# Continental TSIO-520-E

- Type: Engine model (FAA registry)
- Registry code: 17255
- Manufacturer (registry): CONT MOTOR
- Model: TSIO-520-E
- Engine type: Reciprocating
- Power: 300 hp
- Data sheet: [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs)
- Holder: Continental Aerospace Technologies, Inc.
- Installed in: 6 registered aircraft
- Page: https://openairdocs.org/engine/continental-tsio-520-e

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 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 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 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 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 69-18-05](https://openairdocs.org/ad/69-18-05): Turbocharger Lubricating Oil Scavenge Pump · Continental Motors TSIO-520-B, TSIO-520-D and TSIO-520-E. Effective Sep 4, 1969
- [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 2022-04-04](https://openairdocs.org/ad/2022-04-04) (historical): 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 Mar 29, 2022
- [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 (6)

- [N402CZ](https://openairdocs.org/aircraft/N402CZ): [Emission-Air Inc](https://openairdocs.org/faa-owner/EMISSION-AIR%20INC), [Welcome, NC](https://openairdocs.org/faa-place/NC/Welcome), built 1972, S/N 402B0213
- [N402DZ](https://openairdocs.org/aircraft/N402DZ): [Samadi Jamshid](https://openairdocs.org/faa-owner/SAMADI%20JAMSHID), [Leesburg, VA](https://openairdocs.org/faa-place/VA/Leesburg), S/N 4020214
- [N41GD](https://openairdocs.org/aircraft/N41GD): [Valiair Lc Trustee](https://openairdocs.org/faa-owner/VALIAIR%20LC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), S/N 401B-0218
- [N7864F](https://openairdocs.org/aircraft/N7864F): [Keller Russell L](https://openairdocs.org/faa-owner/KELLER%20RUSSELL%20L), [Runaway Bay, TX](https://openairdocs.org/faa-place/TX/Runaway%20Bay), built 1968, S/N 4010207
- [N807WS](https://openairdocs.org/aircraft/N807WS): [Inter Island Freight LLC](https://openairdocs.org/faa-owner/INTER%20ISLAND%20FREIGHT%20LLC), [Deerfield Beach, FL](https://openairdocs.org/faa-place/FL/Deerfield%20Beach), built 1968, S/N 4010300
- [N82TA](https://openairdocs.org/aircraft/N82TA): [Janes Paul A](https://openairdocs.org/faa-owner/JANES%20PAUL%20A), [Ontario, OR](https://openairdocs.org/faa-place/OR/Ontario), built 1968, S/N 402-0156

## NTSB investigations (7)

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 WPR20FA065](https://openairdocs.org/ntsb/WPR20FA065), Jan 15, 2020: Cessna T310 (N5805M), Roy, UT, substantial damage, 1 fatal. Probable cause: The pilot’s inadequate preflight fuel planning and fuel management, which resulted in a total loss of power to the left engine due to fuel exhaustion. Also causal was the pilot's failure to follow…
- [NTSB WPR11LA269](https://openairdocs.org/ntsb/WPR11LA269), Jun 20, 2011: Cessna 402 (N3278Q), Caldwell, ID, substantial damage. Probable cause: The total loss of power in one engine during takeoff due to the blockage of fuel flow by a foreign object in the fuel tank.
- [NTSB CHI02LA210](https://openairdocs.org/ntsb/CHI02LA210), Jul 24, 2002: Cessna 402B (N22PB), St. Louis, MO, substantial damage. Probable cause: The landing gear collapsed for undetermined reasons.
- [NTSB ANC83IA053](https://openairdocs.org/ntsb/ANC83IA053), Mar 6, 1983: Cessna 401 (N7864F), Bethel, AK, incident, minor damage
- [NTSB MKC78DA070](https://openairdocs.org/ntsb/MKC78DA070), Sep 18, 1978: Cessna 401A (N6238Q), Garden City, KS, substantial damage
- [NTSB FTW72DQG23](https://openairdocs.org/ntsb/FTW72DQG23), Nov 14, 1971: Cessna 401A (N6238Q), Amarillo, TX, substantial damage
- [NTSB FTW71FQG69](https://openairdocs.org/ntsb/FTW71FQG69), May 2, 1971: Cessna 401A (N6238Q), Dalhart, TX, substantial damage

