# Continental TSIO-520-M - Type: Engine model (FAA registry) - Registry code: 17266 - Manufacturer (registry): CONT MOTOR - Model: TSIO-520-M - Engine type: Reciprocating - Power: 310 hp - Data sheet: [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs) - Holder: Continental Aerospace Technologies, Inc. - Installed in: 60 registered aircraft - Page: https://openairdocs.org/engine/continental-tsio-520-m Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2023-17-04](https://openairdocs.org/ad/2023-17-04): Reciprocating Engine Oil System · F & M Enterprises' Model C6LC, C6LC-S or C6LC-L oil filter… (Stratus Tool Technologies STC SE09356SC or 2 others). Effective Oct 26, 2023 - [AD 2023-05-16](https://openairdocs.org/ad/2023-05-16): Reciprocating Engine Power Section · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 147 more. Effective Mar 15, 2023 - [AD 2023-02-12](https://openairdocs.org/ad/2023-02-12): Engine Air Intake System · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 127 more. Effective Feb 17, 2023 - [AD 2022-16-03](https://openairdocs.org/ad/2022-16-03): Engine (RECIPROCATING) · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-F and 236 more. Effective Aug 15, 2022 - [AD 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 2010-07-08](https://openairdocs.org/ad/2010-07-08): Turbochargers · Kelly Aerospace Energy Systems HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 137 more. Effective Apr 19, 2010 - [AD 2009-19-07](https://openairdocs.org/ad/2009-19-07): EQ3 cylinders · Continental Motors IO-470-C, IO-470-D, IO-470-E and 72 more. Effective Oct 7, 2009 - [AD 2007-04-19 R1](https://openairdocs.org/ad/2007-04-19-R1): SAP cylinder assemblies · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 314 more. Effective May 7, 2007 - [AD 2004-08-10](https://openairdocs.org/ad/2004-08-10): Serial-numbered (SN) cylinders · Modify Teledyne Continental TSIO-520-NB engine (RAM Aircraft Limited Partnership STC SE09104SC or 4 others). Effective May 5, 2004 - [AD 2000-23-21](https://openairdocs.org/ad/2000-23-21): Crankshaft · Continental Motors IO-360-A, IO-360-AB, IO-360-B and 164 more. Effective Dec 12, 2000 - [AD 99-19-01](https://openairdocs.org/ad/99-19-01): No. 2 and No. 5 Crankshaft Inspections · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 127 more. Effective Sep 30, 1999 - [AD 97-26-17](https://openairdocs.org/ad/97-26-17): Crankshaft · Continental Motors IO-360-A, IO-360-AB, IO-360-B and 90 more. Effective Jan 23, 1998 - [AD 96-12-22](https://openairdocs.org/ad/96-12-22): Full Flow Engine Oil Adapter · Bellanca CH-300 Pacemaker, 120, 140 and 361 more. Effective Jul 31, 1996 - [AD 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 80-22-05](https://openairdocs.org/ad/80-22-05): Crankshaft Front Oil Seal · Continental Motors TSIO-520-M, TSIO-520-P and TSIO-520-R. Effective Oct 24, 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 98-01-08](https://openairdocs.org/ad/98-01-08): Exhaust Roller Rocker Arm · Roller rocker arm P/N PE 92I intake and PE92E exhaust (Performance Engineering STC SE8594SW) Historical (superseded or no longer in force): - [AD 2023-04-08](https://openairdocs.org/ad/2023-04-08) (historical): Reciprocating Engine Power Section · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 141 more. Effective Feb 23, 2023 - [AD 2009-24-52](https://openairdocs.org/ad/2009-24-52) (historical): Hydraulic lifters · Continental Motors FSO-470-A, GIO-470-A, GTSIO-520-C and 192 more - [AD 2009-24-51](https://openairdocs.org/ad/2009-24-51) (historical): Hydraulic lifters · Teledyne Continental Motors FSO-470-A, GIO-470-A, GTSIO-520-C and 156 more - [AD 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 (60, first 50) - [N102JJ](https://openairdocs.org/aircraft/N102JJ): [Grose Christopher E](https://openairdocs.org/faa-owner/GROSE%20CHRISTOPHER%20E), [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio), built 1966, S/N T210-0123 - [N1031V](https://openairdocs.org/aircraft/N1031V): [Intelinair Geospatial LLC](https://openairdocs.org/faa-owner/INTELINAIR%20GEOSPATIAL%20LLC), [Indianapolis, IN](https://openairdocs.org/faa-place/IN/Indianapolis), built 1974, S/N U20602409 - [N103RC](https://openairdocs.org/aircraft/N103RC): [Sonrise Aviation LLC](https://openairdocs.org/faa-owner/SONRISE%20AVIATION%20LLC), [Portland, IN](https://openairdocs.org/faa-place/IN/Portland), built 1977, S/N 4040108 - [N111NC](https://openairdocs.org/aircraft/N111NC): [Daxair Aviation LLC](https://openairdocs.org/faa-owner/DAXAIR%20AVIATION%20LLC), [Scottsdale, AZ](https://openairdocs.org/faa-place/AZ/Scottsdale), built 1975, S/N 310R0182 - [N115EL](https://openairdocs.org/aircraft/N115EL): [182 Flight Corp](https://openairdocs.org/faa-owner/182%20FLIGHT%20CORP), [Bronx, NY](https://openairdocs.org/faa-place/NY/Bronx), built 1984, S/N U20606814 - [N1301L](https://openairdocs.org/aircraft/N1301L): [Fox Aircraft LLC](https://openairdocs.org/faa-owner/FOX%20AIRCRAFT%20LLC), [Bethel, AK](https://openairdocs.org/faa-place/AK/Bethel), built 1980, S/N 20700641 - [N14NN](https://openairdocs.org/aircraft/N14NN): [Ams Aviation LLC](https://openairdocs.org/faa-owner/AMS%20AVIATION%20LLC), [South Bend, IN](https://openairdocs.org/faa-place/IN/South%20Bend), built 1980, S/N U20605374 - [N168SA](https://openairdocs.org/aircraft/N168SA): [Bruchid Snodgrass LLC](https://openairdocs.org/faa-owner/BRUCHID%20SNODGRASS%20LLC), [Reno, NV](https://openairdocs.org/faa-place/NV/Reno), built 1981, S/N U20606073 - [N1747B](https://openairdocs.org/aircraft/N1747B): [Dgpiper](https://openairdocs.org/faa-owner/DGPIPER), [Sheridan, WY](https://openairdocs.org/faa-place/WY/Sheridan), built 1980, S/N 20700666 - [N2064M](https://openairdocs.org/aircraft/N2064M): [Duboy Ventures