# Lycoming IO-520 series

- Type: Engine model (FAA registry)
- Registry code: 41584
- Manufacturer (registry): LYCOMING
- Model: IO-520 SER
- Engine type: Reciprocating
- Power: 285 hp
- Data sheet: [TCDS E5CE](https://openairdocs.org/tcds/E5CE) (OpenAirDocs)
- Holder: Continental Aerospace Technologies, Inc.
- Installed in: 49 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-io-520-series

The registry names only the engine series, so ADs for every model in the series are matched.

## 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 95-03-14](https://openairdocs.org/ad/95-03-14): Engine Mount Brackets · Continental Motors IO-346-A, IO-346-B, IO-520-C and 2 more. Effective Mar 13, 1995
- [AD 93-16-15](https://openairdocs.org/ad/93-16-15): Fuel Pump Drive Shaft · Continental Motors IO-520-B, IO-520-BA, IO-520-BB and 27 more. Effective Dec 14, 1993
- [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 88-17-03](https://openairdocs.org/ad/88-17-03): Starter Adapter Shaftgear Assembly · Continental Motors IO-520-BA, IO-520-BB, IO-550-B and 4 more. Effective Aug 10, 1988
- [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 87-14-02](https://openairdocs.org/ad/87-14-02): Starter Adapter Shaftgear · Continental Motors IO-520-BA, IO-520-BB, IO-550-B and 4 more. Effective Oct 5, 1987
- [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 80-06-05](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 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 72-24-03](https://openairdocs.org/ad/72-24-03): Oil Filter Adapter · Continental Motors IO-360-A, IO-520-B, IO-520-C and 3 more. Effective Nov 15, 1972
- [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 94-09-07](https://openairdocs.org/ad/94-09-07) (historical): Engine Mount Brackets · Teledyne Continental Motors IO-346-A, IO-346-B, IO-520-C and 2 more. Effective Jul 5, 1994
- [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 87-23-08](https://openairdocs.org/ad/87-23-08) (historical): Crankshafts · Teledyne Continental Motors IO-520 Series (all) and TSIO-520 Series (all). Effective Nov 30, 1987
- [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) (11)

- [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
- [SAIB NE-02-41](https://openairdocs.org/saib/NE-02-41): . Issued Aug 8, 2002

