# Continental TSIO-520-WB

- Type: Engine model (FAA registry)
- Registry code: 17273
- Manufacturer (registry): CONT MOTOR
- Model: TSIO-520-WB
- Engine type: Reciprocating
- Power: 325 hp
- Data sheet: [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs)
- Holder: Continental Aerospace Technologies, Inc.
- Installed in: 19 registered aircraft
- Page: https://openairdocs.org/engine/continental-tsio-520-wb

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 2023-09-09](https://openairdocs.org/ad/2023-09-09): Exhaust Turbine System (Recip) · Aerostar PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P) and 292 more. Effective Jul 17, 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 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 88-17-03](https://openairdocs.org/ad/88-17-03): Starter Adapter Shaftgear Assembly · Continental Motors IO-520-BA, IO-520-BB, IO-550-B and 4 more. Effective Aug 10, 1988
- [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 87-14-02](https://openairdocs.org/ad/87-14-02): Starter Adapter Shaftgear · Continental Motors IO-520-BA, IO-520-BB, IO-550-B and 4 more. Effective Oct 5, 1987
- [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 (19)

- [N143DS](https://openairdocs.org/aircraft/N143DS): [Ben-David Meir](https://openairdocs.org/faa-owner/BEN-DAVID%20MEIR), [Woodland Hills, CA](https://openairdocs.org/faa-place/CA/Woodland%20Hills), built 1981, S/N TJ-357
- [N15JA](https://openairdocs.org/aircraft/N15JA): [Adams Harry Jay](https://openairdocs.org/faa-owner/ADAMS%20HARRY%20JAY), [New Waverly, TX](https://openairdocs.org/faa-place/TX/New%20Waverly), built 1979, S/N TK95
- [N250MM](https://openairdocs.org/aircraft/N250MM): [Mone Forwarding Lc](https://openairdocs.org/faa-owner/MONE%20FORWARDING%20LC), [Laredo, TX](https://openairdocs.org/faa-place/TX/Laredo), built 1980, S/N TJ-261
- [N260AR](https://openairdocs.org/aircraft/N260AR): [Deep South Flying Services LLC](https://openairdocs.org/faa-owner/DEEP%20SOUTH%20FLYING%20SERVICES%20LLC), [Albany, GA](https://openairdocs.org/faa-place/GA/Albany), built 1983, S/N TJ436
- [N345CG](https://openairdocs.org/aircraft/N345CG): [Hargis James L](https://openairdocs.org/faa-owner/HARGIS%20JAMES%20L), [Tioga, TX](https://openairdocs.org/faa-place/TX/Tioga), built 1984, S/N TJ-468
- [N4377G](https://openairdocs.org/aircraft/N4377G): [D&P Enterprises Inc](https://openairdocs.org/faa-owner/D%26P%20ENTERPRISES%20INC), [Fresno, CA](https://openairdocs.org/faa-place/CA/Fresno), built 1985, S/N TJ-479
- [N456KW](https://openairdocs.org/aircraft/N456KW): [Qualitair LLC Trustee](https://openairdocs.org/faa-owner/QUALITAIR%20LLC%20TRUSTEE), Michelstadt, built 1982, S/N TJ-427
- [N456WW](https://openairdocs.org/aircraft/N456WW): [Jandal Group Holdings LLC](https://openairdocs.org/faa-owner/JANDAL%20GROUP%20HOLDINGS%20LLC), [Winters, TX](https://openairdocs.org/faa-place/TX/Winters), built 1981, S/N TJ-390
- [N531AB](https://openairdocs.org/aircraft/N531AB): [Missionair Inc](https://openairdocs.org/faa-owner/MISSIONAIR%20INC), [Danbury, CT](https://openairdocs.org/faa-place/CT/Danbury), S/N TJ-454
- [N56HM](https://openairdocs.org/aircraft/N56HM): [Barrett Keith Alan](https://openairdocs.org/faa-owner/BARRETT%20KEITH%20ALAN), [Anniston, AL](https://openairdocs.org/faa-place/AL/Anniston), built 1984, S/N TJ-466
- [N58HE](https://openairdocs.org/aircraft/N58HE): [Soaring Ventures LLC](https://openairdocs.org/faa-owner/SOARING%20VENTURES%20LLC), [La Quinta, CA](https://openairdocs.org/faa-place/CA/La%20Quinta), built 1977, S/N TK-59
- [N58HM](https://openairdocs.org/aircraft/N58HM): [A Great Bonanza LLC](https://openairdocs.org/faa-owner/A%20GREAT%20BONANZA%20LLC), [Manchaca, TX](https://openairdocs.org/faa-place/TX/Manchaca), built 1979, S/N TJ-205
- [N658JS](https://openairdocs.org/aircraft/N658JS): [Two River Airspray LLC](https://openairdocs.org/faa-owner/TWO%20RIVER%20AIRSPRAY%20LLC), [Cavalier, ND](https://openairdocs.org/faa-place/ND/Cavalier), built 1977, S/N TJ100
- [N66WZ](https://openairdocs.org/aircraft/N66WZ): [Bowing Vending Co Inc](https://openairdocs.org/faa-owner/BOWING%20VENDING%20CO%20INC), [Louisville, TN](https://openairdocs.org/faa-place/TN/Louisville), built 1980, S/N TJ-321
- [N744PZ](https://openairdocs.org/aircraft/N744PZ): [Hemmingway Gray Inc](https://openairdocs.org/faa-owner/HEMMINGWAY%20GRAY%20INC), [Los Gatos, CA](https://openairdocs.org/faa-place/CA/Los%20Gatos), built 1981, S/N TJ-382
- [N889TS](https://openairdocs.org/aircraft/N889TS): [Qualitair LLC Trustee](https://openairdocs.org/faa-owner/QUALITAIR%20LLC%20TRUSTEE), Michelstadt, built 1980, S/N TJ281
- [N953DS](https://openairdocs.org/aircraft/N953DS): [Shows Douglas](https://openairdocs.org/faa-owner/SHOWS%20DOUGLAS), [Seabrook, TX](https://openairdocs.org/faa-place/TX/Seabrook), built 1983, S/N TJ-443
- [N963SG](https://openairdocs.org/aircraft/N963SG): [Elephant Shoe Air LLC](https://openairdocs.org/faa-owner/ELEPHANT%20SHOE%20AIR%20LLC), [Vienna, VA](https://openairdocs.org/faa-place/VA/Vienna), built 1984, S/N TJ-452
- [N98BB](https://openairdocs.org/aircraft/N98BB): [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 TJ-193

