# Continental IO-520-D - Type: Engine model (FAA registry) - Registry code: 17236 - Manufacturer (registry): CONT MOTOR - Model: IO-520-D - Engine type: Reciprocating - Power: 300 hp - Data sheet: [TCDS E5CE](https://openairdocs.org/tcds/E5CE) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 95 registered aircraft - Page: https://openairdocs.org/engine/continental-io-520-d 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 2023-09-09](https://openairdocs.org/ad/2023-09-09): Exhaust Turbine System (Recip) · Aerostar PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P) and 292 more. Effective Jul 17, 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 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 97-26-17](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 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 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 77-05-04](https://openairdocs.org/ad/77-05-04): Crankshaft · Continental Motors IO-470-L, IO-520-D, IO-520-F and 6 more. Effective Mar 11, 1977 - [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 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 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 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 ## 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 (95, first 50) - [N1028F](https://openairdocs.org/aircraft/N1028F): [Lunoe Leif C](https://openairdocs.org/faa-owner/LUNOE%20LEIF%20C), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1975, S/N 18502695 - [N145JK](https://openairdocs.org/aircraft/N145JK): [Arcus Aero LLC](https://openairdocs.org/faa-owner/ARCUS%20AERO%20LLC), [Bridgeport, TX](https://openairdocs.org/faa-place/TX/Bridgeport), built 1965, S/N 18051549 - [N1613M](https://openairdocs.org/aircraft/N1613M): [Mclaughlin Drew V](https://openairdocs.org/faa-owner/MCLAUGHLIN%20DREW%20V), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1970, S/N 18501833 - [N1656C](https://openairdocs.org/aircraft/N1656C): [Anderson Thomas R](https://openairdocs.org/faa-owner/ANDERSON%20THOMAS%20R), [Seattle, WA](https://openairdocs.org/faa-place/WA/Seattle), built 1953, S/N 30356 - [N1748R](https://openairdocs.org/aircraft/N1748R): [Northstar Holdings LLC](https://openairdocs.org/faa-owner/NORTHSTAR%20HOLDINGS%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1980, S/N U20605438 - [N1756R](https://openairdocs.org/aircraft/N1756R): [Montana Rose 185 LLC](https://openairdocs.org/faa-owner/MONTANA%20ROSE%20185%20LLC), [Cornwall, VT](https://openairdocs.org/faa-place/VT/Cornwall), built 1974, S/N 18502476 - [N185BN](https://openairdocs.org/aircraft/N185BN): [Skywag Inc](https://openairdocs.org/faa-owner/SKYWAG%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1966, S/N 1851067 - [N185CC](https://openairdocs.org/aircraft/N185CC): [State Of Colorado](https://openairdocs.org/faa-owner/STATE%20OF%20COLORADO), [Denver, CO](https://openairdocs.org/faa-place/CO/Denver), built 1982, S/N 18504392 - [N185DP](https://openairdocs.org/aircraft/N185DP): [Priebe Orthodontics Pc](https://openairdocs.org/faa-owner/PRIEBE%20ORTHODONTICS%20PC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1977, S/N 18503312 - [N185EJ](https://openairdocs.org/aircraft/N185EJ): built 1980, S/N 18504005 - [N185GL](https://openairdocs.org/aircraft/N185GL): [Lukas Gregory](https://openairdocs.org/faa-owner/LUKAS%20GREGORY), [Portsmouth, NH](https://openairdocs.org/faa-place/NH/Portsmouth), built 1967, S/N 185-1152 - [N185GT](https://openairdocs.org/aircraft/N185GT): [Banker Jeffrey M](https://openairdocs.org/faa-owner/BANKER%20JEFFREY%20M), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1967, S/N 1851266 - [N185KB](https://openairdocs.org/aircraft/N185KB): [Sutton Aircraft Salvage LLC](https://openairdocs.org/faa-owner/SUTTON%20AIRCRAFT%20SALVAGE%20LLC), [Palmer, AK](https://openairdocs.org/faa-place/AK/Palmer), built 1979, S/N 18503698 - [N185KQ](https://openairdocs.org/aircraft/N185KQ): [Leonard Investments Management LLC](https://openairdocs.org/faa-owner/LEONARD%20INVESTMENTS%20MANAGEMENT%20LLC), [Palm Beach, FL](https://openairdocs.org/faa-place/FL/Palm%20Beach), built 1973, S/N 18502113 - [N185MR](https://openairdocs.org/aircraft/N185MR): [Airport Farms Aviation](https://openairdocs.org/faa-owner/AIRPORT%20FARMS%20AVIATION), [Tarkio, MO](https://openairdocs.org/faa-place/MO/Tarkio), built 1978, S/N 18503653 - [N185NY](https://openairdocs.org/aircraft/N185NY): [Stoecklein Christine](https://openairdocs.org/faa-owner/STOECKLEIN%20CHRISTINE), [Stanwood, WA](https://openairdocs.org/faa-place/WA/Stanwood), built 1979, S/N 18503787 - [N185PC](https://openairdocs.org/aircraft/N185PC): [Mooney Michael P](https://openairdocs.org/faa-owner/MOONEY%20MICHAEL%20P), [Camas, WA](https://openairdocs.org/faa-place/WA/Camas), built 1976, S/N 18503003 - [N185PF](https://openairdocs.org/aircraft/N185PF): [Quest Leasing LLC](https://openairdocs.org/faa-owner/QUEST%20LEASING%20LLC), [Eagle River, AK](https://openairdocs.org/faa-place/AK/Eagle%20River), built 1973, S/N 18502247 - [N185R](https://openairdocs.org/aircraft/N185R): [Das Air Inc](https://openairdocs.org/faa-owner/DAS%20AIR%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1976, S/N 18503057 - [N185RE](https://openairdocs.org/aircraft/N185RE): [Metcalf Wesley D](https://openairdocs.org/faa-owner/METCALF%20WESLEY%20D), [Spring, TX](https://openairdocs.org/faa-place/TX/Spring), built 1969, S/N 185-1524 - [N185SV](https://openairdocs.org/aircraft/N185SV): [Hanst David L](https://openairdocs.org/faa-owner/HANST%20DAVID%20L), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1980, S/N 18504019 - [N185TX](https://openairdocs.org/aircraft/N185TX): [Montgomery, TX](https://openairdocs.org/faa-place/TX/Montgomery), built 1974, S/N 18502500, Sale reported - [N185VK](https://openairdocs.org/aircraft/N185VK): [Point Two Mmo Aviation](https://openairdocs.org/faa-owner/POINT%20TWO%20MMO%20AVIATION), [Lake Stevens, WA](https://openairdocs.org/faa-place/WA/Lake%20Stevens), built 1975, S/N 18502803 - [N185WK](https://openairdocs.org/aircraft/N185WK): [Intrepid Air LLC](https://openairdocs.org/faa-owner/INTREPID%20AIR%20LLC), [Palmer, AK](https://openairdocs.org/faa-place/AK/Palmer), built 1970, S/N 185-01832 - [N185XL](https://openairdocs.org/aircraft/N185XL): [Bryant Theodore M](https://openairdocs.org/faa-owner/BRYANT%20THEODORE%20M), [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla), built 1981, S/N 18504211 - [N185XS](https://openairdocs.org/aircraft/N185XS): [Jepsen John S](https://openairdocs.org/faa-owner/JEPSEN%20JOHN%20S), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1977, S/N 