## Registered aircraft (49)

- [N108RK](https://openairdocs.org/aircraft/N108RK): [Barnard Brian D](https://openairdocs.org/faa-owner/BARNARD%20BRIAN%20D), [Tallahassee, FL](https://openairdocs.org/faa-place/FL/Tallahassee), built 1979, S/N E-1513
- [N132B](https://openairdocs.org/aircraft/N132B): [Mds Flying LLC](https://openairdocs.org/faa-owner/MDS%20FLYING%20LLC), [Deephaven, MN](https://openairdocs.org/faa-place/MN/Deephaven), built 1981, S/N TE-1189
- [N180YS](https://openairdocs.org/aircraft/N180YS): [Montgomery Jeffrey](https://openairdocs.org/faa-owner/MONTGOMERY%20JEFFREY), [Lone Pine, CA](https://openairdocs.org/faa-place/CA/Lone%20Pine), built 1958, S/N 51398
- [N1836R](https://openairdocs.org/aircraft/N1836R): [Bc Properties LLC](https://openairdocs.org/faa-owner/BC%20PROPERTIES%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), S/N 18502551
- [N185PM](https://openairdocs.org/aircraft/N185PM): [Moody Bible Institute Of Chicago](https://openairdocs.org/faa-owner/MOODY%20BIBLE%20INSTITUTE%20OF%20CHICAGO), [Spokane Valley, WA](https://openairdocs.org/faa-place/WA/Spokane%20Valley), built 1977, S/N 18503415
- [N1998V](https://openairdocs.org/aircraft/N1998V): [Ledbetter Zachary S](https://openairdocs.org/faa-owner/LEDBETTER%20ZACHARY%20S), [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla), built 1973, S/N U20602035
- [N19MT](https://openairdocs.org/aircraft/N19MT): [Daviation Inc](https://openairdocs.org/faa-owner/DAVIATION%20INC), [Willoughby, OH](https://openairdocs.org/faa-place/OH/Willoughby), built 1976, S/N E798
- [N214DR](https://openairdocs.org/aircraft/N214DR): [Marsh David](https://openairdocs.org/faa-owner/MARSH%20DAVID), [Flower Mound, TX](https://openairdocs.org/faa-place/TX/Flower%20Mound), built 1969, S/N D-8997
- [N2167Q](https://openairdocs.org/aircraft/N2167Q): [Anderson Kevin W](https://openairdocs.org/faa-owner/ANDERSON%20KEVIN%20W), [Whitman, NE](https://openairdocs.org/faa-place/NE/Whitman), S/N 18502483
- [N23VV](https://openairdocs.org/aircraft/N23VV): [Roberts Daniel L](https://openairdocs.org/faa-owner/ROBERTS%20DANIEL%20L), [Westerville, OH](https://openairdocs.org/faa-place/OH/Westerville), built 1990, S/N CE1490
- [N267PD](https://openairdocs.org/aircraft/N267PD): [White Hat Repair LLC](https://openairdocs.org/faa-owner/WHITE%20HAT%20REPAIR%20LLC), [Greenleaf, ID](https://openairdocs.org/faa-place/ID/Greenleaf), built 1967, S/N TE-284
- [N280SW](https://openairdocs.org/aircraft/N280SW): [Katie Investments Inc](https://openairdocs.org/faa-owner/KATIE%20INVESTMENTS%20INC), [Little Rock, AR](https://openairdocs.org/faa-place/AR/Little%20Rock), built 1978, S/N 20604561
- [N3030S](https://openairdocs.org/aircraft/N3030S): [Brewer Mike](https://openairdocs.org/faa-owner/BREWER%20MIKE), [Cameron Park, CA](https://openairdocs.org/faa-place/CA/Cameron%20Park), built 1978, S/N E-1280
- [N30422](https://openairdocs.org/aircraft/N30422): [Casey Michael B](https://openairdocs.org/faa-owner/CASEY%20MICHAEL%20B), [Hemingford, NE](https://openairdocs.org/faa-place/NE/Hemingford), built 1976, S/N 18503129
- [N332HP](https://openairdocs.org/aircraft/N332HP): [Dolan Charles A](https://openairdocs.org/faa-owner/DOLAN%20CHARLES%20A), [Augusta, GA](https://openairdocs.org/faa-place/GA/Augusta), built 1990, S/N CE1508
- [N340CH](https://openairdocs.org/aircraft/N340CH): [Aircraft & Aviation Professional LLC](https://openairdocs.org/faa-owner/AIRCRAFT%20%26%20AVIATION%20PROFESSIONAL%20LLC), [Coldwater, MI](https://openairdocs.org/faa-place/MI/Coldwater), built 1979, S/N 310R1565
- [N360PM](https://openairdocs.org/aircraft/N360PM): [Bon Aire Inc](https://openairdocs.org/faa-owner/BON%20AIRE%20INC), [Middlesboro, KY](https://openairdocs.org/faa-place/KY/Middlesboro), built 1978, S/N E-1253
- [N36846](https://openairdocs.org/aircraft/N36846): [Armbruster LLC](https://openairdocs.org/faa-owner/ARMBRUSTER%20LLC), [Amherst, OH](https://openairdocs.org/faa-place/OH/Amherst), built 1979, S/N 310R1600
- [N372RV](https://openairdocs.org/aircraft/N372RV): [Jordan Stephen L](https://openairdocs.org/faa-owner/JORDAN%20STEPHEN%20L), [Indian Springs, AL](https://openairdocs.org/faa-place/AL/Indian%20Springs), built 2007, S/N 40372
- [N388F](https://openairdocs.org/aircraft/N388F): [Mcquillin Transport LLC](https://openairdocs.org/faa-owner/MCQUILLIN%20TRANSPORT%20LLC), [Lecompte, LA](https://openairdocs.org/faa-place/LA/Lecompte), built 1989, S/N CE1334
- [N39RH](https://openairdocs.org/aircraft/N39RH): [Olympic View Aircraft LLC](https://openairdocs.org/faa-owner/OLYMPIC%20VIEW%20AIRCRAFT%20LLC), [University Place, WA](https://openairdocs.org/faa-place/WA/University%20Place), built 1977, S/N TE-1113
- [N44VK](https://openairdocs.org/aircraft/N44VK): [Bates Management Inc](https://openairdocs.org/faa-owner/BATES%20MANAGEMENT%20INC), [Woodstock, GA](https://openairdocs.org/faa-place/GA/Woodstock), built 1979, S/N 310R1689
- [N520YH](https://openairdocs.org/aircraft/N520YH): [Turnbull Timothy H](https://openairdocs.org/faa-owner/TURNBULL%20TIMOTHY%20H), [Mccall, ID](https://openairdocs.org/faa-place/ID/Mccall), built 1978, S/N 18503619
- [N550DD](https://openairdocs.org/aircraft/N550DD): [Saratoga Aviation LLC](https://openairdocs.org/faa-owner/SARATOGA%20AVIATION%20LLC), [Rocky Mount, NC](https://openairdocs.org/faa-place/NC/Rocky%20Mount), built 1996, S/N 32-46037
