# Continental IO-470-C - Type: Engine model (FAA registry) - Registry code: 17383 - Manufacturer (registry): CONT MOTOR - Model: IO-470-C - Engine type: Reciprocating - Power: 250 hp - Data sheet: [TCDS E-273](https://openairdocs.org/tcds/E-273) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 3 registered aircraft - Page: https://openairdocs.org/engine/continental-io-470-c 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 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 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 97-21-02](https://openairdocs.org/ad/97-21-02): Cylinders · Continental Motors E165-2, E165-3, E165-4 and 61 more. Effective Oct 27, 1997 - [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 95-21-15](https://openairdocs.org/ad/95-21-15): Aviation Gasoline · Continental Motors A-65-8, C85-12F, C85-12FJ and 77 more. Effective Nov 28, 1995 - [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 85-08-02](https://openairdocs.org/ad/85-08-02): Cylinder Assemblies · Continental Motors IO-470-C, O-470-G, O-470-K and 4 more. Effective Apr 15, 1985 - [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 80-06-05](https://openairdocs.org/ad/80-06-05): Magnetos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 254 more. Effective Mar 28, 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 67-01-04](https://openairdocs.org/ad/67-01-04): Oil Filters · Full flow oil filter (Superior Flow STC SA401SW or 2 others). Effective Jan 2, 1967 - [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 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 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 94-14-12](https://openairdocs.org/ad/94-14-12) (historical): Octane Aviation Gasoline · Teledyne Continental Motors A-65-8, C85-12, E185-11 and 68 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 - [AD 97-15-01](https://openairdocs.org/ad/97-15-01) (historical): Pistons · Teledyne Continental Motors E165-2, E165-3, E165-4 and 61 more ## Information bulletins (advisory) (6) - [SAIB NE-20-05](https://openairdocs.org/saib/NE-20-05): POWERPLANT - Engine Camshaft Gear Tooth Fracture. Issued Apr 6, 2020 - [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-09-08](https://openairdocs.org/saib/NE-09-08): Reciprocating Engine Cylinder Section. Issued Jan 30, 2009 ## Registered aircraft (3) - [N3005C](https://openairdocs.org/aircraft/N3005C): [Fodor Vincent A](https://openairdocs.org/faa-owner/FODOR%20VINCENT%20A), [Doylestown, OH](https://openairdocs.org/faa-place/OH/Doylestown), built 1958, S/N D-5668 - [N535TX](https://openairdocs.org/aircraft/N535TX): [Coolidge Robert P](https://openairdocs.org/faa-owner/COOLIDGE%20ROBERT%20P), [Rio Vista, TX](https://openairdocs.org/faa-place/TX/Rio%20Vista), built 1960, S/N D-6396 - [N980SE](https://openairdocs.org/aircraft/N980SE): [Kfg Aviation Inc](https://openairdocs.org/faa-owner/KFG%20AVIATION%20INC), [Huntersville, NC](https://openairdocs.org/faa-place/NC/Huntersville), S/N D5580 ## 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 SEA73DYA28](https://openairdocs.org/ntsb/SEA73DYA28), May 11, 1973: Beech J35 (N3005C), Cascade, ID, substantial damage ## 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. - [Incident 20080509854599I](https://openairdocs.org/incident/20080509854599I), May 9, 2008: Beech J35 (N8388D), New