# Continental IO-520-E

- Type: Engine model (FAA registry)
- Registry code: 17240
- Manufacturer (registry): CONT MOTOR
- Model: IO-520-E
- Engine type: Reciprocating
- Power: 300 hp
- Data sheet: [TCDS E5CE](https://openairdocs.org/tcds/E5CE) (OpenAirDocs)
- Holder: Continental Aerospace Technologies, Inc.
- Installed in: 2 registered aircraft
- Page: https://openairdocs.org/engine/continental-io-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 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 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 93-08-17](https://openairdocs.org/ad/93-08-17): Oil Pick-Up Tube · Continental Motors IO-470-A, IO-470-C, IO-470-D and 104 more. Effective Aug 23, 1993
- [AD 93-10-02](https://openairdocs.org/ad/93-10-02): Missing Cylinder Valve Retainer Key · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 180 more. Effective Aug 12, 1993
- [AD 91-19-03](https://openairdocs.org/ad/91-19-03): Oil Filter · Continental Motors 6-285-A, 6-285-B, 6-285-BA and 169 more. Effective Sep 29, 1991
- [AD 88-03-06](https://openairdocs.org/ad/88-03-06): Oil Filter · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 155 more. Effective Apr 15, 1988
- [AD 86-13-04 R3](https://openairdocs.org/ad/86-13-04-R3): Cylinder Assemblies · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 44 more. Effective Feb 24, 1988
- [AD 81-24-06](https://openairdocs.org/ad/81-24-06): Engine Driven Fuel Pumps · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 51 more. Effective Nov 23, 1981
- [AD 81-16-05](https://openairdocs.org/ad/81-16-05): Magnetos · Lycoming Engines AEIO-320-E1B, AEIO-320-E2B, AEIO-360-B1G6 and 234 more. Effective Aug 6, 1981
- [AD 80-01-04](https://openairdocs.org/ad/80-01-04): Cylinder Holddown Flange Assemblies · Continental Motors IO-520-A, IO-520-B, IO-520-BA and 44 more. Effective Jan 25, 1980
- [AD 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 70-14-07](https://openairdocs.org/ad/70-14-07): Fuel Injection Pump · Continental Motors IO-360-A, IO-360-C, IO-360-D and 25 more. Effective Nov 22, 1974
- [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 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 (2)

- [N311PW](https://openairdocs.org/aircraft/N311PW): [Quantic LLC](https://openairdocs.org/faa-owner/QUANTIC%20LLC), [Morrisville, NC](https://openairdocs.org/faa-place/NC/Morrisville), built 1961, S/N 500A-1106-54
- [N313M](https://openairdocs.org/aircraft/N313M): [Bosco74 LLC](https://openairdocs.org/faa-owner/BOSCO74%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1963, S/N 500A-1276-99

## NTSB investigations

None matched to aircraft with this engine model.

## 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; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 19890911057129I](https://openairdocs.org/incident/19890911057129I), Sep 11, 1989: Cessna 210M (N7226A), Columbia, MO, Minor damage. Landed hard on nose gear breaking pieces out of tire rim and causing wheel fork failure.
- [Incident 19801109079289I](https://openairdocs.org/incident/19801109079289I), Nov 9, 1980: Rkwell 500A (N313M), Corpus Christi, TX, Minor damage. Zg nose gear did not lock in down position. Spacer pin assembly broken and pin missing from strut.

