# Lycoming IO-540-C4B5

- Type: Engine model (FAA registry)
- Registry code: 41651
- Manufacturer (registry): LYCOMING
- Model: IO-540-C4B5
- Engine type: Reciprocating
- Power: 250 hp
- Data sheet: [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 179 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-io-540-c4b5

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 2026-17-10](https://openairdocs.org/ad/2026-17-10): Reciprocating Engine Cylinder Section · Lycoming Engines O-235, O-235-A, O-235-AP and 159 more. Effective Sep 14, 2026
- [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026
- [AD 2017-16-11](https://openairdocs.org/ad/2017-16-11): Reciprocating Engine Power Section · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-360-B1G6 and 93 more. Effective Aug 15, 2017
- [AD 2015-19-07](https://openairdocs.org/ad/2015-19-07): Fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 187 more. Effective Nov 3, 2015
- [AD 2012-19-01](https://openairdocs.org/ad/2012-19-01): Crankshafts · Lycoming Engines AEIO-360-A1A, AEIO-360-A1B, AEIO-360-A1B6 and 321 more. Effective Oct 24, 2012
- [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 2010-07-08](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 2009-26-12](https://openairdocs.org/ad/2009-26-12): Cylinder assemblies · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 264 more. Effective Feb 4, 2010
- [AD 2009-02-03](https://openairdocs.org/ad/2009-02-03): Fuel injection servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 261 more. Effective Feb 9, 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 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006
- [AD 2006-10-21](https://openairdocs.org/ad/2006-10-21): ECi connecting rods · Engine Components Reciprocating Engine Connecting Rods, AEIO-360-B1B, AEIO-360-B1D and 171 more. Effective Jun 22, 2006
- [AD 2005-19-11](https://openairdocs.org/ad/2005-19-11): Crankshafts · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, AEIO-540-D4A5 and 59 more. Effective Oct 21, 2005
- [AD 2005-12-06](https://openairdocs.org/ad/2005-12-06): Riveted-impulse coupling assemblies and snap-ring coupling assemblies · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 154 more. Effective Jul 19, 2005
- [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004
- [AD 2004-05-24](https://openairdocs.org/ad/2004-05-24): Zinc-plated Crankshaft Gear Retaining Bolts · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 161 more. Effective Mar 30, 2004
- [AD 2003-14-03](https://openairdocs.org/ad/2003-14-03): Rotary fuel pumps · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 262 more. Effective Aug 14, 2003
- [AD 2002-19-03](https://openairdocs.org/ad/2002-19-03): Crankshaft · Lycoming Engines IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5 and 81 more. Effective Sep 20, 2002
- [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 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997
- [AD 96-23-03](https://openairdocs.org/ad/96-23-03): High pressure fuel pumps · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 174 more. Effective Dec 23, 1996
- [AD 96-09-10](https://openairdocs.org/ad/96-09-10): Oil pump · Lycoming Engines AEIO-320-E1A, AEIO-320-E1B, AEIO-320-E2A and 334 more. Effective Jul 15, 1996
- [AD 95-26-02](https://openairdocs.org/ad/95-26-02): Aviation Gasoline · Lycoming Engines IO-320-B1A, IO-320-B1B, IO-320-B1C and 182 more. Effective Jan 24, 1996
- [AD 95-07-01](https://openairdocs.org/ad/95-07-01): Connecting Rod Bolt · Lycoming Engines AEIO-360-A1E, AEIO-360-B1G6, AEIO-360-H1A and 177 more. Effective Apr 12, 1995
- [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992
- [AD 87-10-06 R1](https://openairdocs.org/ad/87-10-06-R1): Rocker Arm Assembly · Lycoming Engines IO-360-B4, IVO-360-A1A, O-340-A1A and 243 more. Effective Sep 1, 1989
- [AD 79-04-05](https://openairdocs.org/ad/79-04-05): Regulator Diaphragm Stem Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 215 more. Effective Sep 26, 1979
- [AD 78-23-10](https://openairdocs.org/ad/78-23-10): Center Body Bellows Seal Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 218 more. Effective Nov 7, 1978
- [AD 75-08-09](https://openairdocs.org/ad/75-08-09): Oil Pump Drive Shaft · Lycoming Engines AEIO-360-A1B, AEIO-360-A1B6, AEIO-360-A1C and 365 more. Effective Aug 18, 1977
- [AD 73-23-01](https://openairdocs.org/ad/73-23-01): Piston Pin Assembly · Lycoming Engines AIO-360-A1A, AIO-360-A1B, AIO-360-A2A and 215 more. Effective Jan 13, 1977
- [AD 75-09-15](https://openairdocs.org/ad/75-09-15): Fuel Starvation To The Engine · Lycoming Engines AIO-320-A1A, AIO-320-A1B, AIO-320-A2A and 130 more. Effective Apr 30, 1975
- [AD 73-10-02](https://openairdocs.org/ad/73-10-02): Bendix Fuel Injectors · Bendix Fuel Injectors, AIO-320-A1A, AIO-320-A1B and 88 more. Effective May 16, 1973
- [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969
- [AD 67-22-06](https://openairdocs.org/ad/67-22-06): Fuel Injectors · Lycoming Engines HIO-360-A1A, HIO-360-B1A, HIO-360-B1B and 28 more. Effective Aug 9, 1967
- [AD 66-20-04](https://openairdocs.org/ad/66-20-04): Oil Filter Adapter Gasket · Lycoming Engines IO-320-A1A, IO-320-A2A, IO-320-B1A and 121 more. Effective Aug 27, 1966

Historical (superseded or no longer in force):

- [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024
- [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012
- [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011
- [AD 2008-19-05](https://openairdocs.org/ad/2008-19-05) (historical): Parallel Valve'' reciprocating engines · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 262 more. Effective Oct 20, 2008
- [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008
- [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008
- [AD 2008-06-51](https://openairdocs.org/ad/2008-06-51) (historical): Fuel injection servo plugs · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 235 more
- [AD 2006-20-09](https://openairdocs.org/ad/2006-20-09) (historical): Certain crankshafts replacing · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, AEIO-540-D4A5 and 82 more. Effective Nov 3, 2006
- [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10) (historical): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more. Effective Jan 31, 2006
- [AD 2002-26-01](https://openairdocs.org/ad/2002-26-01) (historical): Fuel injector fuel lines · Textron Lycoming, AVCO IGO-480-A1B6, IGO-540-B1A, IGO-540-B1C and 178 more. Effective Jan 31, 2003
- [AD 98-18-12](https://openairdocs.org/ad/98-18-12) (historical): Fuel Pump · Textron Lycoming, AVCO AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 249 more. Effective Sep 28, 1998
- [AD 81-18-04 R2](https://openairdocs.org/ad/81-18-04-R2) (historical): Engine Oil Pump Driven Impeller and Shaft · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 376 more. Effective Jun 7, 1982

