# Lycoming TIO-540-F2BD - Type: Engine model (FAA registry) - Registry code: 41974 - Manufacturer (registry): LYCOMING - Model: TIO-540-F2BD - Engine type: Reciprocating - Power: 325 hp - Data sheet: [TCDS E14EA](https://openairdocs.org/tcds/E14EA) (OpenAirDocs) - Holder: Lycoming Engines - Installed in: 4 registered aircraft - Page: https://openairdocs.org/engine/lycoming-tio-540-f2bd 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 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 2005-12-06](https://openairdocs.org/ad/2005-12-06): Riveted-impulse coupling assemblies and snap-ring coupling assemblies · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 154 more. Effective Jul 19, 2005 - [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 2002-12-07](https://openairdocs.org/ad/2002-12-07): Oil Filter Converter Plate Gasket or the Converter Plate Kit · Lycoming Engines HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 95 more. Effective Jul 3, 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 95-26-02](https://openairdocs.org/ad/95-26-02): Aviation Gasoline · Lycoming Engines IO-320-B1A, IO-320-B1B, IO-320-B1C and 182 more. Effective Jan 24, 1996 - [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 - [AD 83-22-04](https://openairdocs.org/ad/83-22-04): Injector Fuel Diaphragm Stem · Lycoming Engines AEIO-540-L1B5D, IO-540-AA1A5, IO-540-G1B5 and 30 more. Effective Nov 4, 1983 - [AD 79-04-05](https://openairdocs.org/ad/79-04-05): Regulator Diaphragm Stem Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 215 more. Effective Sep 26, 1979 - [AD 79-12-07](https://openairdocs.org/ad/79-12-07): Magnetos · Bendix Magnetos, TIO-540-F2BD, TIO-540-N2BD and 3 more. Effective Jun 19, 1979 - [AD 78-23-10](https://openairdocs.org/ad/78-23-10): Center Body Bellows Seal Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 218 more. Effective Nov 7, 1978 - [AD 75-09-15](https://openairdocs.org/ad/75-09-15): Fuel Starvation To The Engine · Lycoming Engines AIO-320-A1A, AIO-320-A1B, AIO-320-A2A and 130 more. Effective Apr 30, 1975 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 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) (8) - [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-08-26R3](https://openairdocs.org/saib/NE-08-26R3): Magneto/Distributor. Issued Mar 31, 2011 - [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-08-26R1](https://openairdocs.org/saib/NE-08-26R1) (historical): Dual Magnetos. Issued Jul 8, 2008 - [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008 ## Registered aircraft (4) - [N271AS](https://openairdocs.org/aircraft/N271AS): [Skattum LLC](https://openairdocs.org/faa-owner/SKATTUM%20LLC), [Sioux Falls, SD](https://openairdocs.org/faa-place/SD/Sioux%20Falls), built 1976, S/N 31-7612073 - [N27282](https://openairdocs.org/aircraft/N27282): [Sanborn Map Company Inc](https://openairdocs.org/faa-owner/SANBORN%20MAP%20COMPANY%20INC), [Colorado Springs, CO](https://openairdocs.org/faa-place/CO/Colorado%20Springs), built 1977, S/N 31-7712071 - [N325FJ](https://openairdocs.org/aircraft/N325FJ): [Hopkinsville, KY](https://openairdocs.org/faa-place/KY/Hopkinsville), built 1977, S/N 31-7812007, Sale reported - [N74LK](https://openairdocs.org/aircraft/N74LK): [Alexander 3 Aviation LLC](https://openairdocs.org/faa-owner/ALEXANDER%203%20AVIATION%20LLC), [Rincon, GA](https://openairdocs.org/faa-place/GA/Rincon), S/N 31-8012038 ## 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 (38) As reported by operators and repair stations, by the model named in the