## FAA accident and incident reports (10)

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 20210314001339I](https://openairdocs.org/incident/20210314001339I), Mar 14, 2021: Cessna 402 (N82TA), Caldwell, ID, Minor damage. N82TA experienced a loud bang after take off and transitioning landing gear to the up position for a parachute event. Pilot tried to cycle gear several times…
- [Accident 20200115003599A](https://openairdocs.org/incident/20200115003599A), Jan 15, 2020: Cessna T-310P (N5805M), Roy, UT, Destroyed, 1 fatal. Pilot picked up aircraft from kbtf after having maintenance work done on left wingtip fuel tank, mechanic stated that airplane only had 2.5 gallons fuel in…
- [Incident 20121103024109I](https://openairdocs.org/incident/20121103024109I), Nov 3, 2012: Cessna 402B (N402CZ), Milwaukee, WI, Minor damage. On Saturday November 3, 2012, Cessna 402B, N402CZ, flight no. FRG1540 departed mke at approximately 07:15 CDT with a destination of mrj. When the aircraft was…
- [Accident 20110620013869A](https://openairdocs.org/incident/20110620013869A), Jun 20, 2011: Cessna 402 (N3278Q), Caldwell, ID, Destroyed. The pilot, [privacy data omitted], while conducting skydiving operations for skydown, expierienced a loss of power in the right engine on climb out. At…
- [Incident 20070828019109I](https://openairdocs.org/incident/20070828019109I), Aug 28, 2007: Cessna 401A (N6238Q), Titusville, FL, Minor damage. (-23) N6238Q reported gear down with no lights, twr advised gear not down. A/c went to holding pattern to perform emergency extension and got 3 green, did low…
- [Incident 20040301004669I](https://openairdocs.org/incident/20040301004669I), Mar 1, 2004: Cessna 402B (N22PB), Cahokia, IL. (-23) The pilot was repositioning N22PB from festus, MO (fes) to st. Louis Downtown airport (cps) with a landing on runway 12R. Winds upon landing were…
- [Accident 20020723027529A](https://openairdocs.org/incident/20020723027529A), Jul 23, 2002: Cessna 402B (N22PB), St Louis, MO, Substantial damage. (-23) On July 23, 2002 at approximately 21:17 hrs Mr. Jason andrew anderson landed at st. Louis international airport (stl) on runway 30R. After touch down Mr.…
- [Incident 19920225009779I](https://openairdocs.org/incident/19920225009779I), Feb 25, 1992: Cessna 402B (N22PB), Duenweg, MO, Minor damage. Pilot lost total engine power during descent. Forced landing in field. Found pilot had mismanaged his fuel.
- [Incident 19830305073509I](https://openairdocs.org/incident/19830305073509I), Mar 5, 1983: Cessna 401 (N7864F), Bethel, AK, Minor damage. Exhaust pipe slipped its securing bracket and came off the turbocharger. Caused a engine fire from the hot exhaust.
- [Accident 19780918032969A](https://openairdocs.org/incident/19780918032969A), Sep 18, 1978: Cessna 401 (N6238Q), Garden City, KS, Substantial damage. L-hand bellcrank assembly,p/n 5041001-1,broken.