## Information bulletins (advisory) (7)

- [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019
- [SAIB NE-08-32R1](https://openairdocs.org/saib/NE-08-32R1): Propeller Governor  Idler Gear Shaft Set Screw. Issued May 13, 2016
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014
- [SAIB NE-13-06](https://openairdocs.org/saib/NE-13-06): Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320, 360, and 540 Series Engines. Issued Nov 21, 2012
- [SAIB NE-09-04](https://openairdocs.org/saib/NE-09-04): Fuel Control/Reciprocating Engines. Issued Jan 10, 2009
- [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft. Issued Sep 10, 2008
- [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008

## Registered aircraft (179, first 50)

- [N100UK](https://openairdocs.org/aircraft/N100UK): [Furlow Paul S](https://openairdocs.org/faa-owner/FURLOW%20PAUL%20S), [Annapolis, MD](https://openairdocs.org/faa-place/MD/Annapolis), built 2015, S/N 41541
- [N101WG](https://openairdocs.org/aircraft/N101WG): [Gard Aviation LLC](https://openairdocs.org/faa-owner/GARD%20AVIATION%20LLC), [Elkhart, IA](https://openairdocs.org/faa-place/IA/Elkhart), built 2009, S/N 40697
- [N104BK](https://openairdocs.org/aircraft/N104BK): [Charlie Alpha Bravo LLC](https://openairdocs.org/faa-owner/CHARLIE%20ALPHA%20BRAVO%20LLC), [Spring Hill, KS](https://openairdocs.org/faa-place/KS/Spring%20Hill), built 2012, S/N 40125
- [N104BR](https://openairdocs.org/aircraft/N104BR): [Belsaas Richard A](https://openairdocs.org/faa-owner/BELSAAS%20RICHARD%20A), [Rapid City, SD](https://openairdocs.org/faa-place/SD/Rapid%20City), built 2007, S/N 40373
- [N104EE](https://openairdocs.org/aircraft/N104EE): [Westfall Benjamin C](https://openairdocs.org/faa-owner/WESTFALL%20BENJAMIN%20C), [Coeur D Alene, ID](https://openairdocs.org/faa-place/ID/Coeur%20D%20Alene), built 2019, S/N 001
- [N106WK](https://openairdocs.org/aircraft/N106WK): [Kowalewski William P](https://openairdocs.org/faa-owner/KOWALEWSKI%20WILLIAM%20P), [Prescott, AZ](https://openairdocs.org/faa-place/AZ/Prescott), built 2011, S/N 001
- [N109MY](https://openairdocs.org/aircraft/N109MY): [Yonchak Mark A](https://openairdocs.org/faa-owner/YONCHAK%20MARK%20A), [Alexandria, VA](https://openairdocs.org/faa-place/VA/Alexandria), built 2021, S/N 2000
- [N1107R](https://openairdocs.org/aircraft/N1107R): [Brewer David W](https://openairdocs.org/faa-owner/BREWER%20DAVID%20W), [Savannah, TN](https://openairdocs.org/faa-place/TN/Savannah), built 2020, S/N 001
- [N110GS](https://openairdocs.org/aircraft/N110GS): [Gcb LLC](https://openairdocs.org/faa-owner/GCB%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 2007, S/N 40607
- [N111LC](https://openairdocs.org/aircraft/N111LC): [Oyster Chris R](https://openairdocs.org/faa-owner/OYSTER%20CHRIS%20R), [Bellville, OH](https://openairdocs.org/faa-place/OH/Bellville), built 1974, S/N WJC1
- [N112LR](https://openairdocs.org/aircraft/N112LR): [Razzi Leonard F Jr](https://openairdocs.org/faa-owner/RAZZI%20LEONARD%20F%20JR), [Glenmoore, PA](https://openairdocs.org/faa-place/PA/Glenmoore), S/N 30
- [N123Y](https://openairdocs.org/aircraft/N123Y): [Hills David F](https://openairdocs.org/faa-owner/HILLS%20DAVID%20F), [Nampa, ID](https://openairdocs.org/faa-place/ID/Nampa), built 2009, S/N 40278
- [N1249V](https://openairdocs.org/aircraft/N1249V): [Aguilar Perez Jose L](https://openairdocs.org/faa-owner/AGUILAR%20PEREZ%20JOSE%20L), [Newton, MA](https://openairdocs.org/faa-place/MA/Newton), built 1976, S/N 27-7654046
- [N130YD](https://openairdocs.org/aircraft/N130YD): [Boyd William E Jr](https://openairdocs.org/faa-owner/BOYD%20WILLIAM%20E%20JR), [Clifton Forge, VA](https://openairdocs.org/faa-place/VA/Clifton%20Forge), built 2020, S/N 41154
- [N131RM](https://openairdocs.org/aircraft/N131RM): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1976, S/N 27-7654053
- [N138LG](https://openairdocs.org/aircraft/N138LG): [Rocket Aero LLC](https://openairdocs.org/faa-owner/ROCKET%20AERO%20LLC), [Addison, TX](https://openairdocs.org/faa-place/TX/Addison), S/N 152
- [N13966](https://openairdocs.org/aircraft/N13966): [Chesapeake Aviation LLC](https://openairdocs.org/faa-owner/CHESAPEAKE%20AVIATION%20LLC), [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes), built 1970, S/N 27-4581
- [N13UB](https://openairdocs.org/aircraft/N13UB): [Johnson Andrew P](https://openairdocs.org/faa-owner/JOHNSON%20ANDREW%20P), [Poquoson, VA](https://openairdocs.org/faa-place/VA/Poquoson), built 2014, S/N 40753
- [N14049](https://openairdocs.org/aircraft/N14049): [Liberty Leasing II LLC](https://openairdocs.org/faa-owner/LIBERTY%20LEASING%20II%20LLC), [Melbourne, FL](https://openairdocs.org/faa-place/FL/Melbourne), built 1987, S/N 48
- [N14175](https://openairdocs.org/aircraft/N14175): [Box Aviation Inc](https://openairdocs.org/faa-owner/BOX%20AVIATION%20INC), [Montgomery, AL](https://openairdocs.org/faa-place/AL/Montgomery), built 1971, S/N 27-4739
- [N143EB](https://openairdocs.org/aircraft/N143EB): [Lewis Thomas B](https://openairdocs.org/faa-owner/LEWIS%20THOMAS%20B), [Granbury, TX](https://openairdocs.org/faa-place/TX/Granbury), built 2007, S/N 40307
- [N143RW](https://openairdocs.org/aircraft/N143RW): [Wendell Ross](https://openairdocs.org/faa-owner/WENDELL%20ROSS), [Ankeny, IA](https://openairdocs.org/faa-place/IA/Ankeny), built 2013, S/N 40450
- [N144HR](https://openairdocs.org/aircraft/N144HR): [Rsa Aviation Enterprises LLC](https://openairdocs.org/faa-owner/RSA%20AVIATION%20ENTERPRISES%20LLC), [Peachtree City, GA](https://openairdocs.org/faa-place/GA/Peachtree%20City), built 2005, S/N 153