report. - [SDR 2017FA0000036](https://openairdocs.org/sdr/2017FA0000036), Dec 22, 2016: POINTS. CLOSED. EXPERIENCED ENGINE ROUGHNESS ON LEFT ENGINE, 5-10 MINUTES AFTER DEPARTURE, AT CRUISE ALTITUDE OF APPROXIMATELY 2,500 FEET MSL. ISOLATED THE PROBLEM TO THE RIGHT - [SDR JIKA2016092201](https://openairdocs.org/sdr/JIKA2016092201), Sep 22, 2016: ENGINE. MAKING METAL. THE PILOT REPORTED DURING CLIMBOUT THAT THE LT ENGINE WAS SURGING AND LACKING IN PERFORMANCE. THE LT OIL PRESSURE WAS LOW BUT STILL IN THE GREEN, THE CYLINDER H - [SDR CA090319008](https://openairdocs.org/sdr/CA090319008), Mar 16, 2009: POWERPACK. MISMANUFACTURED. (CAN) THE DEFECT WAS NOTICED WHEN RIGGING WAS BEING CONDUCTED OF THE POWER PAK. THE RIGGING HOLE WAS MISSING IN THE LOWER PART OF THE BODY TO ENSURE NEUTRAL IS - [SDR CA090319010](https://openairdocs.org/sdr/CA090319010), Mar 16, 2009: SCREW. OVERTORQUED. (CAN) DURING A TEST FLIGHT FOR THE POWER PAK CHANGE, IT WAS REPORTED THAT THE LANDING GEAR SELECTOR LEVER WAS VERY WEAK AND SLUGGISH IN RETURNING TO NEUTRAL. TH - [SDR CA090317004](https://openairdocs.org/sdr/CA090317004), Mar 9, 2009: SERVO CONTROL. DAMAGED. (CAN) DURING FLIGHT THE ENGINE SURGED. MIXTURES COULD NOT BE ADJUSTED. FUEL SERVO WAS REPLACED AND NO FURTHER ISSUES WERE NOTED. - [SDR CA070327005](https://openairdocs.org/sdr/CA070327005), Mar 22, 2007: PROXIMITY SWITCH. FAILED. (CAN) MAINTENANCE COULD NOT DUPLICATE FAULT ON GROUND WITH AIRCRAFT ON JACKS. CYCLED GEAR 20 TIMES FAULT FREE. WIRING CHECKED,OK, RIGGING CHECKED OK, HYDRAULIC - [SDR CA080304008](https://openairdocs.org/sdr/CA080304008), Mar 22, 2007: INTAKE VALVE. FAILED. (CAN) WHILE IN CRUISE, THE PILOT HEARD A BANG AND EXPERIENCED A LOSS IN POWER ON THE LT ENGINE. AS THE ENGINE REMAINED RUNNING AND THERE WAS NO IMMEDIATE CONCER - [SDR CA070127002](https://openairdocs.org/sdr/CA070127002), Jan 23, 2007: CONTROL CABLE. FAILED. (CAN) LT PROPELLER CONTROL CABLE FAILURE. THE PILOT NOTED THAT THE LT PROPELLER CONTROL WAS STIFF ON APPROACH. THE LT ENGINE AND PROPELLER CONTROLS WERE INSPECT - [SDR CA061114007](https://openairdocs.org/sdr/CA061114007), Nov 10, 2006: THROTTLE CABLE. FAILED. (CAN) RT ENGINE THROTTLE CABLE FAILURE: DURING A ROUTINE FLIGHT, THE PILOT, ENROUTE , NOTED THAT THE RT ENGINE THROTTLE CONTROL WAS STIFF ON APPROACH. THE AIRCR - [SDR CA060809002](https://openairdocs.org/sdr/CA060809002), May 28, 2006: EXHAUST DUCT. CRACKED. (CAN) EXHAUST TRANSITION BETWEEN TURBO AND EXHAUST STACKS FROM CYLINDERS HAD CRACKED AND STARTED TO BLOW A HOLE BELOW THE EGT PROBE HOLE. THE DEFECT WAS NOTICED - [SDR CA060530003](https://openairdocs.org/sdr/CA060530003), May 20, 2006: O-RING. FAILED. (CAN) O-RING IN HYDRAULIC FILTER BOWL BLEW OUT SIDE BETWEEN THE BOWL SEATS. THERE ARE 2 DIFFERENT TYPES SIZES OF O-RING FOR THIS SET UP AS THERE ARE 2 SLIGHTLY - [SDR 2005F00092](https://openairdocs.org/sdr/2005F00092), Aug 9, 2005: STUD. BROKEN. AFTER DEPARTURE, @ APPROX 500'AGL, ENGINE LOST POWER. THROTTLE REDUCTION TO 31"MP, RAN SMOOTHLY. RETURN FOR LANDING, DISCOVER 7 OF #2 CYLINDER HOLD DOWN STUDS B - [SDR CA050817006](https://openairdocs.org/sdr/CA050817006), Jul 14, 2005: SKIN. DAMAGED. (CAN) WHILE IN CRUISE FLIGHT THE NR 2 COMM ANTENNA DEPARTED THE AIRCRAFT. THE PILOT HEARD THE ANTENNA DEPART AND LANDED AT THE NEAREST AIRPORT. A FERRY PERMIT W - [SDR 2005FA0000767](https://openairdocs.org/sdr/2005FA0000767), May 5, 2005: CAMSHAFT. BROKEN. THE LT ENGINE STOPPED IN CRUISE FLIGHT. AFTER INVESTIGATION IT WAS FOUND THE CAM HAD FAILED JUST FORWARD OF THE NR 5 AND NR 6 CYLINDERS AND