## Service difficulty reports (211, newest 50)

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

- [SDR DUFA20160527001](https://openairdocs.org/sdr/DUFA20160527001), May 27, 2016: CYLINDER HEAD. MELTED. PILOT WAS SETTING UP FOR INITIAL APPROACH WHEN THE LT ENG BEGAN TO RUN A LITTLE ROUGH. THE INSTRUCTOR NOTICED THE FUEL FLOW BEGIN TO DROP A LITTLE SO THE AUXILI
- [SDR DUFA20150714002](https://openairdocs.org/sdr/DUFA20150714002), Jul 7, 2015: DISTRIBUTOR BLK. DEFECTIVE. WHILE ON CLIMB OUT, THE PILOT BEGAN TO FEEL A SLIGHT VIBRATION COMING FROM THE LT ENG. ELECTED TO RETURN TO THE AIRPORT WHERE HE MADE AN UNEVENTFUL LANDING. UPO
- [SDR M7JA20150603001](https://openairdocs.org/sdr/M7JA20150603001), May 22, 2015: LANDING GEAR. COLLAPSED. AFTER LANDING ROLL OUT RT MLG COLLAPSED.
- [SDR DUFA20150331001](https://openairdocs.org/sdr/DUFA20150331001), Mar 30, 2015: MAGNETO. CRACKED. WHILE IN CRUISE FLIGHT AT FL7000 THE RT ENG SUDDENLY BEGAN RUNNING VERY ROUGH. THE PILOT SUSPECTED LOW FUEL FLOW SO HE ADJUSTED THE MIXTURE TO FULL RICH & SELEC
- [SDR 2015F00053](https://openairdocs.org/sdr/2015F00053), Mar 14, 2015: PISTON RING. ERODED. PISTON PARTIALLY ERODED, FROZEN RINGS, ONE HOLE IN ONE RING GLANDS. ALUMINUM POWDER CONTAMINATION THROUGH THE ENGINE AND FILTER. ENGINE 50 SMOH
- [SDR M7JA20150319001](https://openairdocs.org/sdr/M7JA20150319001), Mar 14, 2015: PISTON. ERODED. PISTON PARTIALLY ERODED, FROZEN RING D, ONE LUBRICATION HOLE IN ONE RING GLANDS, ALUMINUM POWDER CONTAMINATION THROUGH THE ENG & FILTER.
- [SDR EBTR20150309008](https://openairdocs.org/sdr/EBTR20150309008), Mar 5, 2015: UNKNOWN. UNKNOWN. SHORTLY AFTER TAKE-OFF AT APPROXIMATELY 200 FT AGL, PILOT NOTICED PARTIAL LEFT ENGINE POWER LOSS WITH ENGINE FUEL FLOW SURGING FROM MINIMUM TO MAXIMUM. DECLARED
- [SDR CA140625006](https://openairdocs.org/sdr/CA140625006), Jun 25, 2014: FITTING. CRACKED. (CAN) WHEN COMPLETING THE SID INSPECTION PROGRAM THE LT ELEVATOR WAS REMOVED FOR INSPECTION. A TAPER PIN, PASSES THROUGH A FITTING. THE FITTING WAS FOUND CRACKE
- [SDR RC2R201406230071](https://openairdocs.org/sdr/RC2R201406230071), Jun 18, 2014: PROPELLER. CRACKED. PROPELLER CRACKED AND CORRODED. INSTALLED NEW HUB AND BLADES. PROPELLER WAS REPORTED TO NOT GO INTO FEATHER. NEW BLADE BEARINGS WERE INSTALLED AT LAST OVERHAUL.
- [SDR EBTR20130305007](https://openairdocs.org/sdr/EBTR20130305007), Mar 5, 2013: LUG. FAILED. APPROXIMATELY 1.5 HRS INTO FLIGHT, PILOT NOTED RT ENGINE MANIFOLD PRESSURE DROPPED AFTER SWITCHING FUEL TANKS ADJUSTED POWER, ENGINE MANIFOLD PRESSURE DROPPED A
- [SDR XGN2013F00000](https://openairdocs.org/sdr/XGN2013F00000), Feb 25, 2013: CASE. CRACKED. ENGINE CASE CRACK FROM CYLINDER NR3 LOWER AFT THRU BOLT AREA THRU MIDDLE OF CASE TOWARDS CYLINDER NR4 INCLUDING CRACK INTO THE OTHER CASE HALF.
