010-07-08](https://openairdocs.org/ad/2010-07-08): Turbochargers · Kelly Aerospace Energy Systems HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 137 more. Effective Apr 19, 2010 - [AD 2009-02-03](https://openairdocs.org/ad/2009-02-03): Fuel injection servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 261 more. Effective Feb 9, 2009 - [AD 2008-08-17](https://openairdocs.org/ad/2008-08-17): Turbocharger turbine housing flange and the exhaust tube flange · Teledyne Continental Motors TSIOL-550-A 'Liquid-Cooled' engines (RAM Aircraft Limited Partnership STC SA7633SW or SA7633SW-D). Effective May 6, 2008 - [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004 - [AD 2004-05-24](https://openairdocs.org/ad/2004-05-24): Zinc-plated Crankshaft Gear Retaining Bolts · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 161 more. Effective Mar 30, 2004 - [AD 2003-14-03](https://openairdocs.org/ad/2003-14-03): Rotary fuel pumps · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 262 more. Effective Aug 14, 2003 - [AD 2002-19-03](https://openairdocs.org/ad/2002-19-03): Crankshaft · Lycoming Engines IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5 and 81 more. Effective Sep 20, 2002 - [AD 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997 - [AD 97-01-04](https://openairdocs.org/ad/97-01-04): Cylinder assemblies · Lycoming Engines IO-540-M1B5D, LTIO-540-F2BD, LTIO-540-J2B and 10 more. Effective Apr 22, 1997 - [AD 95-07-01](https://openairdocs.org/ad/95-07-01): Connecting Rod Bolt · Lycoming Engines AEIO-360-A1E, AEIO-360-B1G6, AEIO-360-H1A and 177 more. Effective Apr 12, 1995 - [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992 - [AD 91-08-07](https://openairdocs.org/ad/91-08-07): Fuel Pump · Lycoming Engines TIO-360-A1A, TIO-360-A1B, TIO-360-A3B6 and 51 more. Effective May 6, 1991 Historical (superseded or no longer in force): - [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024 - [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012 - [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011 - [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008 - [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008 - [AD 2008-06-51](https://openairdocs.org/ad/2008-06-51) (historical): Fuel injection servo plugs · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 235 more - [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10) (historical): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more. Effective Jan 31, 2006 - [AD 2002-26-01](https://openairdocs.org/ad/2002-26-01) (historical): Fuel injector fuel lines · Textron Lycoming, AVCO IGO-480-A1B6, IGO-540-B1A, IGO-540-B1C and 178 more. Effective Jan 31, 2003 - [AD 2002-23-06](https://openairdocs.org/ad/2002-23-06) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, AEIO-540-D4A5, AEIO-540-D4B5 and 46 more. Effective Nov 19, 2002 - [AD 2002-20-51](https://openairdocs.org/ad/2002-20-51) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, IO-540 Series (all), LTIO-540-F2BD and 39 more - [AD 2002-17-53](https://openairdocs.org/ad/2002-17-53) (historical): Crankshaft · Lycoming Engines LTIO-540-F2BD, LTIO-540-J2B, LTIO-540-J2BD and 36 more - [AD 2002-04-51](https://openairdocs.org/ad/2002-04-51) (historical): Crankshaft · Lycoming Engines LTIO-540-F2BD, LTIO-540-J2B, LTIO-540-J2BD and 8 more - [AD 98-18-12](https://openairdocs.org/ad/98-18-12) (historical): Fuel Pump · Textron Lycoming, AVCO AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 249 more. Effective Sep 28, 1998 ## Information bulletins (advisory) (6) - [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019 - [SAIB NE-08-32R1](https://openairdocs.org/saib/NE-08-32R1): Propeller Governor Idler Gear Shaft Set Screw. Issued May 13, 2016 - [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014 - [SAIB NE-09-04](https://openairdocs.org/saib/NE-09-04): Fuel Control/Reciprocating Engines. Issued Jan 10, 2009 - [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft. Issued Sep 10, 2008 - [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008 ## Registered aircraft None registered with this engine model now. ## NTSB investigations None matched to aircraft with this engine model. ## FAA accident and incident reports None matched to aircraft with this engine model. ## Service difficulty reports (39) As reported by operators and repair stations, by the model named in the report. - [SDR WVBA2024101501](https://openairdocs.org/sdr/WVBA2024101501), Oct 8, 2024: BUSS BAR. LOOSE. LEFT AND RIGHT VOLTAGE REGULATOR AND GROUND VENT FAN CIRCUIT BREAKERS ALL TRIPPED SIMULTANEOUSLY DURING FLIGHT AND WOULD NOT RESET. AIRCRAFT RETURNED TO FAI WIT - [SDR 2024FA0000939](https://openairdocs.org/sdr/2024FA0000939), Jul 25, 2024: WASTEGATE VALVE. PERFORATED. DENSITY CONTROLLER FAILED. RESULTED IN ROLLBACK OF ENGINE POWER TO ~30" MANIFOLD PRESSURE. LOSS OF TURBO BOOST. SUSPECTED PART WAS RETURNED TO LYCOMING FOR TEST - [SDR 2023FA0000437](https://openairdocs.org/sdr/2023FA0000437), Aug 16, 2023: LINK. UNSERVICEABLE. UPON LANDING, NOSE GEAR COLLAPSED ------ PILOT REPORTS ON APPROACH HE HAD THREE GREEN LIGHTS INDICATING GEAR WAS DOWN AND LOCKED AND NO EVIDENCE OF ANY ISSUES. - [SDR 1SMA2022121400517](https://openairdocs.org/sdr/1SMA2022121400517), Dec 14, 2022: HOSE. LEAKING. DURING CRUISE, PILOT NOTICED RT ENGINE OIL PRESSURE INDICATED ZERO PSI. NEAREST AIRPORT WAS AT DESTINATION, APPROX 30 MILES AWAY. PILOT DID NOT SEE ANY ABNORMAL - [SDR 1SMA20221214001](https://openairdocs.org/sdr/1SMA20221214001), Dec 14, 2022: HOSE. LEAKING. DURING CRUISE FLIGHT, THE PILOT NOTICED THE RIGHT ENGINE OIL PRESSURE SUDDENLY INDICATED 0 PSI. THE NEAREST AIRPORT WAS THE DESTINATION AIRPORT APPROXIMATELY 30 - [SDR 2022F00233](https://openairdocs.org/sdr/2022F00233), Apr 19, 2022: NONE. DIRTY. PILOT REPORTED DURING LANDING THAT THE LEFT LANDING GEAR DOWN & LOCK LIGHT DID NOT ILLUMINATE AT DEPLOYMENT. AN "EMERGENCY LANDING GEAR EXTENSION" WAS PERFORMED - [SDR 2021F00333](https://openairdocs.org/sdr/2021F00333), Nov 24, 2021: TURBOCHARGER. BROKEN. PILOT WAS IN CRUISE FLIGHT AND EXPERIENCED A PARTIAL POWER LOSS AND THEN OIL PRESSURE LOSS OF THE RIGHT ENGINE. PILOT SHUT DOWN ENGINE AND LANDED WITHOUT FURTHE - [SDR 3JPA2020120940001](https://openairdocs.org/sdr/3JPA2020120940001), Dec 4, 2020: PUSHROD. BENT. ON THE EVENING OF 12-4-2020 OUR PIPER NAVAJO (PA-31-350) N34WM WAS RETURNING FROM PAQT TO PASC. PILOT REPORTED THAT ON APPROACH HE NOTICED WHAT SEEMED LIKE A SL - [SDR EPUA2019040331001](https://openairdocs.org/sdr/EPUA2019040331001), Mar 31, 2019: TUBE. LOOSE. PILOT REPORTED " RIGHT ENGINE FAILURE ON TAKEOFF". MAINTENANCE INSPECTED THE RIGHT ENGINE AND DETERMINED THAT THE HARDWARE FOR #2 ENGINE , #2 CYLINDER INTAKE TU - [SDR WVBA201812287001](https://openairdocs.org/sdr/WVBA201812287001), Dec 16, 2018: TRANSMITTER. FAILED. PILOT REPORTED, "RT OUTBOARD FUEL GAUGE READS FULL CLOCKWISE - ALL THE TIME." FUEL QUANTITY SYSTEM WAS DEFERRED PER MEL 28-4 "FUEL QUANTITY INDICATORS" ON DMR # - [SDR JIKA2018020201](https://openairdocs.org/sdr/JIKA2018020201), Feb 2, 2018: ENGINE. FAILED. THE PILOT REPORTED ON CLIMB OUT FROM KABQ THAT THE AIRCRAFT’S RIGHT ENGINE MANIFOLD PRESSURE WAS DECREASING AS THE THROTTLE WAS INCREASED. THEN THE RIGHT OIL PR - [SDR EPUA20171117001](https://openairdocs.org/sdr/EPUA20171117001), Nov 17, 2017: ENGINE. SURGES. SHORTLY AFTER TAKE OFF OUT OF UNK THE RIGHT ENGINE ON THE AIRCRAFT STARTED TO SURGE SEVERELY AND THE PIC DECLARED AN EMERGENCY AND RETURNED TO UNK. PIC REDUCED - [SDR 2017FA0000290](https://openairdocs.org/sdr/2017FA0000290), Jul 