18503315 - [N185XV](https://openairdocs.org/aircraft/N185XV): [N185xv LLC](https://openairdocs.org/faa-owner/N185XV%20LLC), [Austin, TX](https://openairdocs.org/faa-place/TX/Austin), S/N 18503778 - [N185Y](https://openairdocs.org/aircraft/N185Y): [Lee Bryan D](https://openairdocs.org/faa-owner/LEE%20BRYAN%20D), [Rexburg, ID](https://openairdocs.org/faa-place/ID/Rexburg), S/N 18502224 - [N185YV](https://openairdocs.org/aircraft/N185YV): [Cul-Aircorp Inc](https://openairdocs.org/faa-owner/CUL-AIRCORP%20INC), [Wellington, FL](https://openairdocs.org/faa-place/FL/Wellington), built 1978, S/N 18503546 - [N186AZ](https://openairdocs.org/aircraft/N186AZ): [Iz Air LLC](https://openairdocs.org/faa-owner/IZ%20AIR%20LLC), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami), built 1976, S/N 18503192 - [N21709](https://openairdocs.org/aircraft/N21709): [N 2 Alaska LLC](https://openairdocs.org/faa-owner/N%202%20ALASKA%20LLC), [Talkeetna, AK](https://openairdocs.org/faa-place/AK/Talkeetna), built 1976, S/N 18503064 - [N23LH](https://openairdocs.org/aircraft/N23LH): [Hill Lawrence E](https://openairdocs.org/faa-owner/HILL%20LAWRENCE%20E), [Marion, MT](https://openairdocs.org/faa-place/MT/Marion), built 1974, S/N 18502433 - [N25SC](https://openairdocs.org/aircraft/N25SC): [Blain Robert John](https://openairdocs.org/faa-owner/BLAIN%20ROBERT%20JOHN), [Billings, MT](https://openairdocs.org/faa-place/MT/Billings), built 1966, S/N 185 1055 - [N306TC](https://openairdocs.org/aircraft/N306TC): [N306tc LLC](https://openairdocs.org/faa-owner/N306TC%20LLC), [Greenwich, CT](https://openairdocs.org/faa-place/CT/Greenwich), built 1976, S/N 18503061 - [N3217U](https://openairdocs.org/aircraft/N3217U): [Welkin Aero Inc](https://openairdocs.org/faa-owner/WELKIN%20AERO%20INC), [Garden Plain, KS](https://openairdocs.org/faa-place/KS/Garden%20Plain), built 1975, S/N 18502738 - [N333DG](https://openairdocs.org/aircraft/N333DG): [Alligood Allen K](https://openairdocs.org/faa-owner/ALLIGOOD%20ALLEN%20K), [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla), built 1976, S/N 18503234 - [N3367R](https://openairdocs.org/aircraft/N3367R): S/N 18502875 - [N345BB](https://openairdocs.org/aircraft/N345BB): [Baas Brian J Trustee](https://openairdocs.org/faa-owner/BAAS%20BRIAN%20J%20TRUSTEE), [Cambridge, MN](https://openairdocs.org/faa-place/MN/Cambridge), built 1977, S/N 18503301 - [N3473W](https://openairdocs.org/aircraft/N3473W): [Gades Gary A](https://openairdocs.org/faa-owner/GADES%20GARY%20A), [Montevideo, MN](https://openairdocs.org/faa-place/MN/Montevideo), built 1980, S/N 18504080 - [N36WY](https://openairdocs.org/aircraft/N36WY): [Flexible Flyer LLC](https://openairdocs.org/faa-owner/FLEXIBLE%20FLYER%20LLC), [Cody, WY](https://openairdocs.org/faa-place/WY/Cody), built 1977, S/N 18503311 - [N36ZN](https://openairdocs.org/aircraft/N36ZN): [Dawkins Christopher R](https://openairdocs.org/faa-owner/DAWKINS%20CHRISTOPHER%20R), [Trinity, NC](https://openairdocs.org/faa-place/NC/Trinity), built 1970, S/N 18501830 - [N377WM](https://openairdocs.org/aircraft/N377WM): [Qualitair LLC Trustee](https://openairdocs.org/faa-owner/QUALITAIR%20LLC%20TRUSTEE), Michelstadt, built 1970, S/N 18260411 - [N406AH](https://openairdocs.org/aircraft/N406AH): [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 1962, S/N 185-0442 - [N406GG](https://openairdocs.org/aircraft/N406GG): [Cedar Creek Corp](https://openairdocs.org/faa-owner/CEDAR%20CREEK%20CORP), [Red Bluff, CA](https://openairdocs.org/faa-place/CA/Red%20Bluff), built 1967, S/N 185-1154 - [N409PK](https://openairdocs.org/aircraft/N409PK): [Sky Cowboy Supply Co LLC](https://openairdocs.org/faa-owner/SKY%20COWBOY%20SUPPLY%20CO%20LLC), [Cape Elizabeth, ME](https://openairdocs.org/faa-place/ME/Cape%20Elizabeth), built 1978, S/N 18503721 - [N414ED](https://openairdocs.org/aircraft/N414ED): [Davis Gabriel L](https://openairdocs.org/faa-owner/DAVIS%20GABRIEL%20L), [Dillingham, AK](https://openairdocs.org/faa-place/AK/Dillingham), built 1971, S/N 18501838 - [N4185P](https://openairdocs.org/aircraft/N4185P): [Flying Woody LLC](https://openairdocs.org/faa-owner/FLYING%20WOODY%20LLC), [Helena, MT](https://openairdocs.org/faa-place/MT/Helena), built 1970, S/N 185-01651 - [N418PC](https://openairdocs.org/aircraft/N418PC): [Hajdu Paul R](https://openairdocs.org/faa-owner/HAJDU%20PAUL%20R), [Valley Center, KS](https://openairdocs.org/faa-place/KS/Valley%20Center), built 1971, S/N 185-01843 - [N4211C](https://openairdocs.org/aircraft/N4211C): [State Of Colorado Department Of Natural Resources](https://openairdocs.org/faa-owner/STATE%20OF%20COLORADO%20DEPARTMENT%20OF%20NATURAL%20RESOURCES), [Denver, CO](https://openairdocs.org/faa-place/CO/Denver), built 1979, S/N 18503823 - [N42609](https://openairdocs.org/aircraft/N42609): [Jcr Ag LLC](https://openairdocs.org/faa-owner/JCR%20AG%20LLC), [Frederick, OK](https://openairdocs.org/faa-place/OK/Frederick), built 1980, S/N 18803666 All 95: https://openairdocs.org/engine/continental-io-520-d/aircraft.md ## NTSB investigations (49) 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 ERA26FA115](https://openairdocs.org/ntsb/ERA26FA115), Feb 15, 2026: Cessna A185 (N7574N), Everglades City, FL, substantial damage, 1 fatal, investigation ongoing - [NTSB WPR25LA014](https://openairdocs.org/ntsb/WPR25LA014), Oct 12, 2024: Cessna A185E (N185WK), Seattle, WA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing roll with a crosswind. - [NTSB ERA23LA098](https://openairdocs.org/ntsb/ERA23LA098), Dec 28, 2022: Cessna 182P (N8217M), Ethel, WV, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion. - [NTSB WPR23LA054](https://openairdocs.org/ntsb/WPR23LA054), Dec 4, 2022: Cessna A185F (N926HM), Fergus Falls, MN, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the takeoff roll, resulting in a runway excursion. - [NTSB ERA23LA034](https://openairdocs.org/ntsb/ERA23LA034), Oct 22, 2022: Cessna A185E (N36ZN), York, PA, substantial damage. Probable cause: Oil starvation of the number 1 connecting rod bearings, which resulted in a total loss of engine power. - [NTSB WPR22LA209](https://openairdocs.org/ntsb/WPR22LA209), Jun 9, 2022: Cessna A185F (N94078), Sunriver, OR, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane during takeoff, which resulted in a collision with terrain. - [NTSB CEN21LA406](https://openairdocs.org/ntsb/CEN21LA406), Sep 6, 2021: Cessna A185F (N7574N), Kingsley, IA, substantial damage. Probable cause: The total loss of engine power due to fuel exhaustion as a result of an unsecured fuel bladder, which reduced the fuel capacity of the affected tank. - [NTSB