# Continental TSIO-520-P - Type: Engine model (FAA registry) - Registry code: 17268 - Manufacturer (registry): CONT MOTOR - Model: TSIO-520-P - Engine type: Reciprocating - Power: 310 hp - Data sheet: [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 12 registered aircraft - Page: https://openairdocs.org/engine/continental-tsio-520-p 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 80-22-05](https://openairdocs.org/ad/80-22-05): Crankshaft Front Oil Seal · Continental Motors TSIO-520-M, TSIO-520-P and TSIO-520-R. Effective Oct 24, 1980 - [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 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 (12) - [N113TT](https://openairdocs.org/aircraft/N113TT): [Haley John R](https://openairdocs.org/faa-owner/HALEY%20JOHN%20R), [Tomball, TX](https://openairdocs.org/faa-place/TX/Tomball), built 1979, S/N P21000281 - [N210BE](https://openairdocs.org/aircraft/N210BE): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 1978, S/N P210-00088 - [N210VT](https://openairdocs.org/aircraft/N210VT): [Stricker Andreas Daniel](https://openairdocs.org/faa-owner/STRICKER%20ANDREAS%20DANIEL), [Essex Junction, VT](https://openairdocs.org/faa-place/VT/Essex%20Junction), built 1980, S/N P21000522 - [N350GZ](https://openairdocs.org/aircraft/N350GZ): [Valiair Lc Trustee](https://openairdocs.org/faa-owner/VALIAIR%20LC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 1979, S/N P21000382 - [N37MJ](https://openairdocs.org/aircraft/N37MJ): [Lara-Meza Sergio Giovanni](https://openairdocs.org/faa-owner/LARA-MEZA%20SERGIO%20GIOVANNI), [Mcallen, TX](https://openairdocs.org/faa-place/TX/Mcallen), S/N P21000552 - [N474AW](https://openairdocs.org/aircraft/N474AW): [Centurion Aviation LLC](https://openairdocs.org/faa-owner/CENTURION%20AVIATION%20LLC), [Ada, MI](https://openairdocs.org/faa-place/MI/Ada), built 1981, S/N P21000652 - [N4972K](https://openairdocs.org/aircraft/N4972K): [Eastern Stearman Inc Trustee](https://openairdocs.org/faa-owner/EASTERN%20STEARMAN%20INC%20TRUSTEE), [Leesburg, VA](https://openairdocs.org/faa-place/VA/Leesburg), built 1980, S/N P21000388 - [N56BP](https://openairdocs.org/aircraft/N56BP): [Ceballos Oscar Felipe](https://openairdocs.org/faa-owner/CEBALLOS%20OSCAR%20FELIPE), [San Ysidro, CA](https://openairdocs.org/faa-place/CA/San%20Ysidro), built 1978, S/N P21000064 - [N66VS](https://openairdocs.org/aircraft/N66VS): [Eurovation Inc Trustee](https://openairdocs.org/faa-owner/EUROVATION%20INC%20TRUSTEE), Kematen, built 1979, S/N P21000421 - [N6951Y](https://openairdocs.org/aircraft/N6951Y): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 1979, S/N P210-00380 - [N77GS](https://openairdocs.org/aircraft/N77GS): [South Carolina Flyers LLC](https://openairdocs.org/faa-owner/SOUTH%20CAROLINA%20FLYERS%20LLC), [Aiken, SC](https://openairdocs.org/faa-place/SC/Aiken), built 1981, S/N P21000613 - [N966MT](https://openairdocs.org/aircraft/N966MT): [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 1980, S/N P21000584 ## NTSB investigations (3) 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 CEN20WA243](https://openairdocs.org/ntsb/CEN20WA243), Jun 3, 2020: Cessna P210 (N6951Y), Wevelgem, Belgium, incident - [NTSB CEN12WA535](https://openairdocs.org/ntsb/CEN12WA535), Jul 26, 2012: Cessna 210 (N66VS), Antwerpen, Belgium, substantial damage - [NTSB LAX99LA203](https://openairdocs.org/ntsb/LAX99LA203), May 31, 1999: Cessna P210N (N37MJ), Reno, NV, substantial damage. Probable cause: Fuel starvation resulting from the pilot's inattentive monitoring and management of the fuel system. ## FAA accident and incident reports (2) 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 20211027020789I](https://openairdocs.org/incident/20211027020789I), Oct 27, 2021: Cessna P210N (N77GS), Shellman Bluff, GA, Minor damage. On approach, pilot reported error due to slow approach speed. Aircraft landed 75 ft short of runway and flipped over on it's back. - [Accident 19990531005989A](https://openairdocs.org/incident/19990531005989A), May 31, 1999: Cessna P210N (N37MJ), Reno, NV, Substantial damage. Pilot advised tower on final for rwy 16R that he was out of fuel and crashed north of airport. 2 serious. (.4)while on a second practice ILS approach, the… ## Service difficulty reports (33) As reported by operators and repair stations, by the model named in the report. - [SDR 2018FA0000440](https://openairdocs.org/sdr/2018FA0000440), Feb 14, 2018: LIFTER. SPALLED. DAMAGED BEYOND REPAIR. - [SDR 2013FA0000174](https://openairdocs.org/sdr/2013FA0000174), Mar 18, 2013: BARREL. SEPARATED. NR 2 CYLINDER BARREL SEPARATED FROM HEAD DURING FLIGHT. ENGINE STARTED RUNNING ROUGH AND PILOT RETURNED TO THE AIRPORT. - [SDR 2011FA0000323](https://openairdocs.org/sdr/2011FA0000323), Apr 20, 2011: CYLINDER. DELAMINATED. NICKLE PULLED AWAY FROM BARREL OF CYLINDER. - [SDR 2011F00084](https://openairdocs.org/sdr/2011F00084), Apr 20, 2011: CYLINDER. PEELING. THE NICKLE HAS PEELED AWAY FROM THE CYLINDER WALL CREATING A METAL CONTAMINATION OF THE ENGINE. - [SDR 2011FA0000414](https://openairdocs.org/sdr/2011FA0000414), Apr 20, 2011: CYLINDER. PEELING. THE NICKLE HAS PEELED AWAY FROM THE CYLINDER WALL CREATING A METAL CONTAMINATION OF THE ENGINE. - [SDR 2007FA0001045](https://openairdocs.org/sdr/2007FA0001045), Nov 13, 2007: ALTERNATOR. FAILED. DURING NIGHT IMC APPROACH, LOW VOLTAGE LIGHT ILLUMINATED AND BUS VOLTAGE DROPPED BELOW 24 VOLTS. PILOT RECYCLED ALTERNATOR SWITCH BUT WAS UNABLE TO KEEP ALTERNA - [SDR 2007FA0001046](https://openairdocs.org/sdr/2007FA0001046), Nov 10, 2007: ALTERNATOR. FAILED. DURING DAY VMC FLIGHT, LOW VOLTAGE LIGHT ILLUMINATED AND BUS VOLTAGE DROPPED BELOW 24 VOLTS. PILOT MINIMIZED LOADS, DID A MANUAL GEAR EXTENSION, AND LANDED WITH - [SDR 2006FA0000469](https://openairdocs.org/sdr/2006FA0000469), Apr 26, 2006: TURBOCHARGER. LEAKING. OIL LEAKING OUT FROM JOINT IN CENTER OF TURBO. FIRST RUN ON OVERHAULED UNIT JUST INSTALLED ON AIRCRAFT. (K) - [SDR AU510001658](https://openairdocs.org/sdr/AU510001658), Dec 12, 2005: CYLINDER. FAILED. NR 2 CYLINDER HEAD SEPARATED FROM BARREL. FURTHER INVESTIGATION FOUND THAT ALL CYLINDERS (6OFF) SHOULD HAVE BEEN REPLACED IN JULY 2004 IAW ECI SB 04-1. - [SDR 2005FA0001135](https://openairdocs.org/sdr/2005FA0001135), Aug 7, 2005: SWITCH. BROKEN. NO CONFIRMATION OF LANDING GEAR DOWN AND LOCKED. NO GREEN LIGHTS. GEAR APPEARED DOWN VISUALLY. ON INSPECTION ONCE ON THE GROUND IT WAS DOWN AND PROPERLY LOCK. M - [SDR 2005FA0000872](https://openairdocs.org/sdr/2005FA0000872), Jun 7, 2005: VALVE. MISINSTALLED. RECEIVED