LLC](https://openairdocs.org/faa-owner/DUBOY%20VENTURES%20LLC), [Northbrook, IL](https://openairdocs.org/faa-place/IL/Northbrook), built 1981, S/N U20606361 - [N206PD](https://openairdocs.org/aircraft/N206PD): [Rockwell Collins Inc](https://openairdocs.org/faa-owner/ROCKWELL%20COLLINS%20INC), [Cedar Rapids, IA](https://openairdocs.org/faa-place/IA/Cedar%20Rapids), built 1977, S/N 676 - [N206WT](https://openairdocs.org/aircraft/N206WT): [Severe Clear Aviation LLC](https://openairdocs.org/faa-owner/SEVERE%20CLEAR%20AVIATION%20LLC), [Hagerstown, MD](https://openairdocs.org/faa-place/MD/Hagerstown), built 1976, S/N U20603613 - [N207BH](https://openairdocs.org/aircraft/N207BH): [Elevation Squad Inc](https://openairdocs.org/faa-owner/ELEVATION%20SQUAD%20INC), [York, PA](https://openairdocs.org/faa-place/PA/York), built 1982, S/N 20700735 - [N207DA](https://openairdocs.org/aircraft/N207DA): [Kolb Austin](https://openairdocs.org/faa-owner/KOLB%20AUSTIN), [Phoenixville, PA](https://openairdocs.org/faa-place/PA/Phoenixville), S/N 20700607 - [N207DL](https://openairdocs.org/aircraft/N207DL): built 1981, S/N 20700712 - [N207GH](https://openairdocs.org/aircraft/N207GH): [Bridgeview Aviation LLC](https://openairdocs.org/faa-owner/BRIDGEVIEW%20AVIATION%20LLC), [Southfield, MI](https://openairdocs.org/faa-place/MI/Southfield), S/N 20700709 - [N207GR](https://openairdocs.org/aircraft/N207GR): [Blue Sky Telluride LLC](https://openairdocs.org/faa-owner/BLUE%20SKY%20TELLURIDE%20LLC), [Telluride, CO](https://openairdocs.org/faa-place/CO/Telluride), built 1979, S/N 20700563 - [N207SR](https://openairdocs.org/aircraft/N207SR): [Jaars Inc](https://openairdocs.org/faa-owner/JAARS%20INC), [Waxhaw, NC](https://openairdocs.org/faa-place/NC/Waxhaw), S/N 20700623 - [N208WP](https://openairdocs.org/aircraft/N208WP): [Cassidy Ryan H](https://openairdocs.org/faa-owner/CASSIDY%20RYAN%20H), [Seattle, WA](https://openairdocs.org/faa-place/WA/Seattle), built 1980, S/N U20605836 - [N232MT](https://openairdocs.org/aircraft/N232MT): [Air Force Life Cycle Management Center](https://openairdocs.org/faa-owner/AIR%20FORCE%20LIFE%20CYCLE%20MANAGEMENT%20CENTER), [Lexington, MA](https://openairdocs.org/faa-place/MA/Lexington), built 1981, S/N U20606200 - [N247CB](https://openairdocs.org/aircraft/N247CB): [Dream Machine Leasing LLC](https://openairdocs.org/faa-owner/DREAM%20MACHINE%20LEASING%20LLC), [Glenbrook, NV](https://openairdocs.org/faa-place/NV/Glenbrook), built 1981, S/N U20606194 - [N262CA](https://openairdocs.org/aircraft/N262CA): [Compass Aviation Inc](https://openairdocs.org/faa-owner/COMPASS%20AVIATION%20INC), [Shelby, NC](https://openairdocs.org/faa-place/NC/Shelby), built 1981, S/N U20606094 - [N295FA](https://openairdocs.org/aircraft/N295FA): [Stationair Amphib LLC](https://openairdocs.org/faa-owner/STATIONAIR%20AMPHIB%20LLC), [Jefferson City, MO](https://openairdocs.org/faa-place/MO/Jefferson%20City), built 1980, S/N U20605482 - [N29PM](https://openairdocs.org/aircraft/N29PM): [Ally Mohamed Yacoob](https://openairdocs.org/faa-owner/ALLY%20MOHAMED%20YACOOB), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), S/N U20605769 - [N307JH](https://openairdocs.org/aircraft/N307JH): [Roundy Joseph](https://openairdocs.org/faa-owner/ROUNDY%20JOSEPH), [Three Forks, MT](https://openairdocs.org/faa-place/MT/Three%20Forks), built 1980, S/N 207-00584 - [N384MG](https://openairdocs.org/aircraft/N384MG): [Missionary Air Group Inc](https://openairdocs.org/faa-owner/MISSIONARY%20AIR%20GROUP%20INC), [Burlington, NC](https://openairdocs.org/faa-place/NC/Burlington), built 1979, S/N U20605272 - [N422RK](https://openairdocs.org/aircraft/N422RK): [Gulf Coast Aerial Mapping Co Inc](https://openairdocs.org/faa-owner/GULF%20COAST%20AERIAL%20MAPPING%20CO%20INC), [Gonzales, LA](https://openairdocs.org/faa-place/LA/Gonzales), built 1979, S/N U20605347 - [N44FA](https://openairdocs.org/aircraft/N44FA): [Temple Craig A](https://openairdocs.org/faa-owner/TEMPLE%20CRAIG%20A), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), built 1980, S/N 20700659 - [N4651T](https://openairdocs.org/aircraft/N4651T): [United Indian Missions Inc DBA](https://openairdocs.org/faa-owner/UNITED%20INDIAN%20MISSIONS%20INC%20DBA), [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson), built 1979, S/N U20605255 - [N5119X](https://openairdocs.org/aircraft/N5119X): [Mission Aviation Fellowship](https://openairdocs.org/faa-owner/MISSION%20AVIATION%20FELLOWSHIP), [Nampa, ID](https://openairdocs.org/faa-place/ID/Nampa), built 1980, S/N U20605571 - [N51SA](https://openairdocs.org/aircraft/N51SA): [Redtail Partners LLC](https://openairdocs.org/faa-owner/REDTAIL%20PARTNERS%20LLC), [Moab, UT](https://openairdocs.org/faa-place/UT/Moab), built 1981, S/N 20700699 - [N54KD](https://openairdocs.org/aircraft/N54KD): [Sawtooth Flying Service Inc](https://openairdocs.org/faa-owner/SAWTOOTH%20FLYING%20SERVICE%20INC), [Mccall, ID](https://openairdocs.org/faa-place/ID/Mccall), built 1981, S/N U20606181 - [N589JS](https://openairdocs.org/aircraft/N589JS): [Wings West Consulting LLC](https://openairdocs.org/faa-owner/WINGS%20WEST%20CONSULTING%20LLC), [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa), built 1980, S/N U20606384 - [N602YM](https://openairdocs.org/aircraft/N602YM): [Sawtooth Aviation Resources LLC](https://openairdocs.org/faa-owner/SAWTOOTH%20AVIATION%20RESOURCES%20LLC), [Ketchum, ID](https://openairdocs.org/faa-place/ID/Ketchum), built 1981, S/N U20606231 - [N66GA](https://openairdocs.org/aircraft/N66GA): [Aircraft Guaranty Corp Trustee](https://openairdocs.org/faa-owner/AIRCRAFT%20GUARANTY%20CORP%20TRUSTEE), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 1980, S/N 20700657 - [N73408](https://openairdocs.org/aircraft/N73408): [Shade Eric