# Continental IO-470-N - Type: Engine model (FAA registry) - Registry code: 17358 - Manufacturer (registry): CONT MOTOR - Model: IO-470-N - Engine type: Reciprocating - Power: 260 hp - Data sheet: [TCDS 3E1](https://openairdocs.org/tcds/3E1) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 12 registered aircraft - Page: https://openairdocs.org/engine/continental-io-470-n 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 98-17-11](https://openairdocs.org/ad/98-17-11): Crankshafts · Continental Motors A-65-3, A-65-8, A75-8 and 90 more. Effective Oct 19, 1998 - [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 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 72-20-02](https://openairdocs.org/ad/72-20-02): Cylinders · Continental Motors IO-470-D, IO-470-E, IO-470-F and 10 more. Effective Oct 2, 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 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 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 (12) - [N34BV](https://openairdocs.org/aircraft/N34BV): [Dessuit Franklin Jr](https://openairdocs.org/faa-owner/DESSUIT%20FRANKLIN%20JR), [Mckinney, TX](https://openairdocs.org/faa-place/TX/Mckinney), built 1956, S/N CG-152 - [N34CQ](https://openairdocs.org/aircraft/N34CQ): [Rocky Mountain Warbirds LLC](https://openairdocs.org/faa-owner/ROCKY%20MOUNTAIN%20WARBIRDS%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 1958, S/N CG-217 - [N34UA](https://openairdocs.org/aircraft/N34UA): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), S/N D-7241 - [N35UK](https://openairdocs.org/aircraft/N35UK): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1961, S/N D-6795 - [N4534M](https://openairdocs.org/aircraft/N4534M): [Fowler Bruce Jr](https://openairdocs.org/faa-owner/FOWLER%20BRUCE%20JR), [Cedar Park, TX](https://openairdocs.org/faa-place/TX/Cedar%20Park), built 1956, S/N 58-11088 (FM88) - [N463T](https://openairdocs.org/aircraft/N463T): [Check 6 LLC](https://openairdocs.org/faa-owner/CHECK%206%20LLC), [Spearfish, SD](https://openairdocs.org/faa-place/SD/Spearfish), built 1963, S/N D-7083 - [N675V](https://openairdocs.org/aircraft/N675V): [Croft Lloyd B](https://openairdocs.org/faa-owner/CROFT%20LLOYD%20B), [Galveston, TX](https://openairdocs.org/faa-place/TX/Galveston), built 1960, S/N D-6575 - [N748JH](https://openairdocs.org/aircraft/N748JH): [Hefley John S](https://openairdocs.org/faa-owner/HEFLEY%20JOHN%20S), [Jensen Beach, FL](https://openairdocs.org/faa-place/FL/Jensen%20Beach), built 1962, S/N CD 575 - [N9220Q](https://openairdocs.org/aircraft/N9220Q): [Barton Alan E Trustee](https://openairdocs.org/faa-owner/BARTON%20ALAN%20E%20TRUSTEE), [Petaluma, CA](https://openairdocs.org/faa-place/CA/Petaluma), built 1971, S/N CD-1255 - [N951T](https://openairdocs.org/aircraft/N951T): [Hoverter Douglas K](https://openairdocs.org/faa-owner/HOVERTER%20DOUGLAS%20K), [Frederick, CO](https://openairdocs.org/faa-place/CO/Frederick), S/N D-6341 - [N9673Y](https://openairdocs.org/aircraft/N9673Y): [Lakeside, MT](https://openairdocs.org/faa-place/MT/Lakeside), built 1962, S/N D-7094, Sale reported - [N9704R](https://openairdocs.org/aircraft/N9704R): [Prewitt Scott S](https://openairdocs.org/faa-owner/PREWITT%20SCOTT%20S), [King City, CA](https://openairdocs.org/faa-place/CA/King%20City), built 1959, S/N D-6262 ## NTSB investigations (2) 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 CEN25FA366](https://openairdocs.org/ntsb/CEN25FA366), Sep 5, 2025: Beech P35 (N463T), Englewood, CO, destroyed, 2 fatal, investigation ongoing - [NTSB WPR25FA256](https://openairdocs.org/ntsb/WPR25FA256), Aug 14, 2025: Beech M35 (N951T), Des Moines, NM, destroyed, 2 fatal, investigation ongoing ## 