Hudson, MI, Minor damage. Pilot landed aircraft and raised landing gear instead of flaps. - [Incident 20061216030219I](https://openairdocs.org/incident/20061216030219I), Dec 16, 2006: Beech J35 (N8388D), New Hudson, MI, Minor damage. (-23) Aircraft N8388D gear up landing at oakland - sw airport. - [Incident 19971012035529I](https://openairdocs.org/incident/19971012035529I), Oct 12, 1997: Beech J35 (N8388D), Newton, IL, Minor damage. Narrative: on 10/12/97, at 1840 CDT/2340Z, N8388D, BE-35-J35 (bonanza) landed in a soybean field approximately .25 mile from Jasper county flying club airport,… - [Accident 19730511011749A](https://openairdocs.org/incident/19730511011749A), May 11, 1973: Beech J35 (N3005C), Cascade, ID, Substantial damage. Wg hit car parked close to taxiway. ## Service difficulty reports (18) As reported by operators and repair stations, by the model named in the report. - [SDR 2014FA0000642](https://openairdocs.org/sdr/2014FA0000642), Oct 29, 2014: ADAPTER. DAMAGED. THE OIL FILTER ADAPTER HAD SEPARATED, PULLED OUT OF OIL PUMP HOUSING, DUE TO THE FAILURE/SHEARING OF THE ATTACHMENT THREADS. THIS FAILURE ALLOWED ALL ENGINE OIL - [SDR 2014FA0000660](https://openairdocs.org/sdr/2014FA0000660), Oct 13, 2014: PISTON. DESTROYED. SEVERE ENGINE DAMAGE FOUND DURING SCHEDULED 50 HR INSPECTION: DURING OIL AND FILTER CHANGE, CHIPS AND LARGE METAL PIECES WERE FOUND IN THE OIL, OIL SCREEN, OIL - [SDR 2014FA0000415](https://openairdocs.org/sdr/2014FA0000415), May 17, 2014: LOCK NUT. BACKED OUT. WHEN ATTEMPTING TO TRANSITION FROM CRUISE TO DESCENT, THE WIDE-OPEN THROTTLE WAS UNMOVABLE. THIS WAS DUE TO THE FACT THE THROTTLE LEVER WITH ITS FEMALE 45º X 1/ - [SDR W59R2012043031326](https://openairdocs.org/sdr/W59R2012043031326), Apr 27, 2012: HUB. CRACKED. PROPELLER SUBMITTED FOR OIL LEAK. DURING REPAIR, THE HUB WAS MAGNETIC PARTICLE INSPECTED IAW AD 62-17-01. HUB WAS FOUND CRACKED IN THE WELD AREA, WHICH IS THE S - [SDR 2009FA0001050](https://openairdocs.org/sdr/2009FA0001050), Oct 18, 2009: CYLINDER. DESTROYED. (2) FLT HRS INTO CRUISE FLT, ENGINE LOST POWER ON NR 2 CYL AS INDICATED ON UBG-16. SHORTLY AFTER, NR 2 CYL JUG BLEW THROUGH THE ENG COWL, SPRAYING OIL OVER WIND - [SDR 2005FA0000983](https://openairdocs.org/sdr/2005FA0000983), May 5, 2005: ROD END. DEFECTIVE. THE BEARING END PARTED FROM THE THREAD PORTION OF THE ROD END, CAUSING COLAPSE OF THE NOSE LANDING GEAR. THE DEFECT APPEARED ON ROLL OUT AFTER LANDING, WHEN THE - [SDR 2004FA0000226](https://openairdocs.org/sdr/2004FA0000226), Feb 10, 2004: DIAPHRAGM. CRACKED. FUEL DIAPHRAGM ON THE FUEL MANIFOLD VALVE SHOWED DETERIORATION DUE TO AGEING. FUEL LEAKED OUT OF THE AIR BLEED HOLE ON THE FUEL MANIFOLD VALVE, CAUSING ENGINE F - [SDR 2004FA0000030](https://openairdocs.org/sdr/2004FA0000030), Dec 31, 2003: PISTON. FAILED. THE PISTON IN NR 4 CYLINDER SEPARATED AT THE PISTON PIN BOSS AREA ALLOWING THE CONNECTING ROD END TO PROTRUDE THROUGH THE ENGINE CASE AND THE COWLING. THE CYLIN - [SDR CA030430004](https://openairdocs.org/sdr/CA030430004), Apr 30, 2003: CYLINDER. CRACKED. (CAN) NR 4 CYLINDER, ON INVESTIGATION DURING LEAK, DOWN TEST NOTED LOW COMPRESSION AND LEAKAGE IN EXHAUST PORT. CYLINDER REMOVED AND CRACK FOUND IN EXHAUST PORT - [SDR 20010228CW003](https://openairdocs.org/sdr/20010228CW003), Feb 1, 2001: CRANKCASE. CRACKED. DURING ANNUAL