ANC21LA045](https://openairdocs.org/ntsb/ANC21LA045), Jun 6, 2021: Cessna A185F (N85DT), Chandalar Lake, AK, substantial damage. Probable cause: The pilot’s over application of the brakes, which resulted in a nose over. - [NTSB ANC21LA019](https://openairdocs.org/ntsb/ANC21LA019), Mar 1, 2021: Cessna U206G (N1748R), McGrath, AK, substantial damage. Probable cause: The pilot’s selection of an unsuitable landing surface. - [NTSB ANC21LA002](https://openairdocs.org/ntsb/ANC21LA002), Oct 20, 2020: Cessna 185 (N850WB), Anchorage, AK, substantial damage. Probable cause: The pilot receiving instruction’s failure to maintain directional control during the landing roll, which resulted in a runway excursion onto soft terrain. Contributing to the accident was the flight… - [NTSB CEN20CA320](https://openairdocs.org/ntsb/CEN20CA320), Jul 31, 2020: Cessna A188 (N90834), Memphis, MO, substantial damage. Probable cause: The pilot did not remove the rudder gust lock during the preflight inspection, which resulted in a forced landing and collision with a tree. - [NTSB ANC18LA066](https://openairdocs.org/ntsb/ANC18LA066), Aug 22, 2018: Cessna A185F (N8041R), Kaktovik, AK, substantial damage. Probable cause: A loss of engine power due to fuel starvation during a steep turn with a low fuel state. - [NTSB ANC18LA059](https://openairdocs.org/ntsb/ANC18LA059), Aug 1, 2018: Cessna A185F (N185KB), White Mountain, AK, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal… - [NTSB GAA17CA013](https://openairdocs.org/ntsb/GAA17CA013), Oct 7, 2016: Cessna A185 (N4924E), San Antonio, TX, substantial damage. Probable cause: The pilot's failure to recognize the tailwind condition and maintain directional control during the landing roll, which resulted in a runway excursion. - [NTSB ERA15LA372](https://openairdocs.org/ntsb/ERA15LA372), Aug 31, 2015: Cessna A185F (N186AZ), Miami, FL, substantial damage. Probable cause: The pilot’s improper landing flare, which resulted in a hard landing and separation of the left main landing gear wheel from its strut. - [NTSB ANC13CA028](https://openairdocs.org/ntsb/ANC13CA028), Mar 5, 2013: Cessna 185B (N2550Z), Flat, AK, substantial damage. Probable cause: The pilot's inadequate compensation for gusting, variable wind conditions during initial climb after takeoff. - [NTSB ERA12CA116](https://openairdocs.org/ntsb/ERA12CA116), Oct 8, 2011: Cessna 188 (N5424E), Starkville, MS, substantial damage. Probable cause: The pilot did not maintain directional control of the airplane during landing, which resulted in a runway excursion. - [NTSB WPR11CA024](https://openairdocs.org/ntsb/WPR11CA024), Oct 22, 2010: Cessna 185 (N5011X), Fort Thomas, AZ, substantial damage. Probable cause: The airplane's encounter with a dust devil during landing rollout, which resulted in the pilot not being able to maintain directional control. - [NTSB DEN07CA139](https://openairdocs.org/ntsb/DEN07CA139), Aug 19, 2007: Cessna A185F (N185MR), Lake City, CO, substantial damage. Probable cause: The pilot's improper preflight planning, his inability to attain short field takeoff performance, and his intentional maneuvering of the airplane into bushes and a fence during the aborted takeoff.… - [NTSB NYC06CA065](https://openairdocs.org/ntsb/NYC06CA065), Jan 29, 2006: Cessna A185F (N7574N), Pembroke, MA, substantial damage. Probable cause: The pilot's failure to maintain control during the takeoff roll, which resulted in a ground loop and subsequent impact with trees. A factor was the soft runway as reported by the pilot. - [NTSB ANC05TA106](https://openairdocs.org/ntsb/ANC05TA106), Jul 6, 2005: Cessna 185 (N8360Q), Delta Junction, AK, substantial damage. Probable cause: The pilot's misjudged distance/altitude during the landing touchdown and subsequent undershoot, and his failure to maintain directional control of the airplane during the landing roll, which resulted… - [NTSB ANC03LA031](https://openairdocs.org/ntsb/ANC03LA031), Mar 9, 2003: Cessna 185 (N1613M), Galena, AK, substantial damage. Probable cause: The failure of the airplane to climb after takeoff which resulted in an in-flight collision with terrain during an aborted landing attempt. - [NTSB FTW02LA263](https://openairdocs.org/ntsb/FTW02LA263), Sep 17, 2002: Cessna 188A (N9943G), Vincent, TX, substantial damage. Probable cause: The loss of engine power for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB ANC02LA050](https://openairdocs.org/ntsb/ANC02LA050), Jun 15, 2002: Cessna 185F (N333DG), Talkeetna, AK, substantial damage. Probable cause: A fracture failure of the lower end of the spring steel landing gear strut. Factors contributing to the accident were the manufacturer's and the FAA's insufficient standards/requirements for… - [NTSB ANC02TA045](https://openairdocs.org/ntsb/ANC02TA045), Jun 8, 2002: Cessna 185 (N749), Kaktovik, AK, substantial damage. Probable cause: The pilot's inadequate evaluation of the weather conditions during landing at a remote lake, resulting in a downwind landing. Factors contributing to the accident were the presence of a tailwind, and… - [NTSB CHI00LA035](https://openairdocs.org/ntsb/CHI00LA035), Dec 2, 1999: Cessna A185F (N1756R), Raymond, NE, substantial damage. Probable cause: the pilot's lack of recent experience in the type of aircraft and type of operation, and the pilot not maintaining directional control. A finding was the glassy condition of the water. - [NTSB SEA99LA156](https://openairdocs.org/ntsb/SEA99LA156), Sep 4, 1999: Cessna 182M (N71685), Sandpoint, ID, substantial damage. Probable cause: The pilot's improper flare. Factors include a runway that sloped uphill, and the pilot's failure to familiarize himself with the destination airstrip prior to departure. - [NTSB DEN99TA099](https://openairdocs.org/ntsb/DEN99TA099), Jun 10, 1999: Cessna A185F (N4211C), Farmington, NM, substantial damage. Probable cause: The pilot's inadequate visual lookout and failure to see and avoid a ground obstruction. Factors were the throttle linkage becoming disconnected due to an inadequate annual inspection by maintenance… - [NTSB LAX98LA299](https://openairdocs.org/ntsb/LAX98LA299), Sep 20, 1998: Cessna 185E (N1613M), Mesa, AZ, substantial damage. Probable cause: The failure of the wheel assembly retention nuts and subsequent wheel separation. - [NTSB ANC98LA134](https://openairdocs.org/ntsb/ANC98LA134), Sep 1, 1998: Cessna 185E (N333DG), Talkeetna, AK, substantial damage. Probable cause: The pilot's failure to maintain directional control resulting in a inadvertent ground loop. A contributing factor was the induced pressure on the pilot by a sick passenger. - [NTSB