- [N145HR](https://openairdocs.org/aircraft/N145HR): [Neufeld Mark W](https://openairdocs.org/faa-owner/NEUFELD%20MARK%20W), [Coeur D Alene, ID](https://openairdocs.org/faa-place/ID/Coeur%20D%20Alene), built 2007, S/N 1778
- [N152RV](https://openairdocs.org/aircraft/N152RV): [Needham Wayne](https://openairdocs.org/faa-owner/NEEDHAM%20WAYNE), [Canyon, TX](https://openairdocs.org/faa-place/TX/Canyon), built 2008, S/N 007
- [N156HR](https://openairdocs.org/aircraft/N156HR): [Callahan Bryan J](https://openairdocs.org/faa-owner/CALLAHAN%20BRYAN%20J), [Apalachicola, FL](https://openairdocs.org/faa-place/FL/Apalachicola), built 2007, S/N 156 KIT
- [N1577R](https://openairdocs.org/aircraft/N1577R): [Global Aircraft Trust Inc Trustee](https://openairdocs.org/faa-owner/GLOBAL%20AIRCRAFT%20TRUST%20INC%20TRUSTEE), [Cheyenne, WY](https://openairdocs.org/faa-place/WY/Cheyenne), built 1981, S/N 278154026
- [N15PT](https://openairdocs.org/aircraft/N15PT): [Thyssen Patrick L](https://openairdocs.org/faa-owner/THYSSEN%20PATRICK%20L), [Conroe, TX](https://openairdocs.org/faa-place/TX/Conroe), built 2009, S/N 40257
- [N161PC](https://openairdocs.org/aircraft/N161PC): [Spence Jeffrey](https://openairdocs.org/faa-owner/SPENCE%20JEFFREY), [Haskell, OK](https://openairdocs.org/faa-place/OK/Haskell), built 2020, S/N 40052
- [N166JR](https://openairdocs.org/aircraft/N166JR): [Linebaugh Jeffrey A](https://openairdocs.org/faa-owner/LINEBAUGH%20JEFFREY%20A), [Port Orange, FL](https://openairdocs.org/faa-place/FL/Port%20Orange), built 2013, S/N 042
- [N1715Y](https://openairdocs.org/aircraft/N1715Y): [Pacific Fleet Aviation LLC](https://openairdocs.org/faa-owner/PACIFIC%20FLEET%20AVIATION%20LLC), [Rochester, NY](https://openairdocs.org/faa-place/NY/Rochester), built 1976, S/N 27-7654096
- [N177](https://openairdocs.org/aircraft/N177): [Executive Travel Authority LLC](https://openairdocs.org/faa-owner/EXECUTIVE%20TRAVEL%20AUTHORITY%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1970, S/N 27-4511
- [N1804Q](https://openairdocs.org/aircraft/N1804Q): [Cliff Robinson Real Estate Corp](https://openairdocs.org/faa-owner/CLIFF%20ROBINSON%20REAL%20ESTATE%20CORP), [Madison, IN](https://openairdocs.org/faa-place/IN/Madison), built 1956, S/N 216
- [N185WE](https://openairdocs.org/aircraft/N185WE): [Chain Daniel](https://openairdocs.org/faa-owner/CHAIN%20DANIEL), [Lake Havasu City, AZ](https://openairdocs.org/faa-place/AZ/Lake%20Havasu%20City), built 2011, S/N HEND-1
- [N188TB](https://openairdocs.org/aircraft/N188TB): [Greenley William C](https://openairdocs.org/faa-owner/GREENLEY%20WILLIAM%20C), [Dowagiac, MI](https://openairdocs.org/faa-place/MI/Dowagiac), built 2018, S/N 41130
- [N194ML](https://openairdocs.org/aircraft/N194ML): [Gofly Trading LLC](https://openairdocs.org/faa-owner/GOFLY%20TRADING%20LLC), [Opa Locka, FL](https://openairdocs.org/faa-place/FL/Opa%20Locka), built 1979, S/N 27-7954081
- [N2090](https://openairdocs.org/aircraft/N2090): [American Valet Air Inc](https://openairdocs.org/faa-owner/AMERICAN%20VALET%20AIR%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1981, S/N 27-8154010
- [N209KT](https://openairdocs.org/aircraft/N209KT): [Mcmaster Wayne R](https://openairdocs.org/faa-owner/MCMASTER%20WAYNE%20R), [Jeffersonville, IN](https://openairdocs.org/faa-place/IN/Jeffersonville), built 2008, S/N 165T
- [N2112H](https://openairdocs.org/aircraft/N2112H): [Air V Inc Trustee](https://openairdocs.org/faa-owner/AIR%20V%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1977, S/N 27-7754121
- [N218MP](https://openairdocs.org/aircraft/N218MP): [Supair Ltd](https://openairdocs.org/faa-owner/SUPAIR%20LTD), [Mooresboro, NC](https://openairdocs.org/faa-place/NC/Mooresboro), built 2008, S/N 352
- [N221KR](https://openairdocs.org/aircraft/N221KR): [Mckeand Scott](https://openairdocs.org/faa-owner/MCKEAND%20SCOTT), [Jeddo, MI](https://openairdocs.org/faa-place/MI/Jeddo), S/N 40122
- [N222DU](https://openairdocs.org/aircraft/N222DU): [Cg 340 LLC](https://openairdocs.org/faa-owner/CG%20340%20LLC), [Fountain Hills, AZ](https://openairdocs.org/faa-place/AZ/Fountain%20Hills), built 1973, S/N 27-7305046
- [N230DH](https://openairdocs.org/aircraft/N230DH): [Harris Dwain L](https://openairdocs.org/faa-owner/HARRIS%20DWAIN%20L), [Pickens, SC](https://openairdocs.org/faa-place/SC/Pickens), built 2019, S/N 309
- [N230JC](https://openairdocs.org/aircraft/N230JC): [N230jc Inc Trustee](https://openairdocs.org/faa-owner/N230JC%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1977, S/N 27-7854011
- [N2392B](https://openairdocs.org/aircraft/N2392B): [Morton Dennis D](https://openairdocs.org/faa-owner/MORTON%20DENNIS%20D), [La Harpe, IL](https://openairdocs.org/faa-place/IL/La%20Harpe), built 1999, S/N 001
- [N23AV](https://openairdocs.org/aircraft/N23AV): [Jtz Aviation LLC](https://openairdocs.org/faa-owner/JTZ%20AVIATION%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1981, S/N 27-8154003
- [N241TN](https://openairdocs.org/aircraft/N241TN): [Wilmoth Matthew L](https://openairdocs.org/faa-owner/WILMOTH%20MATTHEW%20L), [Traverse City, MI](https://openairdocs.org/faa-place/MI/Traverse%20City), built 1979, S/N 27-7954110
- [N245BG](https://openairdocs.org/aircraft/N245BG): [Murphy Daniel D](https://openairdocs.org/faa-owner/MURPHY%20DANIEL%20D), [Hanford, CA](https://openairdocs.org/faa-place/CA/Hanford), built 2011, S/N 063
- [N245JM](https://openairdocs.org/aircraft/N245JM): [Dorfling Johannes](https://openairdocs.org/faa-owner/DORFLING%20JOHANNES), [Nicholasville, KY](https://openairdocs.org/faa-place/KY/Nicholasville), built 2017, S/N 40596
- [N247G](https://openairdocs.org/aircraft/N247G): [Hanson James A](https://openairdocs.org/faa-owner/HANSON%20JAMES%20A), [Bandon, OR](https://openairdocs.org/faa-place/OR/Bandon), S/N 336

