# Continental IO-520-NB - Type: Engine model (FAA registry) - Registry code: 17242 - Manufacturer (registry): CONT MOTOR - Model: IO-520-NB - Engine type: Reciprocating - Power: 300 hp - Data sheet: [TCDS E5CE](https://openairdocs.org/tcds/E5CE) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/continental-io-520-nb 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 2023-02-12](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 2012-03-06](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 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 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 Historical (superseded or no longer in force): - [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 None registered with this engine model now. ## NTSB investigations None matched to aircraft with this engine model. ## FAA accident and incident reports None matched to aircraft with this engine model. ## Service difficulty reports (7) As reported by operators and repair stations, by the model named in the report. - [SDR 7ILA2015F00000](https://openairdocs.org/sdr/7ILA2015F00000), Jan 16, 2015: CYLINDER HEAD. CRACKED. WHILE PERFORMING 100 HR INSPECTION OF ACFT, FOUND CRACKS IN CYLINDERS NR 3 LOCATION, SN64015-16, NR 5 LOCATION, SN64016-17, NR 6 LOCATION, SN 63936-02. CRACKS W - [SDR 7ILA2015F00001](https://openairdocs.org/sdr/7ILA2015F00001), Jan 16, 2015: CYLINDER HEAD. CRACKED. WHILE PERFORMING 100 HR INSPECTION OF ACFT, FOUND CRACKS IN CYLINDERS NR 3 LOCATION, SN 64015-16, NR 5 LOCATION, SN 64016-17, NR 6 LOCATION, SN 63936-02. CRACKS - [SDR 7IL2015F00002](https://openairdocs.org/sdr/7IL2015F00002), Jan 16, 2015: CYLINDER HEAD. CRACKED. WHILE PERFORMING 100 HR INSPECTION OF ACFT, FOUND CRACKS IN CYLINDERS NR 3 LOCATION, SN64015-16, NR 5 LOCATION, SN64016-17, NR 6 LOCATION, SN 63936-02. CRACKS W - [SDR 7IL2015F00003](https://openairdocs.org/sdr/7IL2015F00003), Jan 16, 2015: CYLINDER HEAD. CRACKED. WHILE PERFORMING 100 HR INSPECTION OF ACFT, FOUND CRACKS IN CYLINDERS: NR 3 LOCATION, SN60652-27, NR 5 LOCATION, SN 60652-25, NR 4 LOCATION, SN 606652-23. CRACK - [SDR 7IL2015F00004](https://openairdocs.org/sdr/7IL2015F00004), Jan 16, 2015: CYLINDER HEAD. CRACKED. WHILE PERFORMING 100 HR INSPECTION OF AIRCRAFT, FOUND CRACKS IN CYLINDERS: NR 3 LOCATION, SN60652-27, NR 5 LOCATION, SN 60652-25, NR 4 LOCATION, SN 606652-23. C - [SDR 7IL2015F00005](https://openairdocs.org/sdr/7IL2015F00005), Jan 16, 2015: CYLINDER HEAD. CRACKED. WHILE PERFORMING 100 HR INSPECTION OF ACFT, FOUND CRACKS IN CYLINDERS: NR 3 LOCATION, SN60652-27, NR 5 LOCATION, SN 60652-25, NR 4 LOCATION, SN 606652-23. CRACK - [SDR 7IL2015F00008](https://openairdocs.org/sdr/7IL2015F00008), Jan 16, 2015: BULKHEAD. CRACKED. WHILE PERFORMING 100 HR INSPECTION OF ACFT, FOUND SPINNER REAR BULKHEAD CRACKED. BULKHEAD SN DY-1863. ## STCs that may be installed (OpenAirDocs) (30) 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 IO-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 SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc - [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 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 IO-520 Series - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc - [STC SE09979SC](https://openairdocs.org/stc/SE09979SC): Modification of Teledyne Continental Motors IO-520-B, IO-520-BA, or IO-520-BB engine to an Ultimate Engines IO-550-B/UE engine. General Aviation Modifications, Inc - [STC SE1780NM](https://openairdocs.org/stc/SE1780NM): Installation of Precise Flight standby vacuum system (SVS III). Precise Flight Inc - [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation - [STC SE09997SC](https://openairdocs.org/stc/SE09997SC): Modification of Teledyne Continental Motors IO-520-B or IO-520-BA or IO-520-BB engine. Barrett Performance Aircraft. Lists IO-520 Series - [STC SE09513SC](https://openairdocs.org/stc/SE09513SC): Installation and usage of Exxon 20W50 Multigrade aircraft engine oil conforming to Exxon Oil Formulation WS-3013. Exxon Company USA. Lists IO-520 Series - [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 IO-520 Series - [STC SE09319SC](https://openairdocs.org/stc/SE09319SC): Modify oil pan adding a new oil sump drain. Texas Skyways Inc. Lists IO-520 Series - [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation - [STC SE8687SW](https://openairdocs.org/stc/SE8687SW): Regrooving of pistons P/N 631475 or P/N 632585. Capehart Industries, Inc. Lists IO-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 SE2197CE](https://openairdocs.org/stc/SE2197CE): Add the following approved fuel: leaded & unleaded automotive gasoline 91 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved. Petersen Aviation Inc - [STC SE3812SW](https://openairdocs.org/stc/SE3812SW): Recontouring and polishing(porting) of intake manifold and exhaust parts and air flow balancing. High Performance Aircraft. Lists IO-520 Series - [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists IO-520 Series - [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 IO-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 IO-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 IO-520 Series - [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists IO-520 Series ## PMA parts (OpenAirDocs) (over 1,000, first 50) Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first. - [OC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130007141720250923184432.0001): Oil Cooler Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Sep 12, 2025 - [AE15BA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177450459620250908153021.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALV-1015 · Aug 27, 2025 - [AE1132](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173449646420250908153023.0001): Slip Ring End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Numbers ALK-1132AS… · Aug 27, 2025 - [AE1003](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136431262720250908153020.0001): Drive End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number A2E1003K · Aug 27, 2025 - [AE2259](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131946761420250908153022.0001): Fan Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number 90-2259 · Aug 27, 2025 - [AE942](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131877492320250908153026.0001): Rotor Shaft. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-238 · Aug 27, 2025 - [AE1142](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130339571020250908153024.0001): Slip Ring End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Numbers ALE-1142AAS… · Aug 27, 2025 - [AE45BS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111705817820250908153020.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU1045BS · Aug 27, 2025 - [AE944](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103932767720250908153028.0001): Rotor Shaft. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALE-273 · Aug 27, 2025 - [AE45BS-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID102351889020250908153032.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-1045BS · Aug 27, 2025 - [HSS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138215977120250923185924.