CRACKED THE LT CASE - [SDR CA050531002](https://openairdocs.org/sdr/CA050531002), Apr 6, 2005: TURBOCHARGER. LEAKING. (CAN) ENGINE WAS SEEN TO BE SMOKING AT STARTUP AND LOW POWER. AN INSPECTION OF THE TURBO CHARGER REVEALED THAT OIL WAS GETTING BY THE SEALS INTO THE TURBINE SEC - [SDR CA050222009](https://openairdocs.org/sdr/CA050222009), Feb 21, 2005: MAGNETO. FAILED. (CAN) ENGINE WOULD NOT START. THE PROBLEM WAS TRACED TO THE MAG. THIS OVERHAULED MAGNETO HAD BEEN IN SERVICE FOR 34 HRS. - [SDR 2005FA0000310](https://openairdocs.org/sdr/2005FA0000310), Feb 4, 2005: ENGINE. FAILED. THE PILOT ATTEMPTED TO START THE RT ENGINE, WHILE DOING SO, HE HEARD A LOUD BANG THE ENGINE STARTED, AFTERWARDS, SHUTDOWN THE ENGINE AND EXITED THE AIRCRAFT. UP - [SDR CA050124008](https://openairdocs.org/sdr/CA050124008), Jan 18, 2005: HSI. STUCK. (CAN) NR1 HSI NEEDLE STUCK ON NORTHERN HEADING. NR1 ENGINE STARTED TO SURGE. ENGINE DROPPED TO 20 INCHES OF MANIFOLD PRESSURE. AIRCRAFT RETURNED TO BASE SAFELY. - [SDR AUS20040425](https://openairdocs.org/sdr/AUS20040425), May 23, 2004: ROD END. FAILED. (AUS) LT MAIN LANDING GEAR ACTUATOR ROD END FAILED. AIRCRAFT LANDED WITH LT MAIN LANDING GEAR FULLY RETRACTED. - [SDR CA031201005](https://openairdocs.org/sdr/CA031201005), Nov 27, 2003: BEARING. FAILED. (CAN) AFTER TAKEOFF ENGINE MANIFOLD PRESS DROPPED TO 23 INCHES, THE PILOT TURNED AND LANDED BACK AT AIRPORT. MANTENANCE FOUND THE TURBO BEARINGS FAILED. ENGINE - [SDR 2003FA0001112](https://openairdocs.org/sdr/2003FA0001112), Sep 23, 2003: TORQUE TUBE. CORRODED. SB 1105, RUDDER TORQUE TUBE INSPECTION RUST AND CORROSION. - [SDR AUS20030435](https://openairdocs.org/sdr/AUS20030435), Apr 24, 2003: SPAR. CRACKED. (AUS) LT TAILPLANE OUTBOARD SPAR CRACKED AT HINGE POINT. FOUND DURING INSPECTION IAW AD. - [SDR 2003F00101](https://openairdocs.org/sdr/2003F00101), Jan 17, 2003: LINE. LEAKING. DEVELOPED OIL LEAK FROM LT ENGINE DURING RETURN FLIGHT. OIL TEMP WAS HOLDING, BUT OIL PRESSURE HAD STARTED TO DECAY. PILOT SHUT ENGINE DOWN AND FEATHERED AS A P - [SDR CA021219002](https://openairdocs.org/sdr/CA021219002), Dec 18, 2002: UPLOCK HOOK. LACK OF LUBE. (CAN) LT MLG DOWNLOCK INDICATION FAILED TO COME ON AFTER GEAR SELECTION. MLG HANDLE DID NOT NEUTRALIZE AND RED MLG UNSAFE LIGHT WAS ON. AFTER UNEVENTFUL LANDING - [SDR AUS20020909](https://openairdocs.org/sdr/AUS20020909), Aug 7, 2002: DOWNLOCK. SEIZED. (AUS) LH MAIN LANDING GEAR DOWNLOCK PARTIALLY SEIZED PREVENTING POSITIVE LOCKING. - [SDR CA020522000](https://openairdocs.org/sdr/CA020522000), May 17, 2002: PLATE. CRACKED. (CAN) THE BULKHEAD REINFORCEMENT PLATE (KIT P/N 764 028)WAS FOUND CRACKED AT AFT FUSELAGE STA 317.75 WITHIN THE SAME INSPECTION AREA OUTLINED ON PIPER SB 636A. - [SDR CA020611005](https://openairdocs.org/sdr/CA020611005), Apr 25, 2002: CASE. DAMAGED. (CAN) ON ENGINE BUILD-UP TO INSTALL THE PROP DEICE BRUSH BLOCK BRACKET ASSEMBLY. ONE OF THE BOLTS THAT GO THROUGH THE CASE HAD TO BE REMOVED. THE THREADS OF THE - [SDR CA000410010](https://openairdocs.org/sdr/CA000410010), Mar 31, 2000: LINE. BROKEN. (CAN) OIL LINE FAILURE AT FITTING FEEDING TURBOCHARGER SECONDARY DAMAGE TO CONNECTING ROD BEARING CAUSING ROD FAILURE. - [SDR CA990401011](https://openairdocs.org/sdr/CA990401011), Mar 18, 1999: TURBOCHARGER. LEAKING. (CAN) ON LANDING OIL SEAL LEAK FROM TURBOCHARGER IGNITED. WHEN THE ENGINE WAS RETARDED TO IDLE, THERE WAS NO DAMAGE TO THE AIRCRAFT OR ENGINE COMPONENTS. - [SDR CA990330023](https://openairdocs.org/sdr/CA990330023), Mar 10, 1999: ROD. BROKEN. (CAN) DURING FLIGHT, THE NR 