All 179: https://openairdocs.org/engine/lycoming-io-540-c4b5/aircraft.md

## NTSB investigations (16)

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 ERA26LA302](https://openairdocs.org/ntsb/ERA26LA302), Aug 11, 2026: Frank J Salomone RV10 (N100UK), Stevensville, MD, substantial damage, investigation ongoing
- [NTSB WPR26LA185](https://openairdocs.org/ntsb/WPR26LA185), May 13, 2026: Craig Ellison Bearhawk Four (N953CN), Sandpoint, ID, substantial damage, investigation ongoing
- [NTSB ERA24LA275](https://openairdocs.org/ntsb/ERA24LA275), Jun 25, 2024: Piper PA23 (N14175), Montgomery, AL, substantial damage. Probable cause: The failure of the nose landing gear actuator to maintain a fully down and locked position.
- [NTSB WPR24LA081](https://openairdocs.org/ntsb/WPR24LA081), Jan 30, 2024: Christopher Randall Raptor Junior 540 (N906CR), Camarillo, CA, substantial damage. Probable cause: A total loss of engine power due to the loss of power to the electronic fuel injection and ignition system, which was the result of a loose connection between a common ground feed-through stud and…
- [NTSB CEN23LA323](https://openairdocs.org/ntsb/CEN23LA323), Jul 20, 2023: Vans RV-10 (N917CM), Oshkosh, WI, substantial damage. Probable cause: The pilot’s improper landing flare which resulted in a hard landing.
- [NTSB CEN21LA096](https://openairdocs.org/ntsb/CEN21LA096), Dec 21, 2020: Express CT (N772BM), Grand Prairie, TX, destroyed, 2 fatal. Probable cause: The pilot’s loss of airplane control during the departure turn, which resulted in an aerodynamic stall and impact with terrain.
- [NTSB CEN20LA419](https://openairdocs.org/ntsb/CEN20LA419), Sep 25, 2020: Team Rockets F1 (N540LK), San Marcos, TX, destroyed. Probable cause: The F1 pilot’s failure to see and avoid the lower altitude Cessna while on final approach for landing. Contributing to the accident were the restrictions to pilot visibility inherent to low- and…
- [NTSB GAA19CA180](https://openairdocs.org/ntsb/GAA19CA180), Mar 24, 2019: Piper PA23 (N976AZ), Tampa, FL, substantial damage. Probable cause: An in-flight collision with a bird during the approach, which resulted in damage to the vertical stabilizer.
- [NTSB CEN15FA321](https://openairdocs.org/ntsb/CEN15FA321), Jul 28, 2015: Christensen Steve Wheeler Express (N3FC), Holland, MN, substantial damage, 3 fatal. Probable cause: The pilot’s failure to maintain adequate airspeed during a high-pitch, steep right turn, which resulted in the exceedance of the airplane’s critical angle-of-attack and a subsequent aerodynamic…
- [NTSB ERA14LA378](https://openairdocs.org/ntsb/ERA14LA378), Aug 10, 2014: Birchler Boyd Eagle 540 (N34BJ), Standish, ME, substantial damage. Probable cause: The total loss of engine power due to fuel starvation for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded…
- [NTSB WPR13CA276](https://openairdocs.org/ntsb/WPR13CA276), Jun 17, 2013: Gary W Bettis Harmon Rocket II (N91GB), South Lake Tahoe, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing with a crosswind.
- [NTSB WPR13LA093](https://openairdocs.org/ntsb/WPR13LA093), Dec 31, 2012: Kaufmann Vans RV-10 (N104BK), Las Vegas, NV, substantial damage. Probable cause: A missing elevator control assembly attachment bolt, which rendered the elevator control system ineffective and resulted in a loss of pitch control, and the pilot’s incorrect installation of the…
- [NTSB CEN12LA538](https://openairdocs.org/ntsb/CEN12LA538), Aug 7, 2012: Cantlon Starduster Too SA300 (N111LC), Galion, OH, substantial damage. Probable cause: The pilot's failure to maintain directional control and a proper pitch attitude and airspeed while performing an aborted landing.
- [NTSB CEN12CA360](https://openairdocs.org/ntsb/CEN12CA360), Jun 9, 2012: Birchler Boyd Eagle 540 (N34BJ), Kokomo, IN, substantial damage. Probable cause: The pilot's failure to maintain adequate clearance from the trees during a low-level aerobatic maneuver.
- [NTSB CEN11LA669](https://openairdocs.org/ntsb/CEN11LA669), Sep 27, 2011: Owen Vans RV-10 (N499RV), Marietta, OH, destroyed. Probable cause: The in-flight engine fire and loss of engine power due to an improperly installed fuel injector nozzle during a recent engine overhaul.
- [NTSB NYC08FA157](https://openairdocs.org/ntsb/NYC08FA157), Apr 7, 2008: Cartwright H Jr/Cottrell M RV-10 (N210HM), Seale, AL, destroyed, 2 fatal. Probable cause: The pilot-in-command's in-flight loss of control due to spatial disorientation. Contributing to the accident were the weather conditions and the pilot-in-command's lack of flight experience in the…