## Service difficulty reports (11)

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

- [SDR E5ZR2018061300177](https://openairdocs.org/sdr/E5ZR2018061300177), May 21, 2018: CONNECTING ROD. OIL STARVATION. AFTER TEARING DOWN OF THE ENGINE, THE NR 5 CYLINDER FAILED DUE TO OIL STARVATION OF THE CONNECTING ROD CAP FOR UNKNOWN REASONS. THIS CAUSED FAILURE OF THE ROD C
- [SDR E5ZR2018061300178](https://openairdocs.org/sdr/E5ZR2018061300178), May 21, 2018: CONNECTING ROD. FAILED. AFTER TEARING DOWN OF THE ENGINE IN QUESTION IT IS OUR OPINION THAT THE FAILURE WAS DO TO OIL STARVATION OF THE #5 CYLINDER CONNECTING ROD CAP FOR UNKNOWN REASO
- [SDR E5ZR20180613001](https://openairdocs.org/sdr/E5ZR20180613001), May 21, 2018: CONNECTING ROD. FAILED. AFTER TEARING DOWN THE ENGINE IN QUESTION IT IS OUR OPINION THAT THE FAILURE WAS DO TO OIL STARVATION OF THE NR 5 CYLINDER CONNECTING ROD CAP FOR UNKNOWN REASON
- [SDR CA120117004](https://openairdocs.org/sdr/CA120117004), Dec 23, 2011: MOUNT. BROKEN. (CAN) THE RT FORWARD ENGINE MOUNT LEG BROKE INTO 2 PIECES. THE PIECES REMAINED ATTACHED TO THE ENGINE AND THE ENGINE MOUNT.
- [SDR 2010FA0000409](https://openairdocs.org/sdr/2010FA0000409), Apr 3, 2010: BARREL. WORN. PILOT STATED THAT WHILE IN FLIGHT AT 5000 FT, HE WAS UNABLE TO CHANGE THE MIXTURE SETTING ON THE LT ENGINE. THIS ENGINE HAD JUST RETURNED FROM A MAJOR O/H DUE T
- [SDR 2007FA0001088](https://openairdocs.org/sdr/2007FA0001088), Nov 9, 2007: RIB. CRACKED. AT ANNUAL INSPECTION FOUND CRACK ON FLAP RIB. (FLAP ROD ATTACH POINT) BOTH LT AND RT FLAPS. (K)
- [SDR MHJ2002F00002](https://openairdocs.org/sdr/MHJ2002F00002), Feb 18, 2002: CYLINDER. SEPARATED. NR 4 CYLINDER FOUND SEPERATED FROM CRANKCASE, CAUSE UNKNOWN. ENGINE REMOVED FROM AIRCRAFT AND SENT TO OVERHAUL FACILITY.
- [SDR BSY2002F00004](https://openairdocs.org/sdr/BSY2002F00004), Feb 8, 2002: TACH GENERATOR. INOPERATIVE. LEFT TACH QUIT AFTER TAKE OFF, RETURNED TO AIRPORT. REMOVED AND REPLACED THE GENERATOR OPS CHECKS GOOD.
- [SDR 20000831SH017](https://openairdocs.org/sdr/20000831SH017), Aug 10, 2000: CAM. STRIPPED. ENGINE FAILURE CAUSED BY TEETH BEING STRIPPED OFF OF CAMGEAR. ONE TOOTH APPEARS TO HAVE BEEN FRACTURED AND THE FOLLOWING 6 TEETH WERE STRIPPED. GEAR WAS STILL P
- [SDR 97ZZZX2805](https://openairdocs.org/sdr/97ZZZX2805), May 19, 1997: ADAPTER. BINDING. WHILE PERFORMING COMPRESSION TEST, DISCOVERED ENGINE WOULD LOCK-UP WHEN ROTATED BACKWARDS. TROUBLESHOOTING REVEALED STARTER ADAPTER WAS CAUSE OF PROBLEM. FURTHE
- [SDR 95ZZZX2886](https://openairdocs.org/sdr/95ZZZX2886), May 19, 1995: CRANKSHAFT. CRACKED. EMERGENCY LANDING MADE DUE TO OIL LOSS AND PRESSURE LOSS. FOUND OIL LOSS AT APPROXIMATELY 1 QUART PER MINUTE AT 1,000 RPM. REMOVED PROPELLER AND FOUND FLANGE CR

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