# Continental TSIO-520-J - Type: Engine model (FAA registry) - Registry code: 17258 - Manufacturer (registry): CONT MOTOR - Model: TSIO-520-J - Engine type: Reciprocating - Power: 310 hp - Data sheet: [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 1 registered aircraft - Page: https://openairdocs.org/engine/continental-tsio-520-j 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 2023-17-04](https://openairdocs.org/ad/2023-17-04): Reciprocating Engine Oil System · F & M Enterprises' Model C6LC, C6LC-S or C6LC-L oil filter… (Stratus Tool Technologies STC SE09356SC or 2 others). Effective Oct 26, 2023 - [AD 2023-05-16](https://openairdocs.org/ad/2023-05-16): Reciprocating Engine Power Section · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 147 more. Effective Mar 15, 2023 - [AD 2023-02-12](https://openairdocs.org/ad/2023-02-12): Engine Air Intake System · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 127 more. Effective Feb 17, 2023 - [AD 2016-16-12](https://openairdocs.org/ad/2016-16-12): Cylinder assemblies · Continental Motors LTSIO-520-AE, TSIO-520-A, TSIO-520-AE and 89 more. Effective Sep 15, 2016 - [AD 2014-05-29](https://openairdocs.org/ad/2014-05-29): SAP replacement parts manufacturer approval (PMA) investment cast cylinder assemblies · Continental Motors TSIO-520-A, TSIO-520-AE, TSIO-520-AF and 55 more. Effective Apr 25, 2014 - [AD 2012-10-13](https://openairdocs.org/ad/2012-10-13): Starter adapters · Continental Motors IO-550-N, TSIO-520-B, TSIO-520-BB and 14 more. Effective Jun 8, 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 2010-11-04](https://openairdocs.org/ad/2010-11-04): Hydraulic lifters · Continental Motors FSO-470-A, GIO-470-A, GTSIO-520-C and 190 more. Effective Jun 16, 2010 - [AD 2009-19-07](https://openairdocs.org/ad/2009-19-07): EQ3 cylinders · Continental Motors IO-470-C, IO-470-D, IO-470-E and 72 more. Effective Oct 7, 2009 - [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 2004-08-10](https://openairdocs.org/ad/2004-08-10): Serial-numbered (SN) cylinders · Modify Teledyne Continental TSIO-520-NB engine (RAM Aircraft Limited Partnership STC SE09104SC or 4 others). Effective May 5, 2004 - [AD 2000-23-21](https://openairdocs.org/ad/2000-23-21): Crankshaft · Continental Motors IO-360-A, IO-360-AB, IO-360-B and 164 more. Effective Dec 12, 2000 - [AD 99-19-01](https://openairdocs.org/ad/99-19-01): No. 2 and No. 5 Crankshaft Inspections · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 127 more. Effective Sep 30, 1999 - [AD 97-26-17](https://openairdocs.org/ad/97-26-17): Crankshaft · Continental Motors IO-360-A, IO-360-AB, IO-360-B and 90 more. Effective Jan 23, 1998 - [AD 96-12-22](https://openairdocs.org/ad/96-12-22): Full Flow Engine Oil Adapter · Bellanca CH-300 Pacemaker, 120, 140 and 361 more. Effective Jul 31, 1996 - [AD 93-16-15](https://openairdocs.org/ad/93-16-15): Fuel Pump Drive Shaft · Continental Motors IO-520-B, IO-520-BA, IO-520-BB and 27 more. Effective Dec 14, 1993 - [AD 93-08-17](https://openairdocs.org/ad/93-08-17): Oil Pick-Up Tube · Continental Motors IO-470-A, IO-470-C, IO-470-D and 104 more. Effective Aug 23, 1993 - [AD 93-10-02](https://openairdocs.org/ad/93-10-02): Missing Cylinder Valve Retainer Key · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 180 more. Effective Aug 12, 1993 - [AD 91-19-03](https://openairdocs.org/ad/91-19-03): Oil Filter · Continental Motors 6-285-A, 6-285-B, 6-285-BA and 169 more. Effective Sep 29, 1991 - [AD 89-24-01 R1](https://openairdocs.org/ad/89-24-01-R1): Scavenge Oil Pump Gears · Continental Motors TSIO-520-B, TSIO-520-BB, TSIO-520-D and 11 more. Effective Aug 10, 1990 - [AD 88-03-06](https://openairdocs.org/ad/88-03-06): Oil Filter · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 155 more. Effective Apr 15, 1988 - [AD 86-13-04 R3](https://openairdocs.org/ad/86-13-04-R3): Cylinder Assemblies · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 44 more. Effective Feb 24, 1988 - [AD 82-09-01](https://openairdocs.org/ad/82-09-01): Fuel Pressure Regulator Inlet and Outlet · Continental Motors TSIO-520-J, TSIO-520-K, TSIO-520-N and 1 more. Effective Jul 8, 1982 - [AD 81-24-06](https://openairdocs.org/ad/81-24-06): Engine Driven Fuel Pumps · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 51 more. Effective Nov 23, 1981 - [AD 81-16-05](https://openairdocs.org/ad/81-16-05): Magnetos · Lycoming Engines AEIO-320-E1B, AEIO-320-E2B, AEIO-360-B1G6 and 234 more. Effective Aug 6, 1981 - [AD 80-01-04](https://openairdocs.org/ad/80-01-04): Cylinder Holddown Flange Assemblies · Continental Motors IO-520-A, IO-520-B, IO-520-BA and 44 more. Effective Jan 25, 1980 - [AD 79-05-09](https://openairdocs.org/ad/79-05-09): Oil Pump Assembly Or Oil Pressure Relief Valve Screw And/Or Plunger · Teledyne Continental Motors 6-285-CA, GTSIO-520-C, GTSIO-520-D and 60 more. Effective Mar 12, 1979 - [AD 78-06-01](https://openairdocs.org/ad/78-06-01): Cylinder Intake Tube · Continental Motors TSIO-520-J and TSIO-520-N. Effective Jan 24, 1979 - [AD 75-09-13](https://openairdocs.org/ad/75-09-13): Turbocharger Oil Inlet Adapter · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 9 more. Effective Apr 24, 1975 - [AD 72-24-03](https://openairdocs.org/ad/72-24-03): Oil Filter Adapter · Continental Motors IO-360-A, IO-520-B, IO-520-C and 3 more. Effective Nov 15, 1972 - [AD 71-09-03](https://openairdocs.org/ad/71-09-03): Gasket and/or Fuel Leakage · Continental Motors TSIO-360-A, TSIO-520-B, TSIO-520-D and 2 more. Effective Apr 29, 1971 - [AD 98-01-08](https://openairdocs.org/ad/98-01-08): Exhaust Roller Rocker Arm · Roller rocker arm P/N PE 92I intake and PE92E exhaust (Performance Engineering STC SE8594SW) - [AD 77-13-22](https://openairdocs.org/ad/77-13-22): Crankcase Cracks · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 22 more Historical (superseded or no longer in force): - [AD 2023-04-08](https://openairdocs.org/ad/2023-04-08) (historical): Reciprocating Engine Power Section · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 141 more. Effective Feb 23, 2023 - [AD 2011-25-51](https://openairdocs.org/ad/2011-25-51) (historical): Starter