18, 2017: LINE. FAILED. OIL COOLER OIL LINE FAILED CAUSING OIL PRESSURE TO DROP. PILOT SHUT THE ENGINE DOWN AND RETURNED TO BASE. - [SDR YAXA2017071101](https://openairdocs.org/sdr/YAXA2017071101), Jul 10, 2017: PUMP. LEAKING. ENGINE WOULD NOT SHUT DOWN WITH MIXTURE CONTROL AT IDLE CUTOFF. FOUND ENGINE DRIVEN FUEL PUMP LEAKING FROM RELIEF VALVE INTO DECK PRESSURE REFERENCE LINE INTO I - [SDR YAXA2016032502](https://openairdocs.org/sdr/YAXA2016032502), Mar 24, 2016: FITTING. MISALIGNED. THIS ENG WAS RECEIVED IN OVERHAULED CONDITION IN PREPARATION FOR INSTALLATION ON THE ACFT. DURING INSPECTION OF THIS ENG PRIOR TO INSTALLATION ON ACFT, IT WAS F - [SDR YAXA2016021601](https://openairdocs.org/sdr/YAXA2016021601), Feb 15, 2016: CYLINDER. CRACKED. DURING A ROUTINE 100 HOUR INSPECTION, BLUE FUEL STAINING WAS FOUND ON THE TOP INTAKE SIDE OF THE NR 5 CYLINDER. CLOSER EXAMINATION REVEALED THAT THE CYLINDER WA - [SDR YAXA2015120801](https://openairdocs.org/sdr/YAXA2015120801), Nov 30, 2015: DISTRIBUTOR BLK. LOOSE. THE RT MAGNETO WAS REMOVED TO ACCESS A HYD PUMP. WHILE THE MAGNETO WAS REMOVED, THE DISTRIBUTOR WAS INSPECTED FOR LOOSENESS OF THE BUSHING DUE TO PREVIOUS FAILU - [SDR YAXA2015120803](https://openairdocs.org/sdr/YAXA2015120803), Nov 11, 2015: CYLINDER HEAD. CRACKED. DURING A ROUTINE 100 HOUR INSPECTION, THE NR 2 CYLINDER ON THE RT ENG WAS FOUND TO BE CRACKED IN THE INTAKE PORT, BETWEEN THE 14TH & 15TH COOLING FINS. THE TELL - [SDR YAXA2015110201](https://openairdocs.org/sdr/YAXA2015110201), Nov 2, 2015: DISTRIBUTOR BLK. LOOSE. DURING CLIMB, THE RT ENG BEGAN TO RUN ROUGH & EXPERIENCED HIGH OIL & CYLINDER HEAD TEMPS. RETURNED TO THE DEPARTURE AIRPORT. PRELIMINARY INSPECTION SHOWED ALL R - [SDR YAXA2015110202](https://openairdocs.org/sdr/YAXA2015110202), Nov 2, 2015: PUMP. LEAKING. WHILE REPLACING A FAULTY MAGNETO, THE ENG DRIVEN FUEL PUMP WAS OBSERVED TO BE LEAKING FUEL FROM THE SEAL CAVITY, WHEN TURNING THE FUEL BOOST PUMP ON OR OFF, BUT - [SDR JIKA201602230001](https://openairdocs.org/sdr/JIKA201602230001), Oct 16, 2015: PUMP. MALFUNCTIONED. THE ENG OVERHAUL SHOP PERFORMED A COMPLETE TEAR DOWN & EVALUATION OF THE ENG DUE TO METAL IN THE OIL FILTER. TEAR DOWN REPORT SHOWED NO VISIBLE CAUSE FOR THE ME - [SDR YAXA2015091405](https://openairdocs.org/sdr/YAXA2015091405), Sep 7, 2015: CYLINDER. CRACKED. AFTER FINDING NR 6 & NR 4 CYLINDERS CRACKED, REFERENCE SDR YAX15091403 & YAX15091404, WE INSPECTED ALL OTHER CYLINDERS & FOUND NR 1 CRACKED AS WELL. THE TELLTAL - [SDR YAXA2015091403](https://openairdocs.org/sdr/YAXA2015091403), Sep 6, 2015: CYLINDER. CRACKED. DURING CLIMB, THE PILOT REPORTED CHT ON THE NR 2 ENG WAS 450° & CLIMBING. HE EXECUTED A PRECAUTIONARY LANDING AT THE DEPARTURE AIRPORT. THE NR 6 CYLINDER, WHERE - [SDR YAXA2015091404](https://openairdocs.org/sdr/YAXA2015091404), Sep 6, 2015: CYLINDER. CRACKED. AFTER FINDING NR 6 CYLINDER CRACKED, REFERENCE SDR YAX15091403, WE INSPECTED ALL OTHER CYLINDERS & FOUND NR 4 CRACKED AS WELL. THE TELLTALE SIGN WAS BLUE FUEL S - [SDR 2015F00073](https://openairdocs.org/sdr/2015F00073), May 21, 2015: MAGNETO. DEFECTIVE. FACTORY REBUILT MAGNETOS NEW OUT OF THE BOX ARE ARRIVING WITH NO GREASE ON THE DISTRIBUTOR GEARS AND THEY ALSO LACK OIL ON THE DISTRIBUTOR GEAR FELTS. THERE IS - [SDR CA140903014](https://openairdocs.org/sdr/CA140903014), Sep 3, 2014: FITTING. CRACKED. (CAN) DURING GEAR INSPECTION FITTING FOUND WITH WORN BUSHING . FITTING REPLACED WITH SERVICEABLE PART UPON POINT STRIPPING FOR BUSHING REPLACEMENT FITTING FOUND - [SDR YAXA2015091401](https://openairdocs.org/sdr/YAXA2015091401), Sep 3, 2014: PUMP. LEAKING. WHILE ACFT WAS PARKED IN HANGAR, THE ACFT WAS OBSERVED TO HAVE FUEL DRIPPING FROM THE ENG ACCESSORY DRIVE DRAIN LINE. THE ENG DRIVEN FUEL PUMP WAS FOUND TO HAVE - [SDR 