TURBO CHARGER CHECK VALVE AND INSTALLED IN CORRECT ORIENTATION. RAN ENGINE AND THE TURBO CHARGER CAVITATED DUE TO LOSS OF OIL SUPPLY. FURTHER INVESTIGA - [SDR 2003FA0000981](https://openairdocs.org/sdr/2003FA0000981), Sep 29, 2003: CONNECTING ROD. NICKED. DURING ENGINE INSPECTION FOR DEBRIS IN OIL FILTER FOUND NUMBER 3 CONNECTING ROD CAP TO HAVE DEEP NICK OR GOUGE. - [SDR 2004FA0000231](https://openairdocs.org/sdr/2004FA0000231), Apr 23, 2003: ACTUATOR. CRACKED. LT MLG ACTUATOR CRACKED ALLOWING ALL HYDRAULIC FLUID TO LEAK OB ON RETRACTION AFTER TAKEOFF. COULD NOT EXTEND LANDING GEAR WHICH RESULTED IN A GEAR UP LANDING. - [SDR 2003FA0000373](https://openairdocs.org/sdr/2003FA0000373), Mar 28, 2003: LIFTER. SPALLED. REMOVED NR 2 CYL FOR BLOW BY. PULLED LIFTER ASSEMBLY TO INSPECTION CONDITION FOUND EXHAUST LIFTERBODY SPALLING. DISASSEMBLED ENGINE SENT CAM OUT. CAM WAS ALSO B - [SDR 2003FA0000586](https://openairdocs.org/sdr/2003FA0000586), Mar 26, 2003: DISTRIBUTOR GEAR. DAMAGED. THIS PRESSURIZED MAGNETO WAS REMOVED AND DISASSEMBLED FOR THE 500 HOUR INSPECTION. ALL OF THE INTERNAL HARDWARE WAS FOUND RUSTED. THE DISTRIBUTOR GEAR, DRIVEGEA - [SDR 2003FA0000587](https://openairdocs.org/sdr/2003FA0000587), Mar 26, 2003: DISTRIBUTOR GEAR. FAILED. THIS PRESSURIZED MAGNETO WAS REMOVED AND DISASSEMBLED FOR THE 500 HOUR INSPECTION. ALL THE INTERNAL HARDWARE WAS FOUND RUSTED. THE DISTRIBUTOR GEAR, DRIVE GEAR - [SDR AUS20020547](https://openairdocs.org/sdr/AUS20020547), Mar 5, 2002: CSU. FAULTY. (AUS) PROPELLER GOVERNOR (CSU) FAULTY. SUSPECT CAUSED BY FAULTY SPEEDER SPRING. - [SDR F342002F00000](https://openairdocs.org/sdr/F342002F00000), Jan 2, 2002: DOWNLOCK SWITCH. INOPERATIVE. AIRCRAFT WAS IN THE PROCESS OF LANDING WHEN A PASSENGER NOTICED THE RIGHT GER TRAILING AND NOT IN THE DOWN AND LOCK POSITION. AFTER SEVERAL ATTEMPTS TO PUT GEAR - [SDR CA011219004](https://openairdocs.org/sdr/CA011219004), Dec 5, 2001: TRUNNION. CRACKED. (CAN) NOSE LANDING GEAR LOWER TRUNNION FOUND CRACKED. - [SDR AUS20010778](https://openairdocs.org/sdr/AUS20010778), Jul 23, 2001: CLAMP. BROKEN. (AUS) ENGINE FORWARD LH EXHAUST CLAMP BROKEN. FORWARD AIRFRAMESTRUCTURE, COWL AND NOSE TYRE TORCHED. - [SDR CA001229012](https://openairdocs.org/sdr/CA001229012), Dec 4, 2000: RESERVOIR. CRACKED. (CAN) FOUND FUEL STAINING AROUND THE AFT FUEL INLET ON BOTH FUEL RESERVOIRS (FUEL ODOUR NOTICEABLE). REMOVED TANKS AND INSPECTED, FOUND VERY SMALL HAIRLINE CRAC - [SDR 20000825SH002](https://openairdocs.org/sdr/20000825SH002), Aug 24, 2000: CRANKSHAFT. FAILED. ENGINE FAILED AFTER TAKEOFF RESULTING IN FORCED LANDING. INSPECTION OF ENGINE REVEALED CRANKSHAFT FAILED BETWEEN THE NR 2 AND NR 3 JOURNALS. - [SDR 20000912SH009](https://openairdocs.org/sdr/20000912SH009), Aug 24, 2000: CRANKSHAFT. FAILED. ENGINE FAILED AFTER TAKEOFF RESULTING IN FORCED LANDING. INSPECTION OF ENGINE REVEALED CRANKSHAFT FAILED BETWEEN THE NR 2 AND NR 3 JOURNALS. (X) - [SDR 20000817SH018](https://openairdocs.org/sdr/20000817SH018), Aug 1, 2000: HOUSING. DEFLATED. RELEVANT PT/ET INDICATION ON GOVERNOR BODY. (X) - [SDR 99ZZZX3610](https://openairdocs.org/sdr/99ZZZX3610), Aug 1, 1999: GEAR. FAILED. TT: 1,443.0 HRS AIR FRAME AND ENGINE. ORIGINAL ENGINE FROM THE FACTORY, NEVER REMOVED. GEAR TOOTH FOUND