## FAA accident and incident reports (31)

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 20260811009349A](https://openairdocs.org/incident/20260811009349A), Aug 11, 2026: Frank J Salomone RV10 (N100UK), Stevensville, MD, Substantial damage. On Tuesday, August 11, 2026, at approximately 2:40PM EST, aircraft [privacy data omitted], an vans RV10, [privacy data omitted], registered as an experimental…
- [Accident 20260512005569A](https://openairdocs.org/incident/20260512005569A), May 12, 2026: Craig Ellison BEARHAWK FOUR (N953CN), Sandpoint, ID, Substantial damage. Right hand main landing gear brake malfunctioned (locked up), resulting in aircraft completely turning over (nose over) on landing roll out, coming to rest on…
- [Incident 20241017018539I](https://openairdocs.org/incident/20241017018539I), Oct 17, 2024: Piper PA-23-250 (N1715Y), Kona, HI, Minor damage. Aircraft approached from the north to land on runway 17. After touchdown during rollout, nose gear collapsed. No adverse gear indications prior to event.
- [Incident 20240811013559I](https://openairdocs.org/incident/20240811013559I), Aug 11, 2024: Aerofab Inc LAKE LA-250 (N82LR), Laconia, NH, Minor damage. Pilot was landing his privately [privacy data omitted] lake 250 amphibious aircraft with two passengers onboard at the Laconia new hampshire airport. Landing…
- [Accident 20240625007479A](https://openairdocs.org/incident/20240625007479A), Jun 25, 2024: Piper PA-23-250 (N14175), Montgomery, AL, Substantial damage. PIC was conducting personal practice with type aircraft. On first landing attempt, he stated everything was looking just fine and continued to land. An ATC…
- [Accident 20240130020639A](https://openairdocs.org/incident/20240130020639A), Jan 30, 2024: Christopher Randall RAPTOR JUNIOR 540 (N906CR), Camarillo, CA, Destroyed. On January 30, 2024 a raptor jr. [privacy data omitted]Departed santa monica airport with two soles on board. The aircraft proceeded in a northwesterly…
- [Accident 20230720011129A](https://openairdocs.org/incident/20230720011129A), Jul 20, 2023: Michael J Karaszewski VANS RV-10 (N917CM), Oshkosh, WI, Substantial damage. On July 20, 2023 AT1835 CST, a vans experimental RV-10 [privacy data omitted] landed on runway 27 at Oshkosh WI Wittman Field and collasped the main landing…
- [Incident 20211203020239I](https://openairdocs.org/incident/20211203020239I), Dec 3, 2021: Dustin Smith COZY MARK IV (N540DA), Ogden, UT, Minor damage. The local personal flight originated in Ogden, Utah (ogd). The pilot stated that prior to landing he forgot to extend the nose landing gear. The aircraft has…
- [Incident 20210630011609I](https://openairdocs.org/incident/20210630011609I), Jun 30, 2021: Piper PA-23-250 (N1715Y), Kona, HI, Minor damage. On June 30, 2021 around 0845 HST the hnl FSDO was notified by roc , there was a PA23 type aircraft involved in an incident at the ellison onizuka Kona…
- [Accident 20201221017519A](https://openairdocs.org/incident/20201221017519A), Dec 21, 2020: Blue Moon Xpress Inc EXPRESS CT (N772BM), Grand Prairie, TX, Destroyed, 2 fatal. On December 21, 2020 at approximately 1451 CST, N772BM, an experimental whitman express, was destroyed when it was involved in an accident at the intersection…
- [Accident 20200924022231A](https://openairdocs.org/incident/20200924022231A), Sep 24, 2020: Escobar Luis E TEAM ROCKETS F1 (N540LK), San Marcos, TX, Destroyed. Aircraft (a) N108VK - CFI was instructing student mostly on pattern work and landings along with a few other maneuvers that were covered on the way over to…
- [Accident 20190324001969A](https://openairdocs.org/incident/20190324001969A), Mar 24, 2019: Piper PA-23-250 (N976AZ), Tampa, FL, Substantial damage. On March 24, 2019 at 1452 EDT a Piper PA-23-250, N976AZ that is registered to mtn aviation LLC. Struck a bird at 3000 feet. Aircraft landed without incident…
- [Incident 20180104000459I](https://openairdocs.org/incident/20180104000459I), Jan 4, 2018: Piper PA-23-250 (N499CR), Charleston, WV, Minor damage. Pilot stated that while on approach he decided to go around because he felt he was to high. On go around he noticed the RPM on the left engine was above the…
- [Incident 20170619018989I](https://openairdocs.org/incident/20170619018989I), Jun 19, 2017: Piper PA-23-250 (N52WW), Fishers Island, NY, Minor damage. On approach to runway 12 at Elizabeth Field Fishers Island, NY 0B8 the PIC explained that he had a right crosswind and flew the approach at 90-95 knots with 15…
- [Incident 20150904017179I](https://openairdocs.org/incident/20150904017179I), Sep 4, 2015: Piper PA-23-250 (N1715Y), Cat Cay, BH, Minor damage. On 09/04/2015, pilot [privacy data omitted] advised pbi upon arrival of a possible gear problem and requested a tower flyby to verify gear ok. Landing was…