- [N550JR](https://openairdocs.org/aircraft/N550JR): [Urban Cowboy Aviation LLC](https://openairdocs.org/faa-owner/URBAN%20COWBOY%20AVIATION%20LLC), [Richland, NE](https://openairdocs.org/faa-place/NE/Richland), built 1990, S/N CE-1449
- [N580TF](https://openairdocs.org/aircraft/N580TF): [1294 Transportation Corp](https://openairdocs.org/faa-owner/1294%20TRANSPORTATION%20CORP), [Speonk, NY](https://openairdocs.org/faa-place/NY/Speonk), built 2004, S/N 18281317
- [N581CP](https://openairdocs.org/aircraft/N581CP): [Rdc Leasing Lc](https://openairdocs.org/faa-owner/RDC%20LEASING%20LC), [Johnston, IA](https://openairdocs.org/faa-place/IA/Johnston), built 1980, S/N 18504090
- [N6292G](https://openairdocs.org/aircraft/N6292G): [Hutchison Glen A](https://openairdocs.org/faa-owner/HUTCHISON%20GLEN%20A), [Traphill, NC](https://openairdocs.org/faa-place/NC/Traphill), S/N 055
- [N633AP](https://openairdocs.org/aircraft/N633AP): [Gunter Aviation LLC](https://openairdocs.org/faa-owner/GUNTER%20AVIATION%20LLC), [Bainbridge, GA](https://openairdocs.org/faa-place/GA/Bainbridge), built 1991, S/N CE-1632
- [N7034E](https://openairdocs.org/aircraft/N7034E): [Range View Investments LLC](https://openairdocs.org/faa-owner/RANGE%20VIEW%20INVESTMENTS%20LLC), [Austin, TX](https://openairdocs.org/faa-place/TX/Austin), built 1962, S/N LF-49
- [N727NE](https://openairdocs.org/aircraft/N727NE): [Deeair Ltd](https://openairdocs.org/faa-owner/DEEAIR%20LTD), [Dayton, OH](https://openairdocs.org/faa-place/OH/Dayton), built 1979, S/N U20605152
- [N7355C](https://openairdocs.org/aircraft/N7355C): [Geneva Laes Aviation LLC](https://openairdocs.org/faa-owner/GENEVA%20LAES%20AVIATION%20LLC), [Lake Geneva, WI](https://openairdocs.org/faa-place/WI/Lake%20Geneva), built 1973, S/N TE-925
- [N7402Q](https://openairdocs.org/aircraft/N7402Q): [Richs Alaskan Flying Adventures LLC](https://openairdocs.org/faa-owner/RICHS%20ALASKAN%20FLYING%20ADVENTURES%20LLC), [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla), built 1973, S/N U20602192
- [N742CH](https://openairdocs.org/aircraft/N742CH): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 1969, S/N 3240646
- [N7500N](https://openairdocs.org/aircraft/N7500N): [Reiter Ken](https://openairdocs.org/faa-owner/REITER%20KEN), [Plano, TX](https://openairdocs.org/faa-place/TX/Plano), built 1968, S/N E-41
- [N757ER](https://openairdocs.org/aircraft/N757ER): [Johnson Nathaniel D](https://openairdocs.org/faa-owner/JOHNSON%20NATHANIEL%20D), [Attalla, AL](https://openairdocs.org/faa-place/AL/Attalla), built 1966, S/N D-8139
- [N7806S](https://openairdocs.org/aircraft/N7806S): [Aeroquest LLC](https://openairdocs.org/faa-owner/AEROQUEST%20LLC), [Plano, TX](https://openairdocs.org/faa-place/TX/Plano), built 1978, S/N U20604168
- [N811N](https://openairdocs.org/aircraft/N811N): [Asplundh Eric P](https://openairdocs.org/faa-owner/ASPLUNDH%20ERIC%20P), [Bryn Athyn, PA](https://openairdocs.org/faa-place/PA/Bryn%20Athyn), built 1978, S/N 310R1317
- [N8182Z](https://openairdocs.org/aircraft/N8182Z): [Wolf Richard Cory](https://openairdocs.org/faa-owner/WOLF%20RICHARD%20CORY), [Syracuse, UT](https://openairdocs.org/faa-place/UT/Syracuse), built 1963, S/N 2050182
- [N82903](https://openairdocs.org/aircraft/N82903): [Nms Air Services LLC](https://openairdocs.org/faa-owner/NMS%20AIR%20SERVICES%20LLC), [Chelmsford, MA](https://openairdocs.org/faa-place/MA/Chelmsford), built 1993, S/N CE-1740
- [N8446Q](https://openairdocs.org/aircraft/N8446Q): [Harms Harvey D](https://openairdocs.org/faa-owner/HARMS%20HARVEY%20D), [Chugiak, AK](https://openairdocs.org/faa-place/AK/Chugiak), built 1978, S/N 18503704
- [N8893H](https://openairdocs.org/aircraft/N8893H): [Mac-Mor Ltd](https://openairdocs.org/faa-owner/MAC-MOR%20LTD), [Mukwonago, WI](https://openairdocs.org/faa-place/WI/Mukwonago), built 1947, S/N NAV-4-893
- [N90HF](https://openairdocs.org/aircraft/N90HF): [Novak Todd](https://openairdocs.org/faa-owner/NOVAK%20TODD), [Lumberton, NJ](https://openairdocs.org/faa-place/NJ/Lumberton), built 1990, S/N CE-1495
- [N915NG](https://openairdocs.org/aircraft/N915NG): [Willard Theron K](https://openairdocs.org/faa-owner/WILLARD%20THERON%20K), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1975, S/N U20602946
- [N92734](https://openairdocs.org/aircraft/N92734): [Clark Iain](https://openairdocs.org/faa-owner/CLARK%20IAIN), [San Jose, CA](https://openairdocs.org/faa-place/CA/San%20Jose), built 1996, S/N 166
- [N92WW](https://openairdocs.org/aircraft/N92WW): [Moran Richard J](https://openairdocs.org/faa-owner/MORAN%20RICHARD%20J), [Balsam, NC](https://openairdocs.org/faa-place/NC/Balsam), built 1994, S/N CE-1779
- [N975R](https://openairdocs.org/aircraft/N975R): [Mclane Norman B](https://openairdocs.org/faa-owner/MCLANE%20NORMAN%20B), [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa), built 1979, S/N D-10276
- [N9798Z](https://openairdocs.org/aircraft/N9798Z): [Wright Air Service Inc](https://openairdocs.org/faa-owner/WRIGHT%20AIR%20SERVICE%20INC), [Fairbanks, AK](https://openairdocs.org/faa-place/AK/Fairbanks), built 1982, S/N U20606665
- [N9EJ](https://openairdocs.org/aircraft/N9EJ): [Dk Air LLC](https://openairdocs.org/faa-owner/DK%20AIR%20LLC), [Brookings, OR](https://openairdocs.org/faa-place/OR/Brookings), built 1956, S/N BG168