L](https://openairdocs.org/faa-owner/SHADE%20ERIC%20L), [Dillingham, AK](https://openairdocs.org/faa-place/AK/Dillingham), built 1979, S/N 20700586 - [N73467](https://openairdocs.org/aircraft/N73467): [Ryan Air Inc](https://openairdocs.org/faa-owner/RYAN%20AIR%20INC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1980, S/N 20700594 - [N73612](https://openairdocs.org/aircraft/N73612): [American Aviation Inc](https://openairdocs.org/faa-owner/AMERICAN%20AVIATION%20INC), [Page, AZ](https://openairdocs.org/faa-place/AZ/Page), built 1980, S/N 20700608 - [N73727](https://openairdocs.org/aircraft/N73727): [Redtail Partners LLC](https://openairdocs.org/faa-owner/REDTAIL%20PARTNERS%20LLC), [Moab, UT](https://openairdocs.org/faa-place/UT/Moab), built 1980, S/N 20700617 - [N73742](https://openairdocs.org/aircraft/N73742): [Adams Bruce M](https://openairdocs.org/faa-owner/ADAMS%20BRUCE%20M), [Santa Fe, NM](https://openairdocs.org/faa-place/NM/Santa%20Fe), built 1980, S/N 20700619 - [N73789](https://openairdocs.org/aircraft/N73789): [Ryan Air Inc](https://openairdocs.org/faa-owner/RYAN%20AIR%20INC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1980, S/N 20700629 - [N75773](https://openairdocs.org/aircraft/N75773): [Dena'Ina Leasing Agency LLC](https://openairdocs.org/faa-owner/DENA'INA%20LEASING%20AGENCY%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1980, S/N 20700643 - [N75870](https://openairdocs.org/aircraft/N75870): [Westwind Aviation Inc](https://openairdocs.org/faa-owner/WESTWIND%20AVIATION%20INC), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 1980, S/N 20700648 - [N806HU](https://openairdocs.org/aircraft/N806HU): [Astra Engineering LLC](https://openairdocs.org/faa-owner/ASTRA%20ENGINEERING%20LLC), [Twin Falls, ID](https://openairdocs.org/faa-place/ID/Twin%20Falls), built 1979, S/N U20605215 - [N813SW](https://openairdocs.org/aircraft/N813SW): [Wolff Scott](https://openairdocs.org/faa-owner/WOLFF%20SCOTT), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 1979, S/N U20605296 - [N8281Z](https://openairdocs.org/aircraft/N8281Z): [Spearfish Aviation Inc](https://openairdocs.org/faa-owner/SPEARFISH%20AVIATION%20INC), [Summerset, SD](https://openairdocs.org/faa-place/SD/Summerset), S/N U20604116 - [N8482Q](https://openairdocs.org/aircraft/N8482Q): [Gregg Flying Service Inc](https://openairdocs.org/faa-owner/GREGG%20FLYING%20SERVICE%20INC), [Durango, CO](https://openairdocs.org/faa-place/CO/Durango), built 1976, S/N U20603340 - [N859AL](https://openairdocs.org/aircraft/N859AL): [Ams Aviation LLC](https://openairdocs.org/faa-owner/AMS%20AVIATION%20LLC), [South Bend, IN](https://openairdocs.org/faa-place/IN/South%20Bend), built 1979, S/N U206-04888 - [N8898Q](https://openairdocs.org/aircraft/N8898Q): [Northrop Grumman Systems Corp](https://openairdocs.org/faa-owner/NORTHROP%20GRUMMAN%20SYSTEMS%20CORP), [El Segundo, CA](https://openairdocs.org/faa-place/CA/El%20Segundo), built 1976, S/N U20603561 - [N911E](https://openairdocs.org/aircraft/N911E): [Weiss Elliott](https://openairdocs.org/faa-owner/WEISS%20ELLIOTT), [Fresno, TX](https://openairdocs.org/faa-place/TX/Fresno), S/N 20700747 All 60: https://openairdocs.org/engine/continental-tsio-520-m/aircraft.md ## NTSB investigations (18) 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 WPR25LA107](https://openairdocs.org/ntsb/WPR25LA107), Feb 7, 2025: Cessna T207A (N9317M), Tusayan, AZ, substantial damage. Probable cause: An encounter with wind gusts, which resulted in a loss of control and a collapse of the nose landing gear. - [NTSB WPR22FA303](https://openairdocs.org/ntsb/WPR22FA303), Aug 13, 2022: Cessna T207A (N9582M), Page, AZ, substantial damage, 2 fatal. Probable cause: The total loss of engine power for undetermined reasons during low altitude cruise flight, which resulted in a water ditching. Contributing to the severity of the accident was the pilot’s failure to… - [NTSB CEN18LA032](https://openairdocs.org/ntsb/CEN18LA032), Nov 15, 2017: Cessna T207A (N9825M), Rock Springs, WY, substantial damage. Probable cause: The pilot's improper in-flight fuel management and reliance on a faulty fuel gauge, which resulted in fuel starvation during approach for landing, and his failure to follow the emergency checklist… - [NTSB ANC11FA091](https://openairdocs.org/ntsb/ANC11FA091), Sep 2, 2011: Cessna T207A (N73789), Nightmute, AK, substantial damage, 1 fatal. Probable cause: The failure of the pilot of the other airplane to maintain adequate clearance while performing an unexpected and unannounced abrupt maneuver, resulting in a midair collision between the two airplanes. - [NTSB WPR11FA232](https://openairdocs.org/ntsb/WPR11FA232), May 23, 2011: Cessna T207A (N803AN), Monument Valley, UT, substantial damage. Probable cause: The pilot's decision to initiate a go-around after a bounced landing at an airport where go-arounds were not advised and his failure to maintain adequate airspeed during the go-around. - [NTSB LAX06CA194](https://openairdocs.org/ntsb/LAX06CA194), Jun 2, 2006: Cessna T207A (N9962M), Jean, NV, substantial damage. Probable cause: the pilot's failure to obtain and maintain an adequate airspeed, which resulted in a stall/mush. A factor in the accident was the high density altitude. - [NTSB LAX03LA164](https://openairdocs.org/ntsb/LAX03LA164), May 26, 2003: Cessna T207A (N9317M), Page, AZ, substantial damage. Probable cause: a loss of engine power due to a oil starvation induced catastrophic internal failure of the engine caused by the rotation of the number 2 cylinder main bearing. This narrative was modified on… - [NTSB SEA03FA059](https://openairdocs.org/ntsb/SEA03FA059), Apr 9, 2003: Cessna T207 A (N9785M), Merlin, OR, destroyed, 2 fatal. Probable cause: The pilot's failure to maintain clearance from mountainous terrain while in cruise flight. Factors