CHI96LA024](https://openairdocs.org/ntsb/CHI96LA024), Oct 24, 1995: Cessna A185E (N1613M), Liberal, KS, substantial damage. Probable cause: the pilot's inadequate compensation for wind conditions, which resulted in a loss of directional control and an inadvertent ground swerve. - [NTSB SEA94LA224](https://openairdocs.org/ntsb/SEA94LA224), Aug 27, 1994: Cessna 206 (N859A), Bliss, ID, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL. FACTORS INCLUDE SUNGLARE FROM THE SETTING SUN, AND THE SOFT TERRAIN ALONG THE SIDE THE RUNWAY. - [NTSB ANC93LA079](https://openairdocs.org/ntsb/ANC93LA079), May 31, 1993: Cessna A185F (N333DG), Kahiltna Glacie, AK, substantial damage. Probable cause: THE PILOT-IN-COMMAND NOT MAINTAINING DIRECTIONAL CONTROL. A FACTOR IS THE ROUGH CONDITION OF THE GLACIER AIRSTRIP. - [NTSB ANC90LA145](https://openairdocs.org/ntsb/ANC90LA145), Aug 15, 1990: Cessna 185B (N2550Z), Mcgrath, AK, substantial damage. Probable cause: FAILURE OF THE LEFT INSIDE WHEEL BEARING, FOR UNDETERMINED REASONS. - [NTSB ANC90LA006](https://openairdocs.org/ntsb/ANC90LA006), Oct 15, 1989: Cessna 185 (N70022), Tuluksak, AK, substantial damage. Probable cause: MOUNTING SHAFT (AIRBOX THROUGH-SHAFT) FOR THE THROTTLE AND MIXTURE CONTROLS HAD BECOME LOOSE AND BACKED OUT, WHICH RESULTED IN LOSS OF ENGINE POWER. FACTORS RELATED TO THE ACCIDENT WERE: DARKNESS AND… - [NTSB ANC86LA128](https://openairdocs.org/ntsb/ANC86LA128), Aug 18, 1986: Cessna 185-F (N3367R), Caribou Lake, AK, substantial damage - [NTSB ANC86LA117](https://openairdocs.org/ntsb/ANC86LA117), Jul 30, 1986: Cessna 185E (N1613M), Tetlin, AK, substantial damage - [NTSB MKC85LA219](https://openairdocs.org/ntsb/MKC85LA219), Sep 8, 1985: Cessna A185F (N1756R), Lincoln, NE, substantial damage - [NTSB ANC84LA001](https://openairdocs.org/ntsb/ANC84LA001), Jan 6, 1983: Cessna 185 (N4924E), Togiak, AK, substantial damage - [NTSB FTW78DDG37](https://openairdocs.org/ntsb/FTW78DDG37), May 26, 1978: Cessna 188 (N731QP), Gould, AR, destroyed - [NTSB SEA78FTA03](https://openairdocs.org/ntsb/SEA78FTA03), Nov 4, 1977: Cessna 185 (N21709), Bay Horse, MT, substantial damage - [NTSB IAD77FLQ23](https://openairdocs.org/ntsb/IAD77FLQ23), Sep 12, 1977: Cessna A188B (N53315), Hopkinsville, KY, substantial damage - [NTSB ANC76AA140](https://openairdocs.org/ntsb/ANC76AA140), Sep 24, 1976: Cessna A185F (N3367R), Seldovia, AK, substantial damage - [NTSB ANC76DAG91](https://openairdocs.org/ntsb/ANC76DAG91), Jan 26, 1976: Cessna 185 (N2550Z), Nondalton, AK, substantial damage - [NTSB ANC75AA027](https://openairdocs.org/ntsb/ANC75AA027), Sep 22, 1974: Cessna 185 (N70026), Fairbanks, AK, destroyed, 2 fatal - [NTSB ANC73DAG01](https://openairdocs.org/ntsb/ANC73DAG01), Jul 2, 1972: Cessna 185B (N2550Z), Iliamna, AK, substantial damage - [NTSB ANC72AA027](https://openairdocs.org/ntsb/ANC72AA027), Nov 26, 1971: Cessna 185 (N70022), Skwentna, AK, substantial damage - [NTSB CHI70DGD16](https://openairdocs.org/ntsb/CHI70DGD16), Feb 7, 1970: Cessna 182 (N71685), Old Fort, OH, substantial damage - [NTSB OAK67F0210](https://openairdocs.org/ntsb/OAK67F0210), Jan 15, 1967: Cessna 180 (N1656C), S.Lake Taho, CA, substantial damage ## FAA accident and incident reports (62, newest 50) 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 20260215002779A](https://openairdocs.org/incident/20260215002779A), Feb 15, 2026: Cessna A185F (N7574N), Naples, FL, Minor damage, 1 fatal. On February 15, 2026, at about 1116 hours, a 1981 Cessna (floats) A185F, [privacy data omitted] departed marco island executive airport to the south and at… - [Accident 20241012018899A](https://openairdocs.org/incident/20241012018899A), Oct 12, 2024: Cessna A185E (N185WK), Seattle, WA, Substantial damage. N185WK was on approach rwy 14L. On touchdown, the aircraft bounced.PIC was allowing the passenger to land and passenger says just as he was going to attempt to… - [Accident 20221228018799A](https://openairdocs.org/incident/20221228018799A), Dec 28, 2022: Cessna 182P (N8217M), Logan, WV, Substantial damage. 12/28/2022 - [privacy data omitted] departed runway at Logan County Airport (6L4) shortly after touchdown. Off runway excursion was approximately 600 feet with… - [Accident 20221204018269A](https://openairdocs.org/incident/20221204018269A), Dec 4, 2022: Cessna A185F (N926HM), Fergus Falls, MN, Substantial damage. Pilot in command (PIC) attempted a take-off from runway 31 at Fergus Falls municipal airport in an aircraft he had just purchased. (PIC declined an… - [Accident 20221022016769A](https://openairdocs.org/incident/20221022016769A), Oct 22, 2022: Cessna A185E (N36ZN), Thomasville, PA, Substantial damage. Aircraft engine lost oil pressure causing catastrophic engine failure. Pilot located nearest airport (thv) and attempted an emergency landing. Aircraft… - [Accident 20220608010539A](https://openairdocs.org/incident/20220608010539A), Jun 8, 2022: Cessna A185F (N94078), Substantial damage. Departed runway 36, at 45KTS tail wheel came off the ground and at that time the aircraft veered 45 degrees to the left and departed the runway. Wind was… - [Accident 20210906015439A](https://openairdocs.org/incident/20210906015439A), Sep 6, 2021: Cessna A185F (N7574N), Kingsley, IA, Substantial damage. Aircraft engine lost power landed in corn field and flipped over. - [Accident 20210605006779A](https://openairdocs.org/incident/20210605006779A), Jun 5, 2021: Cessna A185F (N85DT), Coldfoot, AK, Substantial damage. Pilot stated he arrived at Chandalar Lake after departing fairbanks. He checked runway conditions and the direction of the windsock. He checked airspeed vs.… - [Accident 20210228000179A](https://openairdocs.org/incident/20210228000179A), Feb 28, 2021: Cessna U206G (N1748R), Tatitna, AK, Substantial damage. 3/3/2021 Late report. On 2/28/2021 at approx. 