# Lycoming O-540-J2D5D - Type: Engine model (FAA registry) - Registry code: 42363 - Manufacturer (registry): LYCOMING - Model: O-540-J2D5D - Engine type: Reciprocating - Power: 235 hp - Data sheet: [TCDS E-295](https://openairdocs.org/tcds/E-295) (OpenAirDocs) - Holder: Lycoming Engines - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/lycoming-o-540-j2d5d 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 2026-17-10](https://openairdocs.org/ad/2026-17-10): Reciprocating Engine Cylinder Section · Lycoming Engines O-235, O-235-A, O-235-AP and 159 more. Effective Sep 14, 2026 - [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 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 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012 - [AD 2009-26-12](https://openairdocs.org/ad/2009-26-12): Cylinder assemblies · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 264 more. Effective Feb 4, 2010 - [AD 2007-04-19 R1](https://openairdocs.org/ad/2007-04-19-R1): SAP cylinder assemblies · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 314 more. Effective May 7, 2007 - [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006 - [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 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 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 87-10-06 R1](https://openairdocs.org/ad/87-10-06-R1): Rocker Arm Assembly · Lycoming Engines IO-360-B4, IVO-360-A1A, O-340-A1A and 243 more. Effective Sep 1, 1989 - [AD 89-04-02](https://openairdocs.org/ad/89-04-02): Carburetors · Continental Motors O-470-11, O-470-11-CI, O-470-11B and 175 more. Effective Mar 8, 1989 - [AD 75-08-09](https://openairdocs.org/ad/75-08-09): Oil Pump Drive Shaft · Lycoming Engines AEIO-360-A1B, AEIO-360-A1B6, AEIO-360-A1C and 365 more. Effective Aug 18, 1977 - [AD 69-24-03](https://openairdocs.org/ad/69-24-03): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 321 more. Effective Nov 29, 1969 - [AD 63-22-03](https://openairdocs.org/ad/63-22-03): Carburetors · Continental Motors GO-300-A, GO-300-B, GO-300-C and 143 more. Effective Dec 2, 1963 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 2008-19-05](https://openairdocs.org/ad/2008-19-05) (historical): Parallel Valve'' reciprocating engines · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 262 more. Effective Oct 20, 2008 - [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 2000-18-53](https://openairdocs.org/ad/2000-18-53) (historical): Oil Filter Converter Plate Gaskets · Textron Lycoming, AVCO AEIO-540, IO-360-A1B6D, IO-360-A1D6D and 73 more ## 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-13-06](https://openairdocs.org/saib/NE-13-06): Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320, 360, and 540 Series Engines. Issued Nov 21, 2012 - [SAIB NE-08-26R3](https://openairdocs.org/saib/NE-08-26R3): Magneto/Distributor. Issued Mar 31, 2011 - [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 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. ## STCs that may be installed (OpenAirDocs) (37) 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 SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC - [STC SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc - [STC SE2932SW](https://openairdocs.org/stc/SE2932SW): Install carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive. Alcor LLC. Lists O-540 Series - [STC SE208SO](https://openairdocs.org/stc/SE208SO): Installation of ice indicator in the carburetor. LegacySTC.com. Lists O-540 Series - [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 SE2388CE](https://openairdocs.org/stc/SE2388CE): Installation of B&C Speciality Products lightweight (10.2) pounds) engine starter, part number BC-315-100-1 (12 volts) or part number BC-315-100-3 (24 volts). B & C Specialty Products Inc. Lists O-540 Series - [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 SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists O-540 Series - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists O-540 Series - [STC SE00218NY](https://openairdocs.org/stc/SE00218NY): Replacement of Lycoming starter with SKY-TEC 12 volt starter installed. Hartzell Engine Technologies, LLC. Lists O-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 SE00357NY](https://openairdocs.org/stc/SE00357NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter installed. Hartzell Engine Technologies, LLC. Lists O-540 Series - [STC SE2901NM](https://openairdocs.org/stc/SE2901NM): Lycoming valve cover gasket. Real Gaskets Tennessee - [STC SE00768CH](https://openairdocs.org/stc/SE00768CH): Replace Slick 6000, 6100, 6200 and 6300 series magnetos and TCM/Bendix S6-20, S6-200 and S6-1200 series magnetos with the Champion Limited Authority Spark Advance Regulator (LASARTM) ignition system. Champion Aerospace LLC. Lists O-540 Series - [STC SE7734SW](https://openairdocs.org/stc/SE7734SW): Modification of engine for operation with ethanol fuel. Shauck Dr Maxwell E Jr - [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 O-540 Series - [STC SE1-201](https://openairdocs.org/stc/SE1-201): Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D)). MidContinent Instru Co Inc. Lists O-540 Series - [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 O-540 Series - [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists O-540 Series - [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists O-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 O-540 Series - [STC SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines. Perrigo & Steele Aircraft Engr Company. Lists O-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 O-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 O-540 Series - [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists O-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 O-540 Series - [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines. Kling Oil Company. Lists O-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. - [72-231114-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157761992320260722204351.0001): TAG-Engine. Swift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 17, 2026 - [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 - [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 - [AE15BA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167463833220250908153021.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALV-1015 · Aug 27, 2025 - [AE944](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157009852420250908153027.0001): Rotor Shaft. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALE-273 · Aug 27, 2025 - [AE45BS-E](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143460060920250908153031.