- [Accident 20150727011829A](https://openairdocs.org/incident/20150727011829A), Jul 27, 2015: Christensen Steve WHEELER EXPRESS (N3FC), Holland, MN, Destroyed, 3 fatal. Aircraft accident occurred in a field near Holland, MN under unknown circumstances. Pilot and 2 passengers were fatally injured in the accident.
- [Accident 20140810014479A](https://openairdocs.org/incident/20140810014479A), Aug 10, 2014: Birchler Boyd EAGLE 540 (N34BJ), Standish, ME, Substantial damage. Pilot and only occupant of N34BJ, departed the northern aroostook rgnl airport, frenchville, Maine after conducting an aeobatic demonstration in his christen…
- [Incident 20130928021379I](https://openairdocs.org/incident/20130928021379I), Sep 28, 2013: Combs James Lee RV-10 (N312F), Lexington, KY, Minor damage. An experimental amateur built RV-10 aircraft was being flown just northeast of london, KY heading toward mt sterling in cruise flight at approx 3000 ft & 150…
- [Accident 20130617009639A](https://openairdocs.org/incident/20130617009639A), Jun 17, 2013: Gary W Bettis HARMON ROCKET II (N91GB), South Lake Taho, CA, Substantial damage. The pilot stated that he made one go-around to check the runway conditions. The pilot reported that he had a hard landing on runway 18 and that he veered to…
- [Incident 20130326006989I](https://openairdocs.org/incident/20130326006989I), Mar 26, 2013: Williams David L TEAM ROCKET F1 (N59PM), Phoenix, AZ, Minor damage. On 3-26-13 at 0845 hours MST N59PM, team rocket F1 experimental aircraft, at Phoenix Deer Valley Airport (dvt) was doing touch and goes on runway 25R. The…
- [Accident 20121231028439A](https://openairdocs.org/incident/20121231028439A), Dec 31, 2012: Kaufmann Robert J VANS RV-10 (N104BK), North Las Vegas, NV, Minor damage. On short final to runway 30L at the North Las Vegas airport, N104BK experienced a hard landing due to the loss of continuity in the elevator flight control…
- [Accident 20120807015869A](https://openairdocs.org/incident/20120807015869A), Aug 7, 2012: Cantlon STARDUSTER TOO SA300 (N111LC), Galion, OH, Substantial damage. While attempting to land the a/c began to ground loop. Pilot attempted to avoid situation but was heads down in cockpit too long and lost orientation. Upon…
- [Accident 20120609010459A](https://openairdocs.org/incident/20120609010459A), Jun 9, 2012: Birchler Boyd EAGLE 540 (N34BJ), Kokomo, IN, Substantial damage. On Saturday, June 9, 2012 pilot [privacy data omitted] was performing at an air show for the wings and wheels air show held at the Kokomo, Indiana airport.…
- [Accident 20110927024019A](https://openairdocs.org/incident/20110927024019A), Sep 27, 2011: Vans RV-10 (N499RV), Marietta, OH, Destroyed. 09-27-11:Aircraft N499RV, inbound to pkb (parkersburg, WV), encountered engine trouble...witnesses on the ground reported hearing a bang and observed black…
- [Incident 20090505010789I](https://openairdocs.org/incident/20090505010789I), May 5, 2009: Amtr FIREFLY (N95PX), Norfolk, VA, Minor damage. (-23) The pilot rotated the nose of the aircraft higher than normal in an attempt to make a smooth landing. The aircraft propeller struck the runway. This…
- [Accident 20080407836889A](https://openairdocs.org/incident/20080407836889A), Apr 7, 2008: Cartwr RV10 (N210HM), Phenix City, AL, Destroyed, 2 fatal. (-23) Aircraft departed vft from lebanon municipal airport (M54) in Tennessee for direct flight to eufaula, Alabama (euf) filing IFR in flight on 04/07/2008.…
- [Incident 20070715013989I](https://openairdocs.org/incident/20070715013989I), Jul 15, 2007: Amtr FIREFLY (N95PX), Midland, TX, Minor damage. (-23) On July 15, 2007, at approximately 1230 CDT, the pilot of an experimental research and development aircraft, model proxy aviation systems Firefly,…
- [Incident 20050112004409I](https://openairdocs.org/incident/20050112004409I), Jan 12, 2005: Piper PA23250 (N63764), Indianapolis, IN, Minor damage. (-23) On landing the left main landing gear collapsed. Inspection of the aircraft revealed that the left main landing gear drag link assembly separated between…
- [Incident 19900126007189I](https://openairdocs.org/incident/19900126007189I), Jan 26, 1990: Conaer LA4 (N14049), Elizabeth City, NC, Minor damage. Pilot stated he forgot to lower landing gear and landed gear up.
- [Incident 19860731042809I](https://openairdocs.org/incident/19860731042809I), Jul 31, 1986: Piper PA23250 (N2364Z), Augusta, GA, Minor damage. Intentional gear up landing after wheel came off during takeoff. Aluminum wheel split apart.
- [Incident 19830425038839I](https://openairdocs.org/incident/19830425038839I), Apr 25, 1983: Piper PA23 (N62787), Bartlesville, OK, Minor damage. Propeller feathered. Unable to lower gear. Landed with gear partially extended. Crankshaft broken. Ignition trouble