include low ceilings and mountainous terrain. - [NTSB FTW98FA157](https://openairdocs.org/ntsb/FTW98FA157), Mar 24, 1998: Cessna T207A (N73780), Monument Valley, UT, substantial damage. Probable cause: The engine's total power loss due to the induction air ducting separating because of inadequate maintenance by company personnel. Factors were the failure of the manufacturer to provide non-standard… - [NTSB SEA97LA114](https://openairdocs.org/ntsb/SEA97LA114), May 16, 1997: Cessna T207A (N51SA), Monument Valley, UT, substantial damage. Probable cause: A horse entering the runway after the aircraft touched down. Factors included no fence installed around part of the airstrip, and remedial action not possible. - [NTSB ANC96LA035](https://openairdocs.org/ntsb/ANC96LA035), Mar 17, 1996: Cessna 206 (N942SA), Willow, AK, substantial damage. Probable cause: the pilot's selection of unsuitable terrain for landing. Snow covered terrain that concealed uneven terrain was a factor in the accident. - [NTSB ANC95LA025](https://openairdocs.org/ntsb/ANC95LA025), Jan 4, 1995: Cessna 207 (N73467), Akiak, AK, substantial damage. Probable cause: A FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE. ICY RUNWAY CONDITIONS AND A LACK OF A LOCAL NOTAM TO REPORT THE RUNWAY CONDITION BY LOCAL MAINTENANCE PERSONNEL WERE FACTORS IN… - [NTSB ANC86LA143](https://openairdocs.org/ntsb/ANC86LA143), Sep 4, 1986: Cessna TU206A (N942SA), Talkeetna, AK, substantial damage - [NTSB SEA86FA215](https://openairdocs.org/ntsb/SEA86FA215), Aug 21, 1986: Cessna T207A (N73569), Frenchglen, OR, destroyed, 6 fatal - [NTSB DEN84LA299](https://openairdocs.org/ntsb/DEN84LA299), Sep 25, 1984: Cessna T207A (N75870), Mexican Hat, UT, substantial damage - [NTSB ANC83LA149](https://openairdocs.org/ntsb/ANC83LA149), Aug 19, 1983: Cessna T-207A (N73789), Atmautluak, AK, substantial damage - [NTSB MIA83LA150](https://openairdocs.org/ntsb/MIA83LA150), May 31, 1983: Cessna 207 (N75773), Sebring, FL, substantial damage - [NTSB LAX81FUJ60](https://openairdocs.org/ntsb/LAX81FUJ60), May 6, 1981: Cessna T207A (N73363), Chinle, AZ, substantial damage ## FAA accident and incident reports (33) 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 20250206000899A](https://openairdocs.org/incident/20250206000899A), Feb 6, 2025: Cessna T207A (N9317M), Grand Canyon, AZ, Substantial damage. On February 6, 2025, Cessna 207 [privacy data omitted] experienced a nose gear collapse during takeoff from Grand Canyon (gcn) airport. The aircraft skidded to… - [Incident 20250103013429I](https://openairdocs.org/incident/20250103013429I), Jan 3, 2025: Cessna TU206G (N916WC), Royse City, TX, Minor damage. On January 03, 2025, at approximately 1030 central standard time the pilot received [privacy data omitted] fresh out of maintenance from the repair station.… - [Accident 20220813008079A](https://openairdocs.org/incident/20220813008079A), Aug 13, 2022: Cessna T207A (N9582M), Page, AZ, Substantial damage, 2 fatal. On August 13, 2022, at approximately 2219 UTC (1619 MST), a Cessna/textron aviation CE-T207A, operated under part 91.147/136 air tour was part of a five… - [Accident 20171115018779A](https://openairdocs.org/incident/20171115018779A), Nov 15, 2017: Cessna T207A (N9825M), Rock Springs, WY, Substantial damage. On 11/15/2017 at 1515 MST, N9825M, a Cessna T207A airplane, impacted the grounds two miles west of the Rock Springs WY airport (krks). There were four persons… - [Incident 20170220005689I](https://openairdocs.org/incident/20170220005689I), Feb 20, 2017: Cessna T207A (N1301L), Gustavus, AK, Minor damage. Description: Pilot of Cessna N1301L taxied from the Gustavus Alaska airport passenger terminal to runway 29 vie taxiway alpha. When the aircraft was about 100… - [Accident 20110902021682A](https://openairdocs.org/incident/20110902021682A), Sep 2, 2011: Cessna T207A (N73789), Nightmute, AK, Substantial damage. The pilot in commands (PIC) of CE-207 N73789, and CE-208 N207DR, mutually agreed to operate as a flight of two from the vicinity of toksook bay, Alaska, to… - [Incident 20110701013569I](https://openairdocs.org/incident/20110701013569I), Jul 1, 2011: Cessna TU206G (N168SA), Medford, OR, Minor damage. Part 91 flt departed redding, CA at 1900, arrived Medford, OR at 2000 (approximate) wx and runway were not a factor. Pilot states that he was making a straight… - [Accident 20110523008659A](https://openairdocs.org/incident/20110523008659A), May 23, 2011: Cessna T207A (N803AN), Monument Valley, UT, Destroyed. Grand canyon airlines operating a CE-207, into Monument Valley (UT25) airport landed hard in windy and gusty cross wind conditions. The pilot elected to go… - [Incident 20100531036189I](https://openairdocs.org/incident/20100531036189I), May 31, 2010: Cessna TU206G (N6508Z), Camden, AL, Minor damage. Pilot attempted takeoff run on the Alabama river in Cessna 206. Pilot noticed that he could not get aircraft airborne and aborted the takeoff run. Engine was… - [Incident 20090112000639I](https://openairdocs.org/incident/20090112000639I), Jan 12, 2009: Cessna TU206G (N422RK), Baton Rouge, LA, Minor damage. Cessna model 206-G taxied off the taxi way into the sod. The aircraft propeller was damaged. No injuries. The airport is under construction and the pilot was… - [Incident 20071002830489I](https://openairdocs.org/incident/20071002830489I), Oct 2, 2007: Cessna T207A (N73612), Rock Springs, WY, Minor damage. (-23) During landing pilot lost control of aircraft just before touch down and landed hard. - [Incident 20070406007339I](https://openairdocs.org/incident/20070406007339I), Apr 6, 2007: Cessna T207A (N803AN), Prescott, AZ. (-23) On April 6, 2007, the pilot [privacy data omitted] flew N803AN on a training flight with [privacy data omitted]. On climb, aircraft lost elevator trim… - [Accident 20060602008489A](https://openairdocs.org/incident/20060602008489A), Jun 2, 2006: Cessna T207A (N9962M), Jean, NV, Substantial damage. (-23) Aircraft departed rwy 20R at the Jean, NV airport (017) and upon reaching 300-400 feet, the pilot stated that his airspeed went from 85 KTS to 60 KTS.