INSP, OIL LEAK NOTED AT TOP OF CRANKCASE, CLEANING AND RERUN, OIL LEAK RETURNED. FOUND 1.25 IN CRACK EXTENDING FROM TOP CENTER CASE BOLT HOLE AT A - [SDR 99ZZZX1070](https://openairdocs.org/sdr/99ZZZX1070), Feb 1, 1999: BREAKER ASSY. DEFECTIVE. DURING PERFORMANCE OF 100-HOUR INSPECTION, LT POSITION MAGNETO, BENDIX (TCM) PN 10-79020-10, RE-MANUFACTURED BY AIRBORNE ELECTROSYSTEMS, INC., AND INSTALLED AT - [SDR 97ZZZX3988](https://openairdocs.org/sdr/97ZZZX3988), Aug 25, 1997: OIL VALVE. CORRODED. DURING FLIGHT, OIL PRESS WAS INDICATING LOW (10-30 PSI) AND ERRATIC. AFTER LANDING, DURING TAXI, OIL PRESS INDICATION WAS 0-10 PSI. PRESS XMITTER REMOVED AND A - [SDR 97ZZZX2020](https://openairdocs.org/sdr/97ZZZX2020), Apr 1, 1997: CAM ASSY. RIVET FAILED. DURING ACCOMPLISHING SB MSB645, NR 639, AND AD 96-12-07, FOUND MAG SNAP RING CAM ASSY HAD RIVET FAILURE. - [SDR 97ZZZX1313](https://openairdocs.org/sdr/97ZZZX1313), Feb 26, 1997: ENGINE. LOW PRESSURE. AT ANNUAL INSPECTION, ENGINE OIL PRESSURE WAS BELOW SPECIFIED LIMITS. CAUSE UNKNOWN. - [SDR 96ZZZX5803](https://openairdocs.org/sdr/96ZZZX5803), Oct 18, 1996: TUBE. BROKEN. DISASSEMBLING ENG FOR OVERHAUL FOUND THE OIL SUCTION TUBE WAS BROKEN IN 2 PLACES. TUBE WAS BROKE OFF FROM SCREEN AND ONE OF THE ATTACHING ANGLES WAS BROKEN BY B - [SDR AU960230](https://openairdocs.org/sdr/AU960230), Feb 22, 1996: SUPPORT. FAILED. (AUS) PROPELLER SPINNER SUPPORT FAILED - SPINNER BULKHEAD CRACKED - THIS IS THE SECOND SIMILAR OCCURRENCE ON THIS AIRCRAFT (LAST TIMEIN AUGUST 1992) - SUSPECT C - [SDR 95ZZZX3034](https://openairdocs.org/sdr/95ZZZX3034), Jun 7, 1995: ADAPTER ASSY. WORN. DURING CRUISE FLIGHT, THE ENGINE BEGAN TO LOSE OIL PRESSURE. THE PILOT DECLARED AN EMERGENCY AND LANDED IN A FIELD WITH MINIMAL DAMAGE. THE ENGINE HAD BEEN EQUI - [SDR 95ZZZX2379](https://openairdocs.org/sdr/95ZZZX2379), Apr 27, 1995: CRANKSHAFT. CORRODED. REMOVED PROPELLER TO REPLACE CRANKSHAFT SEAL. FOUND CRANKSHAFT FLANGE SEVERELY CORRODED. REMOVED ENGINE FROM SERVICE FOR CRANKSHAFT REPLACEMENT. ENGINE HAD BEEN ## STCs that may be installed (OpenAirDocs) (41) 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 SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC - [STC SE2932SW](https://openairdocs.org/stc/SE2932SW): Install carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive. Alcor LLC. Lists IO-470 Series - [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd - [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 SE25WE](https://openairdocs.org/stc/SE25WE): Installation of two (2) Roto-Master Turbochargers Model 3DT5FF10J2, P/N 600572-00 (formerly Rajay Model 315F10, P/N RJ0080-102). TALCO Aviation - [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp - [STC SE04599CH](https://openairdocs.org/stc/SE04599CH): To allow the use of UL-94 (minimum) grade aviation fuel meeting ASTM D7547. Swift Fuels LLC - [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 SE09217SC](https://openairdocs.org/stc/SE09217SC): Installation of modified fuel injector nozzles. General Aviation Modifications Inc. Lists IO-470 Series - [STC SE09637SC](https://openairdocs.org/stc/SE09637SC): Remove existing rocker arm assemblies and install modify rocker arm assemblies. General Aviation Modifications Inc - [STC SE95WE](https://openairdocs.org/stc/SE95WE): Installation of oil fitting (AN-823-5D) in