## NTSB investigations (10)

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 WPR23LA165](https://openairdocs.org/ntsb/WPR23LA165), Apr 24, 2023: Oneal J R/Oneal R C EDI Express (N92734), Tracy, CA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the takeoff roll.
- [NTSB ERA23FA113](https://openairdocs.org/ntsb/ERA23FA113), Jan 19, 2023: Beech A36 (N19MT), North Castle, NY, substantial damage, 2 fatal. Probable cause: The pre-ignition/detonation damage to the No. 4 piston for reasons that could not be determined, which allowed the crankcase to become pressurized and resulted in oil exhaustion and subsequent…
- [NTSB GAA16CA423](https://openairdocs.org/ntsb/GAA16CA423), Aug 4, 2016: Beech F33 (N90HF), Bivalve, MD, substantial damage. Probable cause: The pilot's excessive airspeed during landing, which resulted in a runway overrun, and impact with a ditch.
- [NTSB ERA14WA304](https://openairdocs.org/ntsb/ERA14WA304), Jun 19, 2014: Cessna U206E (N4258), Cerro Militar, Municipio de Calima, Colombia, substantial damage, 3 fatal
- [NTSB WPR12LA023](https://openairdocs.org/ntsb/WPR12LA023), Oct 28, 2011: Cessna 185 (N520YH), Prineville, OR, substantial damage. Probable cause: A total loss of engine power due to fuel starvation, which resulted from the pilot inadvertently leaving the fuel selector set to the left tank. Contributing to the accident was the pilot’s deviation…
- [NTSB LAX08FA092](https://openairdocs.org/ntsb/LAX08FA092), Apr 3, 2008: Beech 95-B55 (N20480), Benson, AZ, substantial damage, 2 fatal. Probable cause: The pilot's misjudged speed and altitude during approach that led to a long landing and his subsequent failure to maintain control during an attempted go-around. Contributing to the accident were the…
- [NTSB DFW05CA247](https://openairdocs.org/ntsb/DFW05CA247), Sep 22, 2005: Smith, Ted Aerostar 601P (N909KF), Mexia, TX, destroyed. Probable cause: The pilot's failure to maintain clearance from the barn. Contributing factors were the pilot's inadequate preflight planning/preparation and the high-density altitude.
- [NTSB LAX04LA074](https://openairdocs.org/ntsb/LAX04LA074), Dec 20, 2003: Beech B55 (N20480), Angwin, CA, substantial damage. Probable cause: The pilot's continued VFR flight into adverse weather conditions during cruise flight, which resulted in a low fuel state and a precautionary landing in rough terrain.
- [NTSB MIA95LA184](https://openairdocs.org/ntsb/MIA95LA184), Jul 13, 1995: Cessna T188C (N2119J), Ruleville, MS, substantial damage. Probable cause: The pilot-in-command's failure to abort the takeoff when the aircraft accelerated slowly. Contributing to the accident was the over loading of the aircraft by ground personnel and the failure of the…
- [NTSB ANC92T#A10](https://openairdocs.org/ntsb/ANC92T%23A10), Aug 16, 1992: Cessna 206 (N9798Z), Shishmaref, AK, substantial damage