1556 AKST, while landing on a snow packed runway at Tatitna Alaska, N1748R broke through a snow bank, the nose… - [Accident 20201020014589A](https://openairdocs.org/incident/20201020014589A), Oct 20, 2020: Cessna 185E (N850WB), Chugiak, AK, Substantial damage. On October 20, 2020 at 1240PM a Cessna 185 N850WB departed runway gravel runway 32 lake hood, anchorage Alaska for the purposes of providing currency flight… - [Accident 20200731011859A](https://openairdocs.org/incident/20200731011859A), Jul 31, 2020: Cessna A188B (N90834), Memphis, MO, Substantial damage. Received notification of an aircraft accident involving a Cessna A188B with a registration of N90834. During take-off roll, pilot detected a left drift and… - [Accident 20180821011929A](https://openairdocs.org/incident/20180821011929A), Aug 21, 2018: Cessna A185F (N8041R), Substantial damage. -Initial departure the day of the accident was from 78AA in north pole, AK. After discussion with fss and anchorage center the night before regarding a local… - [Accident 20180731018429A](https://openairdocs.org/incident/20180731018429A), Jul 31, 2018: Cessna A185F (N185KB), Nome, AK, Substantial damage. Aircraft was flying in cruise between the city of council and Nome Alaska at approximately 500-600 ft with 1 adult and 2 children onboard. Approximatly 15… - [Accident 20161007016559A](https://openairdocs.org/incident/20161007016559A), Oct 7, 2016: Cessna A185F (N4924E), San Antonio, TX, Substantial damage. ^Stephen ratcliff^ flew his Cessna A-185-F from conroe to San Antonio. On his way to the airport, a frontal passage was reported by San Antonio international… - [Incident 20160908016999I](https://openairdocs.org/incident/20160908016999I), Sep 8, 2016: Cessna A-185F (N73EK), Port Townsend, WA, No damage. Pilot observed engine surging shortly after takeoff which continued during initial climbout. Subsequently the engine stopped completely. Pilot then prepared… - [Accident 20150831015789A](https://openairdocs.org/incident/20150831015789A), Aug 31, 2015: Cessna A185F (N186AZ), Miami, FL, Substantial damage. After landing during the landing roll the left main gear wheel collapsed resulting in damage to the left wing and left side of fuselage. - [Accident 20130305003269A](https://openairdocs.org/incident/20130305003269A), Mar 5, 2013: Cessna 185B (N2550Z), Iditarod, AK, Substantial damage. The airman over flew the Airstrip prior to landing, stayed on the ground for at least an hour and evaluated the Airstrip conditions and squirrely winds. Prior… - [Incident 20120214003889I](https://openairdocs.org/incident/20120214003889I), Feb 14, 2012: Cessna A185F (N186AZ), Miami, FL, Substantial damage. Pilot states that after landing at the Tamiami airport (tmb), he was taxiing on taxiway h heading toward the general aviation ramp. He made a left turn to exit… - [Accident 20111008028299A](https://openairdocs.org/incident/20111008028299A), Oct 8, 2011: Cessna 188 (N5424E), Starkville, MS, Substantial damage. During landing the aircraft experienced an uncommanded turn/swerve to the left which the pilot could not arrest. The aircraft exited the left side of runway 18… - [Accident 20101022050629A](https://openairdocs.org/incident/20101022050629A), Oct 22, 2010: Cessna 185 (N5011X), Fort Thomas, AZ, Substantial damage. N5011X departed 5AZ9, a private airstrip, to take photos of the same airfield. No weather services were provided at this airfield. The wind was observed by the… - [Accident 20090728048129A](https://openairdocs.org/incident/20090728048129A), Jul 28, 2009: Cessna A185F (N749), Fairbanks, AK, Substantial damage. Pilot stated after takeoff, he noticed a rattling sound coming from the landing gear. The pilot opted to return to the airport and made an uneventful landing.… - [Incident 20080801841379I](https://openairdocs.org/incident/20080801841379I), Aug 1, 2008: Cessna 182N (N8967G), Pasco, WA, Minor damage. (-23) During flight, while level at 12,000 ft, the aircraft experienced a rough running engine for a short period of time. The pilot decided to descend, and at… - [Incident 20080604838519I](https://openairdocs.org/incident/20080604838519I), Jun 4, 2008: Cessna A188B (N90834), Mexico, MO, Minor damage. (-23) On June 4, 2008, [privacy data omitted] struck a powerline while conducting crop-dusting near Mexico, MO. The powerline broke and fell to the ground. No… - [Accident 20070819018929A](https://openairdocs.org/incident/20070819018929A), Aug 19, 2007: Cessna A185F (N185MR), Lake City, CO, Substantial damage. (-23) Pilot attempted departure from rnwy 02. The airfield is 9300 feet MSL. Pilot reported that the aircraft never left the ground as "it did not seem to want… - [Incident 20060605010699I](https://openairdocs.org/incident/20060605010699I), Jun 5, 2006: Cessna A185F (N749), Bettles, AK, Minor damage. (-23) Pilot broke through ice on off field landing/taxi, up on nose damaged prop. [privacy data omitted] - [Accident 20060129001099A](https://openairdocs.org/incident/20060129001099A), Jan 29, 2006: Cessna A185F (N7574N), Pembroke, MA, Substantial damage. (-23) On January 29, 2006, inspector [privacy data omitted] and I conducted an accident investigation located at a private strip in Pembroke, MA. The pilot… - [Accident 20050706017469A](https://openairdocs.org/incident/20050706017469A), Jul 6, 2005: Cessna A185F (N8360Q), Delta Junction, AK, Minor damage. (-23) [privacy data omitted] the pilot [privacy data omitted]was operating into a known unimproved landing area, stated he encountered wind shear on short… - [Incident 20030325005179I](https://openairdocs.org/incident/20030325005179I), Mar 25, 2003: Cessna 188CESSNA (N42609), Walters, OK, Minor damage. (-23) Pilot stated at time of rotation to the south, a north wind gust caused the aircraft to settle back down to the ground. At this point the wheels were in… - [Accident 20030309002279A](https://openairdocs.org/incident/20030309002279A), Mar 9, 2003: Cessna A185E (N1613M), Galena, AK, Substantial damage. (.19) On March 9, 2003, about 0930 Alaska daylight time, a wheel/ski-equipped Cessna 185 airplane, N1613M, sustained substantial damage when it collided with… - [Accident 20020917026699A](https://openairdocs.org/incident/20020917026699A), Sep 17, 2002: Cessna A188A (N9943G), Vincent, TX, Substantial damage. (-23) On September 17, 2002, at 1800 CDT, a Cessna 188A, single engine agricultural airplane, N9943G, sustained substantial damage during a forced landing… - [Accident 20020615017409A](https://openairdocs.org/incident/20020615017409A), Jun 15, 2002: Cessna A185F (N333DG), Talkeetna, AK, No damage. (-23) On June 15, 2002, about 0015 adt, the wheel-equipped Cessna A185F aircraft, operating on a FAR 135 on-demand charter flight, sustained substantial damage… - [Accident 20020607010749A](https://openairdocs.org/incident/20020607010749A), Jun 7, 2002: Cessna A185F (N749), Barter Island, AK, No damage. (.19) On June 7, 2002, about 1815 Alaska daylight time, a wheel/ski-equipped Cessna 185 airplane, N749, sustained substantial damage during the landing roll on… - [Accident 19991202043999A](https://openairdocs.org/incident/19991202043999A), Dec 2, 1999: Cessna A185F (N1756R), Malcolm, NE, No damage. (-23)No narrative - [Accident 19990904047089A](https://openairdocs.org/incident/19990904047089A), Sep 4, 1999: Cessna 182M (N71685), Sandpoint, ID, Substantial damage. (.4)The pilot was flying into a private strip that he had not familiarized himself with. Although he was not aware of it, the runway he was landing on sloped… - [Accident 19980919025419A](https://openairdocs.org/incident/19980919025419A), Sep 19, 1998: Cessna A185E (N1613M), Mesa, AZ, Substantial damage. (.19)On September 19, 1998, at 1736 hours mountain standard time, a Cessna 185E, N1613M, veered off the runway on landing at the Falcon Field Airport, Mesa,… - [Accident 19980831029939A](https://openairdocs.org/incident/19980831029939A), Aug 31, 1998: Cessna A185F (N333DG), Talkeetna, AK, Substantial damage. (.19)On August 31, 1998, about 1750 Alaska daylight time, a wheel equipped Cessna 185E airplane, N333DG, sustained substantial damage while landing at the… - [Incident 19960518024179I](https://openairdocs.org/incident/19960518024179I), May 18, 1996: Cessna A185F (N7574N), Denver, CO, Minor damage. Narrative: on 18 may 1996, on take-off runway 35R at approx. 