… - [Incident 20050801016239I](https://openairdocs.org/incident/20050801016239I), Aug 1, 2005: Cessna T207A (N75773), Anchorage, AK, Minor damage. (-23) While executing a touch and go, pilot veered off the south side of runway 25 between taxiways foxtrot and echo, striking several runway edge lights and… - [Incident 20040630016499I](https://openairdocs.org/incident/20040630016499I), Jun 30, 2004: Cessna 207A (N44FA), Agana, Guam, Minor damage. (-23) On June 30, 2004 at approximately 1155Z, while taxiing to parking the pilot turned off his taxi light to follow the company marshaller. The aircraft… - [Accident 20030526021649A](https://openairdocs.org/incident/20030526021649A), May 26, 2003: Cessna T207A (N9317M), Page, AZ, Substantial damage. (-23) Following a normal start and pre-takeoff run up, the aircraft departed pga for a part 91 repositioning flight to gcn. According to the pilot's statement,… - [Accident 20030409004019A](https://openairdocs.org/incident/20030409004019A), Apr 9, 2003: Cessna T207A (N9785M), Merlin, OR, Destroyed, 2 fatal. (-23) Metars 1-1/4SM, br, FEW001, SCT009, OVC019, ntaps indicates that aircraft was on direct track from oth to grants pass, Oregon. Last radar contact showed… - [Incident 20000517017079I](https://openairdocs.org/incident/20000517017079I), May 17, 2000: Cessna T207A (N9482M), Monument Valley, UT, Minor damage. (-23)Whiel parking at monumment valley airport, under direction, pilot added power, which resulted in CE-207 N9482M, slidding into N1307A that was already… - [Incident 19990218011289I](https://openairdocs.org/incident/19990218011289I), Feb 18, 1999: Cessna T207A (N73612), Boulder City, NV. Aircraft wasenroute to gcn from 61B performing a FAR 135 tour flight, when engine oil pressure and engine power was loss (engine quit). The engine will be torn… - [Incident 19981230042469I](https://openairdocs.org/incident/19981230042469I), Dec 30, 1998: Cessna 207A (N73467), Chevak, AK, Minor damage. (-5) Incident #1AL39010101 aircraft N73467 struck a runway light while being marshelled, by company personel, clear of the ramp area at Chevak, Alaska. N73467… - [Accident 19980324004149A](https://openairdocs.org/incident/19980324004149A), Mar 24, 1998: Cessna T207A (N73780), Monument Valley, UT, Substantial damage. Lost power on climbout. Tried restart instead seeing about landing. Impact high speed causing greator damage. (.4)the takeoff for the sightseeing flight seemed… - [Accident 19970516010939A](https://openairdocs.org/incident/19970516010939A), May 16, 1997: Cessna T207A (N51SA), Monument, UT, Substantial damage. Aircraft struck a horse on landing at private strip. - [Accident 19960318004249A](https://openairdocs.org/incident/19960318004249A), Mar 18, 1996: Cessna TU206A (N942SA), Willow, AK, Substantial damage. Ski equipped plane landed on frozen lake. Nose ski broke thru snow crust. Hit rough ground. Sheared off. Nosed over. - [Accident 19950104000159A](https://openairdocs.org/incident/19950104000159A), Jan 4, 1995: Cessna 207A (N73467), Akiak, AK, Substantial damage. Slid off icy runway on landing. Braking action nil. Airport unattended. Contract person failed issue NOTAM. - [Incident 19870418030289I](https://openairdocs.org/incident/19870418030289I), Apr 18, 1987: Cessna T207A (N73320), Las Vegas, NV, Minor damage. The aircraft struck the REIL box while taxiing onto the runway. Pilots vision blocked by cowling and other aircraft - [Accident 19860904045239A](https://openairdocs.org/incident/19860904045239A), Sep 4, 1986: Cessna TU206A (N942SA), Talkeetna, AK, Substantial damage. The pilot failed to check wheels up for a water landing. The floatplane was substantially damaged. - [Incident 19850714074359I](https://openairdocs.org/incident/19850714074359I), Jul 14, 1985: Cessna TU206A (N942SA), Talkeetna, AK, Minor damage. Failed to retract gear after takeoff. Landed on lake with gear down and flipped over. Float equipped aircraft. - [Accident 19841219067919A](https://openairdocs.org/incident/19841219067919A), Dec 19, 1984: Cessna STC402CESSNA (N51SA), Tonopah, NV, Substantial damage. One engine quit, forced descent into icing conditions, emergency landing. Bacteria clogged filter, lack of prist. - [Accident 19840925051269A](https://openairdocs.org/incident/19840925051269A), Sep 25, 1984: Cessna T207A (N75870), Mexican Hat, UT, Substantial damage. Applied full throttle after descending too low on final. No power noted although gauges in green. Struck embankment - [Accident 19830819043469A](https://openairdocs.org/incident/19830819043469A), Aug 19, 1983: Cessna T207A (N73789), Atmautlauk, AK, Substantial damage. Pilots seat slid back on takeoff. Control was lost. Veered off runway into a pond. Seat not fastened prior takeoff. - [Accident 19830531021979A](https://openairdocs.org/incident/19830531021979A), May 31, 1983: Cessna T207A (N75773), Sebring, FL, Substantial damage. Aircraft made landing with nose wheel and door missing, also only one seat in aircraft and marijuana residue. - [Incident 19820412018919I](https://openairdocs.org/incident/19820412018919I), Apr 12, 1982: Cessna 206CESSNA (N8482Q), Denver, CO, Minor damage. Wind blew aircraft up onto its' right wing & nose while taxiing. Aircraft then settled back to normal attitude. - [Accident 19810506022999A](https://openairdocs.org/incident/19810506022999A), May 6, 1981: Cessna T207 (N73363), Chinle, AZ, Substantial damage. Made early climbing turn on night takeoff from unlighted