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALE-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 - [AE2259](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112306055120250908153022.0001): Fan Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number 90-2259 · 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 - [AA48111-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120682187320240813134136.0001): Oil Filter. Aero Accessories LLC · PMA PQ1206CE · Replaces Aero AccessoriesAA48111Champion… · Jul 12, 2024 - [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 - [ES6350](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124306822420240301172630.0001): Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 6350 · Dec 1, 2023 - [TA2927-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196557185220231109131559.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [TA2927-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168120339420231109131600.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [RG-72812](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197301571120240531133024.0001): Gasket. Real Gasket TN · PMA PQ1666CE · Replaces 06B21326LW-1330672812 · Aug 29, 2023 - [ES-4019LS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185701279720220916174121.0001): Alternator Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lycoming 32C21420 · Aug 3, 2022 - [PM2403](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197160420320220916164414.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 122-24HT,122-HT/ec,122-24LS,122-24PM,12… · May 16, 2022 - [ERZ‐8012](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185883705920220916164346.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Kelly… · May 16, 2022 - [ERB‐8012](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181134014020220916164342.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Kelly Aerospace MHB-4015, MMU-4001… · May 16, 2022 - [PM1203](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180763837820220916164409.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 122-l2HT,122-12LS,122-t2PM,122-NL,31A22… · May 16, 2022 - [PM1201](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178083546420220916164407.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 149-12HT149-12LS,149-12PM,149-NL,31A221… · May 16, 2022 - [MHB-4018](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156326444820220916164354.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lycoming LW-15577 · May 16, 2022 - [MHB-4016](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154657633320220916164352.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lycoming LW-15572 · May 16, 2022 - [PM2401](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152894865720220916164412.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 149-24HT,149-24HT/ec,149-24L5,149-24PM… · May 16, 2022 - [ERB‐8011](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131425514420220916164339.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Kelly Aerospace MHB-4001, MHB-4002… · May 16, 2022 - [MZ‐4222](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114823705220220916164402.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lycoming LW-15571 · May 16, 2022 - [ALY-4520](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID450561012220220308141059.0001): Alternator Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Electrosystems 40183 · Feb 25, 2022 - [ALX-4521](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID449972818202203081410530.0001): Alternator Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Electrosystems 40164 · Feb 25, 2022 - [ALT-4521](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID410980653202203081410460.0001): Alternator Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Electrosystems 40165 · Feb 25, 2022 - [ES6350](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID732969295520210713131230.0001): Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 6350 · May 24, 2021 - [SL-STD-160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID889354517620210823174227.0001): Gasket. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-160 · May 10, 2021 - [SL-STD-1065 P002](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID740516129120210823172410.0001): Dowel, Stepped. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1065-P02 · May 10, 2021 - [SL-STD-1045](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID666831168520210823174225.0001): Gasket. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1045 · May 10, 2021 - [SL-STD-1821](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID502815267620210823174229.0001): Hose. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1821 · May 10, 2021 - [SL-STD-111](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID246865756120210823174133.0001): Gasket. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-111 · May 10, 2021 - [SL-STD-1410](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID956383456620210823173811.0001): Nut. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1410 · May 5, 2021 - [SL-STD-1204](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID727910962021082317381001.0001): Bolt. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1204 · May 5, 2021 - [SL-STD-1925](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID623876214320210823173811.0001): Screw. Superior Air Parts Inc · PMA PQ0060SW · Replaces STD-1925 · May 5, 2021 - [SL75089A P010](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID976640141120210804170400.0001): Piston. Superior Air Parts Inc · PMA PQ0060SW · Replaces 75089 P10 · Mar 8, 2021 - [SL31CD-17 P003](https://drs.faa.gov/browse/excelExternalWindow/F659E4EB8DB01695862585FB0034F5D9.0001): Stud, 5/16 IN DIA, Coarse Thread. Superior Air Parts Inc · PMA PQ0060SW · Replaces 31CD-17-P03 · Oct 6, 2020 - [SL31CD-16 P012](https://drs.faa.gov/browse/excelExternalWindow/F266CA7E477307DC862585FB0034F5A4.0001): Stud, 5/16 IN DIA, Coarse Thread. Superior Air Parts Inc · PMA PQ0060SW · Replaces 31CD-16-P12 · Oct 6, 2020 - [SL31CD-13 P012](https://drs.faa.gov/browse/excelExternalWindow/E656978A9DBFB875862585FB0034F397.0001): Stud, 5/16 IN DIA, Coarse Thread. Superior Air Parts Inc · PMA PQ0060SW · Replaces 31CD-13-P12 · Oct 6, 2020 - [SL31CD-8 P003](https://drs.faa.gov/browse/excelExternalWindow/CAF2AF0E913FE9BD862585FB0034EF24.0001): Stud, 5/16 IN DIA, Coarse Thread. Superior Air Parts Inc · PMA PQ0060SW · Replaces 31CD-8-P03 · Oct 6, 2020 - [SL31CD-12 P007](https://drs.faa.gov/browse/excelExternalWindow/C54ACF40782DEBC8862585FB0034F27F.0001): Stud, 5/16 IN DIA, Coarse Thread. Superior Air Parts Inc · PMA PQ0060SW · Replaces 31CD-12-P07 · Oct 6, 2020 All of them: https://openairdocs.org/engine/lycoming-o-540-j2d5d/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.