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. - [Accident 20250905012099A](https://openairdocs.org/incident/20250905012099A), Sep 5, 2025: Beech P35 (N463T), Englewood, CO, Destroyed, 2 fatal. On Friday September 5th, around 0623 local, the aircraft, a Beechcraft BE35 with 2 pilots, was flying downwind of rwy 17L when it crashed outside a commerical… - [Accident 20250813011779A](https://openairdocs.org/incident/20250813011779A), Aug 13, 2025: Beech M35 (N951T), Des Moines, NM, Destroyed, 2 fatal. On 08/13/2025 a Beechcraft BE35 aircraft departed on a personal part 91 flight from pueblo Colorado headed for uvalde Texas. The flight was night VFR and no… - [Incident 20250424004799I](https://openairdocs.org/incident/20250424004799I), Apr 24, 2025: Beech P35 (N9673Y), Wenatchee, WA, Minor damage. As reported by Douglas county sheriff and discussed with NTSB investigator, pilot was performing touch and go's. after landing, during transition roll from… - [Incident 20240719009779I](https://openairdocs.org/incident/20240719009779I), Jul 19, 2024: Beech 45 (N4534M), Beaver Island, MI, Minor damage. On July 19, 2024 at 1115 local time, a Beechcraft model B-45, [privacy data omitted], registered to an LLC and operated by a private pilot, received minor… - [Incident 20150110002369I](https://openairdocs.org/incident/20150110002369I), Jan 10, 2015: Beech N35 (N675V), Waco, TX, Minor damage. Pilot encountered a decrease in OAT (from 43 degrees f to 28 degrees f)and diverted to Waco to terminate flight due to weather. During approach, aircraft… - [Incident 20120414005399I](https://openairdocs.org/incident/20120414005399I), Apr 14, 2012: Beech M35 (N951T), Erie, CO, Minor damage. On 04/14/2012, at approximately 14:45 MST, N951T, a Beechcraft model M35 bonanza sustained minor damage following a gear-up landing at Erie (keik) airport,… - [Incident 20120328003629I](https://openairdocs.org/incident/20120328003629I), Mar 28, 2012: Beech N35 (N6135N), Loveland, CO, Minor damage. Beech N35 bonanza, N6135N, landed gear up and sustained minor damage. Neither pilot on board suffered any injury. - [Incident 20110530016229I](https://openairdocs.org/incident/20110530016229I), May 30, 2011: Beech N35 (N675V), Wetumpka, AL, Minor damage. This is a duplicate report. See original report filed on 06-02-2011 - [Incident 19900831065359I](https://openairdocs.org/incident/19900831065359I), Aug 31, 1990: Beech M35 (N9704R), St Johns, AZ, Minor damage. Propeller blade separated on takeoff roll. Engine separated from mounts. - [Incident 19780807050469I](https://openairdocs.org/incident/19780807050469I), Aug 7, 1978: Beech G33 (N9220Q), Chesterfield, VA, Minor damage. Pilot failed to extend gear before landing. ## Service difficulty reports (17) As reported by operators and repair stations, by the model named in the report. - [SDR 2026FA0000783](https://openairdocs.org/sdr/2026FA0000783), Sep 23, 2026: SPARK PLUG. SEPARATION. DURING CRUISE FLIGHT, THE AIRCRAFT EXPERIENCED AN IMMEDIATE PARTIAL LOSS OF ENGINE POWER ACCOMPANIED BY SEVERE ENGINE ROUGHNESS. AN EMERGENCY WAS DECLARED, AND - [SDR 2019FA0000248](https://openairdocs.org/sdr/2019FA0000248), Aug 12, 2019: STOP PIN. BACKED OUT. THE FULL RICH STOP PIN ON FUEL INJECTION CONTROL ASSEMBLY (PN 629904-2A11) BACKED COMPLETELY OUT AFFECTING THE MIXTURE WHEN THE MIXTURE CONTROL WAS IN THE FULL - [SDR 2020FA0000038](https://openairdocs.org/sdr/2020FA0000038), Aug 9, 2019: TACHOMETER. GROUNDED. DIGITAL TACHOMETER GROUND OUT BOTH MAGNETOS WHEN RUNNING AIRCRAFT. CONTACTED MANUFACTURER AND GO NO HELP WITH THEIR UNIT. - [SDR 2016FA0000320](https://openairdocs.org/sdr/2016FA0000320), Jul 5, 2016: ENGINE. FAILED. ENGINE FAILURE DURING FLIGHT. ACFT CRASHED INTO THE OCEAN NEAR AIRPORT. NTSB INVESTIGATION ONGOING TO DETERMINE CAUSE OF ENGINE FAILURE. ENGINE SENT TO MFG FOR - [SDR 2015FA0000059](https://openairdocs.org/sdr/2015FA0000059), Oct 27, 2014: PISTON. BROKEN. DURING AN ANNUAL INSPECTION, THE QUICK DRAIN OIL DRAIN VALVE WOULD NOT LOCK OPEN. A BLOCK OF WOOD WAS USED TO WEDGE UNDER THE DRAIN VALVE TO HOLD IT OPEN. AFTER - [SDR 2010FA0000995](https://openairdocs.org/sdr/2010FA0000995), Jun 7, 2010: PISTON. BROKEN. 