40 KTS a push to the left was noticed. Rt. Rudder, right brake and rt. Aileron was applied. The… - [Accident 19951024039219A](https://openairdocs.org/incident/19951024039219A), Oct 24, 1995: Cessna A185E (N1613M), Liberal, KS, Substantial damage. Left main landing gear axle broke off during taxi to ramp in high wind conditions. 120 foot skid marks on runway. - [Incident 19950617046799I](https://openairdocs.org/incident/19950617046799I), Jun 17, 1995: Cessna 172P (N54007), Buckeye, AZ. Narrative:on June 17, 1995, at approximately 1320 MST, a private pilot,(identity expunged), pilot in command of N54007, a Cessna 172P, while enroute on a… - [Accident 19940826024049A](https://openairdocs.org/incident/19940826024049A), Aug 26, 1994: Cessna U206F (N859A), Bliss, ID, Substantial damage. Landing with setting sun in eyes on narrow strip. Tried go around. Veered off runway and nosed over. - [Accident 19930531019829A](https://openairdocs.org/incident/19930531019829A), May 31, 1993: Cessna A185F (N333DG), Kahiltna Glacie, AK, Substantial damage. Right wing bent upward by contact with glacier on takeoff roll. Conflicting statements. Ground loop or gear failure - [Incident 19930430011459I](https://openairdocs.org/incident/19930430011459I), Apr 30, 1993: Cessna A185F (N21709), Homer, AK, Minor damage. Pilot landed on beach near his cabin. Aircraft nosed up while taxiing to cabin due to sand. - [Incident 19910315009579I](https://openairdocs.org/incident/19910315009579I), Mar 15, 1991: Cessna 414A (N25SC), Cleveland, OH, Minor damage. Windshield shattered while preparting for takeoff. Suspect damage was result of unknown previous damage to sheild. - [Accident 19900814035759A](https://openairdocs.org/incident/19900814035759A), Aug 14, 1990: Cessna 185B (N2550Z), Mcgrath, AK, Substantial damage. Left wheel locked up on landing. Caused a ground loop. Wheel bearing fractured. Wheels installed by pilot. - [Incident 19900804040619I](https://openairdocs.org/incident/19900804040619I), Aug 4, 1990: Cessna 414A (N25SC), Buffalo, NY, Minor damage. Nose gear collapsed while on the takeoff roll. - [Incident 19891020062489I](https://openairdocs.org/incident/19891020062489I), Oct 20, 1989: Cessna 414A (N25SC), Edinburg, OH. Altimeter malfunctioned due to frozen moisture in pitot static system. Deviated from assigned altitude. - [Accident 19891014040319A](https://openairdocs.org/incident/19891014040319A), Oct 14, 1989: Cessna A185E (N70022), Tuluksak, AK, Substantial damage. Lost power near airport but landed short. Shaft through airbox backed out due loss of roll pin. Lost mixture throttle - [Incident 19870623041979I](https://openairdocs.org/incident/19870623041979I), Jun 23, 1987: Cessna A185F (N21709), Bethel, AK, Minor damage. Engine was cutting out on takeoff. Returned for a crosswind landing. Right main wheel hit the runway damaging axle. - [Accident 19860818043969A](https://openairdocs.org/incident/19860818043969A), Aug 18, 1986: Cessna A185F (N3367R), Caribou Lake, AK, Substantial damage. Aircraft settled after water takeoff. Contacted wet grass and flipped over. Did not use full length of lake. - [Accident 19860730036589A](https://openairdocs.org/incident/19860730036589A), Jul 30, 1986: Cessna A185E (N1613M), Tetlin, AK, Substantial damage. Aircraft bounced after hard landing. Landed hard a second time. Left runway and nosed over. Strong gusty crosswinds All 62: https://openairdocs.org/engine/continental-io-520-d/incidents.md ## Service difficulty reports (283, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2024FA0000749](https://openairdocs.org/sdr/2024FA0000749), Oct 3, 2024: BRACKET. BROKEN. MOUNTED IN THE RT FRONT POSITION, FOUND BROKEN DURING OIL CHANGE. - [SDR 2016FA0000644](https://openairdocs.org/sdr/2016FA0000644), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTERS WHICH CONTACT THE CAMSHAFT IS SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000645](https://openairdocs.org/sdr/2016FA0000645), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000647](https://openairdocs.org/sdr/2016FA0000647), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000649](https://openairdocs.org/sdr/2016FA0000649), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000650](https://openairdocs.org/sdr/2016FA0000650), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000651](https://openairdocs.org/sdr/2016FA0000651), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000652](https://openairdocs.org/sdr/2016FA0000652), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000653](https://openairdocs.org/sdr/2016FA0000653), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000654](https://openairdocs.org/sdr/2016FA0000654), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS. - [SDR 2016FA0000643](https://openairdocs.org/sdr/2016FA0000643), Dec 7, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTERS, WHICH CONTACT THE CAMSHAFT HAVE SPALLED AND CORRODED. THE LIFTERS WERE REPLACED. - [SDR 2016FA0000585](https://openairdocs.org/sdr/2016FA0000585), Nov 30, 2016: LIFTER. SPALLED. THE SURFACE OF THE LIFTERS WHICH CONTACT THE CAMSHAFT HAVE BEGUN TO SPALL AND PIT. THERE IS ONLY 268.2 HOURS SINCE THE ENGINE WAS REPAIRED AND THE LIFTERS WERE - [SDR CA160105006](https://openairdocs.org/sdr/CA160105006), Dec 22, 2015: YOKE. CORRODED. (CAN) DURING VISUAL INSPECTION OF CONTROL YOKE ASSEMBLY, PN 0760030-1, HOLE NOTED IN HORIZONTAL STEEL TUBE ON LT SIDE OF CONTROL YOKE WELDED ASSEMBLY, PN 071185 - [SDR CA151214012](https://openairdocs.org/sdr/CA151214012), Dec 11, 2015: NUT. SPLIT. (CAN) DURING A SCHEDULED INSPECTION, THE NR 6 CYLINDER FORWARD UPPER THROUGH STUD NUT WAS FOUND SPLIT. THE NUT WAS REPLACED WITH A NEW NUT, PN SA652541, BN 1438 - [SDR 