rocker box cover. Airwolf Filter Corporation - [STC SE325SW](https://openairdocs.org/stc/SE325SW): Full flow oil filter. Superior Flow Company. Lists IO-470 Series - [STC SE26WE](https://openairdocs.org/stc/SE26WE): Piston ring 250000, 250000+2W and250000+10W on Continental E Series piston 534895, O-470 piston 534895, 626992 and 537883 and IO-470 piston534895. Continental Motors, Inc. Lists IO-470 Series - [STC SE34WE](https://openairdocs.org/stc/SE34WE): Installation of Electro-Coatings, Inc., piston rings on Continental pistons. Continental Motors, Inc - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists IO-470 Series - [STC SE994SO](https://openairdocs.org/stc/SE994SO): Installation of fuel line filters into the individual fuel injector lines in accordance with Beryl D Shannon Aviation Specialties, Inc. Installations Instructions BI 2500, approved May 24, 1976, or later FAA approved revision. D'Shannon Products Ltd - [STC SE09846SC](https://openairdocs.org/stc/SE09846SC): Installation of S539800M30 starter adapter springs. Aircraft Specialties Services Inc - [STC SE551GL](https://openairdocs.org/stc/SE551GL): Incorporation of a fuel flow transducer. Shadin Avionics - [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation - [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 - [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 IO-470 Series - [STC SE00577NY](https://openairdocs.org/stc/SE00577NY): Installation of Canadian Aero Mfg. (C.A.M.) Oil Coolers. Canadian Aero Manufacturing. Lists IO-470 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 SE8594SW](https://openairdocs.org/stc/SE8594SW): Installation of roller rocker arm P/N PE 92I intake and PE92E exhaust. Performance Engineering - [STC SE5205NM](https://openairdocs.org/stc/SE5205NM): Installation of an Oilamatic engine filter screen adapter. Oilamatic Inc - [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp - [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-470 Series - [STC SE940GL](https://openairdocs.org/stc/SE940GL): Installation of oil filler tube extension. Rapco, Inc - [STC SE1642SW](https://openairdocs.org/stc/SE1642SW): Modified cylinder assembly G-626820C or G-625859. Gary Aerospace Corp. Lists IO-470 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-470 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-470 Series - [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec - [STC SE12GL](https://openairdocs.org/stc/SE12GL): Installation of oil filler cap. Ray Whyte Electric Products Co - [STC SE16WE](https://openairdocs.org/stc/SE16WE): Bendix S-600 low tension ignition system. Salinas Engine Works. Lists IO-470 Series - [STC SE387SW](https://openairdocs.org/stc/SE387SW): Modification of ring grooves on Continental Motors pistons 539814(3 ring) and 627738 (4 ring). Van Der Horst Corp of America. Lists IO-470 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 - [STC SE73SO](https://openairdocs.org/stc/SE73SO): Continental GIO-470 engine oil sump assembly 628943 and oil pump suction tube assembly 628660. Aircraft Modification Engineering Company. Lists IO-470 Series - [STC SE82SO](https://openairdocs.org/stc/SE82SO): Engine sump reworked to provide15 1/8-quart total oil capacity. Riley Aeronautics Corp. Lists IO-470 Series --- 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.