## 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 CEN19LA049](https://openairdocs.org/ntsb/CEN19LA049), Dec 25, 2018: Beech 58 (N6745V), Sioux Falls, SD, destroyed, 2 fatal. Probable cause: The pilot's failure to maintain adequate airspeed during the instrument approach which led to an aerodynamic stall.

## FAA accident and incident reports (4)

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.

- [Accident 20181225021949A](https://openairdocs.org/incident/20181225021949A), Dec 25, 2018: Beech 58P (N6745V), Sioux Falls, SD, Destroyed, 2 fatal. On December 25, 2018, at approximately 1745, pilot was coming into land on runway 33 at Joe Foss Field in Sioux Falls, SD. The weather was IFR with a ceiling…
- [Incident 20140621011059I](https://openairdocs.org/incident/20140621011059I), Jun 21, 2014: Beech 58P (N10RL), Sanford, FL, Minor damage. On June 21, 2014 at approximately 1009 EDT, a Beechcraft, BE-58-P (N10RL), serial #TJ-340, reported smoke/fire in the cockpit on final to orlando/Sanford…
- [Incident 20091121052119I](https://openairdocs.org/incident/20091121052119I), Nov 21, 2009: Beech 58P (N6745V), Kansas City, MO, No damage. On approach to mci, the pilot requested and received clearance for a landing on rwy 19R due to the proximity to the FBO where he was to park the aircraft. He…
- [Incident 19940311014609I](https://openairdocs.org/incident/19940311014609I), Mar 11, 1994: Beech 58P (N58HM), Ft Worth, TX, Minor damage. Narrative: the aircraft landed after a pleasure flight and taxied to the parking area. Upon shutdown it was noticed that the tip of one blade on left engine…

## Service difficulty reports (27)

As reported by operators and repair stations, by the model named in the report.