1 ENGINE BEGAN TO LOSE POWER. THE AIRCRAFT WAS DIVERTED AND LANDED WITHOUT INCIDENT. POST-FLIGHT INSPECTION FOUND THE NR 6 CYLINDER - [SDR CA981214001](https://openairdocs.org/sdr/CA981214001), Nov 23, 1998: SHAFT. CRACKED. (CAN) THE SHAFT JOINING THE TWO IMPELLERS IN THE TURBOCHARGER WAS FOUND CRACKED. THIS ALLOWED THE EXHAUST SIDE IMPELLER TO SEPARATE FROM THE SHAFT. THE INTAKE I - [SDR CA981109004](https://openairdocs.org/sdr/CA981109004), Oct 29, 1998: CONTROL CABLE. SHEARED. (CAN) DURING PRE-FLIGHT, PILOT NOTED PROP LEVER WAS TOO LOOSE AND THE PROP DID NOT RESPOND. AIRCRAFT SHUT DOWN. INSPECTION FOUND THE PROP CABLE AT THE CONTROL C - [SDR CA980311012](https://openairdocs.org/sdr/CA980311012), Feb 5, 1998: ENGINE. FRICTION. (CAN) UNKNOWN CAUSE OF FRICTION IN THE CRANKCASE. ENGINE SENT FOR INVESTIGATION AND REPAIR. - [SDR AU970581](https://openairdocs.org/sdr/AU970581), May 26, 1997: CAMSHAFT. CRACKED. (AUS) ENGINE CAMSHAFT LOBE CASE HARDENING CRACKED - FOUND DURING MAGNETIC PARTICLE INSPECTION - [SDR 96ZZZX2868](https://openairdocs.org/sdr/96ZZZX2868), May 13, 1996: VALVE SEAT. DISLODGED. ON A SHORT FLIGHT, A ROUGHNESS DEVELOPED IN THE LEFT ENGINE. NO EMERGENCY ACTION WAS REQUIRED. AFTER PERFORMING A COMPRESSION CHECK, FOUND THE EXHAUST VALVE SEA - [SDR AU960492](https://openairdocs.org/sdr/AU960492), Apr 15, 1996: FITTING. LOOSE. (AUS) HORIZONTAL STABILISER WAS REMOVED DUE TO EXCESSIVE MOVEMENT - INVESTIGATION FOUND THAT EACH OF THE TWO FORWARD ATTACHMENT FITTINGS HAD FOUR OF THE FIVE RI - [SDR 95ZZZX5125](https://openairdocs.org/sdr/95ZZZX5125), Jul 5, 1995: COUPLING CLAMP. CRACKED. DURING 100-HOUR INSPECTION, FOUND LEFT ENGINE TURBO EXHAUST COUPLING CLAMP CRACKED IN V-BAND SEGMENT. THIS CLAMP IS THE NEW IMPROVED COUPLING CLAMP. REF PIPER S - [SDR 95ZZZX2952](https://openairdocs.org/sdr/95ZZZX2952), Apr 26, 1995: TURBOCHARGER. LEAKING. SHORTLY AFTER TAKEOFF, RT ENGINE LOST POWER. MAP DROP TO 15 INCHES. AIRCRAFT RETURNED TO FARGO. INSPECTION REVEALED OIL LEAKING FROM INTAKE DRAIN. FOUND OIL SEA ## STCs that may be installed (OpenAirDocs) (30) 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 SE2667CE](https://openairdocs.org/stc/SE2667CE): Installation of B&C Specialty Products lightweight (10.2 pounds) engine starter PN BC315-100-2(12 volt) or PN BC315-100-4 (24 volt). 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 TIO-540 Series - [STC SE7503SW](https://openairdocs.org/stc/SE7503SW): Installation of any or all parts listed on Airmotive Engineering Drawing List No. 852-1, Rev. 1, dated 10/4/88, or later FAA approved revision. Continental Motors, Inc. Lists TIO-540 Series - [STC SE7668SW](https://openairdocs.org/stc/SE7668SW): Installation of parts listed on Drawing List 8810-3, Rev 6. Continental Motors, Inc. Lists TIO-540 Series - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists TIO-540 Series - [STC SE00226NY](https://openairdocs.org/stc/SE00226NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to 24-volt DC source available to the starter. Hartzell Engine Technologies, LLC - [STC SE02436AT](https://openairdocs.org/stc/SE02436AT): Installation of 200F series fuel pump assembly. Kelly Aerospace Energy Systems LLC - [STC SE445GL](https://openairdocs.org/stc/SE445GL): Incorporation of a fuel flow transducer. Shadin Avionics - [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 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 TIO-540 Series - [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation - [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 