1.8 HOURS AND ON SECOND FLIGHT AFTER INSTALLATION OF 6 NEW PISTONS PN AEC648029 WITH 6 REWORKED CYLINDER ASSEMBLIES, THE ENG EXPERIENCED A CATASTROPHIC TOTAL EN - [SDR 2010FA0000661](https://openairdocs.org/sdr/2010FA0000661), May 17, 2010: GASKET. FAILED. OIL COOLER GASKET FAILED. - [SDR 2007FA0000483](https://openairdocs.org/sdr/2007FA0000483), May 25, 2007: UNKNOWN. UNKNOWN. LOST ELECTRICAL POWER. - [SDR CA050729001](https://openairdocs.org/sdr/CA050729001), Jul 28, 2005: RIB. CORRODED. (CAN) RT STABILIZER END RIB FOUND TO HAVE INTERGRANULAR CORROSION WHERE IT ATTACHED TO THE FORWARD RIB. CORROSION IS ON THE UPPER INSIDE CORNER OF THE RIB AND O - [SDR CA050729002](https://openairdocs.org/sdr/CA050729002), Jul 28, 2005: RIB. CORRODED. (CAN) LT STABILIZER END RIB FOUND TO HAVE INTERGRANULAR CORROSION WHERE IT ATTACHED TO THE FORWARD RIB. CORROSION IS ON THE UPPER INSIDE CORNER OF THE RIB AND O - [SDR 2003FA0001005](https://openairdocs.org/sdr/2003FA0001005), Sep 5, 2003: ADAPTER. WORN. ENGINE DEVELOPED OIL LEAK, FOUND THIS ADAPTER LEAKING AT THREADS, LOCKING NUT SAFETY WAS INTACT, TORQUE DOPE WAS INTACT. ALL REQUIREMENTS OF AD 96-12-22 WERE ME - [SDR CA000804011](https://openairdocs.org/sdr/CA000804011), Jul 23, 2000: STATOR. BROKEN. (CAN) TWO LEGS OF STATOR WINDING BROKE AT DIODE PLATE. RESULTS NO ALTERNATOR OUTPUT. (X) - [SDR CA000118025](https://openairdocs.org/sdr/CA000118025), Jan 10, 2000: FITTING. CRACKED. (CAN) DURING 100 HR INSPECTION, THE RT TORQUE FITTING WAS FOUND CRACKED AT THE ROD ATTACH POINT. POSSIBLE CAUSE IS THAT THE NOSE GEAR WAS OVER-STEERED AND THE S - [SDR AU990861](https://openairdocs.org/sdr/AU990861), Jul 7, 1999: SPAR. CORRODED. (AUS) LEFT WING SPAR CAP CONTAINED SEVERE INTERGRANULAR CORROSION ON THE VERTICAL FLANGE. - [SDR AU961159](https://openairdocs.org/sdr/AU961159), Aug 8, 1996: SEAT BELT. WRONG PART. (AUS) SEAT BELT HARDWARE AND WEBBING WAS OF AUTOMOTIVE ORIGIN - UNAPPROVED PART - PERSONNEL/MAINTENANCE ERROR - [SDR 95ZZZX6932](https://openairdocs.org/sdr/95ZZZX6932), Sep 27, 1995: BOLT. FAILED. CRANKCASE THROUGH-BOLT WAS TORQUED TO THE MANUFACTURER'S SPECIFICATIONS. THE NEXT DAY, FOUND IT IN TWO PIECES. SUBMITTER STATED THIS IS THE SECOND NEW BOLT TO D - [SDR 95ZZZX5639](https://openairdocs.org/sdr/95ZZZX5639), Aug 21, 1995: THROUGH-BOLT. BROKE. NEW THROUGH-BOLT BROKE AFTER TORQUED TO 67 FEET/POUND. BROKE AT O-RING GROOVE IN CENTER OF BOLT. SUBMITTER SUSPECTS POSSIBLE HYDROGEN EMBRITTLEMENT FROM PLATING ## STCs that may be installed (OpenAirDocs) (47) 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 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 SE96SO](https://openairdocs.org/stc/SE96SO): 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 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 SE00561NY](https://openairdocs.org/stc/SE00561NY): Replacement of Fuel Injection System with Carburetted System. Aerotec Engines Limited - [STC SE09217SC](https://openairdocs.org/stc/SE09217SC): Installation of modified fuel injector nozzles. General Aviation Modifications Inc - [STC SE00114SE](https://openairdocs.org/stc/SE00114SE): Replaces Teledyne-Continental Part Number 646277 lifter bodies. B & B Aviation LLC - [STC