runway. Struck rising terrain off side of runway. ## Service difficulty reports (118, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2023FA0000363](https://openairdocs.org/sdr/2023FA0000363), Jun 7, 2023: POWERPLANT. OIL STARVATION. PILOT NOTICE LOSS OF POWER IN CRUISE FLIGHT, RETURNING TO AIRPORT DEBRIS AND SMOKE WAS NOTED EXITING THE ENGINE COWL. OFF AIRPORT LANDING WITHOUT INCIDENT. FOUN - [SDR WIWA2020F00000](https://openairdocs.org/sdr/WIWA2020F00000), Sep 16, 2020: OIL SYSTEM. LEAKING. THE PILOTS REPORTED THAT HE SET TAKEOFF POWER, ENGINE PARAMETERS READ NORMAL AND UPON REACHING 40 KNOTS HE SAW A ROLL BACK. HE EXECUTED AN ABORTED TAKEOFF AND H - [SDR 2020FA0000391](https://openairdocs.org/sdr/2020FA0000391), Sep 2, 2020: INTAKE ROCKER. BROKEN. ROCKER ARM FAILED CAUSING ENGINE ROUGHNESS. - [SDR 2020FA0000392](https://openairdocs.org/sdr/2020FA0000392), Sep 2, 2020: THRU BOLT. LOOSE. 125 HRS AFTER MAJOR REPAIR BY RAM AIRCRAFT FRONT TWO THROUGH BOLTS FOUND BELOW MINIMUM TORQUE AND LEAKING OIL. - [SDR 2019FA0000266](https://openairdocs.org/sdr/2019FA0000266), Aug 19, 2019: CAMSHAFT. SPALLED. FOUND EXCESSIVE AMOUNT OF FERROUS METAL IN OIL FILTER DURING NORMAL MAINTENANCE. UPON INSPECTION FOUND 5/6 CAM LOB SPALLED. THIS IS THE SECOND WORN CAM IN THIS - [SDR CA190402009](https://openairdocs.org/sdr/CA190402009), Mar 28, 2019: BEARING RACE. CORRODED. (CAN) ENGINE COULD NOT ATTAIN TAKE OFF RPM. PROPELLER WAS REMOVED AND BENCH TESTED. IT WAS FOUND THAT IT WOULD NOT CYCLE INTO FINE PITCH. UPON DISASSEMBLY IT WA - [SDR 2017FA0000401](https://openairdocs.org/sdr/2017FA0000401), Feb 27, 2017: POST. CRACKED. DURING LOWER FWD DOOR POST AND STRUT FITTING INSPECTION REQUIRED BY SERVICE BULLETIN SEB935R1, FOUND A CRACK IN RADIUS OF CORNER ADJACENT TO AND DISAPPEARING UN - [SDR 2015FA0000000](https://openairdocs.org/sdr/2015FA0000000), Jan 5, 2015: CYLINDER. CRACKED. DURING ANNUAL INSPECTION, 5 OUT OF 6 CYLINDERS APPEARED TO BE CRACKED AT THE UPPER SPARK PLUG HOLE. - [SDR CA140714002](https://openairdocs.org/sdr/CA140714002), Jul 11, 2014: OIL SYSTEM. MALFUNCTIONED. (CAN) ENGINE REMOVED FOR TEARDOWN AND INSPECTION DUE PERSISTENT LOW OIL PRESSURE, HIGH OIL TEMPERATURE. AIRCRAFT REMOVED FROM SERVICE. - [SDR CA130809002](https://openairdocs.org/sdr/CA130809002), Aug 9, 2013: SPAR. CRACKED. (CAN) WHILE COMPLYING WITH SB SEB85-7, REV 3, TO REPLACE RT ELEVATOR TRIM TAB AND LT & RT T/E WEDGES DUE TO THE FOAM CORES WERE SATURATED, IT WAS DISCOVERED THA - [SDR 2012FA0000306](https://openairdocs.org/sdr/2012FA0000306), Apr 23, 2012: BULKHEAD. CRACKED. AFT BULKHEAD INSPECTED IAW AD 72-07-09. FOUND A CRACK IN LOWER INBD CORNER OF RT CUTOUT. REPLACED BULKHEAD. - [SDR 2012FA0000157](https://openairdocs.org/sdr/2012FA0000157), Feb 16, 2012: BOLT. LOOSE. DURING TROUBLESHOOTING FOR ALTERNATOR NOISE, INSPECTED ALTERNATOR AND FOUND BOLT LOOSE INSIDE ALTERNATOR CASE. REMOVED ALTERNATOR AND DISASSEMBLED, FOUND DIODE - [SDR 2012FA0000068](https://openairdocs.org/sdr/2012FA0000068), Jan 25, 2012: GOVERNOR. DISINTEGRATED. PROP GOVERNOR BEARING IN THE IDLER PART OF THE OIL PUMP DISINTEGRATED. - [SDR SQP2011F00000](https://openairdocs.org/sdr/SQP2011F00000), Aug 29, 2011: CYLINDER HEAD. SEPARATED. PILOT REPORTED LOUD BANG ON CLIMBOUT. RETURNED WITHOUT INCIDENT TO FIELD. UPON EXAMINATION FOUND NR 4 CYLINDER HEAD SEPARATED FROM CYLINDER AT 5TH COOLING FIN O - [SDR 2011FA0000270](https://openairdocs.org/sdr/2011FA0000270), Apr 11, 2011: NUT. LOOSE. SHORTLY AFTER INSTALLATION, THE ENG BEGAN AN OIL LEAK, UP FRONT ON THE RT SIDE NEAR THE OIL COOLER. OIL COOLER WAS REMOVED, FOUND THAT THE NUTS THAT HOLD THE OI - [SDR 2010FA0001222](https://openairdocs.org/sdr/2010FA0001222), Nov 4, 2010: MAGNETO. FAILED. THIS O/H MAGNETO WAS INSTALLED ON THE ACFT IAW MM AND STANDARD PRACTICES, TIMED TO ENG IAW MM. THE ENGINE WAS RUNUP IAW POH AND THE MAG CHECK WAS SATISFACTORY. - [SDR OW62010F00000](https://openairdocs.org/sdr/OW62010F00000), Feb 11, 2010: CYLINDER. CRACKED. FUEL STAIN ON OUTER ALUMINUM CASTING, CRACK FOUND BETWEEN COOLING FINS NEAR UPPER SPARKPLUG HOLE AND FUEL INJECTOR PORT. CRACK CONFIRMED BY PRESSURIZING INDUCTI - [SDR OW62009F00000](https://openairdocs.org/sdr/OW62009F00000), Sep 12, 2009: CYLINDER. BROKEN. PART 135 OPERATOR WITH 6 PERSONS ON BOARD, SCENIC TOUR FLIGHT. NR 5 CYLINDER/BARREL SEPARATED IN FLIGHT. ACFT MADE EMERGENCY OFF-AIRPORT LANDING. - [SDR 2009FA0000712](https://openairdocs.org/sdr/2009FA0000712), Jul 13, 2009: CYLINDER. PEELING. CYLINDER BARREL PEELING FOUND AFTER A LOW COMPRESSION TEST. THE BARREL PEELED IN AN AREA APPROX 2 INCHES WIDE. THE METAL CONTAMINATED THE ENG LUBRICATION SYS RE - [SDR CA090706004](https://openairdocs.org/sdr/CA090706004), Jun 18, 2009: ENGINE. FAILED. (CAN) ENGINE FAILED IN FLIGHT, WEATHER WAS GOOD, RESTART FAILED, ACFT MADE FORCED LANDING MINOR INJURIES. ACFT TO BE RECOVERED AND INVESTIGATED BY SAFETY BOARD. - [SDR CA090707002](https://openairdocs.org/sdr/CA090707002), Jun 10, 2009: ANEROID. FAILED. (CAN) FUEL PUMP ANEROID FAILED CAUSING ERRATIC FUEL FLOWS. - [SDR M2L2009F00000](https://openairdocs.org/sdr/M2L2009F00000), May 11, 2009: HINGE BRACKET. BROKEN. THIS PART HAS 2 SMALL 90 DEGREE ANGLES AT EITHER SIDE BOTTOM. THEY HAVE LITTLE OR NO ACTUAL STRENGTH OTHER THAN TO PREVENT THE LOWER WING SKIN FROM NOT BEING SE - [SDR M2L2009F00001](https://openairdocs.org/sdr/M2L2009F00001), May 7, 2009: HINGE BRACKET. BROKEN. THIS PART HAD 1 OR 2, 90 DEGREE ANGLES ON THE BOTTOM SIDE, CRACKED. THIS WAS CAUSED MOST LIKELY FROM YEARS OF FATIGUE. DON`T THINK THIS WOULD HAVE CAUSED AN AIR - [SDR 2009FA0000321](https://openairdocs.org/sdr/2009FA0000321), Apr 15, 2009: BLADE. CRACKED. THE ACFT WAS TAKEN OUT OF SERVICE DUE TO A BLADE THAT ROTATED FREELY IN THE HUB AND WAS NOT CONNECTED TO THE PITCH CHANGE MECHANISM. THE PROPELLER WAS DISASSEMB - [SDR 2009FA0000198](https://openairdocs.org/sdr/2009FA0000198), Mar 10, 2009: CYLINDER. CRACKED. NR 4 CYLINDER BARREL CRACKED APPROX. 