Adapter Gear Shaft · Continental Motors IO-550-N, TSIO-520-B, TSIO-520-BB and 14 more. Effective Dec 28, 2011 - [AD 2009-24-52](https://openairdocs.org/ad/2009-24-52) (historical): Hydraulic lifters · Continental Motors FSO-470-A, GIO-470-A, GTSIO-520-C and 192 more - [AD 2009-24-51](https://openairdocs.org/ad/2009-24-51) (historical): Hydraulic lifters · Teledyne Continental Motors FSO-470-A, GIO-470-A, GTSIO-520-C and 156 more - [AD 2009-16-03](https://openairdocs.org/ad/2009-16-03) (historical): Cylinder assemblies · Continental Motors IO-520-A, IO-520-B, IO-520-BA and 55 more. Effective Sep 9, 2009 - [AD 2000-08-51](https://openairdocs.org/ad/2000-08-51) (historical): Crankshaft · Teledyne Continental Motors IO-360-A, IO-360-AB, IO-360-B and 158 more - [AD 99-09-17](https://openairdocs.org/ad/99-09-17) (historical): Crankshaft · Teledyne Continental Motors IO-470-A, IO-470-C, IO-470-D and 114 more ## Information bulletins (advisory) (11) - [SAIB NE-20-05](https://openairdocs.org/saib/NE-20-05): POWERPLANT - Engine Camshaft Gear Tooth Fracture. Issued Apr 6, 2020 - [SAIB NE-18-16](https://openairdocs.org/saib/NE-18-16): POWERPLANT Alternator Drive Coupling. Issued Jun 20, 2018 - [SAIB NE-17-11](https://openairdocs.org/saib/NE-17-11): POWERPLANT Engine damage as a result of kickback. Issued May 10, 2017 - [SAIB NE-16-13](https://openairdocs.org/saib/NE-16-13): Powerplant - Prohibited use of sealant. Issued Mar 8, 2016 - [SAIB NE-13-15](https://openairdocs.org/saib/NE-13-15): Engine Controls: Continental Motors, Inc. (CMI) Throttle and Mixture Control Levers. Issued Feb 8, 2013 - [SAIB NE-13-04](https://openairdocs.org/saib/NE-13-04): Continental Motors, Inc. (CMI) Connecting Rod Piston Pin Bushing Inspection. Issued Oct 31, 2012 - [SAIB NE-10-09](https://openairdocs.org/saib/NE-10-09): Reciprocating Engine Power Section: Hydraulic Valve Lifters. Issued Nov 20, 2009 - [SAIB NE-10-07](https://openairdocs.org/saib/NE-10-07): Reciprocating Engine Cylinder: Identification Information for Superior Air Parts, PMA Cylinder Heads for Teledyne Continental Motors (TCM) IO-520, TSIO-520,and IO-550 Series Engines.. Issued Nov 2, 2009 - [SAIB NE-09-08](https://openairdocs.org/saib/NE-09-08): Reciprocating Engine Cylinder Section. Issued Jan 30, 2009 - [SAIB NE-07-09R1](https://openairdocs.org/saib/NE-07-09R1): Periodic Inspections of ECi Cylinder Assemblies for Cracks in the Aluminum Head. Issued Mar 21, 2007 - [SAIB NE-02-41](https://openairdocs.org/saib/NE-02-41): . Issued Aug 8, 2002 ## Registered aircraft (1) - [N142SD](https://openairdocs.org/aircraft/N142SD): [Sch Aviation Inc Trustee](https://openairdocs.org/faa-owner/SCH%20AVIATION%20INC%20TRUSTEE), Kings Lynn, built 1975, S/N 414-0635 ## 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 (21) As reported by operators and repair stations, by the model named in the report. - [SDR CA101112006](https://openairdocs.org/sdr/CA101112006), Nov 12, 2010: TURBINE. STUCK. (CAN) ON TAKEOFF, THE NR 2 ENGINE WOULD NOT DEVELOP FULL POWER. THE TURBOCHARGER