## FAA accident and incident reports (16)

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 20230119008389A](https://openairdocs.org/incident/20230119008389A), Jan 19, 2023: Beech A36 (N19MT), North Castle, NY, Substantial damage, 2 fatal. White plains, NY (hpn): [privacy data omitted] BE36, part 91, IFR, jfk to cgf, crashed into trees on a peninsula in rye lake, approximately 1 mile nnw of hpn.…
- [Incident 20220428010479I](https://openairdocs.org/incident/20220428010479I), Apr 28, 2022: Beech A36 (N360PM), Middlesboro, KY, Minor damage. Upon landing at Middlesboro Bell county airport in BE36 [privacy data omitted], the pilot reported a mushy right brake. However, pilot failed to maintain…
- [Accident 20160804013129A](https://openairdocs.org/incident/20160804013129A), Aug 4, 2016: Beech F33A (N90HF), Bivalve, MD, Substantial damage. The pilot stated that upon landing on his private grass strip he had touched down too fast. He applied the brakes hard but continued to slide to the end of the…
- [Incident 20130726012439I](https://openairdocs.org/incident/20130726012439I), Jul 26, 2013: Cessna A185F (N30422), Englewood, CO, Minor damage. On 07/26/2013 at approximately 1550 hours MDT, N30422 a Cessna skywagon model 185 aircraft was damaged after a propeller strike with the runway pavement at…
- [Accident 20111028025799A](https://openairdocs.org/incident/20111028025799A), Oct 28, 2011: Cessna A185F (N520YH), Bend, OR, Substantial damage. 10/30/2011 - Aircraft enroute from shepp airfield near salmon, id to Bend, OR lost power approximately 15 miles east of Bend, OR (S07). Pilot was was unable to…
- [Incident 20101016049199I](https://openairdocs.org/incident/20101016049199I), Oct 16, 2010: Cessna U206G (N7806S), Gordanville, TX, Minor damage. Incident occured on 18:45, 10/16/2010, at Cedar Mills Airport (3T0) gordonville TX, in VMC weather conditions. The pilot was taxiing Cessna 206G model (N7806S)…
- [Accident 20080402835929A](https://openairdocs.org/incident/20080402835929A), Apr 2, 2008: Beech 95B55 (N20480), Benson, AZ, Destroyed, 2 fatal. (-23) Aircraft departed safford at 1855 on 4/2/08, destined for Benson, AZ. A witness at Benson stated that he saw the aircraft coming in "high" and "hot",…
- [Accident 20050921022779A](https://openairdocs.org/incident/20050921022779A), Sep 21, 2005: Piper PA60601P (N909KF), Mexia, TX, Destroyed. (-23) Departed to the south with 4 pax and full fuel. Runway is 4000' and it was hot. PIC stated that it would not climb at recommended airspeed and that the…
- [Accident 20031220034089A](https://openairdocs.org/incident/20031220034089A), Dec 20, 2003: Beech 95B55 (N20480), Lake Berryessa, CA, Substantial damage. (-23) The flight originated from lake havasu, AZ, and was to terminate at placerville, CA (pvf). The flight was planned for VFR enroute, the weather…
- [Incident 19970726034469I](https://openairdocs.org/incident/19970726034469I), Jul 26, 1997: Amtr SEAWIND3000 (N6292G), Clinton, OK, Minor damage. Narrative: the pilot/instructor, Mr. Sprague was giving dual instruction to Mr. Ulrich. Mr. Sprague failed to lower the landing gear which permitted the…
- [Incident 19951023037159I](https://openairdocs.org/incident/19951023037159I), Oct 23, 1995: Cessna A185F (N185RM), Banks, ID. Engine reported seized during level flight, aircraft made an emergency landing. No damage or injuries reported. Mechanic will be contacted for further…
- [Accident 19950713018299A](https://openairdocs.org/incident/19950713018299A), Jul 13, 1995: Cessna T188C (N2119J), Ruleville, MS, Substantial damage. Slow speed on takeoff. Began dumping load. Rotated end runway. Settled hit ditch. Nosed over. Failed check gross wt
- [Incident 19880405025309I](https://openairdocs.org/incident/19880405025309I), Apr 5, 1988: Cessna A185F (N1836R), Anchorage, AK, Substantial damage. Made high speed taxi on float on a frozen lake to check reaction. Struck a pipe protuding from ice. Flipped over.
- [Accident 19870425011589A](https://openairdocs.org/incident/19870425011589A), Apr 25, 1987: Cessna 172P (N129ER), Daytona Beach, FL, Substantial damage. The aircraft veered off the runway during landing and hit a taxiway marker. No mechanical malfunctions.
- [Accident 19820401001382A](https://openairdocs.org/incident/19820401001382A), Apr 1, 1982: Cessna 172P (N129ER), Ormond Beach, FL, Substantial damage. Was struck from behind by N29ER while waiting takeoff sequence. Other pilot failed to note while looking at a map.
- [Incident 19810605040329I](https://openairdocs.org/incident/19810605040329I), Jun 5, 1981: Beech 36BEECH (N7500N), Goodyear, AZ, Minor damage. During touch and go landing. Pilot rated passenger raised gear thinking he was raising flaps.

