# Continental TSIO-520-AF - Type: Engine model (FAA registry) - Registry code: 17276 - Manufacturer (registry): CONT MOTOR - Model: TSIO-520-AF - Engine type: Reciprocating - Power: 310 hp - Data sheet: [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 4 registered aircraft - Page: https://openairdocs.org/engine/continental-tsio-520-af 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 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 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 2012-03-06](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 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 2009-19-07](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 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 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 93-08-17](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 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 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 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) 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 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) (10) - [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 ## Registered aircraft (4) - [N210WW](https://openairdocs.org/aircraft/N210WW): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1982, S/N P21000808 - [N4680P](https://openairdocs.org/aircraft/N4680P): [Schmidt Aaron B](https://openairdocs.org/faa-owner/SCHMIDT%20AARON%20B), [Auburn, AL](https://openairdocs.org/faa-place/AL/Auburn), built 1983, S/N P21000814 - [N627BT](https://openairdocs.org/aircraft/N627BT): [Aviation Global Inc](https://openairdocs.org/faa-owner/AVIATION%20GLOBAL%20INC), [Saint Augustine, FL](https://openairdocs.org/faa-place/FL/Saint%20Augustine), built 1981, S/N P21000768 - [N67XL](https://openairdocs.org/aircraft/N67XL): [David E Morris Sr Enterprises LLC DBA](https://openairdocs.org/faa-owner/DAVID%20E%20MORRIS%20SR%20ENTERPRISES%20LLC%20DBA), [Mountainburg, AR](https://openairdocs.org/faa-place/AR/Mountainburg), built 1983, S/N P21000815 ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN17WA195](https://openairdocs.org/ntsb/CEN17WA195), May 9, 2017: Cessna P210N (N116DC), San Vicente Tancoayalab, Mexico, destroyed ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20230828016849I](https://openairdocs.org/incident/20230828016849I), Aug 28, 2023: Cessna P210N (N627BT), St Augustine, FL, Minor damage. Pilot failed to extend aircraft landed gear for landing ## Service difficulty reports (4) As reported by operators and repair stations, by the model named in the report. - [SDR CA030409005](https://openairdocs.org/sdr/CA030409005), Jan 31, 2003: CRANKCASE. DAMAGED. (CAN) AT INSPECTION A SMALL AMOUNT OF ALUMINIUM WAS FOUND IN THE OIL FILTER. CYLINDERS WERE REMOVED FROM THE ENGINE TO INVESTIGATE THE SOURCE OF THE FILTER CONT - [SDR 20010419CW011](https://openairdocs.org/sdr/20010419CW011), Jun 27, 2000: HELICOIL. DISLODGED. PILOT REPORTED THAT AN ENGINE FAILURE OCCURRED DURING FLIGHT WITH UNEVENTFUL LANDING. PILOT INFORMED TECHS THT THE TOP SPARK PLUG HAD BECOME REMOVED FROM THE NR - [SDR 99ZZZX29](https://openairdocs.org/sdr/99ZZZX29), Dec 1, 1998: GASKET. MISSING. WHILE TROUBLESHOOTING LOW MANIFOLD PRESSURE, THE GASKET BETWEEN THE TURBOCHARGER TURBINE INLET AND EXHAUST SYSTEM WAS FOUND MISSING CREATING A SERIOUS EXHAUST L - [SDR 98ZZZX2718](https://openairdocs.org/sdr/98ZZZX2718), Jun 23, 1998: LINE. FAILED. DURING TEST FLIGHT AFTER INSTALLING FACTORY REBUILT ENG, FUEL PRESS DROPPED FROM REQUIRED 186 POUNDS PER/HR TO 80 POUNDS PER/HR. A SAFE PRECAUTIONARY LANDING WA ## STCs that may be installed (OpenAirDocs) (40) 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 SE2529NM](https://openairdocs.org/stc/SE2529NM): Installation of an air to air intercooler in the engine induction system downstream of the turbocharger. Western Skyways Aircraft Modifications 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 SE5784NM](https://openairdocs.org/stc/SE5784NM): Replacement of Teledyne Continental original camshaft. 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 SE2393NM](https://openairdocs.org/stc/SE2393NM): Installation of a magneto pressurization kit assembly and associated system for Bendix Models S6RN-1201 and 1205, and SLICK Models 662, 680, 6210 and 6220. Turboplus Aircraft Systems, Inc - [STC SE1186SW](https://openairdocs.org/stc/SE1186SW): Regrooving of pistons P/N 631475 or P/N 632585. 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 SE3631SW-D](https://openairdocs.org/stc/SE3631SW-D): Cylinder modifications. 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 SE4651SW](https://openairdocs.org/stc/SE4651SW): Installation of Slick pressurized magnetos. Also eligible on Teledyne Continental TSIO-520-NB engines modified per STC SE4327SW. RAM Aircraft Limited Partnership - [STC SE1780NM](https://openairdocs.org/stc/SE1780NM): Installation of Precise Flight 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 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 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 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 SE8687SW](https://openairdocs.org/stc/SE8687SW): Regrooving of pistons P/N 631475 or P/N 632585. Capehart Industries, Inc. Lists TSIO-520 Series - [STC SE8594SW](https://openairdocs.org/stc/SE8594SW): Installation of roller rocker arm P/N PE 92I intake and PE92E exhaust. Performance Engineering - [STC SE5205NM](https://openairdocs.org/stc/SE5205NM): Installation of an Oilamatic engine filter screen adapter. Oilamatic Inc - [STC SE7430SW](https://openairdocs.org/stc/SE7430SW): Installation of Performance Engineering roller rocker arms. Performance Engineering - [STC SE941GL](https://openairdocs.org/stc/SE941GL): Installation of oil filler tube extension. Rapco, Inc - [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 - [STC SE244NE](https://openairdocs.org/stc/SE244NE): Installation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines. Mattituck Airbase, Inc. Lists TSIO-520 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 TSIO-520 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 TSIO-520 Series --- 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.