2014FA0000604](https://openairdocs.org/sdr/2014FA0000604), Aug 6, 2014: CYLINDER. SEPARATED. DURING CRUISE AT 6000 FT, RT ENGINE SOUND CHANGED , LOST A SMALL AMOUNT OF POWER, PILOT ADDED POWER, FIVE MINUTES LATER OIL APPEARED ON COWLING, AGAIN LOST MORE - [SDR JIKA2014012801](https://openairdocs.org/sdr/JIKA2014012801), Jan 28, 2014: CYLINDER. FAULTY. DURING CLIMB OUT 100 FT PRIOR TO LEVEL OFF IN CRUISE 3000 MSL, RT ENG BEGAN TO SURGE ± 200 RPM. PILOT TURNED ON ELEC FUEL PUMPS & ADDED FULL FUEL MIXTURE, PROP - [SDR CA130328013](https://openairdocs.org/sdr/CA130328013), Mar 27, 2013: HOUSING. CRACKED. (CAN) DURING LANDING GEAR SWINGS TO RECTIFY GEAR INDICATION DEFECT, HYDRAULIC FLUID WAS FOUND LEAKING FROM THE NR 1 MLG HYDRAULIC ACTUATOR, OZONE P2329-3. UPON - [SDR T8VA20130215001](https://openairdocs.org/sdr/T8VA20130215001), Feb 15, 2013: DOWNLOCK HOOK. STICKING. NO GREEN LIGHT INDICATION ON LT MAIN GEAR, JACKED ACFT AND FOUND GEAR FULLY DOWN AND SECONDARY LOCK NOT FULLY ENGAGED TO MAKE THE GEAR LOCKED SWITCH. REMOVED SE - [SDR CA121130010](https://openairdocs.org/sdr/CA121130010), Nov 27, 2012: CYLINDER HEAD. CRACKED. (CAN) ON INSPECTION OF ENGINE, IT WAS NOTED THAT THE NR 1 CYLINDER ON NR 1 ENGINE WAS CRACKED ON THE UPPER SURFACE BETWEEN THE FIRST 2 COOLING FINS ON THE INTAK - [SDR CA120914011](https://openairdocs.org/sdr/CA120914011), Sep 13, 2012: TORQUE LINK. CRACKED. (CAN) DURING ROUTINE INSPECTION MAINTENANCE FOUND THE LT MLG UPPER TORQUE LINK CRACKED AT THE ATTACH HOLE TO LOWER TORQUE LINK. THIS TORQUE LINK IS AN STC INSTA - [SDR EPUA20120813003](https://openairdocs.org/sdr/EPUA20120813003), Feb 22, 2012: SUPPORT. BROKEN. DURING SCHEDULED ENGINE INSPECTION, THE LT BOTTOM TUBE OF THE TURBOCHARGER SUPPORT WAS FOUND BROKEN NEAR THE WELDED GUSSET. - [SDR JIKA11051001](https://openairdocs.org/sdr/JIKA11051001), Aug 16, 2011: EXHAUST PIPE. DAMAGED. IN CRUISE FLIGHT, RT ENGINE STARTED SPUTTERING BECAUSE THE RT OUTBOARD FUEL TANK WAS GOING EMPTY. THE PILOT SWITCHED BOTH FUEL TANKS TO THE INBOARDS AND AT THAT - [SDR 2009FA0001065](https://openairdocs.org/sdr/2009FA0001065), Nov 23, 2009: SHAFT. SHEARED. ENGINE DRIVEN FUEL PUMP FAILURE. PUMP FAILED WITH 106.7 HRS ON IT. (K) - [SDR CA090409005](https://openairdocs.org/sdr/CA090409005), Apr 7, 2009: OIL FILTER. WARPED. (CAN) AFTER TAKEOFF, CREW NOTICED A PITCH CHANGE FROM RT ENGINE AND OBSERVED RT TACHOMETER INDICATING A DROP IN RPM. ENG CONTROLS WERE ADVANCED AND RPM CAME UP - [SDR F2P2008F00001](https://openairdocs.org/sdr/F2P2008F00001), Sep 24, 2008: HOUSING. CRACKED. RT ENGINE FAILED TO START ON GROUND. FOUND REAR OF STARTER MOTOR HOUSING WITH 2 INCH X 2 INCH HOLE LOCATED AT THE BRUSH HOUSING. (K) - [SDR 2008FA0000531](https://openairdocs.org/sdr/2008FA0000531), Jul 28, 2008: SEAL. LEAKING. FUEL PUMP DRIVE SHAFT SEAL FAILED RESULTING IN LARGE FUEL LEAK AT DRAIN. (K) ## STCs that may be installed (OpenAirDocs) (28) Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc - [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd - [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company - [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc - [STC SE00939WI](https://openairdocs.org/stc/SE00939WI): Installation of B&C Specialty Products Model BC 315-( ) Starter on Lycoming engines. B & C Specialty Products Inc - [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc - [STC SE01436LA](https://openairdocs.org/stc/SE01436LA): Installation of Firewall Forward Technologies LLC modified camshaft. Centri-lube Technologies LLC - [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp - [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc - [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp - [STC SE09445SC](https://openairdocs.org/stc/SE09445SC): Installation of fuel injector nozzles. General