HOT SIDE TURBINE WAS RUBBING ON THE TURBO HOUSING, PREVENTING IT SPINNING. THE - [SDR CA091116007](https://openairdocs.org/sdr/CA091116007), Nov 13, 2009: SKIN. CRACKED. (CAN) DURING AN INSP, THE UPPER WING SKIN WAS FOUND CRACKED. THE CRACK WAS LOCATED AT THE AFT ATTACHMENT POINT OF THE MAIN FUEL TIP TANK. THE CRACK WAS 3/4 OF A - [SDR CA050901004](https://openairdocs.org/sdr/CA050901004), Sep 1, 2005: CONNECTING ROD. BROKEN. (CAN) SUSPECT OIL STARVATION TO NR 3 CONNECTING ROD DUE TO MOVEMENT OF NR 2 INTERMEDIATE MAIN BEARING IN CRANKCASE. ENGINE NOT FULLY DISASSEMBLED AT THIS TIME. - [SDR CA010219019](https://openairdocs.org/sdr/CA010219019), Feb 1, 2001: DIAPHRAGM. CRACKED. (CAN) DURING AN INSPECTION, A FUEL STAIN WAS NOTICED ON AN ADF ANTENNA. IT WAS TRACED TO THE HEATER FUEL PUMP. THE PUMP WAS DISASSEMBLED AND A CRACKED DIAPHRAGM - [SDR 20001017SH041](https://openairdocs.org/sdr/20001017SH041), Sep 25, 2000: CYLINDER HEAD. DESTROYED. OFP - AFTER TAKEOFF IN VFR CONDITIONS, PILOT REPORTED ENGINE FIRE ON RIGHT ENGINE. AFTER SAFE LANDING, AND INSPECTION OF THE ENGINE REVEALED A 1.75 INCH HOLE IN - [SDR 99ZZZX940](https://openairdocs.org/sdr/99ZZZX940), Jan 28, 1999: CYLINDER. DAMAGED. HEAD SEPARATION AT BARREL THREADS. CRACK PRODUCED STARTING AT HEAD AND BARREL ATTACHING THREADS DUE TO AGING CYLINDER. - [SDR CA990129017](https://openairdocs.org/sdr/CA990129017), Jan 18, 1999: CRANKCASE. CRACKED. (CAN) DURING CRUISE ,THE PILOT NOTICED FLUCTUATING MANIFOLD PRESSURE ON NR 1 ENGINE. THE ENGINE THEN LOST POWER AND BEGAN TO LOSE OIL PRESSURE. THE ENGINE WAS S - [SDR CA981109025](https://openairdocs.org/sdr/CA981109025), Oct 19, 1998: MOUNT. CORRODED. (CAN) AFTER ENGINE REMOVAL FROM RIGHT HAND POSITION, AN AREA ON OUTBOARD ENGINE RT BEAM HAD A SLIGHT BUMP. FURTHER EXAMINATION REVEALED A PORTION OF THE Z-SECTI - [SDR CA981109023](https://openairdocs.org/sdr/CA981109023), Oct 15, 1998: ALTERNATOR. CRACKED. (CAN) ALTERNATOR REMOVED AT SAME TIME AS ENGINE REMOVAL. ONE ATTACHING EAR WAS FOUND CRACKED, TO THE POINT THAT THE ONLY THING HOLDING IT WAS THE MOUNTING FLANG - [SDR CA981109022](https://openairdocs.org/sdr/CA981109022), Oct 2, 1998: CRANKCASE. CRACKED. (CAN) PILOT REPORTED OIL LEAK ON NR 2 ENGINE. ENGINE WAS WASHED DOWN AND RUN-UP. INSPECTION FOUND A 1.5 INCH CRACK JUST BELOW THE FORWARD TOP THROUGH-BOLT AREA, - [SDR CA980325025](https://openairdocs.org/sdr/CA980325025), Mar 6, 1998: EXHAUST VALVE. WORN. (CAN) ENGINE RECEIVED FOR CRANKCASE REPAIR. ON DISASSEMBLY THE TIP OF THE EXHAUST VALVE STEMS, ON 2 CYLINDERS, WERE FOUND TO BELOW THE VALVE KEEPERS. THE VALVE - [SDR 97ZZZM257](https://openairdocs.org/sdr/97ZZZM257), Jan 17, 1997: CONNECTING ROD. FAILED. FLT 131 - EN ROUTE PQI-PWM - FLIGHT CREW LOST RIGHT ENGINE IN FLIGHT. AIRCRAFT LANDED AT BGR WITHOUT INCIDENT. PRE-INSPECTION NOTED OIL PRESENT, DAMAGE TO UPPER - [SDR 96ZZZX3444](https://openairdocs.org/sdr/96ZZZX3444), May 30, 1996: CRANKCASE. CRACKED. ENGINE CRANKCASE WAS FOUND CRACKED FROM THE CRANKCASE THROUGH-BOLT AT CYLINDER NR 2. THE CASE WAS REPLACED 4-9-95. THE