- [SDR XGN2012F00001](https://openairdocs.org/sdr/XGN2012F00001), Jun 18, 2012: ENGINE. DAMAGED. PILOT REPORTED LOSING OIL PRESSURE ON THE LEFT ENGINE IN CRUISE FLIGHT. THE ENGINE WAS SHUT DOWN IN FLIGHT TO PREVENT DAMAGE. REMOVAL OF THE OIL FILTER AND ITS 
- [SDR CA120524012](https://openairdocs.org/sdr/CA120524012), May 23, 2012: COTTER PIN. MISSING. (CAN) IN LEVEL CRUISE FLGHT THE LT ALTERNATOR STOPPED PRODUCING POWER. AFTER LANDING OIL WAS DISCOVERED UNDER THE LT ENGINE. THE ALTERNATOR WAS REMOVED. THE ALT
- [SDR XGNA2011F00001](https://openairdocs.org/sdr/XGNA2011F00001), Jan 18, 2011: CYLINDER. CRACKED. NR 4 CYLINDER CACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER THAT THE CYLINDER HEAD WAS MFG WITH THE M
- [SDR XGNA2011F00002](https://openairdocs.org/sdr/XGNA2011F00002), Jan 18, 2011: CYLINDER. CRACKED. NR 2 CYLINDER CRACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER THAT THE CYLINDER HEAD WAS MFG WITH THE 
- [SDR XGN2011F00003](https://openairdocs.org/sdr/XGN2011F00003), Jan 18, 2011: CYLINDER. CRACKED. NR 1 CYLINDER CRACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER THAT THE CYLINDER HEAD WAS MFG WITH THE 
- [SDR 2011F00010](https://openairdocs.org/sdr/2011F00010), Dec 16, 2010: SENSOR. FAILED. EFIS SYSTEM, AVIONICS PRIMARY FLIGHT DISPLAY LOST ALL ATTITUDE, HEADING, AND NAVIGATION DATA AND DISPLAYED "RED X" FAIL INDICATIONS.
- [SDR 2011F00011](https://openairdocs.org/sdr/2011F00011), Nov 2, 2010: SENSOR. FAILED. EFIS SYS, AVIONICS EFD1000C3 PRIMARY FLIGHT DISPLAY SYS, EXPERIENCED A COMPLETE FAILURE SHORTLY AFTER TAKEOFF. SCREEN WENT COMPLETELY BLACK AND CREW WAS UNABLE 
- [SDR 2011F00012](https://openairdocs.org/sdr/2011F00012), Oct 29, 2010: MODULE. FAILED. EFIS SYS, EFD1000C3 PRIMARY FLIGHT DISPLAY SHOWED ERRATIC HEADING INDICATIONS DURING A PRACTICE INSTRUMENT APPROACH WHILE CONDUCTING PILOT TRAINING. SHORTLY AFT
- [SDR CA101021004](https://openairdocs.org/sdr/CA101021004), Oct 21, 2010: FITTING. CRACKED. RT ELEVATOR END FITTING CRACKED AT TAPER PIN HOLE. FOUND DURING INSP.
- [SDR DUFA20100005](https://openairdocs.org/sdr/DUFA20100005), Jan 19, 2010: CONNECTING ROD. DESTROYED. WHILE IN CRUISE FLIGHT, THE PILOT REPORTED THE LT ENG SUDDENLY LOST FUEL FLOW AND RPM. HE ATTEMPTED TO RESTART THE ENGINE SELECTING OTHER FUEL SOURCES WITHOUT S
- [SDR CA091203004](https://openairdocs.org/sdr/CA091203004), Nov 18, 2009: HUB. UNSERVICEABLE. (CAN) UPON VISUAL INSP OF HUB PARTS THE HUB WAS FOUND TO BE UNSERVICABLE DUE TO EXPANSION PLUG HOLES WERE DRILLED IN THE CRITICAL AREA. THE HUB WAS RETURNED TO 
- [SDR CA090616011](https://openairdocs.org/sdr/CA090616011), Jun 15, 2009: DOWNLOCK SWITCH. FAILED. (CAN) PILOT REPORTED INTERMITTENT LT MAIN GEAR DOWNLOCK INDICATION, REPLACED BULB TO TROUBLESHOOT, PROBLEM NOT FIXED CONTACTED GROUND PERSONNEL AND MADE LOW PAS
- [SDR CA090410001](https://openairdocs.org/sdr/CA090410001), Apr 8, 2009: FITTING. OBSTRUCTED. (CAN) ENGINE OIL PRESSURE FLUCTUATES AND DOWN TO 0 PSI WHILE REDUCED POWER TO LAND, PILOT SHUTDOWN ENGINE AND LAND SAFELY. FURTHER INVESTIGATION REVEALED OIL PR