- [SDR FAA20140220000089](https://openairdocs.org/sdr/FAA20140220000089), Feb 4, 2014: PUMP. INOPERATIVE. RIGHT INSTRUMENT AIR PUMP FAILED.
- [SDR FAA20140220000090](https://openairdocs.org/sdr/FAA20140220000090), Feb 4, 2014: PUMP. INOPERATIVE. LEFT INSTRUMENT AIR PUMP FAILED.
- [SDR 2014FA0000059](https://openairdocs.org/sdr/2014FA0000059), Jan 15, 2014: PUMP. INOPERATIVE. DURING AN ANNUAL INSPECTION, FOUND LEFT INSTRUMENT AIR PUMP INOPERATIVE. REMOVED PUMP, FOUND DRIVE COUPLING SHEARED. FOUND PUMP VANE DEBRIS IN PRESSURE SIDE AIR
- [SDR 2014FA0000060](https://openairdocs.org/sdr/2014FA0000060), Jan 15, 2014: PUMP. LOW PRESSURE. OWNER REPORTED LT FUEL PRESSURE WAS LOW WHEN OPERATING BOOST PUMP. TESTED FUEL PRESSURE, FOUND PRESSURE LOW. PUMP REMOVED. FUEL SYS COMPONENTS WERE INSPECTED AN
- [SDR 2014FA0000061](https://openairdocs.org/sdr/2014FA0000061), Jan 15, 2014: CYLINDER. LOW PRESSURE. DURING ANNUAL INSPECTION, PERFORMED A DIFFERENTIAL COMPRESSION CHECK. FOUND NR 6 CYLINDER COMPRESSION 32 PSI/80 PSI. COMPRESSION LEAK PAST EXHAUST VALVE. REMOVE
- [SDR 2012FA0000812](https://openairdocs.org/sdr/2012FA0000812), Dec 8, 2012: CYLINDER. CRACKED. DURING ROUTINE MX, FUEL STAINING WAS FOUND ON THE NR 5 CYLINDER HEAD. FURTHER INSPECTION FOUND A SMALL CRACK APPROX .6250". CYLINDER WAS REMOVED AND SENT FOR IN
- [SDR 2012FA0000102](https://openairdocs.org/sdr/2012FA0000102), Feb 9, 2012: CYLINDER. CRACKED. LT ENGINE CYLINDER FOUND TO BE CRACKED AT FUEL INJECTOR NOZZLE HOLE. NEW CYLINDERS WERE INSTALLED AT ENGINE O/H.
- [SDR 2010FA0000207](https://openairdocs.org/sdr/2010FA0000207), Feb 16, 2010: DISTRIBUTOR BLK. LOOSE. CUSTOMER HAD INTERMITTENT ROUGH ENGINE THAT FINALLY HAD FAILED MAGNETO. DISASSEMBLED & FOUND DISTRIBUTOR GEAR AXEL WAS LOOSE IN BLOCK AND TOWER CONTACTS WERE GR
- [SDR HYIA67886](https://openairdocs.org/sdr/HYIA67886), Mar 24, 2009: CIRCUIT BREAKER. INOPERATIVE. PILOT DID NOT HAVE THREE DOWN AND LOCK GREEN LIGHTS. MX INSPECTED AIRCRAFT FOUND BAD C/B AND ONE BAD BULB ON INDICATOR. MX REPLACED C/B AND BULB. PERFORMED REQU
- [SDR 2009FA0000289](https://openairdocs.org/sdr/2009FA0000289), Mar 16, 2009: CYLINDER. CRACKED. FOUND (2) ECI CYLINDERS CRACKED ARE CRACKED BETWEEN THE 17TH AND 18TH FIN AS LOOKING AT CYLINDER INSTALLED FROM THE BARREL TO THE HEAD. IN THE EXHAUST CHAMBER A
- [SDR 2008FA0000261](https://openairdocs.org/sdr/2008FA0000261), Mar 17, 2008: BUSHING. BROKEN. RECEIVED ENGINE IN AFTER 32.2 HOURS SINCE MAJOR OVERHAUL. ENGINE WAS DAMAGED BY COUNTERWEIGHT FAILURE ON CRANKSHAFT. DAMAGED TO THE CRANKCASE, CYLINDERS AND ROD