ENGINE CURRENTLY HAS 1,257 HOURS TSO. - [SDR 96ZZZX2066](https://openairdocs.org/sdr/96ZZZX2066), Mar 8, 1996: CRANKSHAFT. FAILED. AFTER TAKEOFF WHILE IN LEVEL FLIGHT, THE PILOT EXPERIENCED A SUDDEN ENGINE SEIZURE ON THE RT ENGINE. AN UNEVENTFUL LANDING WAS MADE. THE CRANK WAS FOUND BROKEN - [SDR AU960329](https://openairdocs.org/sdr/AU960329), Feb 27, 1996: STUD. SEPARATED. (AUS) LH ENGINE DRIVEN OIL PUMP HOUSING STUD SEPARATED CAUSING OIL LEAK- STUD IS NOT USED ON THIS INSTALLATION - [SDR CA960304011](https://openairdocs.org/sdr/CA960304011), Feb 13, 1996: DEICE TANK. CRACKED. (CAN) 1 INCH CRACK AT WELDMENT OF VENT LINE AND LOWER SECTION TANK SKIN. AREA APPEARS CORRODED AND VENT LINE SECTION BELOW TANK APPEARS TO HAVE HAD AN IMPACT. - [SDR 95ZZZX6742](https://openairdocs.org/sdr/95ZZZX6742), Nov 21, 1995: SUPPORT. CRACKED. AFT END OF BRACKET CRACKED 1.5 INCHES OF THE 1.75 INCH WIDTH. AFT END OF BRACKET IS SLOTTED, MAY HAVE BEEN INSTALLED WITH A PRELOAD. SUBMITTER STATED TO TIGHTEN - [SDR 95ZZZX3269](https://openairdocs.org/sdr/95ZZZX3269), Jun 19, 1995: ROCKER ARM PIN. WORN. ROCKER ARM PINS WERE WORN ON ONE SIDE BEYOND LIMITS. SUSPECT WEAR WAS DUE TO AGE OF PARTS AND POSSIBLE OIL STARVATION. - [SDR 95ZZZX3282](https://openairdocs.org/sdr/95ZZZX3282), Jun 19, 1995: ROCKER ARM. BEARING WORN. ROCKER ARM BEARING WORN BEYOND LIMITS. SUSPECT DUE TO AGE AND OIL STARVATION TO THIS PART. - [SDR 95ZZZX3283](https://openairdocs.org/sdr/95ZZZX3283), Jun 19, 1995: ROCKER ARM. WORN. ROCKER ARM BEARING WORN BEYOND LIMITS. SUSPECT DUE TO AGE AND OIL STARVATION TO THIS PART. - [SDR 95ZZZX2892](https://openairdocs.org/sdr/95ZZZX2892), May 30, 1995: CRANKSHAFT. BROKE. ENGINE FAILURE - LEVEL AT 12,000 FEET MSL CRUISE POWER. RAPID REDUCTION IN RPM, M.A.P., AND O.P., THEN PUT IN FEATHER. UPON LANDING, MECHANIC DETERMINED THAT NR ## STCs that may be installed (OpenAirDocs) (58, first 50) 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 SE5583SW](https://openairdocs.org/stc/SE5583SW): Installation of fuel flow transducers (true-flow totalizer). Alcor LLC. Lists TSIO-520 Series - [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd - [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation 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 SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp - [STC SE09356SC](https://openairdocs.org/stc/SE09356SC): Install F & M Enterprises' Model C6LC, C6LC-S or C6LC-L oil filter adapter for a spin-on oil filter. Stratus Tool Technologies LLC - [STC SE96WE](https://openairdocs.org/stc/SE96WE): Installation of oil fitting(AN-823-5D) in rocker box cover. Airwolf Filter Corporation - [STC SE00113SE](https://openairdocs.org/stc/SE00113SE): Replaces Teledyne-Continental Part Number 646277 lifter bodies. B & B Aviation LLC - [STC SE5785NM](https://openairdocs.org/stc/SE5785NM): Replacement of Teledyne Continental original camshaft with P/N 32122-2. B & B Aviation LLC - [STC SE70RM](https://openairdocs.org/stc/SE70RM): Installation of compressor bracket. Air Comm Corporation - [STC