- [SDR 2009FA0000262](https://openairdocs.org/sdr/2009FA0000262), Mar 7, 2009: BOLT. LOOSE. THE MLG ASSEMBLIES ON THIS ACFT WERE REMOVED TO BETTER FACILITATE A COMPLETE AND DETAILED INSP OF THE ASSEMBLIES. THIS WAS DONE DURING THE CURSE OF AN ANNUAL IN
- [SDR XGN2008F00013](https://openairdocs.org/sdr/XGN2008F00013), Sep 29, 2008: CYLINDER. CRACKED. CASE CRACKED, TOP OF NR 1 CYL, FWD TOP STUD 3 INCHES LONG. GOING UP TO TOP OF CASE. (K)
- [SDR CA080930006](https://openairdocs.org/sdr/CA080930006), Jul 23, 2008: WHEEL. CRACKED. (CAN) RT MAIN WHEEL ASSY BEAD AREA FOUND CRACKED. WHEEL REPLACED WITH SERVICEABLE UNIT.
- [SDR PI82008F00000](https://openairdocs.org/sdr/PI82008F00000), Jul 18, 2008: TURBOCHARGER. FAILED. TURBOCHARGER FAILED IN FLIGHT AT CRUISE. (A)
- [SDR YJV2009F00000](https://openairdocs.org/sdr/YJV2009F00000), Jun 27, 2008: CONNECTING ROD. BROKEN. ENGINE VIBRATING, HIGH OIL TEMP AND LOW OIL PRESSURE. POST FLIGHT FOUND NR 2 CONNECTING ROD BROKEN. (K)
- [SDR CA080314013](https://openairdocs.org/sdr/CA080314013), Mar 7, 2008: ENGINE. MAKING METAL. (CAN) ON FINAL APPROACH INTO AIRPORT THE RT ENGINE MANIFOLD PRESSURE STARTED CHANGING. THE PILOT THEN NOTICED THAT THE RT OIL PRESSURE HAD DROPPED TO THE RED LI
- [SDR XGN2008F00003](https://openairdocs.org/sdr/XGN2008F00003), Feb 27, 2008: CYLINDER. CRACKED. CYLINDER CRACKED BETWEEN FIN NR1-3 BEHIND INJECTOR, DEFECTIVE PRODUCT. (K)
- [SDR XGN2008F00004](https://openairdocs.org/sdr/XGN2008F00004), Feb 27, 2008: CYLINDER. CRACKED. CYLINDER CRACKED BEHIND NR 1-3 FIN BY FUEL INJECTOR, DEFECTIVE PRODUCT. (K)
- [SDR XGN2008F00005](https://openairdocs.org/sdr/XGN2008F00005), Feb 27, 2008: CYLINDER. CRACKED. CYLINDER CRACKED BETWEEN NR 1-3 FIN BEHIND INJECTOR, DEFECTIVE PRODUCT. (K)
- [SDR 2008FA0000260](https://openairdocs.org/sdr/2008FA0000260), Feb 27, 2008: CYLINDER. CRACKED. CRACKED BETWEEN FIN NR1-3, BEHIND INJECTOR. DEFECTIVE PRODUCT. (K)
- [SDR FFKA122](https://openairdocs.org/sdr/FFKA122), Dec 14, 2007: CONNECTING ROD. BROKEN. PILOT REPORTED A LOSS OF POWER AND DECLARED AN EMERGENCY. MAINTENANCE INVESTIGATED THE LT ENGINE AND FOUND A HOLE IN THE CASE HALF AT THE BASE OF THE NR 6 CYLIN
- [SDR DUFA081607001](https://openairdocs.org/sdr/DUFA081607001), Aug 16, 2007: DRIVE ASSY. SHEARED. WHILE IN CRUISE FLIGHT, THE PILOT NOTICED OIL STREAMING FROM THE TOP OF THE LT ENGINE COWL. THE OIL PRESSURE WAS STILL IN THE NORMAL OPERATING RANGE AND THE ENG
- [SDR DUFA20070004](https://openairdocs.org/sdr/DUFA20070004), Aug 16, 2007: DRIVE ASSY. SHEARED. WHILE IN CRUISE FLIGHT THE PILOT NOTICED OIL STREAMING FROM THE TOP OF THE LT ENGINE COWL. THE OIL PRESSURE WAS STILL IN THE NORMAL OPERATING RANGE AND THE ENGI