2015FA0000605](https://openairdocs.org/sdr/2015FA0000605), Oct 16, 2015: BUSHING. FAILED. AIRCRAFT CAME IN FOR A 50 HR INSPECTION. WHEN ENGINE OIL SCREEN WAS PULLED, IT WAS FOUND TO HAVE A LARGE AMOUNT OF METAL IN IT. UPON INVESTIGATION IT WAS FOUND - [SDR 2015FA0000599](https://openairdocs.org/sdr/2015FA0000599), Oct 6, 2015: LIFTER. SPALLED. UNDER NORMAL OPERATIONS THE ENGINE DEVELOPED ALMOST ALL SPALLED VALVE LIFTERS AND CAM TO THE DEGREE NEEDING REPLACEMENT OF ALL LIFTERS AND THE CAM. THIS IS THE - [SDR 2015FA0000600](https://openairdocs.org/sdr/2015FA0000600), Oct 6, 2015: LIFTER. SPALLED. UNDER NORMAL OPERATIONS THE ENGINE DEVELOPED ALMOST ALL SPALLED VALVE LIFTERS AND CAM TO THE DEGREE NEEDING REPLACEMENT OF ALL LIFTERS AND THE CAM. TIME SINCE R - [SDR 2015FA0000601](https://openairdocs.org/sdr/2015FA0000601), Oct 6, 2015: LIFTER. SPALLED. UNDER NORMAL OPERATIONS THE ENGINE DEVELOPED ALMOST ALL SPALLED VALVE LIFTERS AND CAM TO THE DEGREE NEEDING REPLACEMENT OF ALL LIFTERS AND THE CAM. TIME SINCE R - [SDR CA151007015](https://openairdocs.org/sdr/CA151007015), Oct 2, 2015: SHROUD. BROKEN. (CAN) PILOTS NOTED BANGING NOISE COMING FROM ENGINE AT LOW IDLE. ENGINE SHUTDOWN, COWLING WAS REMOVED. HEAT MUFFLER SHROUD WAS FOUND BROKEN AND BANGING AGAINST - [SDR CA150827002](https://openairdocs.org/sdr/CA150827002), Aug 19, 2015: SPRING. FAILED. (CAN) AT ABOUT 20 MILE AN HR ON THE TAKE OFF ROLL THE LT MAIN GEAR SPRING SNAPPED OFF ABOUT 6 " UP FROM THE AXLE, CAUSING THE ACFT TO SPIN TO THE LT AND TILT UP - [SDR CA150617019](https://openairdocs.org/sdr/CA150617019), Jun 17, 2015: SUPPORT. DAMAGED. (CAN) DURING ELEVATOR CONTROL MOVEMENT, THE CLEVIS PIN AN21-10, ATTACHED TO THE ARM ASSEMBLY, IS CONTACTING THE SUPPORT ASSEMBLY WEARING A .025 DEEP GROOVE IN T - [SDR ZM9C2015FA0000433](https://openairdocs.org/sdr/ZM9C2015FA0000433), Jun 1, 2015: MOUNT. CRACKED. CRACKS VISUALLY IDENTIFIED IN 3 LOCATIONS ON ENGINE MOUNT, 0751003-31. MOUNT IS APPROVED BY MFG FOR INSTALLATION WITH 2 BLADE PROP ONLY. ACFT IS APPROVED BY STC - [SDR 2015F00081](https://openairdocs.org/sdr/2015F00081), Apr 1, 2015: STRINGER. CRACKED. DURING A YEARLY FLOAT REMOVAL, FOUND A CRACK IN BOTH LEFT AND RIGHT TAIL STRINGERS. THESE CRACKS WERE AT BOTH REAR ATTACH POINTS FOR THE HORIZONTAL STABILIZER. - [SDR CA131211001](https://openairdocs.org/sdr/CA131211001), Dec 11, 2013: LANDING GEAR. COLLAPSED. (CAN) ACFT WAS TAXIING AROUND APRON, AND WHILE MAKING A RT TURN THE LT MAIN GEAR IN INADVERTENTLY COLLAPSED. PERFORMED ENGINE GROUND RUN TO RUN HYDRAULICS, HAS - [SDR CA131209014](https://openairdocs.org/sdr/CA131209014), Dec 9, 2013: SEAL. LEAKING. (CAN) CUSTOMER REPORTS FUEL LEAKS FROM ELECTRIC FUEL BOOST PUMP WHEN OPERATING: TROUBLESHOOTING CARRIED OUT AND FOUND FUEL LEAKS FROM ELECTRIC FUEL BOOST PUMP M - [SDR CA131025008](https://openairdocs.org/sdr/CA131025008), Oct 25, 2013: ROTOR. CRACKED. (CAN) MAGNETO WAS RECEIVED WITH A TAG STATING "MAG DEAD". WHEN TESTED THE MAGNETO DID NOT PRODUCE A SPARK UNTIL OVER 1000 RPM. THE MAGNETO HAD ITS ORIGINAL TORQ - [SDR 2013F00177](https://openairdocs.org/sdr/2013F00177), Aug 30, 2013: ENGINE. SHUTDOWN. APPROXIMATELY 15 MINUTES AFTER DROPPING OFF PASSENGERS, EXPERIENCED A TOTAL ENGINE SHUTDOWN. AFTER SAFELY LANDING, USED ELECTRIC FUEL PUMP TO RESTART ENGINE. WI - [SDR CA130814003](https://openairdocs.org/sdr/CA130814003), Aug 13, 2013: COLLECTOR. CRACKED. (CAN) DURING CLIMB OUT AFTER TAKEOFF, THE PILOT HEARD A LOUDER THAN NORMAL ENGINE NOISE. ALL ENGINE PARAMETERS WERE NORMAL, SO THE PILOT FLEW TO THE MAINTENANCE - [SDR CA130605011](https://openairdocs.org/sdr/CA130605011), Jun 4, 2013: EXHAUST DUCT. CRACKED. (CAN) WHILE PERFORMING AN ANNUAL INSPECTION, THE RT EXHAUST COLLECTOR, PN 0750238-47AWL, TSN:96.7 HRS, WAS FOUND CRACKED. THE EXHAUST COLLECTOR WAS REPLACED WIT - [SDR CA130605005](https://openairdocs.org/sdr/CA130605005), May 24, 2013: BRACKET. BENT. (CAN) COULD NOT RETRACT FLAPS ON MORNING RUN UP. BRACKET BENT LOW ENOUGH FOR UPPER IN INBD FLAP ATTACHMENT TO INTERFERE WITH MOVEMENT. PREVENTING FLAP FROM RETR - [SDR CA130412014](https://openairdocs.org/sdr/CA130412014), Apr 11, 2013: MAGNETO. MULTIPLE FAIL. (CAN) IMPULSE COUPLING CAM CRACKED AT KEYWAY, FOUND EXCESSIVE ANTISEIZE AND EXCESSIVE RETAINER NUT TORQUE AT FACTORY ASSY, BOTH CAPACITOR O-RING SEALS ROTTED BY - [SDR YAAA201306200001](https://openairdocs.org/sdr/YAAA201306200001), Mar 6, 2013: PISTON. FRACTURED. NUMBER 1 PISTON WAS FRACTURED AT THE PISTON PIN BORE, RELEASING THE NR 1 ROD AND PISTON PIN ASSY AT THE SMALL END. THE UNSUPPORTED NR 1 ROD AND PISTON ASSY CAUS - [SDR CA130205003](https://openairdocs.org/sdr/CA130205003), Jan 31, 2013: FITTING. CRACKED. (CAN) DURING REASSEMBLY AFTER REPAIR, THE LT MAIN GEAR SADDLE WAS FOUND TO HAVE CORROSION ON LOWER FORWARD EDGE. UPON A CLOSER INSPECTION OF THE AREA, A STRESS - [SDR CA120911007](https://openairdocs.org/sdr/CA120911007), Sep 7, 2012: EXHAUST DUCT. CRACKED. (CAN) EXHAUST Y PIPE, CRACKED INTERNALLY AT THE JUNCTION OF LT AND RT HAND EXHAUST BANK. IF MATERIAL BREAKS FREE IT WILL GO DIRECTLY INTO THE INLET OF THE TURBO - [SDR CA120830002](https://openairdocs.org/sdr/CA120830002), Aug 30, 2012: FUEL CONTROL. MALFUNCTIONED. (CAN) ACFT APPLIED POWER FOR TAKEOFF AND ENGINE DID NOT ACCELERATE PAST IDLE. FCU REPLACED AND GROUND TESTED SERVICEABLE. NOT FURTHER PROBLEMS NOTED. - [SDR CA120820006](https://openairdocs.org/sdr/CA120820006), Aug 16, 2012: LEG ASSY. BROKEN. (CAN) ACFT WAS ON GROUND TIED DOWN CUSTOMER WALKED BY AND NOTICED GEAR LEG BROKEN. - [SDR CA120824008](https://openairdocs.org/sdr/CA120824008), Aug 5, 2012: CYLINDER HEAD. CRACKED. (CAN) NR 1 CYLINDER CRACKED IN THE HEAD DURING CLIMB ABOUT 10 MINUTES INTO THE FLIGHT. ACFT RETURNED TO BASE FOR AN UNEVENTFUL LANDING. - [SDR CA120525010](https://openairdocs.org/sdr/CA120525010), May 25, 2012: ADAPTER. FAILED. (CAN) DURING START UP WHEN THE STARTER WAS ENGAGED, THE STARTER SPUN OVER AS IF IT HAD NO LOAD AND UNUSUALLY HIGH SPEED. HOWEVER THE PROP DID NOT MOVE. STARTER - [SDR CA120419003](https://openairdocs.org/sdr/CA120419003), Mar 29, 2012: BEARING. DELAMINATED. (CAN) OIL FILTER CONTAMINATION DELAMINATION MAIN BEARING. - [SDR CA111101006](https://openairdocs.org/sdr/CA111101006), Oct 27, 2011: ALTERNATOR. UNSERVICEABLE. (CAN) BATTERY DISCHARGE NOTED DURING FLIGHT. ALTERNATOR FOUND U/S AND REPLACED. - [SDR CA111021011](https://openairdocs.org/sdr/CA111021011), Oct 21, 2011: CLAMP. CRACKED. (CAN) DURING AN INSPECTION, THE AME FOUND THE SPREADER BAR ASSY CRACKED AT AFT INBD BOTTOM BESIDE SPREADER BAR CLAMP ON CENTER LINE OF SPREADER BAR. SPREADER BA - [SDR CA110823006](https://openairdocs.org/sdr/CA110823006), Aug 