SE09637SC](https://openairdocs.org/stc/SE09637SC): Remove existing rocker arm assemblies and install modify rocker arm assemblies. General Aviation Modifications Inc - [STC SE1186SW](https://openairdocs.org/stc/SE1186SW): Regrooving of pistons P/N 631475 or P/N 632585. Continental Motors, Inc - [STC SE2340SW](https://openairdocs.org/stc/SE2340SW): Installation of modified cylinder assemblies, barrels, piston, and repaired crankcases. Continental Motors, Inc - [STC SE5820SW](https://openairdocs.org/stc/SE5820SW): Installation of Airmotive exhaust valve, P/N AEC-637781. Continental Motors, Inc. Lists TSIO-520 Series - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists TSIO-520 Series - [STC SE3330NM](https://openairdocs.org/stc/SE3330NM): Continental valve cover gasket. Real Gaskets Tennessee - [STC SE09280SC-D](https://openairdocs.org/stc/SE09280SC-D): Modify engine in accordance with RAM Aircraft Corporation Drawing No. 1888. RAM Aircraft Limited Partnership - [STC SE09281SC-D](https://openairdocs.org/stc/SE09281SC-D): Modify engine in accordance with RAM Aircraft Corporation Drawing Number 1891. RAM Aircraft Limited Partnership - [STC SE3632SW-D](https://openairdocs.org/stc/SE3632SW-D): Installation of induction hose clamps. RAM Aircraft Limited Partnership - [STC SE09653SC-D](https://openairdocs.org/stc/SE09653SC-D): Installation of RAM Induction Equalized Fuel Nozzle Set. RAM Aircraft Limited Partnership - [STC SE3631SW-D](https://openairdocs.org/stc/SE3631SW-D): Cylinder modifications. RAM Aircraft Limited Partnership - [STC SE5726SW-D](https://openairdocs.org/stc/SE5726SW-D): Installation of Floscan - 20lb or - 203b fuel flow transducers. RAM Aircraft Limited Partnership - [STC SE09846SC](https://openairdocs.org/stc/SE09846SC): Installation of S539800M30 starter adapter springs. Aircraft Specialties Services Inc - [STC SE444GL](https://openairdocs.org/stc/SE444GL): Incorporation of a fuel flow transducer. Shadin Avionics - [STC SE630SW](https://openairdocs.org/stc/SE630SW): Engine modifications. RAM Aircraft Limited Partnership - [STC SE1780NM](https://openairdocs.org/stc/SE1780NM): Installation of Precise Flight standby vacuum system (SVS III). Precise Flight Inc - [STC SE5726SW](https://openairdocs.org/stc/SE5726SW): Installation of Floscan -201b or -203b fuel flow transducers. RAM Aircraft Limited Partnership - [STC SE4159NM](https://openairdocs.org/stc/SE4159NM): Installation of American Aviation Inc., intercooler and associated systems. American Aviation Inc - [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation - [STC SE09261SC](https://openairdocs.org/stc/SE09261SC): Modify engine to increase power output rating from 310 hp to 335 hp, install Garrett/AlliedSignal TA-81 turbocharger, RAM intercooler, RAM economy camshaft, RAM oil pump pickup tube, RAM forged pistons with gapless rings, and 0.02 inch undersized crankshaft. RAM Aircraft Limited Partnership. Lists TSIO-520 Series - [STC SE3631SW](https://openairdocs.org/stc/SE3631SW): Cylinder modification. RAM Aircraft Limited Partnership. Lists TSIO-520 