## Service difficulty reports (446, newest 50)

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

- [SDR XGNA202404080001](https://openairdocs.org/sdr/XGNA202404080001), Apr 6, 2024: ENGINE. POWER LOSS. DURING CLIMB A PARTIAL LOSS OF ENGINE POWER OCCURRED WITH FLUCTUATING MANIFOLD PRESSURE. ALL OTHER ENGINE PARAMETERS WERE NORMAL. MAGNETO DROPS WERE NORMAL. PIL
- [SDR XGNA202404080002](https://openairdocs.org/sdr/XGNA202404080002), Apr 6, 2024: ENGINE. POWER LOSS. DURING CLIMB A PARTIAL LOSS OF ENGINE POWER OCCURRED WITH FLUCTUATING MANIFOLD PRESSURE. ALL OTHER ENGINE PARAMETERS WERE NORMAL. PILOT RETURNED TO THE AIRPORT.
- [SDR 2022FA0000041](https://openairdocs.org/sdr/2022FA0000041), Jan 21, 2022: NONE. NONE. OPERATOR REPORTED "ALTERNATOR OUT" LIGHT ILLUMINATES INTERMITTENTLY. VISUAL INSPECTION OF WIRING AT ALTERNATOR REVEALED THE ALTERNATOR CASE HALVES WERE NOT SECU
- [SDR 2020FA0000331](https://openairdocs.org/sdr/2020FA0000331), Jul 10, 2020: ROD. BROKEN. DECLARED AN EMERGENCY DURING CRUISE FLIGHT AT 5500 FT. THE PILOT REPORTED ENGINE FAILURE TO ATC AND MADE A FORCED LANDING ON A HIGHWAY, APPROXIMATELY 12 MILES N
- [SDR 2020FA0000046](https://openairdocs.org/sdr/2020FA0000046), Jan 15, 2020: TURNBUCKLE. CORRODED. THE AIRCRAFT WAS IN OUR REPAIR SHOP FOR CYLINDER WORK. THE OWNER ASKED WHILE IT HERE, TO LOOK AT THE RIGHT AILERON TURNBUCKLE. THIS REQUEST WAS BASED ON INFORMA
- [SDR 4S42020F00002](https://openairdocs.org/sdr/4S42020F00002), Jun 18, 2019: DOUBLER. CRACKED. THE FOLLOWING IS THE INFORMATION FOR THE FAA FORM 8010-4 MALFUNCTION OR DEFECT REPORT REFERENCE CRACKS IN THE MLG ACTUATOR BULKHEAD DOUBLERS ON CESSNA 210E SN 2
- [SDR 2020FA0000087](https://openairdocs.org/sdr/2020FA0000087), Feb 18, 2019: FORK. CRACKED. CRACK FOUND ON PITCH CHANGE FORK DURING MAGNETO PARTICLE INSPECTION. THE CRACK IS APPROXIMATELY 0.125 INCHES LONG AND IS LOCATED ON THE BOTTOM CORNER OF THE BLO
- [SDR 2018FA0000518](https://openairdocs.org/sdr/2018FA0000518), Jul 23, 2018: PUMP. BROKEN. HYDRAULIC PUMP LEAKS 5606 FROM HOUSING PARTING SURFACES DURING OPERATION. TWO HOUSING BOLTS APPEAR TO BE STRIPPED, BROKEN AND HOUSING SEAL IS EXTRUDING PAST PAR
- [SDR 2017FA0000376](https://openairdocs.org/sdr/2017FA0000376), Aug 8, 2017: ENGINE. MALFUNCTIONED. AFTER 12 - 15 MINUTES ON THE GROUND AND ENGINE RUN UP WITH NO INDICATIONS OF ANY PROBLEMS WITH ANY SYSTEMS, LEFT ENGINE HAD POWER LOSS WITHIN 1 - 2 SECONDS AFTE
- [SDR 2017FA0000547](https://openairdocs.org/sdr/2017FA0000547), Apr 11, 2017: NUT. BACKED OUT. DURING FLIGHT, NOTICED THE THROTTLE WAS NOT RESPONDING CORRECTLY. IT HAD ADVANCED TO FULL POWER. TRIED TO TROUBLESHOOT AND EVENTUALLY FOUND THE THROTTLE STUCK A
- [SDR 2017F00014](https://openairdocs.org/sdr/2017F00014), Dec 27, 2016: LINE. FAILED. DURING LANDING, NOTED THAT RIGHT HAND BRAKES WERE UNRESPONSIVE. SLOWED AIRCRAFT AS BEST AS POSSIBLE AND ROLLED OFF END OF RUNWAY INTO A GRASS FIELD. AIRCRAFT SU
- [SDR 2016FA0000646](https://openairdocs.org/sdr/2016FA0000646), Dec 8, 2016: LIFTER. DAMAGED. THE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.
- [SDR 2017FA0000583](https://openairdocs.org/sdr/2017FA0000583), Nov 11, 2016: SPRING. WORN. SPRING TENSION WEAKENED OVER TIME AND DEFORMED CAUSING BLOCKAGE AND INABILITY TO PROPERLY BLEED AND SERVICE SYSTEM CAUSING BRAKE FAILURE ON LANDING AND SUBSEQUE
- [SDR 2016FA0000326](https://openairdocs.org/sdr/2016FA0000326), Jul 13, 2016: CLAMP. FAILED. HOSE CLAMP ASSEMBLY FAILED ON THE FUEL INDUCTION SYSTEM CAUSING ENGINE TO FAIL.
- [SDR 2015FA0000519](https://openairdocs.org/sdr/2015FA0000519), Aug 31, 2015: BOLT. CORRODED. AFTER LANDING, DURING THE LANDING ROLL THE LT MAIN GEAR WHEEL COLLAPSED. RESULTING IN DAMAGE TO THE LT WING AND LT SIDE OF FUSELAGE. DURING THE INSPECTION OF TH
- [SDR 2015FA0000278](https://openairdocs.org/sdr/2015FA0000278), Jun 19, 2015: WARNING LIGHT. ILLUMINATED. AIRCRAFT OVERVOLTAGE LIGHT ILLUMINATED.
- [SDR CA150330004](https://openairdocs.org/sdr/CA150330004), Mar 30, 2015: ATTACH FITTING. CRACKED. (CAN) DURING REMOVAL OF ACFT SEAPLANE FLOATS FOR ACFT CORROSION INSPECTIONS, IT WAS FOUND THAT BOTH RT AND LT FORWARD FUSELAGE ATTACH FITTINGS WERE CRACKED. BOT
- [SDR KC2R2015020549760](https://openairdocs.org/sdr/KC2R2015020549760), Feb 4, 2015: IMPULSE COUPLING. CRACKED. IMPULSE COUPLING FOUND TO BE CRACKED AT ADVANCE STOP NOTCHES OF BASE PLATE. DEFECT WAS DISCOVERED USING MAGNETIC PARTICLE INSPECTION OF PART DURING PERFORMANCE 
- [SDR EPUA20150204001](https://openairdocs.org/sdr/EPUA20150204001), Feb 4, 2015: MAGNETO. MALFUNCTIONED. DURING CRUISE PILOT NOTICED RPM LOSS & VIBRATION FROM THE ENG. ACFT RETURNED & LANDED SAFELY WITHOUT INCIDENCE. INSPECTED ENG & REPLACED BOTH MAGNETOS & ALL SPA
- [SDR CTUR2015FA0000020](https://openairdocs.org/sdr/CTUR2015FA0000020), Dec 31, 2014: RETAINING RING. DISLODGED. THE RETAINING RING DISLODGED FROM THE RETAINING RING GROVE, WHICH ALLOWED THE PISTON AND ROD AND MAIN GEAR ACTUATOR GLAND TO SEPARATE FROM THE MAIN GEAR ACTUATO
- [SDR KC2R1218201449621](https://openairdocs.org/sdr/KC2R1218201449621), Dec 18, 2014: IMPULSE COUPLING. CRACKED. DURING A ROUTINE 500 HR INSPECTION OF THE MAGNETOS, FOUND BOTH IMPULSE COUPLINGS CRACKED AT HUB PLATE, NEAR FULL ADVANCE STOP NOTCH.
- [SDR KC2R2014111749540](https://openairdocs.org/sdr/KC2R2014111749540), Nov 17, 2014: IMPULSE COUPLING. CRACKED. DURING A 500 HR INSPECTION ON THE MAGNETOS, IT WAS DISCOVERED THAT IMPULSE COUPLING HAD CRACKS IN FLYWEIGHT BASE PLATE. CRACKS DETECTED USING MAGNETIC PARTICLE 
- [SDR 2014FA0000541](https://openairdocs.org/sdr/2014FA0000541), Aug 10, 2014: CYLINDER. BURST. PROPELLER CYLINDER C3550 BURST FROM OIL PRESSURE, PROBABLE FROM GOVERNOR. GOVERNOR MUST BE TESTED BEFORE PROPELLER REINSTALLED. PROPELLER HUB SERIAL 700239. REJ
- [SDR BSYA20140715001](https://openairdocs.org/sdr/BSYA20140715001), Jul 15, 2014: BATTERY. FAILED. PILOT HAD A COMPLETE ELEC FAILURE AFTER TAKEOFF & RETURNED SAFELY.
- [SDR EPUA20140515001](https://openairdocs.org/sdr/EPUA20140515001), May 14, 2014: ADAPTER. FAILED. PILOT REPORTS THAT THE STARTER WAS SLIPPING. THE STARTER DRIVE ADAPTER SPRING WAS BROKEN & HAD DAMAGED THE CRANKSHAFT GEAR RETAINING BOLTS & SAFETY WIRE. THE SA