TIO-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 TIO-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 TIO-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 TIO-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 TIO-540 Series ## 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 - [ES10-349328](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114147850320251216184403.0001): Flat Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349328 · 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 - [AE45BS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187750711420250908153020.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU1045BS · Aug 27, 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 - [AE1003](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179565848920250908153019.0001): Drive End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number A2E1003K · 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 - [AE2241](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127316494620250908153022.0001): Fan Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number 90-2241 · Aug 27, 2025 - [AE1132](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103582853720250908153023.0001): Slip Ring End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Numbers ALK-1132AS… · 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 - [KA16000-17](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157709271920240919140754.0001): Exhaust Stack Assembly. Aerospace Welding Minneapolis, Inc. · PMA PQ2712CE · Replaces LW-16793 · Jun 20, 2024 - [KA16000-13](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156666619220240919140754.0001): Exhaust Stack Assembly. Aerospace Welding Minneapolis, Inc. · PMA PQ2712CE · Replaces LW-16790 · Jun 20, 2024 - [KA16000-15](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143946972520240919140754.0001): Exhaust Stack Assembly. Aerospace Welding Minneapolis, Inc. · PMA PQ2712CE · Replaces LW-16792 · Jun 20, 2024 - [200F-5005](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136991488520240701174359.0001): Fuel Pump. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lear RomecRG9080J8A/MLycoming… · 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 - [200F-5004](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115563363420240701174359.0001): Fuel Pump. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lear RomecRG9080J7A/MLycoming… · Jun 20, 2024 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109491024920240701174358.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · 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 - [AB-382959](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193841471720251216184435.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-382959 · Dec 8, 2023 - [AB-400623](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193069304920251216184444.0001): Ball Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental… · Dec 8, 2023 - [AB-51678](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192819677720251216184507.0001): Oil Deflector. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-51678 · Dec 8, 2023 - [ES10-35936-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191691087420251216184428.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35936-7 · Dec 8, 2023 - [AB-382936](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187213722420251216184508.0001): Lock Nut. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382936 · Dec 8, 2023 - [AB-382568](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175794782920251216184455.0001): Fish Paper. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382568 · Dec 8, 2023 - [AB-382622](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167440259420251216184450.0001): Ignition Contact Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382622 · Dec 8, 2023 - [AB-92815-37](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165115893520251216184504.0001): Retaining Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-92815-37 · Dec 8, 2023 - [AB-349263](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161733554320251216184505.0001): O-Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349263 · Dec 8, 2023 - [AB-382971](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151879023220251216184445.0001): Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-382971 · Dec 8, 2023 - [AB-682016](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151464479720251216184447.0001): Magneto Gear Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-682016 · Dec 8, 2023 - [AB-391213](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146344589820251216184434.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-391213 · Dec 8, 2023 - [AB-382788](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143912317620251216184442.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-382788 · Dec 8, 2023 - [AB-90788-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138975580920251216184500.0001): Woodruff Key. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-90788-5 · Dec 8, 2023 - [AB-163374](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138652177520251216184458.0001): Felt Strip. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-163374 · Dec 8, 2023 - [AB-90751-18](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138224109620251216184503.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-90751-18 · Dec 8, 2023 - [AB-86527](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136544385220251216184459.0001): Lubricant. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-86527 · Dec 8, 2023 - [AB-382789](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131202563120251216184436.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-382789 · Dec 8, 2023 - [AB-50752](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125758886020251216184457.0001): Felt Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-50752 · Dec 8, 2023 - [AB-55501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122580157220251216184441.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-55501 · Dec 8, 2023 - [AB-391309](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120647802220251216184443.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-391309 · Dec 8, 2023 - [AB-92815-62](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118430918720251216184503.0001): Retainer Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-92815-62 · Dec 8, 2023 - [AB-14268](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116974477620251216184440.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-14268 · Dec 8, 2023 - [AB-53397](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113466624320251216184442.0001): Washer, Flat. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-53397 · Dec 8, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189689408720240301172612.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 All of them: https://openairdocs.org/engine/lycoming-tio-540-f2bd/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.