## Service difficulty reports (182, newest 50)

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

- [SDR 2022FA0000403](https://openairdocs.org/sdr/2022FA0000403), Jul 24, 2022: GOVERNOR. INOPERATIVE. LH PROPELLER GOVERNOR CAN NOT CONTROL PROPELLER RPM. SUSPECT PROP. GOVERNOR IS AT FAULT. REMOVED PROP. GOVERNOR AND SENT OUT FOR OVERHAUL.
- [SDR FA2021081200003](https://openairdocs.org/sdr/FA2021081200003), Jun 14, 2021: MAGNETO. FAILED. MAGNETO FAILURE, ENGINE STARTED RUNNING ROUGH. PILOT COULD HEAR WHAT WAS DESCRIBED AS A RUBBING SOUND. THE MAGNETO WAS SENT BACK TO THE MANUFACTURER. INSTALLED 
- [SDR FA2021081200004](https://openairdocs.org/sdr/FA2021081200004), Jun 14, 2021: MAGNETO. FAILED. MAGNETO FAILURE, ENGINE STARTED RUNNING ROUGH. PILOT COULD HEAR WHAT WAS DESCRIBED AS A RUBBING SOUND. THE MAGNETO WAS SENT BACK TO THE MANUFACTURER. INSTALLED 
- [SDR 2017FA0000182](https://openairdocs.org/sdr/2017FA0000182), Mar 8, 2017: MAGNETO. INOPERATIVE. ENGINE SHUT OFF AND WOULD NOT RESTART. LOCAL MAINTENANCE REPLACED LT MAGNETO AND IT FIXED THE ISSUE.
- [SDR 2014FA0000474](https://openairdocs.org/sdr/2014FA0000474), Aug 11, 2014: HANDLE. DAMAGED. MAIN CABIN DOOR OPENED DURING TAKEOFF ROLL, RESULTING IN AN ABORTED TAKEOFF. ON INSPECTION, THE CABIN DOOR HANDLE SPLINES WERE FOUND TO BE PARTIALLY STRIPPED. T
- [SDR 6CWA20140709001](https://openairdocs.org/sdr/6CWA20140709001), Jun 17, 2014: ENGINE. MAKING METAL. WHILE CONDUCTING CHECK RIDE AND FINISHED INSTRUMENT APPROACHES TO PSM AS PART OF PART 135 CHECK RIDE. AIRPLANE BEGAN TO SHAKE. OBSERVED RT ENGINE MANIFOLD PRESS
- [SDR CA131002008](https://openairdocs.org/sdr/CA131002008), Sep 23, 2013: O-RING. LEAKING. (CAN) HYDRAULIC SYSTEM PUMP, FLAPS & GEARS, IN CLIMB, GEARS DOWN WITH EMERGENCY HANDLE. POWER PACK FOUND EMPTY, LEAK BY LT EMERGENCY VALVE, REPLACED O-RING M97E
- [SDR CA121102001](https://openairdocs.org/sdr/CA121102001), Nov 1, 2012: SKIN. CRACKED. (CAN) DURING SCHEDULED INSPECTION, CRACKS WERE FOUND ON THE INBOARD LEADING EDGE SKIN THAT DOVE TAILS ONTO THE TOP OF THE MAIN SPAR INSIDE THE CABIN. CRACKS WER
- [SDR 2012FA0000668](https://openairdocs.org/sdr/2012FA0000668), Oct 2, 2012: TUBE. SPLIT. FAILURE OF TUBE WHILE ACFT SAT ON RAMP. FOUND SMALL SPLIT IN SIDE OF TUBE. 5TH FAILURE OF RUBBER TUBES EXPERIENCED WITH NO EVIDENCE OF UNDER OR OVER INFLATION.
- [SDR 9RVA2012FA0000062](https://openairdocs.org/sdr/9RVA2012FA0000062), Jan 21, 2012: CYLINDER HEAD. FAILED. ACFT HAD JUST DEPARTED ON PART 91 REPOSITIONING FLIGHT BACK HOME. APPROX 10 OR SO MINUTES AFTER DEPARTURE, WHILE LEVEL IN CRUISE FLIGHT AT 7000', RT ENGINE EXPE
- [SDR CA111115008](https://openairdocs.org/sdr/CA111115008), Nov 4, 2011: PUMP. LEAKING. (CAN) RT ENG POWER LOSS. FOUND OIL LEAK FROM THE DRAIN ON CROSS FEED LT PUMP. PUMP HAS BEEN REPLACED. 2 ENGS RUNNING & RETURNED TO SERVICE. NO PROBLEMS TO REPOR
- [SDR CA111115009](https://openairdocs.org/sdr/CA111115009), Nov 4, 2011: PUMP. LEAKING. (CAN) DURING PRE-FLIGHT INSPECTION AN OIL LEAK WAS OBSERVED ON THE RT SIDE BY THE PILOT. AFTER INVESTIGATION THE MECHANICAL GAS PUMP WAS REPLACED. RUN UP WAS PE
- [SDR CA110822006](https://openairdocs.org/sdr/CA110822006), Aug 18, 2011: LINK. BROKEN. (CAN) DURING GEAR RETRACTION AFTER TAKEOFF, THE GEAR IN-TRANSIT LIGHT DID NOT EXTINGUISH AND THE NOSE GEAR WAS VISUALLY VERIFIED AS PARTIALLY IN THE UP POSITION
- [SDR CA110429002](https://openairdocs.org/sdr/CA110429002), Apr 28, 2011: ROD. CRACKED. (CAN) DURING AN EVENT 3 INSPECTION, MAINTENANCE PERSONNEL FOUND CRACKS ON BOTH LT AND RT MLG HYDRAULIC CYLINDER ACTUATOR ROD, PN 35033-00, AT ROD END ATTACHMENT
- [SDR CA110307004](https://openairdocs.org/sdr/CA110307004), Mar 1, 2011: BEAM. CRACKED. (CAN) ONE INCH CRACK IS LOCATED ON BEAM ASSY LOCATED ON AFT SIDE OF LT WHEEL WELL AREA.
- [SDR CA110112004](https://openairdocs.org/sdr/CA110112004), Dec 7, 2010: BRACKET. CRACKED. ON REMOVAL OF RUDDER ASSY, FOUND TOP RUDDER HINGE P/N 16103-03 AND MIDDLE RUDDER HINGE BRACKET P/N 16103-02 CRACKED. THE CRACKS ARE LOCATED ON THE OUTSIDE DIAME