- [SDR AU3R20140515001](https://openairdocs.org/sdr/AU3R20140515001), May 14, 2014: HEATER. DISLODGED. DURING REMOVAL OF THE LT LOWER SIDE ENGINE COMPARTMENT INSPECTION PANEL, THE LT SUMP HEATER WAS FOUND DISLOGGED AND WRAPPED AROUND THE THROTTLE ARM AND CABLE.
- [SDR 2014FA0000305](https://openairdocs.org/sdr/2014FA0000305), Apr 25, 2014: DRAG LINK. FAILED. NOSE GEAR COLLAPSE, ON LANDING. STRUCTURAL, PROPELLER, AND SUSPECTED ENGINE DAMAGE OCCURRED. INVESTIGATION REVEALED THAT THE NOSE GEAR DRAG LINK ASSEMBLY BROKEN
- [SDR EPUA20140414001](https://openairdocs.org/sdr/EPUA20140414001), Apr 11, 2014: ADAPTER. FAILED. ENGINE WOULD NOT START. THE STARTER DRIVE ADAPTER FAILED. IT WAS FOUND THAT THE STARTER DRIVE ADAPTER SPRING CONTACTED THE CRANKSHAFT FLYWHEEL RETAINING BOLTS &
- [SDR EPUA20140131001](https://openairdocs.org/sdr/EPUA20140131001), Jan 29, 2014: LIFTER. DIRTY. ENGINE ROUGH, BACKFIRES AT LOW POWER SETTINGS. CLEANED NR 1 INTAKE LIFTER & REINSTALLED. OPERATIONS CHECKED GOOD.
- [SDR EPUA20131010001](https://openairdocs.org/sdr/EPUA20131010001), Oct 8, 2013: DISTRIBUTOR GEAR. BROKEN. DURING FLIGHT THE LT MAGNETO WAS NOT OPERATING CORRECTLY. IN THE COURSE OF NON ROUTINE MAINTENANCE THE LT MAGNETO WAS FOUND TO HAVE A BROKEN DISTRIBUTOR GEAR. F
- [SDR BSYR201309252062](https://openairdocs.org/sdr/BSYR201309252062), Sep 25, 2013: ENGINE. SURGES. AFTER TAKEOFF, LT ENGINE STARTED TO SURGE. PILOT NOTICED FUEL PRESSURE WAS FOLLOWING THE SURGE. SHUTDOWN LT ENGINE AND RETURNED AND LANDED SAFELY WITHOUT INCIDE
- [SDR BSYR20130723054](https://openairdocs.org/sdr/BSYR20130723054), Jul 22, 2013: LANDING GEAR. MALFUNCTIONED. AFTER TAKEOFF, LANDING GEAR WOULD NOT RETRACT. PILOT RETURNED AND LANDED SAFELY WITHOUT INCIDENT. OPEN
- [SDR 2013FA0000286](https://openairdocs.org/sdr/2013FA0000286), May 17, 2013: CIRCUIT BREAKER. FAILED. PILOT REPORTED THE NAV LIGHT AS BEING INOPERATIVE. DURING TROUBLESHOOTING, FOUND THE CIRCUIT BREAKER TO BE AT FAULT. NO PROBABLE CAUSE AT THIS TIME. REPLACED TH
- [SDR MKT2013F00000](https://openairdocs.org/sdr/MKT2013F00000), Apr 16, 2013: TUBE. SPLIT. THIS IS 1 OF ABOUT 10 INNER TUBES WE HAVE HAD SPLIT IN A SEAM AND CAUSED A FLAT TIRE, THERE HAVE BEEN NO SIGN OF A HOLE IN THESE TIRES AND NO HARD LANDING, NOT 
- [SDR VJ3R20130406001](https://openairdocs.org/sdr/VJ3R20130406001), Apr 6, 2013: RELAY. INTERMITTENT. DURING THE SECOND LANDING AT AIRPORT, THE CREW SELECTED GEAR DOWN, THE GEAR SHOWED DOWN AND LOCKED AND CREW SAW AND SMELLED SMOKE. THE LANDING GEAR CIRCUIT BREA
- [SDR 2013FA0000204](https://openairdocs.org/sdr/2013FA0000204), Mar 30, 2013: CIRCUIT BREAKER. FAILED. PILOT REPORTED THE LANDING LIGHT AS BEING INOPERATIVE. DURING TROUBLESHOOTING THE TECHNICIAN FOUND THE CIRCUIT BREAKER TO BE AT FAULT. NO PROBABLE CAUSE AT THIS
- [SDR 2013FA0000220](https://openairdocs.org/sdr/2013FA0000220), Mar 21, 2013: LINE. LEAKING. PILOT REPORTED FUEL ODOR IN CABIN. AFTER INSPECTION, IT WAS DETERMINED THAT THE RIGID FUEL CROSSFEED LINES THAT RUN THROUGH THE FUSELAGE, INSIDE THE MAIN SPAR B
- [SDR 2013FA0000132](https://openairdocs.org/sdr/2013FA0000132), Feb 20, 2013: O-RING. FAILED. INTERNAL O-RING FAILED AND UPLOCK WOULD NOT RELEASE NOSE GEAR, RESULTING IN GEAR NOT EXTENDING, PROP DAMAGE, SUDDEN ENGINE STOPPAGE, AND LOWER SKIN DAMAGE.
- [SDR 2012FA0000805](https://openairdocs.org/sdr/2012FA0000805), Dec 7, 2012: LIFTER. SPALLED. SMALL METALLIC PARTICLES NOTED IN OIL FILTER. SHARP EDGES, NOTED ON PARTICLES UNDER MAGNIFIED VISUAL INSPECTION, INDICATED POSSIBILITY OF LIFTER FACE SPALLING. 
- [SDR CA121126014](https://openairdocs.org/sdr/CA121126014), Nov 12, 2012: PIVOT. CRACKED. (CAN) CRACK DISCOVERED ON THE TUBE OF THE BOW WHEEL PIVOT ASSY. CRACK FORMED CLOSE TO WHERE THE ARM ASSY MOUNTS TO THE BOW OF THE FLOAT.
- [SDR 2012FA0000684](https://openairdocs.org/sdr/2012FA0000684), Sep 13, 2012: BOLT. SHEARED. AFT HYDRAULIC ACTUATOR BOLT WAS FOUND TO BE SHEARED IN HALF AND DISPLACED FROM ITS DESIGNED LOCATION. THE FAILURE OCCURRED DURING SKI ACTUATION WHILE AIRBORNE, 
- [SDR 2012FA0000584](https://openairdocs.org/sdr/2012FA0000584), Aug 20, 2012: CIRCUIT BREAKER. FAILED. PILOT REPORTED VENT BLOWER NOT WORKING. DURING TROUBLESHOOTING, THE TECH FOUND THE CIRCUIT BREAKER AT FAULT. INSTALLED A NEW CIRCUIT BREAKER. OPS CHECK NORMAL.
- [SDR 2012FA0000585](https://openairdocs.org/sdr/2012FA0000585), Aug 20, 2012: CIRCUIT BREAKER. FAILED. PILOT REPORTED TAXI LIGHT NOT WORKING. DURING TROUBLESHOOTING THE TECHNICIAN FOUND THE CIRCUIT BREAKER AT FAULT. INSTALLED A NEW CIRCUIT BREAKER. OPS CHECK NORM
- [SDR 2012FA0000495](https://openairdocs.org/sdr/2012FA0000495), Jun 18, 2012: RETAINER. BACKED OUT. DURING TAXI, LT WHEEL OUTER TIRE RETAINER HARDWARE BACKED OUT AND PULLED THREADS FROM INNER WHEEL HUB, OUTER TIRE RETAINER DEPARTED AND ALLOWED TIRE AND TUBE TO
- [SDR 2012FA0000363](https://openairdocs.org/sdr/2012FA0000363), May 30, 2012: BLADE. GOUGED. NOTICED OIL ON NOSE COWL. PROP REMOVED TO REPLACE CRANKSHAFT O-RING. BUT DURING REMOVAL, IT WAS DISCOVERED THAT THE SEEPAGE WAS ACTUALLY COMING FROM A BLADE. SE
- [SDR CA120618005](https://openairdocs.org/sdr/CA120618005), May 26, 2012: CYLINDER. DAMAGED. (CAN) ALL CYLINDERS REPLACED DUE TO VALVE GUIDES BEING TOO TIGHT & BENDING THE PUSH RODS.
- [SDR 2012FA0000249](https://openairdocs.org/sdr/2012FA0000249), Apr 28, 2012: CIRCUIT BREAKER. FAILED. PILOT REPORTED STROBE LIGHTS TO BE INOPERATIVE. DURING TROUBLESHOOTING, FOUND THE STROBE LIGHT CIRCUIT BREAKER TO BE AT FAULT. INSTALLED A NEW STROBE LIGHT CIRC
- [SDR CA120620008](https://openairdocs.org/sdr/CA120620008), Mar 26, 2012: CRANKSHAFT. FAILED. (CAN) ACFT ENG SN 282949-R CRANKCASE FAILURE, 7TH STUD CRANKCASE, CRANKCASE FRETTING ON NR 2 & 3 INTERMEDIATE BEARING SADDLE THRU-BOLT PADS. WHEN THIS OCCURS, T
- [SDR BSYA20120215009](https://openairdocs.org/sdr/BSYA20120215009), Feb 15, 2012: CYLINDER HEAD. CRACKED. ON DESCENT INTO LWM, LEFT ENGINE STARTED BACK FIRING WHEN THROTTLE PULLED BACK. MAINTENANCE FOUND NR 1 AND NR 3 CYLINDER HEADS CRACKED. MAINTENANCE REPLACED NR 
- [SDR 2012FA0000184](https://openairdocs.org/sdr/2012FA0000184), Feb 10, 2012: HUB. CRACKED. PROP ASSY WAS SUBMITTED FOR O/H AND OIL LEAK FROM CRACK. CRACK EXTENDS FROM BLADE NR 1 PORTAL THROUGH THE CYL MOUNTING SURFACE.