- [SDR 2005FA0001480](https://openairdocs.org/sdr/2005FA0001480), Oct 18, 2005: CLAMP. LOOSE. IN CRUISE FLIGHT, 2500 RPM, 35 HG, PILOT NOTED L/ENGINE LOST POWER. PILOT FEATHERED PROPELLER AND POWERED ENGINE. MAINT NOTED INTERCOOLER DUCT, PN 102-389003-3 
- [SDR 2003FA0000972](https://openairdocs.org/sdr/2003FA0000972), Aug 22, 2003: CROSSOVER TUBE. CHAFED. DURING A PHASE INSPECTION, THE LEFT CROSSOVER TUBE WAS POUND CHAFED BY THE ENGINE MOUNT TRUSS (PN 102-910026-131). THE CHAFING WAS APPROXIMATELY HALFWAY THROUGH
- [SDR CA030903007](https://openairdocs.org/sdr/CA030903007), Aug 12, 2003: VALVE. LEAKING. (CAN) PN 6524323A1M (FLOW DIVIDED) LEAKING FUEL AFTER ENGINE SHUT DOWN/NEW PART INSTALLED.
- [SDR 2002FA0001348](https://openairdocs.org/sdr/2002FA0001348), Nov 26, 2002: MAGNETO. LACK OF LUBE. ELECTROSYSTEMS DISTRIBUTOR BLOCK FAILED ON TAKEOFF ROLL APPROXIMATELY 10 HOURS AFTER INSTALLATION. IT APPEARS THAT THE OIL LIGHT BEARING THAT THE ROTOR SHAFT RI
- [SDR DP02002F00000](https://openairdocs.org/sdr/DP02002F00000), Sep 4, 2002: CONTROL UNIT. FAILED. NEW ENGINE INSTALLED FROM FACTORY. ENGINE DRIVER PUMP PRESSURES ADJUSTED IAW MFG MM. ENGINE FUEL FLOWS WOULD NOT REACH SPECIFIED VALUE OF 32.4 TO 34.1 GPH. IAW 
- [SDR 2002FA0000456](https://openairdocs.org/sdr/2002FA0000456), Apr 8, 2002: ADAPTER. FAILED. PILOT REPORTED ENGINE WOULD NOT START. FOUND THAT PROP WOULD NOT TURN BACKWARDS. REPLACED STARTER ADAPTER WITH A REBUILT AND OPS CHECKED OK. THIS IS THE SECOND 
- [SDR 20000828SH023](https://openairdocs.org/sdr/20000828SH023), Jul 22, 2000: LINE. MISALIGNED. PILOT WAS UNABLE TO OBTAIN FULL RICH FUEL MIXTURE ON LEFT ENGINE. UPON INSPECTION BY MAINTENANCE, THE MIXTURE CONTROLLER LINKAGE WAS FOUND OBSTRUCTED FROM REACH
- [SDR 20001031SH018](https://openairdocs.org/sdr/20001031SH018), May 19, 2000: INJECTOR. LEAKING. WHILE IN-FLIGHT, A FUEL SMELL ENTERED THE CABIN. FUEL WAS LEAKING AT ALL 6 INJECTORS BETWEEN PIPE THREADS AND CYLINDER. ALL INJECTORS WERE SEALED PER CONTINENTA
- [SDR 97ZZZX3745](https://openairdocs.org/sdr/97ZZZX3745), Jul 31, 1997: SEPARATOR TANK. LEAK. WHILE TROUBLESHOOTING AN OIL LEAK, SUBMITTER FOUND AIR OIL SEPARATOR TANK CRACKED AROUND THE INLET TUBE COMING FROM THE TURBOCHARGER. TWO CRACKS WERE RUNNING PA
- [SDR 97ZZZX3419](https://openairdocs.org/sdr/97ZZZX3419), Jul 21, 1997: VALVE. WRONG PART. DURING AN ANNUAL INSPECTION, FOUND LEAKING EXHAUST VALVES ON NR 2, NR 4, AND NR 6 CYLINDERS, ON LT ENGINE. SINCE TOTAL TIME OF THIS ENGINE WAS ONLY 177.3 HOURS 