19, 2011: LINK ROD. BROKEN. (CAN) GEAR SWING DURING MX. UPON RETRACTION PISTON ROD LINK BROKE. UPON INSPECTION FOUND INTERGRANULAR CORROSION AT BRAKE POINT. REPLACED PISTON ROD LINK WITH S - [SDR CA110817002](https://openairdocs.org/sdr/CA110817002), Aug 12, 2011: THRU BOLT. FAILED. (CA) DURING MX CRANKCASE & CYLINDER THRU BOLT BROKE AT AT AN ESTIMATED 10 FOOT POUNDS OF TORQUE. - [SDR CA110331026](https://openairdocs.org/sdr/CA110331026), Mar 21, 2011: RELIEF VALVE. BROKEN. (CAN) OIL PRESSURE VALVE HSG ON BACK OF ENGINE WAS FOUND LEAKING. MAINTENANCE REMOVED THE VALVE, BUT UPON RE-INSTALLATION, THE VALVE BROKE IN HALF. THE AREA BET - [SDR 2011FA0000234](https://openairdocs.org/sdr/2011FA0000234), Feb 21, 2011: CONTROL CABLE. OUT OF POSITION. DURING THE FIRST FLIGHT TEST AFTER ENGINE INSTALLATION, THROTTLE CONTROL CABLE STARTED TO MOVE HARD AND SEEMED TO BE BINDING. PILOT WAS UNABLE TO MAKE SMALL ADJ - [SDR CA110218007](https://openairdocs.org/sdr/CA110218007), Feb 17, 2011: CHANNEL. CRACKED. DURING THE REPAIR OF THE STABILIZER WHILE REPLACING THE BRACKETS DUE TO CRACKS, IT WAS ALSO FOUND THAT THE CHANNEL WAS CRACKED (PN 0723603-1), BRACKETS AND CHAN - [SDR CA101130009](https://openairdocs.org/sdr/CA101130009), Nov 16, 2010: SLEEVE. PULLED. OUTER SLEEVE THAT KEEPS THE INNER CABLE STRAIGHT PULLED OUT FROM ITS PIVOT POINT BY WEAR. CABLE WAS EXPOSED (4 INCHES OF IT) AND WOULD KINK WHEN AT FULL RICH PO - [SDR CA100224013](https://openairdocs.org/sdr/CA100224013), Feb 18, 2010: SOLENOID. FAILED. (CAN) STARTER SOLENOID STAYED CLOSED WHEN NOT SELECTED. RESULTED IN THE THE STARTER TURNING THE ENGINE OVER AS SOON AS THE MASTER IS TURNED ON EVEN THOUGH THE S - [SDR CA100224012](https://openairdocs.org/sdr/CA100224012), Feb 15, 2010: SOLENOID. FAILED. (CAN) STARTER SOLENOID STAYED CLOSED WHEN NOT SELECTED. RESULTED IN THE STARTER TURNING THE ENGINE OVER AS SOON AS THE MASTER IS TURNED ON EVEN THOUGH THE START - [SDR 2010FA0000430](https://openairdocs.org/sdr/2010FA0000430), Jan 31, 2010: CASTOR. DAMAGED. OWNER/OPERATOR OF AMPHIBIOUS AEROCET 3400 FLOATS INSTALLED ON ACFT HAD BEEN MAINTAINING THE FLOATS IAW THE MFG MM BY GREASING THE NOSE GEAR CASTOR ASSEMBLIES ON All 283: https://openairdocs.org/engine/continental-io-520-d/reports.md ## STCs that may be installed (OpenAirDocs) (58, 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 IO-520 Series - [STC SE01844SE](https://openairdocs.org/stc/SE01844SE): Installation of fuel control modification and associated hardware. Metal Innovations Inc. dba MII Aero - [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 SE03704AT](https://openairdocs.org/stc/SE03704AT): Convert Continental Motors IO-520-A, -D, -E, -F and -L engine to Vitatoe Aviation, LLC IO-520-A-CF, -D-CF, -E-CF, -F-CF or -L-CF engine in accordance with Master Parts List PL2008-7 Rev. C dated August 2, 2018 or later FAA approved revision and Assembly Instructions PL2008-13 Rev C. dated August 2, 2018 or later FAA approved revision. Vitatoe Aviation LLC - [STC SE09217SC](https://openairdocs.org/stc/SE09217SC): Installation of modified fuel injector nozzles. General Aviation Modifications Inc - [STC SE94WE](https://openairdocs.org/stc/SE94WE): Installation of oil fitting(AN-823-5D) in rocker box cover. Airwolf Filter Corporation - [STC SE00115SE](https://openairdocs.org/stc/SE00115SE): Replaces Teledyne-Continental Part Number 646277 lifter bodies. B & B Aviation LLC - [STC SE5784NM](https://openairdocs.org/stc/SE5784NM): Replacement of Teledyne Continental original camshaft. B & B Aviation LLC - [STC SE70RM](https://openairdocs.org/stc/SE70RM): Installation of compressor bracket. Air Comm Corporation - [STC SE2068NM](https://openairdocs.org/stc/SE2068NM): Remove fuel injection system, install Marvel Schebler carburetor system and revise operating limits as shown in addendum SE2068NM. Kenmore Air Harbor LLC - [STC SE09637SC](https://openairdocs.org/stc/SE09637SC): Remove existing rocker arm assemblies and install modify rocker arm assemblies. General Aviation Modifications Inc - [STC SE03187AT](https://openairdocs.org/stc/SE03187AT): STC for the conversion of Teledyne Continental Motors (TCM) Models IO-520-D, -E, -F, or -L to the respective PowerLite Models IO-550-D-AP, -E-AP, -F-AP, or -L-AP which have the same ratings and limitations as TCM Models IO-550-D, -E, -F, or -L, respectively. Vitatoe Aviation LLC - [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 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. 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 SE3330NM](https://openairdocs.org/stc/SE3330NM): Continental valve cover gasket. Real Gaskets Tennessee - [STC SE7325SW-D](https://openairdocs.org/stc/SE7325SW-D): Installation of crankcase modifications. RAM Aircraft Limited Partnership - [STC SE09846SC](https://openairdocs.org/stc/SE09846SC): Installation of S539800M30 starter adapter springs. Aircraft Specialties Services Inc - [STC SE443GL](https://openairdocs.org/stc/SE443GL): Incorporation of a fuel flow transducer. Shadin Avionics - [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 SE00215DE](https://openairdocs.org/stc/SE00215DE): Modification to Teledyne Continental engine for the installation of a turbonormalizing system. Engine Technologies Inc - [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 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-520 Series - [STC SE09289SC](https://openairdocs.org/stc/SE09289SC): Installation of modified fuel injector nozzles. General Aviation Modifications, Inc - [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 IO-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 SE75WE](https://openairdocs.org/stc/SE75WE): Installation of emergency fuel system. Mission Aviation Fellowship - [STC SE00143SE](https://openairdocs.org/stc/SE00143SE): 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 IO-520 Series - [STC SE4314NM](https://openairdocs.org/stc/SE4314NM): Replacement of the original engine oil screen with an external mounted full flow oil adapter & 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 SE400NE](https://openairdocs.org/stc/SE400NE): Installation of Auto-vac-2 instrument vacuum system. Raymond Ives - [STC SE7422SW](https://openairdocs.org/stc/SE7422SW): Installation of Performance Engineering roller rocker arms. Performance Engineering - [STC SE938GL](https://openairdocs.org/stc/SE938GL): Installation of oil filler tube extension. Rapco, 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 All 58: https://openairdocs.org/engine/continental-io-520-d/stcs.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.