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025 - [TXPL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130997274520250923185923.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025 - [SL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125599638020250923185921.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025 - [AB-382584](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178585965820251216184454.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382584 · Dec 8, 2023 - [AB-90751-18](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173812890220251216184502.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-90751-18 · Dec 8, 2023 - [AB-92815-62](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155604486920251216184503.0001): Retainer Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-92815-62 · Dec 8, 2023 - [AB-349326](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151437189220251216184456.0001): Fish Paper. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349326 · Dec 8, 2023 - [AB-357173](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150252836920251216184451.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357173 · Dec 8, 2023 - [AB-90751-19](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145549394020251216184501.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-90751-19 · Dec 8, 2023 - [AB-400623](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144957477420251216184444.0001): Ball Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental… · Dec 8, 2023 - [AB-382585](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144246197920251216184453.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382585 · Dec 8, 2023 - [AB-349263](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143018368220251216184505.0001): O-Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349263 · Dec 8, 2023 - [ES10-35936-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134201689020251216184428.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35936-7 · Dec 8, 2023 - [AB-349511](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128303981120251216184439.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-349511 · Dec 8, 2023 - [AB-357174](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127763958220251216184450.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357174 · Dec 8, 2023 - [ES6382](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188907311520240301172633.0001): Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 6382 · Dec 1, 2023 - [ES649954](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185377691220240301172643.0001): Gasket. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 534750, 649954, M3411, SA534750 · Dec 1, 2023 - [ES6362](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159685227220240301172631.0001): Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 6362 · Dec 1, 2023 - [ES6310](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146164804520240301172628.0001): Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 6310 · Dec 1, 2023 - [ES1553](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144237446020240301172642.0001): Screw, Harness Cap. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M1553 · Dec 1, 2023 - [ES6380](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130553429120240301172632.0001): Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 6380 · Dec 1, 2023 - [ES3328](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID130133017720240301172626.0001): Clamp Kit. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3328, K3328 · Dec 1, 2023 - [TA2927-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143910433620231109131600.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [TA2927-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107190435020231109131559.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [ES649954](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189156851920230502200157.0001): Gasket. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 534750, 649954, M3411, SA534750 · Feb 9, 2023 - [ES1553](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147287171120230330124416.0001): Screw, Harness Cap. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces M1553 · Oct 27, 2022 - [MHJ‐4003S](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189912148520220916164357.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Prestolite MHJ-4003Continental 637847… · May 16, 2022 - [ALX-9522](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168320665320220916095403.0001): Alternator Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Electrosystems ALX-9522R · May 3, 2022 - [ES6310](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID940344496220210713131226.0001): Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 6310 · May 24, 2021 - [ES6362](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID745744258220210713131234.0001): Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 6362 · May 24, 2021 - [ES6380](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID589459656520210713131240.0001): Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces ES6380 · May 24, 2021 - [ES6382](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID493771614320210713131241.0001): Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 6382 · May 24, 2021 - [ES3328](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109559281220210713131244.0001): Clamp Kit. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces M3328, K3328 · May 21, 2021 - [MDL-2012ES-AC](https://drs.faa.gov/browse/excelExternalWindow/EB40517EE0F11578862585DE00509BC7.0001): Kit Brush Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces MDL-2012ES, as used in starter motors… · Sep 1, 2020 - [646492AC](https://drs.faa.gov/browse/excelExternalWindow/DCD52D363684284E862585DE005077C9.0001): Bearing - Ball, Single Row. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 646492, as used in alternators 646843… · Sep 1, 2020 - [ES646376-AC](https://drs.faa.gov/browse/excelExternalWindow/D5E4835101AAD035862585DE0050951E.0001): Field Coil. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces ES646376 · Sep 1, 2020 - [MCL-1005PS-1-AC](https://drs.faa.gov/browse/excelExternalWindow/D17B06E0367F221F862585DE0050958D.0001): Field Coil. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces MCL-1005PS-1, as used in starter… · Sep 1, 2020 - [646495A1AC](https://drs.faa.gov/browse/excelExternalWindow/B952506D420A9B22862585DE00507E93.0001): Kit, Alternator Drive End. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 646495A1, as used in alternators… · Sep 1, 2020 - [ML-18A-AC](https://drs.faa.gov/browse/excelExternalWindow/B78F4E07A96B1B71862585DE00509151.0001): Bushing, Drive End Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces ML-18A, as used in starter motors… · Sep 1, 2020 - [MDL-1005FS-AC](https://drs.faa.gov/browse/excelExternalWindow/B1607E03348298F6862585DE0050980C.0001): Field Coil. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces MDL-1005FS, as used in starter motors… · Sep 1, 2020 All of them: https://openairdocs.org/engine/continental-io-520-nb/pma.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.