- [SDR 97ZZZX785](https://openairdocs.org/sdr/97ZZZX785), Feb 3, 1997: COVER ASSY. LEAK. THE COVER TO OIL PUMP IS SEALED WITH GASKET CEMENT (FORM-A-GASKET PERMATEX) AND A NR 50 SILK THREAD. THE COVER WAS NOT PROPERLY INSTALLED AND TORQUED CAUSING IT
- [SDR 96ZZZX3702](https://openairdocs.org/sdr/96ZZZX3702), Jul 3, 1996: FILTER. DEFECTIVE. OIL FILTER CUT OPEN AT OIL CHANGE. NOTICED INSIDE GASKET WAS CUT AND SLIGHTLY MISALIGNED. CLOSER LOOK REVEALED METAL PORTION WAS CUT APPROXIMATELY ONE INCH AND 
- [SDR 96ZZZX681](https://openairdocs.org/sdr/96ZZZX681), Jan 10, 1996: STARTER ADAPTER. FAILED. LOST OIL PRESSURE ON LT ENGINE DUE TO LOSS OF OIL VIA BROKEN STARTER ADAPTER. AIR CONDITIONER DRIVEN PULLEY AND DRIVE SHAFT HAD BROKEN LOOSE FROM STARTER/ADAPTE
- [SDR 95ZZZX4060](https://openairdocs.org/sdr/95ZZZX4060), Jun 15, 1995: SERVO. DIAPHRAGM TORN. DURING CRUISE, RT MAG INTERMITTENT. AT 14,000 FEET ALTITUDE, FUEL VENTING OUT OF LT ENGINE INBOARD UPPER COWL VENT. FOUND FUEL SERVO DIAPHRAGM TORN ALLOWING FUE
- [SDR 95ZZZX5945](https://openairdocs.org/sdr/95ZZZX5945), May 10, 1995: RINGS. SEIZED. THE OPERATOR REPORTED EXCESSIVE OIL CONSUMPTION. COMPRESSION ON CYLINDERS 2, 4, AND 6 WAS BELOW MINIMUMS WITH BLOWBY BY PISTON RINGS. DISASSEMBLY REVEALED THE R
- [SDR 95ZZZX1878](https://openairdocs.org/sdr/95ZZZX1878), Mar 28, 1995: CRANKCASE. DEFECTIVE. IN COMPLYING WITH SB M92-09 DURING ASSEMBLY USING NEW 12-POINT NUT PN 652541 AND TORQUE OF 790-810 INCHES/POUNDS, ENGINE FAILED TO TURN WHEN FULL TORQUE WAS REA

## STCs that may be installed (OpenAirDocs) (53, 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 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 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 SE09282SC-D](https://openairdocs.org/stc/SE09282SC-D): Modify engine in accordance with RAM Aircraft Corporation Drawing Number 1892. 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 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 SE01628NY](https://openairdocs.org/stc/SE01628NY): Modification of starter adapter by substitution or rework of accessory drive parts. Canadian Aero Manufacturing
- [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 SE5535SW-D](https://openairdocs.org/stc/SE5535SW-D): Slick pressure magneto system. 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
- [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

All 53: https://openairdocs.org/engine/continental-tsio-520-wb/stcs.md

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