All 446: https://openairdocs.org/engine/lycoming-io-520-series/reports.md

## STCs that may be installed (OpenAirDocs) (87, 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
- [STC SE01844SE](https://openairdocs.org/stc/SE01844SE): Installation of fuel control modification and associated hardware. Metal Innovations Inc. dba MII Aero. Lists IO-520-D
- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd. Lists IO-520-A
- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc. Lists IO-520-A
- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc. Lists IO-520-A
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp. Lists IO-520-A
- [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. Lists IO-520-A
- [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. Lists IO-520-A
- [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. Lists IO-520-A
- [STC SE09217SC](https://openairdocs.org/stc/SE09217SC): Installation of modified fuel injector nozzles. General Aviation Modifications Inc. Lists IO-520-A
- [STC SE94WE](https://openairdocs.org/stc/SE94WE): Installation of oil fitting(AN-823-5D) in rocker box cover. Airwolf Filter Corporation. Lists IO-520-A
- [STC SE0417CH](https://openairdocs.org/stc/SE0417CH): Turbo-normalization. Western Skyways Aircraft Modifications Inc. Lists IO-520-A
- [STC SE00115SE](https://openairdocs.org/stc/SE00115SE): Replaces Teledyne-Continental Part Number 646277 lifter bodies. B & B Aviation LLC. Lists IO-520-A
- [STC SE5784NM](https://openairdocs.org/stc/SE5784NM): Replacement of Teledyne Continental original camshaft. B & B Aviation LLC. Lists IO-520-A
- [STC SE5785NM](https://openairdocs.org/stc/SE5785NM): Replacement of Teledyne Continental original camshaft with P/N 32122-2. B & B Aviation LLC. Lists IO-520-B
- [STC SE03415CH](https://openairdocs.org/stc/SE03415CH): The turbo-normalization of Continental Motors engine models IO-520-A, -F, -J, and -L, TSIO-520-C, -G, -H, -M, and -R, and IO-550-F and L for installation into Cessna 206, 207 & 210 aircraft. DERS Group Svc LLC. Lists IO-520-A
- [STC SE70RM](https://openairdocs.org/stc/SE70RM): Installation of compressor bracket. Air Comm Corporation. Lists IO-520-A
- [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. Lists IO-520-A
- [STC SE09637SC](https://openairdocs.org/stc/SE09637SC): Remove existing rocker arm assemblies and install modify rocker arm assemblies. General Aviation Modifications Inc. Lists IO-520-A
- [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. Lists IO-520-D
- [STC SE8677SW](https://openairdocs.org/stc/SE8677SW): Installation of Garrett/Airesearch Model TE0659 turbocharger. Western Skyways, Inc. Lists IO-520-B
- [STC SE1186SW](https://openairdocs.org/stc/SE1186SW): Regrooving of pistons P/N 631475 or P/N 632585. Continental Motors, Inc. Lists IO-520-A
- [STC SE2340SW](https://openairdocs.org/stc/SE2340SW): Installation of modified cylinder assemblies, barrels, piston, and repaired crankcases. Continental Motors, Inc. Lists IO-520-A
- [STC SE34WE](https://openairdocs.org/stc/SE34WE): Installation of Electro-Coatings, Inc., piston rings on Continental pistons. Continental Motors, Inc. Lists IO-520-A
- [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. Lists IO-520-A
- [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. Lists IO-520-A
- [STC SE01791LA](https://openairdocs.org/stc/SE01791LA): Conversion of the subject engines to incorporate modification of crankcase, replacing crankshaft assembly, main bearings, rod assembly, piston, fuel system, and fuel system adjustment. COLORADO AIR PARTS. Lists IO-520-B
- [STC SE3330NM](https://openairdocs.org/stc/SE3330NM): Continental valve cover gasket. Real Gaskets Tennessee. Lists IO-520-A
- [STC SE10746SC-D](https://openairdocs.org/stc/SE10746SC-D): Conversion of Teledyne Continental Motors (TCM) models IO-520-B, -BA, -BB to RAM model IO-550-B-RA engine, or conversion of TCM models IO-520-C, -CB to RAM model IO-550-C-RA engine. RAM Aircraft Limited Partnership. Lists IO-520-B
- [STC SE993SO](https://openairdocs.org/stc/SE993SO): Installation of fuel line filters into the individual fuel injector lines in accordance with Beryl D Shannon Aviation Specialties, Inc. Installations Instructions BI 2500, approved May 24, 1976, or later FAA approved revision. D'Shannon Products Ltd. Lists IO-520-B
- [STC SE267CH](https://openairdocs.org/stc/SE267CH): Installation of Slick Model 6309 and 6313 magnetos. Champion Aerospace LLC. Lists IO-520-B
- [STC SE7325SW-D](https://openairdocs.org/stc/SE7325SW-D): Installation of crankcase modifications. RAM Aircraft Limited Partnership. Lists IO-520-A
- [STC SE09846SC](https://openairdocs.org/stc/SE09846SC): Installation of S539800M30 starter adapter springs. Aircraft Specialties Services Inc. Lists IO-520-A
- [STC SE443GL](https://openairdocs.org/stc/SE443GL): Incorporation of a fuel flow transducer. Shadin Avionics. Lists IO-520-A
- [STC SE487GL](https://openairdocs.org/stc/SE487GL): Installation of a fuel flow transducer. Shadin Company Inc. Lists IO-520-C
- [STC SE02881AT](https://openairdocs.org/stc/SE02881AT): STC for the conversion of Teledyne Continental Motors (TCM) Models IO-520-B, -BA or -BB to AvPower Model IO-550-B-AP which has the same ratings and limitations as TCM Model IO-550-B, or the conversion of TCM Model IO-520-C or -CB to AvPower Model IO-550-C-AP which has the same ratings and limitations as TCM Model IO-550-C. Conversion of the Models IO-520-B, -BA, or -BB to the Model IO-550-B-AP shall be performed in accordance with AvPower Report AP1004-3 Master Parts List, Revision B dated March 26, 2004 and AvPower Report AP1004-6 Assembly Instructions, Revision B dated March 26, 2004, or later FAA approved revisions. Conversion of the Models IO-520-C or -CB to the Model IO-550-C-AP shall be performed in accordance with AvPower Report AP1004-4 Master Parts List, Revision B dated March 26, 2004 and AvPower Report AP1004-7 Assembly Instructions, Revision B dated March 26, 2004, or later FAA approved revisions. AERO Aviation Company. Lists IO-520-B
- [STC SE1780NM](https://openairdocs.org/stc/SE1780NM): Installation of Precise Flight standby vacuum system (SVS III). Precise Flight Inc. Lists IO-520-A
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation. Lists IO-520-A
- [STC SE00392NY](https://openairdocs.org/stc/SE00392NY): Installation of 'second wind' auxiliary vacuum system intake manifold air adapter assembly. Must be performed with STC SA00391NY. Flight Life, Inc. Lists IO-520-BA
- [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
- [STC SE00215DE](https://openairdocs.org/stc/SE00215DE): Modification to Teledyne Continental engine for the installation of a turbonormalizing system. Engine Technologies Inc. Lists IO-520-D
- [STC SE09513SC](https://openairdocs.org/stc/SE09513SC): Installation and usage of Exxon 20W50 Multigrade aircraft engine oil conforming to Exxon Oil Formulation WS-3013. Exxon Company USA
- [STC SE09559SC](https://openairdocs.org/stc/SE09559SC): Installation of US Airparts roller rocker arm assemblies P/N US92E exhaust and US92I intake. US Airparts, Inc. Lists IO-520-A
- [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
- [STC SE5222NM](https://openairdocs.org/stc/SE5222NM): Modification to teledyne Continental engine for the installation of turbonormalizing system. Engine Technologies Inc. Lists IO-520-B
- [STC SE09289SC](https://openairdocs.org/stc/SE09289SC): Installation of modified fuel injector nozzles. General Aviation Modifications, Inc. Lists IO-520-B
- [STC SE00577NY](https://openairdocs.org/stc/SE00577NY): Installation of Canadian Aero Mfg. (C.A.M.) Oil Coolers. Canadian Aero Manufacturing. Lists IO-520-A
- [STC SE09319SC](https://openairdocs.org/stc/SE09319SC): Modify oil pan adding a new oil sump drain. Texas Skyways Inc
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation. Lists IO-520-A

All 87: https://openairdocs.org/engine/lycoming-io-520-series/stcs.md

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