- [SDR 2007FA0000342](https://openairdocs.org/sdr/2007FA0000342), Apr 21, 2007: CONNECTING ROD. FAILED. DURING CLIMB AFTER THE POWER HAD BEEN REDUCED FROM THE TAKEOFF SETTING, THE RT ENGINE STARTED TO VIBRATE. THE PILOT COULD SEE OIL SPLASHING FROM AROUND THE OIL 
- [SDR CA070115015](https://openairdocs.org/sdr/CA070115015), Jan 12, 2007: MOUNT. LOOSE. (CAN) DURING SCHEDULED LANDING GEAR ROUTINE INSPECTION, LANDING GEAR ACTUATOR GEARBOX MOUNTING BOLTS (3) FOUND MISSING AND REMAINING (1) BOLT FOUND SHEARED. EME
- [SDR XGN2007F00000](https://openairdocs.org/sdr/XGN2007F00000), Dec 26, 2006: CYLINDER HEAD. CRACKED. CRACKED CYLINDER HEAD. (K)
- [SDR XGN2007F00010](https://openairdocs.org/sdr/XGN2007F00010), Dec 26, 2006: CYLINDER. CRACKED. CRACKED CYLINDER HEAD. (K)
- [SDR 2006FA0001141](https://openairdocs.org/sdr/2006FA0001141), Nov 20, 2006: LINE. LEAKING. PILOT REPORTED FUEL SMELL IN THE CABIN WHEN CABIN HEATER IS ON. FURTHER INVESTIGATION REVEALED A PIN HOLE CAUSED BY CORROSION IN THE CABIN HEATER FUEL LINE JUST
- [SDR XGN2007F00004](https://openairdocs.org/sdr/XGN2007F00004), Nov 9, 2006: CYLINDER HEAD. CRACKED. CYLINDER HEAD CRACKED IN THE EXHAUST SIDE. (K)
- [SDR XGN2007F00016](https://openairdocs.org/sdr/XGN2007F00016), Nov 9, 2006: CYLINDER. CRACKED. CYLINDER HEAD CRACKED IN THE EXHAUST SIDE. (K)
- [SDR CA061023005](https://openairdocs.org/sdr/CA061023005), Oct 12, 2006: CASE. CRACKED. (CAN) THE ENGINE HAD A SMALL OIL LEAK. AFTER REMOVING THE DIP STICK ASSEMBLY, A CRACK WAS FOUND BETWEEN NR 2 AND NR 4 CYLINDERS. THE ENGINE WAS REMOVED FOR OVER
- [SDR 2006FA0000683](https://openairdocs.org/sdr/2006FA0000683), Jul 17, 2006: CRANKCASE. CRACKED. FOUND A CRACK IN BOTH CASE HALVES AT THE FOURTH AFT BOLT HOLE FROM FRONT OF CASE AT 12 O'CLOCK POSITION. CRACKS WAS FOUND ON AN INSPECTION OF ENGINE.
- [SDR 2006FA0000682](https://openairdocs.org/sdr/2006FA0000682), Jul 17, 2006: CRANKCASE. CRACKED. FOUND A CRACK IN BOTH CASE HALF AT THE FOURTH AFT BOLT HOLE FROM FRONT OF CASE AT 12 O'CLOCK POSITION. CRACKS WERE FOUND ON AN INSPECTION OF ENGINE.
- [SDR XGN2006F00013](https://openairdocs.org/sdr/XGN2006F00013), May 23, 2006: CYLINDER. CRACKED. CYLINDER HEAD CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00014](https://openairdocs.org/sdr/XGN2006F00014), May 23, 2006: CYLINDER. CRACKED. CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00025](https://openairdocs.org/sdr/XGN2006F00025), May 20, 2006: CYLINDER. CRACKED. CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)

All 211: https://openairdocs.org/engine/continental-tsio-520-e/reports.md

## STCs that may be installed (OpenAirDocs) (57, 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 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 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 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

All 57: https://openairdocs.org/engine/continental-tsio-520-e/stcs.md

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