1INCH FROM THE TOP OF THE BARREL AND ALMOST .7500 INCH OF THE WAY AROUND THE INSIDE CIRCUMFERENCE. THIS WAS A NEW ECI FREED - [SDR 2009FA0000031](https://openairdocs.org/sdr/2009FA0000031), Jan 21, 2009: SPARK PLUG. CRACKED. SPARK PLUG INSULATORS CRACKED AND FALLING APART. MULTIPLE PLUGS SHOW SIGNS OF SHORTING IN THE LEAD INSULATOR WELLS, FAILED SPARK PLUG PRESSURE CHECKS. SPARK PLU - [SDR 2007FA0000879](https://openairdocs.org/sdr/2007FA0000879), Sep 9, 2007: SELECTOR VALVE. MISMANUFACTURED. WHEN THE FUEL SELECTOR VALVE IS SELECTED TO THE RT TANK, FUEL IS BEING DELIVERED FROM THE LT TANK, VISE VERSA. THIS WAS DISCOVERED DURING A SHORT FLIGHT IN WHIC - [SDR 2007FA0000359](https://openairdocs.org/sdr/2007FA0000359), Apr 3, 2007: FITTING. CRACKED. FWD RT STABILIZER FITTING CRACKED. FOUND CRACKED FITTING UPON ANNUAL INSPECTION OF EMPENNAGE. (K) - [SDR CA070119009](https://openairdocs.org/sdr/CA070119009), Jan 16, 2007: SPAR. FAILED. (CAN) EDGE DISTANCE OF RIVETS ON LOWER FLANGE LESS THAN MINIMUM ALLOWED. REPLACEMENT OF PART REQUIRED TO REPAIR PROBLEM. (TC NR 20070119009) - [SDR CA070119010](https://openairdocs.org/sdr/CA070119010), Jan 16, 2007: SPAR. FAILED. (CAN) DURING REPLACEMENT OF LOWER OB SKIN, EDGE DISTANCE OF RIVETS THROUGH LOWER FLANGE LESS THAN MINIMUM ALLOWED IN 32 PLACES FROM STAT. 100.0 TO STAT. 154.00 - [SDR CA061218014](https://openairdocs.org/sdr/CA061218014), Dec 18, 2006: SEAL. LEAKING. (CAN) BLADE GREASE SEAL FAILED. GREASE LEAVING HUB. PROP REMOVED AND SENT TO REPAIR FACILITY WHERE NEW SEALS WERE INSTALLED. PROP REINSTALLED AND A/C SERVICEABL - [SDR 2006ADP09001](https://openairdocs.org/sdr/2006ADP09001), Sep 1, 2006: WIRE HARNESS. CRACKED. DURING INSPECTION ON A NEW, LOW TIME ENGINE, THE MT NOTICED A RATHER LARGE CRACK IN THE RT IGNITION HARNESS COVER, WHERE THE HARNESS ATTACHES TO THE MAGNETO. AF - [SDR 2006FA0000666](https://openairdocs.org/sdr/2006FA0000666), Jun 23, 2006: IMPELLER. MISMANUFACTURED. INSTALLED NEW ENGINE FOLLOWED RECOMMENDED PROCEDURES FOR BREAK IN. REMOVED & CUT OPEN OIL FILTER AT 1.4 HRS TTSN, AT 7.9HRS, & AT 24.7HRS. NORMAL PRACTICE WITH - [SDR CA060511001](https://openairdocs.org/sdr/CA060511001), May 11, 2006: DOOR FRAME. CRACKED. .5 INCH CRACK FOUND IN LOWER LT DOOR POST JAMB DURING ROUTINE INSPECTION. - [SDR MPVMANIFOLD](https://openairdocs.org/sdr/MPVMANIFOLD), Mar 28, 2006: FUEL DIVIDER. LEAKING. FUEL MANIFOLD VALVE IS LEAKING FROM THE VENT PORT. - [SDR CA060316004](https://openairdocs.org/sdr/CA060316004), Mar 6, 2006: FITTING. GOUGED. DURING WING REMOVAL FOR PAINT, LT LOWER WING STRUT FITTING WAS FOUND TO HAVE A GOUGE OF APPROXIMATELY 1/8" FROM STRUT FAIRING SCREW. - [SDR 2006ADP001](https://openairdocs.org/sdr/2006ADP001), Feb 24, 2006: CYLINDER. CRACKED. ALL SIX CYLINDERS HAVE CRACKS IN THE SAME AREA JUST ABOVE THE TOP SPARK PLUG HOLE. - [SDR MAFALT4](https://openairdocs.org/sdr/MAFALT4), Sep 2, 2005: ROTOR. FAILED. ELECTROSYSTEM WOES CONTINUE, WITH ANOTHER ROTOR GOING BAD. DETAILS: M/N DOFF10300BR S/N B110413 WITH A TS0 :1095.1 ON THE ALTERNATOR. THE ROTOR WAS CHANGED 3 DI - [SDR 2006FA0000287](https://openairdocs.org/sdr/2006FA0000287), Aug 22, 2005: CYLINDER. CRACKED. 5 OF 6 CYLINDERS CRACKED: ( SN 11501-23, 11501-11, 11556-01, 10644-18 CRACKED EXHAUST SIDE) (11909-27 CRACKED INTAKE SIDE) AT 439.5 HOURS. (K) - [SDR 2006FA0000288](https://openairdocs.org/sdr/2006FA0000288), Aug 22, 2005: CYLINDER. CRACKED. 5 OF 6 CYLINDERS CRACKED, (SN NR 11501-23, 11501-11, 11556-01, 10644-18 CRACKED EXHAUST SIDE) (SN NR 11901-27 CRACKED INTAKE SIDE) CRACKED AT 439.5 HOURS. (K) - [SDR 2006FA0000289](https://openairdocs.org/sdr/2006FA0000289), Aug 22, 2005: CYLINDER. CRACKED. 5 OF 6 CYLINDERS CRACKED. (SN NR 11501-23, 11501-11, 11556-01, 10644-18, 11909-27 CRACKED EXHAUST SIDE) (SN NR 11909-27 CRACKED INTAKESIDE) CRACKED AT 439.5 HOU - [SDR 2006FA0000290](https://openairdocs.org/sdr/2006FA0000290), Aug 22, 2005: CYLINDER. CRACKED. 5 OF 6 CYLINDERS CRACKED. (S/N 11501-23, 11501-11, 11556-01, 10644-18 CRACKED AT EXHAUST SIDE) ( S/N 11909-27 CRACKED AT INTAKE SIDE) CRACKED AT 439.5 HOURS. (K - [SDR 2006FA0000291](https://openairdocs.org/sdr/2006FA0000291), Aug 22, 2005: CYLINDER. CRACKED. 5 OF 6 CYLINDERS CRACKED (S/N 11501-23, 11501-11, 11556-01, 10644-18 CRACKED EXHAUST SIDE) (S/N 11909-27 CRACKED ON INTAKE SIDE) CRACKED AT 439.5 HOURS. (K) - [SDR GAJ2005F00001](https://openairdocs.org/sdr/GAJ2005F00001), Aug 15, 2005: CONTROL CABLE. FROZEN. 3/25/04, HOBBS 3218.1, TTAF 9745.1, REMOVED AND REINSTALLED ENGINE, THROTTLE, MISTURE AND PROP CONTROLS. 7/22/04, HOBBS 3417.7, TTAF 9944.0, VERNIER CONTROL REL - [SDR 2005FA0001134](https://openairdocs.org/sdr/2005FA0001134), Jul 28, 2005: FITTING. BROKEN. PILOT FOUND VERTICAL STABILIZER LOOSE ON PREFLIGHT. MAINTENANCE INSPECTED AND FOUND RT FWD ATTACHMENT FITTING BROKEN. REPLACED BOTH FWD FITTINGS WITH NEW PARTS. - [SDR DUKESPUMPPKMP](https://openairdocs.org/sdr/DUKESPUMPPKMP), Apr 5, 2005: PUMP. LEAKING. PUMP IS LEAKING AT THE SEAL AT THE BASE OF THE PUMP-NEAR/AT DRAIN PIPE. - [SDR DUKESPUMPMPG](https://openairdocs.org/sdr/DUKESPUMPMPG), Apr 5, 2005: PUMP. LEAKING. PUMP IS LEAKING AT THE SEAL AT THE BASE OF THE PUMP, NEAR DRAIN PIPE. - [SDR MAFALT1](https://openairdocs.org/sdr/MAFALT1), Apr 4, 2005: ALTERNATOR. OPEN. OPEN FIELD WINDING. - [SDR MAFALT2](https://openairdocs.org/sdr/MAFALT2), Apr 4, 2005: ALTERNATOR. OPEN. OPEN FIELD WINDING AT SLIP RING (WIRE BROKEN AT SOLDER JOINT). - [SDR MAFALT3](https://openairdocs.org/sdr/MAFALT3), Apr 4, 2005: WIRE. OPEN. OPEN FIELD WINDING AT SLIP RING (WIRE BROKEN AT SOLDER JOINT). All 118: https://openairdocs.org/engine/continental-tsio-520-m/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 TSIO-520 Series - [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd - [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc - [STC SE3248NM](https://openairdocs.org/stc/SE3248NM): Installation of air to air intercooler in engine induction system. Western Skyways Aircraft Modifications Inc - [STC SE5009NM](https://openairdocs.org/stc/SE5009NM): Installation of a modified exhaust system. Aerospace Welding Minneapolis 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 SE3782NM](https://openairdocs.org/stc/SE3782NM): Installation of an intercooler in the engine air induction system. Western Skyways Aircraft Modifications Inc - [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp - [STC SE09356SC](https://openairdocs.org/stc/SE09356SC): Install F & M Enterprises' Model C6LC, C6LC-S or C6LC-L oil filter adapter for a spin-on oil filter. Stratus Tool Technologies LLC - [STC SE96WE](https://openairdocs.org/stc/SE96WE): Installation of oil fitting(AN-823-5D) in rocker box cover. Airwolf Filter Corporation - [STC SE0417CH](https://openairdocs.org/stc/SE0417CH): Turbo-normalization. Western Skyways Aircraft Modifications Inc - [STC SE00113SE](https://openairdocs.org/stc/SE00113SE): 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 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 - [STC SE70RM](https://openairdocs.org/stc/SE70RM): Installation of compressor bracket. Air Comm Corporation - [STC SE09637SC](https://openairdocs.org/stc/SE09637SC): Remove existing rocker arm assemblies and install modify rocker arm assemblies. General Aviation Modifications Inc - [STC SE2393NM](https://openairdocs.org/stc/SE2393NM): Installation of a magneto pressurization kit assembly and associated system for Bendix Models S6RN-1201 and 1205, and SLICK Models 662, 680, 6210 and 6220. Turboplus Aircraft Systems, Inc - [STC SE1186SW](https://openairdocs.org/stc/SE1186SW): Regrooving of pistons P/N 631475 or P/N 632585. Continental Motors, Inc - [STC SE5820SW](https://openairdocs.org/stc/SE5820SW): Installation of Airmotive exhaust valve, P/N AEC-637781. Continental Motors, Inc. Lists TSIO-520 Series - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists TSIO-520 Series - [STC SE04117CH](https://openairdocs.org/stc/SE04117CH): Conversion of Continental Motors engine models TSIO-520-C, -G, -H, -M & -R to the naturally aspirated IO-520-A, -F, -J & -L. Western Skyways - [STC SE3330NM](https://openairdocs.org/stc/SE3330NM): Continental valve cover gasket. Real Gaskets Tennessee - [STC SE09280SC-D](https://openairdocs.org/stc/SE09280SC-D): Modify engine in accordance with RAM Aircraft Corporation Drawing No. 1888. RAM Aircraft Limited Partnership - [STC SE3631SW-D](https://openairdocs.org/stc/SE3631SW-D): Cylinder modifications. RAM Aircraft Limited Partnership - [STC SE5726SW-D](https://openairdocs.org/stc/SE5726SW-D): Installation of Floscan - 20lb or - 203b fuel flow transducers. RAM Aircraft Limited Partnership - [STC SE09846SC](https://openairdocs.org/stc/SE09846SC): Installation of S539800M30 starter adapter springs. Aircraft Specialties Services Inc - [STC SE444GL](https://openairdocs.org/stc/SE444GL): Incorporation of a fuel flow transducer. Shadin Avionics - [STC SE630SW](https://openairdocs.org/stc/SE630SW): Engine modifications. RAM Aircraft Limited Partnership - [STC SE4651SW](https://openairdocs.org/stc/SE4651SW): Installation of Slick pressurized magnetos. Also eligible on Teledyne Continental TSIO-520-NB engines modified per STC SE4327SW. RAM Aircraft Limited Partnership - [STC SE1780NM](https://openairdocs.org/stc/SE1780NM): Installation of Precise Flight standby vacuum system (SVS III). Precise Flight Inc - [STC SE5726SW](https://openairdocs.org/stc/SE5726SW): Installation of Floscan -201b or -203b fuel flow transducers. RAM Aircraft Limited Partnership - [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation - [STC SE09261SC](https://openairdocs.org/stc/SE09261SC): Modify engine to increase power output rating from 310 hp to 335 hp, install Garrett/AlliedSignal TA-81 turbocharger, RAM intercooler, RAM economy camshaft, RAM oil pump pickup tube, RAM forged pistons with gapless rings, and 0.02 inch undersized crankshaft. RAM Aircraft Limited Partnership. Lists TSIO-520 Series - [STC SE3631SW](https://openairdocs.org/stc/SE3631SW): Cylinder modification. RAM Aircraft Limited Partnership. Lists TSIO-520 Series - [STC SE5455SW](https://openairdocs.org/stc/SE5455SW): Unpressurized Slick 6220 magnetos. RAM Aircraft Limited Partnership - [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 TSIO-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 TSIO-520 Series - [STC SE2680NM](https://openairdocs.org/stc/SE2680NM): Installation of a wastegate actuator drain line. Machen Inc - [STC SE09289SC](https://openairdocs.org/stc/SE09289SC): Installation of modified fuel injector nozzles. General Aviation Modifications, Inc. Lists TSIO-520 Series - [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 TSIO-520 Series - [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation - [STC SE00144SE](https://openairdocs.org/stc/SE00144SE): 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 TSIO-520 Series - [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 SE7430SW](https://openairdocs.org/stc/SE7430SW): Installation of Performance Engineering roller rocker arms. Performance Engineering - [STC SE941GL](https://openairdocs.org/stc/SE941GL): Installation of oil filler tube extension. Rapco, Inc - [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists TSIO-520 Series All 58: https://openairdocs.org/engine/continental-tsio-520-m/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.