Series - [STC SE3632SW](https://openairdocs.org/stc/SE3632SW): Installation of induction hose clamps. RAM Aircraft Limited Partnership - [STC SE3683SW](https://openairdocs.org/stc/SE3683SW): Installation of alternator clutch hub Teledyne part no. 640934 with Teledyne part no. 642056 alternator. This mod has been found to be compatible with STC SE4327SW and SE3714SW. RAM Aircraft Limited Partnership - [STC SE5455SW](https://openairdocs.org/stc/SE5455SW): Unpressurized Slick 6220 magnetos. RAM Aircraft Limited Partnership - [STC SE09513SC](https://openairdocs.org/stc/SE09513SC): Installation and usage of Exxon 20W50 Multigrade aircraft engine oil conforming to Exxon Oil Formulation WS-3013. Exxon Company USA. Lists TSIO-520 Series - [STC SE09559SC](https://openairdocs.org/stc/SE09559SC): Installation of US Airparts roller rocker arm assemblies P/N US92E exhaust and US92I intake. US Airparts, Inc - [STC SE55WE](https://openairdocs.org/stc/SE55WE): Modification of fuel injection manifold valve P/N 626547 to the P/N 631427 or P/N 636326 configuration. AAR Aircraft Services Inc. d/b/a AAR Aircraft Services-Oklahoma. Lists TSIO-520 Series - [STC SE09289SC](https://openairdocs.org/stc/SE09289SC): Installation of modified fuel injector nozzles. General Aviation Modifications, Inc. Lists TSIO-520 Series - [STC SE00577NY](https://openairdocs.org/stc/SE00577NY): Installation of Canadian Aero Mfg. (C.A.M.) Oil Coolers. Canadian Aero Manufacturing - [STC SE09319SC](https://openairdocs.org/stc/SE09319SC): Modify oil pan adding a new oil sump drain. Texas Skyways Inc. Lists TSIO-520 Series - [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation - [STC SE00427NY](https://openairdocs.org/stc/SE00427NY): Installation, operation and inspection of CAM oil coolers. Canadian Aero Manufacturing - [STC SE00144SE](https://openairdocs.org/stc/SE00144SE): Replaces the following Teledyne-Continental part numbers: 641682 (Rocker Arm, Exhaust), 539742 (Rocker Arm, Intake), 539740 (Rocker Arm, Shaft) and 538304 (Pushrod Assembly). Dakota Aircraft Parts Inc - [STC SE8687SW](https://openairdocs.org/stc/SE8687SW): Regrooving of pistons P/N 631475 or P/N 632585. Capehart Industries, Inc. Lists TSIO-520 Series - [STC SE00005DE](https://openairdocs.org/stc/SE00005DE): Installation of engine oil filter adapter compatable with SA4094NM Oilamatic, Inc. engine preoiling system. Oilamatic Inc - [STC SE8594SW](https://openairdocs.org/stc/SE8594SW): Installation of roller rocker arm P/N PE 92I intake and PE92E exhaust. Performance Engineering - [STC SE7430SW](https://openairdocs.org/stc/SE7430SW): Installation of Performance Engineering roller rocker arms. Performance Engineering - [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists TSIO-520 Series - [STC SE3630SW](https://openairdocs.org/stc/SE3630SW): Crankcase modifications. RAM Aircraft Limited Partnership - [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 TSIO-520 Series All 58: https://openairdocs.org/engine/continental-tsio-520-j/stcs.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.