SE09637SC](https://openairdocs.org/stc/SE09637SC): Remove existing rocker arm assemblies and install modify rocker arm assemblies. General Aviation Modifications Inc - [STC SE02261CH](https://openairdocs.org/stc/SE02261CH): Increase engine displacement from 470 cubic inches to 520 cubic inches in the Teledyne Continental Motors IO-470-D, -E, -F, -H, -L, -M, -N, -R, -S, -U, -V, -VO engines models with a flat rating of 260 HP. Cygnet Aerospace Corp - [STC SE92WE](https://openairdocs.org/stc/SE92WE): Installation of oil fitting (AN-823-5D) in rocker box cover. Airwolf Filter Corporation - [STC SE2-984](https://openairdocs.org/stc/SE2-984): Modification of Continental Piston Part No. 627738 (IO-470). Continental Motors, Inc. 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 SE5820SW](https://openairdocs.org/stc/SE5820SW): Installation of Airmotive exhaust valve, P/N AEC-637781. Continental Motors, Inc - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc - [STC SE910SW](https://openairdocs.org/stc/SE910SW): The manufacturer of pistons, valve guides, and parts. Continental Motors, Inc - [STC SE94SW](https://openairdocs.org/stc/SE94SW): Modification of Continental IO-470 Pistons P/N 627738, P/N 539814, and P/N 631481 compression ring grooves from present keystone configuration to rectangular configuration. Continental Motors, Inc. Lists IO-470 Series - [STC SE3330NM](https://openairdocs.org/stc/SE3330NM): Continental valve cover gasket. Real Gaskets Tennessee - [STC SE992SO](https://openairdocs.org/stc/SE992SO): Installation of fuel line filters into the individual fuel injector lines in accordance with Beryl D Shannon Aviation Specialties, Inc. Installation Instructions BI 2500, approved May 24, 1976, or later FAA approved revisions. D'Shannon Products Ltd - [STC SE552GL](https://openairdocs.org/stc/SE552GL): Incorporation of a fuel flow transducer. Shadin Avionics - [STC SA02261CH](https://openairdocs.org/stc/SA02261CH): Increase engine displacement from 470 cubic inches to 520 cubic inches. Chuck Ney Enterprises - [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 SE152SO](https://openairdocs.org/stc/SE152SO): Modification of throttle body location. Array Paul S. Lists IO-470 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-470 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 IO-470 Series - [STC SE09319SC](https://openairdocs.org/stc/SE09319SC): Modify oil pan adding a new oil sump drain. Texas Skyways Inc. Lists IO-470 Series - [STC SE00139SE](https://openairdocs.org/stc/SE00139SE): 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 SE3517NM](https://openairdocs.org/stc/SE3517NM): Replacement of the original engine oil screen with an external mounted full flow oil adapter and spin-on filter. Timberman Allen E - [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 SE775NE](https://openairdocs.org/stc/SE775NE): Installation of Auto-Vac-2 auxiliary vacuum system. Raymond Ives - [STC SE2450CE](https://openairdocs.org/stc/SE2450CE): Add leaded and unleaded automotive gasoline, 91 minimum antiknock index, (RON+MON)/2. Petersen Aviation Inc - [STC SE7432SW](https://openairdocs.org/stc/SE7432SW): 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 IO-470 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-470 Series - [STC SE939GL](https://openairdocs.org/stc/SE939GL): 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 SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists IO-470 Series - [STC SE69WE](https://openairdocs.org/stc/SE69WE): BG-341 spark plug as eligible for installation on listed Continental engines. Lewis Leibee - [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 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.