DURING OIL DRAIN CHANGE, MTAL FOUND IN THE OIL FILTER. N - [SDR 98ZZZX4590](https://openairdocs.org/sdr/98ZZZX4590), Oct 20, 1998: LIFTER. CHIPPED. UPON REMOVAL OF CYLINDER NR 1, INSPECTION OF LIFTERS OF CAM LOBES REVEALED CYLINDER LIFTER FACE CHIPPED OUT CAUSING SCRATCHES ON CAMSHAFT LOBE. THIS AIRCRAFT DO - [SDR 98ZZZX1337](https://openairdocs.org/sdr/98ZZZX1337), Mar 25, 1998: SPARK PLUG. DELAMINATED. THE SIDE MOUNTED GROUND ELECTRODE SHOWS SIGNS OF DELAMINATION OR END SPLITS. PREVIOUS MDR SUBMITTED AND WRITTEN IN ALERT 230 SEPT 1997. - [SDR 97ZZZX4330](https://openairdocs.org/sdr/97ZZZX4330), Aug 28, 1997: STUD ASSY. MISTORQUED. LOW OIL PRESSURE; ALL EXTERIOR INSPECTION AND TESTS EXHAUSTED. REMOVED ENGINE AND DIS-ASSEMBLED. FOUND VISUAL SIGNS OF ENGINE MAIN BEARING BORE MISALIGNMENT, I. - [SDR 97ZZZX977](https://openairdocs.org/sdr/97ZZZX977), Feb 20, 1997: CYLINDER. WORN. DURING 100 HOUR INSPECTION, COMPRESSION CHECK REVEALED ALL SIX CYLINDERS LOW AS FOLLOWS: 35/57/50/51/49/51. CUSTOMER REPORTED USING 1 QUART PER HOUR PRIOR TO IN - [SDR 96ZZZX5114](https://openairdocs.org/sdr/96ZZZX5114), Sep 16, 1996: ROCKER. FAILED. WHEN AIRCRAFT WAS FLYING, A LOUD BANG WAS HEARD. MAP WENT FROM 27 INCHES TO 20 INCHES WITH NOTICEABLE LOSS OF POWER AND INCREASED VIBRATION. AIRCRAFT WAS LANDED - [SDR 96ZZZX5341](https://openairdocs.org/sdr/96ZZZX5341), Sep 7, 1996: CYLINDER. HEAD SEPARATED. DURING CRUISE ENGINE BECAME ROUGH RUNNING. EMERGENCY LANDING WAS MADE. INVESTIGATION REVEALED HEAD SEPARATION OF CYLINDER. - [SDR 96ZZZX3563](https://openairdocs.org/sdr/96ZZZX3563), Jun 27, 1996: LEVER ARM. LOOSE. WHILE C/W CESSNA SEB95-15R1, THROTTLE CONTROL LEVER INSPECTION. FOUND LEVER LOOSE AT SHAFT ATTACHMENT; ALSO, FOUND METERING UNIT LEVER LOOSE ON ITS SHAFT. CESSN - [SDR 95ZZZX2675](https://openairdocs.org/sdr/95ZZZX2675), Apr 27, 1995: CYLINDER. SEPARATED. NO LOG BOOKS AVAILABLE AT TIME OF REPORT. NR 5 CYLINDER HEAD COMPLETELY SEPARATED FROM BARREL. SEPARATION OCCURRED IN ALUMINUM HEAD AT EXTREME TOP OF STEEL BARR ## STCs that may be installed (OpenAirDocs) (52, 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 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 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 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 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 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 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 SE5726SW](https://openairdocs.org/stc/SE5726SW): Installation of Floscan -201b or -203b fuel flow transducers. RAM Aircraft Limited Partnership - [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 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 SE2680NM](https://openairdocs.org/stc/SE2680NM): Installation of a wastegate actuator drain line. Machen Inc - [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 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 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 SE3558NM](https://openairdocs.org/stc/SE3558NM): Installation of air to air intercooler in engine induction system. Aircraftsman - [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 All 52: https://openairdocs.org/engine/continental-tsio-520-p/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.