Aviation Modifications Inc. Lists LTIO-540 Series - [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists LTIO-540 Series - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists LTIO-540 Series - [STC SE02436AT](https://openairdocs.org/stc/SE02436AT): Installation of 200F series fuel pump assembly. Kelly Aerospace Energy Systems LLC - [STC SE01930NY](https://openairdocs.org/stc/SE01930NY): Installation of Casper Labs 90 degree oil filter housing adapter. Casper Labs Inc - [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc - [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation - [STC SE00890LA](https://openairdocs.org/stc/SE00890LA): Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models. Nickson's Machine Shop Inc. Lists LTIO-540 Series - [STC SE3177NM](https://openairdocs.org/stc/SE3177NM): Installation of Machin, Inc. intercooler & associated systems. American Aviation Inc - [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. Exxon Company USA. Lists LTIO-540 Series - [STC SE7674SW](https://openairdocs.org/stc/SE7674SW): Grind nitrided cylinder barrels plus .010 over size pistons, to .010 and install SL10545P10 SL74241P10 compression rings and SL73857P10 Oil Control rings. Superior Air Parts, Inc - [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists LTIO-540 Series - [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists LTIO-540 Series - [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co. Lists LTIO-540 Series - [STC SE244NE](https://openairdocs.org/stc/SE244NE): Installation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines. Mattituck Airbase, Inc. Lists LTIO-540 Series - [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. Bel-Ray Company, Inc. Lists LTIO-540 Series - [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists LTIO-540 Series - [STC SA01436DE](https://openairdocs.org/stc/SA01436DE) (historical): Installation of Firewall Forward Technologies, LLC modified camshaft. Centri-Lube Technologies LLC ## PMA parts (OpenAirDocs) (over 1,000, first 50) Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first. - [ES66M19385](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186804045820251216184409.0001): Clamp, Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 66M19385 · Nov 10, 2025 - [ES10-400567](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182838314420251216184405.0001): Bearing, Ball. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-400567 · Nov 10, 2025 - [ES10-349249](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172741321620251216184404.0001): Washer, Bowed. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349249 · Nov 10, 2025 - [ES-349310-14](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172213753720251216184353.0001): Magneto Assembly, S-1200 Series, 6 Cyl. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces LW-349310-14, 10-349310-14… · Nov 10, 2025 - [ES10-349247](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155835169920251216184407.0001): Retainer, Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349247 · Nov 10, 2025 - [ES10-78655](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148578074420251216184359.0001): Washer, Flat. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-78655 · Nov 10, 2025 - [ES10-35937-24](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131353354520251216184356.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-35937-24 · Nov 10, 2025 - [ES10-349328](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114147850320251216184403.0001): Flat Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349328 · Nov 10, 2025 - [ES10-349221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111222593020251216184358.0001): Stud, Hex 10-32. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349221 · Nov 10, 2025 - [ES10-349242](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110743662720251216184408.0001): Gear, Spur, 1200 Series, 6-Cyl. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349242 · Nov 10, 2025 - [ES10-349243-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID108636864620251216184402.0001): Cam, 1200. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349243-2 · Nov 10, 2025 - [AB-160844](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100141747720251216184413.0001): Spring & Brush Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-160844 · Nov 10, 2025 - [OC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178549155320250923184433.0001): Oil Cooler Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Sep 12, 2025 - [AE943](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185624017520250908153027.0001): Rotor Shaft. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-228 · Aug 27, 2025 - [AE45BS-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173583138520250908153031.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-1045BS · Aug 27, 2025 - [SL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151538433320250923185921.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025 - [TXPL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146504457020250923185923.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025 - [HSS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104096221220250923185925.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025 - [CFRB9089](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126352418220250312124924.0001): Valve, Poppet Relief. PRECISION AIRMOTIVE LLC · PMA PQ0111NM · Replaces RB9089 · Dec 31, 2024 - [AA48111-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120682187320240813134136.0001): Oil Filter. Aero Accessories LLC · PMA PQ1206CE · Replaces Aero AccessoriesAA48111Champion… · Jul 12, 2024 - [KA16000-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193838121920240919140753.0001): Exhaust Stack Assembly. Aerospace Welding Minneapolis, Inc. · PMA PQ2712CE · Replaces LW-16620 · Jun 20, 2024 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192873678120240701174358.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Jun 20, 2024 - [KA16000-9](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188464280720240919140754.0001): Exhaust Stack Assembly. Aerospace Welding Minneapolis, Inc. · PMA PQ2712CE · Replaces LW-16621 · Jun 20, 2024 - [KA16000-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133825929620240919140753.0001): Exhaust Stack Assembly. Aerospace Welding Minneapolis, Inc. · PMA PQ2712CE · Replaces LW-15849 · Jun 20, 2024 - [KA16000-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105154120420240919140753.0001): Exhaust Stack Assembly. Aerospace Welding Minneapolis, Inc. · PMA PQ2712CE · Replaces LW-15850 · Jun 20, 2024 - [ES3018](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194884707820251216184204.0001): Clamp, Bearing Cap. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3018 · May 20, 2024 - [AM-3021](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194256093820251216184144.0001): Screw Distributor Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3021 · May 20, 2024 - [ES3221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189601053820251216184228.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3221 · May 20, 2024 - [AK-3975](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181109606820251216184201.0001): Coil, Ignition. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3009, M3114, M3525, K3975, K3975 · May 20, 2024 - [ES3179](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180904668720251216184210.0001): Vent Plug, Pressure. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3179 · May 20, 2024 - [AM-3006](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178460806720251216184151.0001): Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3006 · May 20, 2024 - [AM2536](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175576430320251216184152.0001): Woodruff Key. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2536 · May 20, 2024 - [ES3040](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175045989620251216184205.0001): Coil Wedge. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3040 · May 20, 2024 - [AK-3984](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168254730520251216184200.0001): Capacitor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3183, K3984 · May 20, 2024 - [AM-2556](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164604517920251216184155.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2556 · May 20, 2024 - [ES3637K](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163564757720251216184213.0001): Contact Point Secondary. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3637 · May 20, 2024 - [AM-3217](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152412216720251216184157.0001): Wave Spring Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M-3217 · May 20, 2024 - [AM-3485](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151878274520251216184156.0001): Bearing Cap, Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3485 · May 20, 2024 - [AM-3215](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151335825620251216184148.0001): Brush Assy, Distributor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3215 · May 20, 2024 - [ES3823](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146282172620251216184219.0001): Dist. Block & Gear Assy.. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3823 · May 20, 2024 - [ES3307](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146106419020251216184214.0001): Gasket Pressure Kit. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3307 · May 20, 2024 - [ES5618](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143039061220251216184226.0001): Machining, Rotating Magnet. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M5618 · May 20, 2024 - [ES3331](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142668191320251216184207.0001): Oil Seal. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3331 · May 20, 2024 - [ES3828](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141865244620251216184221.0001): Rotor Gear. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces K3828 · May 20, 2024 - [AM-3020](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134367835920251216184146.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3020 · May 20, 2024 - [AM3611](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125128266220251216184158.0001): Cam. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3611, M1522 · May 20, 2024 - [ES3826](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112237278720251216184206.0001): Spacer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3826 · May 20, 2024 - [ES3630](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID108310017320251216184222.0001): Bearing Cap, Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3630, K3630 · May 20, 2024 - [A-13081K](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103306043420251216184147.0001): Contact Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3081 · May 20, 2024 - [ES3019](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100047104220251216184208.0001): Nut. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3019 · May 20, 2024 All of them: https://openairdocs.org/engine/lycoming-ltio-540-j2b/pma.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.