- [SDR CA101005002](https://openairdocs.org/sdr/CA101005002), Oct 5, 2010: BEAM. CRACKED. (CAN) CRACKED BEAM ASSY.
- [SDR CA101018011](https://openairdocs.org/sdr/CA101018011), Sep 27, 2010: BRACKET. BROKEN. RT INBD BRACKET, 31003-07, BRACKET REMPLACED, 4-57 DOUBLE INSP C/OUT. SYS TESTED OK. IN DESCENT, RT FLAP DIDN`T GO DOWN, THE PILOT THUS KEPT THE FLAPS UP FOR LA
- [SDR CA100813004](https://openairdocs.org/sdr/CA100813004), Jul 15, 2010: WARNING LIGHT. FAILED. ENGLISH VERSION AFTER THE MLG RETRACTION, THE "GEAR UP" LIGHT DID NOT LIGHT. THE ACFT RETURN TO LAND. DURING INSP, THE "DOWN LOCK" HOOK REMAINED WEDGED. THE GEA
- [SDR CA090903001](https://openairdocs.org/sdr/CA090903001), Aug 31, 2009: BUNGEE. BROKEN. 1/16 STABILATOR BUNGEE CABLE SEPARATED AT UPPER PULLEY WHERE IT MAKES A 90 DEGREE BEND.
- [SDR CA090616012](https://openairdocs.org/sdr/CA090616012), Jun 12, 2009: TUBE FRAME. CORRODED. (CAN) FUSELAGE FRAME TUBING, SPECIFICALLY LWR LONGERONS, FOUND TO HAVE SERIOUS EXTERNAL CORROSION. DETECTED BY ANOTHER AMO DURING MX, OUR AMO WAS BROUGHT IN TO 
- [SDR 2009FA0000466](https://openairdocs.org/sdr/2009FA0000466), May 5, 2009: KNOB. CORRODED. PROPELLER WAS DISASSEMBLED FOR O/H AND THE FOLLOWING WAS FOUND AT INSPECTION, THE PITCH CHANGE KNOBS ON BOTH BLADES ARE CORRODED AND ONE PITCH CHANGE KNOB HAS B
- [SDR 2009F00005](https://openairdocs.org/sdr/2009F00005), Dec 30, 2008: ENGINE. POWER LOSS. AFTER APPROX 30 MINUTES OF IFR FLIGHT AT 8000 FT WITH NO OUTSIDE EVIDENCE OF AIRFRAME ICING THE PILOT NOTICED LT ENG LOOSING FUEL PRESSURE AND MANIFOLD PRESSURE
- [SDR 2008FA0000874](https://openairdocs.org/sdr/2008FA0000874), Nov 18, 2008: DISTRIBUTOR. DAMAGED. SUBJECT PART APPEARS TO HAVE NOT RETAINED ITS LOWER BEARING THAT SUPPORTS THE DISTRIBUTOR GEAR. THE PART WAS FOUND TO BE BURNED AND THE BEARING HOLE MISSING THE
- [SDR 2008FA0000209](https://openairdocs.org/sdr/2008FA0000209), Apr 1, 2008: BREAKER POINTS. WORN. ENGINE BECAME INCREASINGLY DIFFICULT TO START, CHECKED IGNITION TIMING AND FOUND LT MAGNETO OUT OF TOLERANCE. INSPECTED LT MAGNETO, POINTS FAILED TO OPEN DUE TO
- [SDR 2008FA0000197](https://openairdocs.org/sdr/2008FA0000197), Mar 21, 2008: CYLINDER. SEPARATED. NR 3 CYLINDER SEPARATED FROM ENGINE CASE.
- [SDR CA080122005](https://openairdocs.org/sdr/CA080122005), Jan 11, 2008: YOKE. CRACKED. (CAN) DURING ANNUAL INSP, A CRACK WAS FOUND ON THE OB SIDE OF THE LT MAIN LANDING GEAR YOKE. THE CRACK WAS ALONG THE EDGE OF THE CASTING MARK AT THE TOP WHERE T
- [SDR NAH2007F00000](https://openairdocs.org/sdr/NAH2007F00000), Sep 7, 2007: NUT. FAILED. NR 3 CYLINDER DEPARTED THE ENGINE AFTER FAILURE OF THE CYLINDER HOLD DOWN NUTS TO MAINTAIN PROPER TORQUE. (3) ADDITIONAL CYLINDERS FROM THE SAME ENGINE WERE INS
- [SDR 2007F00051](https://openairdocs.org/sdr/2007F00051), Aug 22, 2007: CYLINDER HEAD. SEPARATED. CYLINDER HEAD SEPARATED FROM THE BARREL PRIOR TO DEPARTURE. THE ENGINE HAD BEEN SUFFICIENTLY WARMED UP AND THE GROUND RUN UP CHECKS HAD BEEN COMPLETED.
- [SDR CA070814003](https://openairdocs.org/sdr/CA070814003), Jul 7, 2007: SPRING. BROKEN. (CAN) RT LANDING GEAR DOWN LOCK SPRING (P/N 487-312) BROKE AND LODGED ITSELF BETWEEN THE HOOK AND THE LOCK OF THE UPLOCK BOX. THE GEAR COULD NOT MOVE AND THEN T
- [SDR CA070427007](https://openairdocs.org/sdr/CA070427007), Apr 25, 2007: LINK. BROKEN. (CAN) DURING GEAR RETRACTION THE PILOTS DID NOT GET A GEAR UP AND SAFE LIGHT, UPON VISUALLY INSPECTING THE GEAR WITH THE MIRRORS THE NOSE GEAR WAS SEEN TO BE DA
- [SDR CA070409005](https://openairdocs.org/sdr/CA070409005), Apr 6, 2007: SELECTOR. FAILED. (CAN) DURING FUNCTIONAL TEST PRIOR TO TAKEOFF, WHEN MOVING FUEL SELECTOR FROM OB TO IB TANKS THE ROLL PIN CONNECTING THE FUEL SELECTOR HANDLE TO THE LINKAGE FAI
- [SDR CA070208003](https://openairdocs.org/sdr/CA070208003), Jan 17, 2007: THROTTLE CABLE. FAILED. (CAN) DURING DESCENT THE RT THROTTLE DID NOT RESPOND. THE ENGINE WAS SHUTDOWN AND PROPELLER FEATHERED. UPON RETURN TO THE HANGAR, CABLE 30205-002 WAS REPLACED A
- [SDR 2006FA0001090](https://openairdocs.org/sdr/2006FA0001090), Nov 15, 2006: MAGNETO. FAILED. PILOT REPORTED THAT HE STARTED LT ENGINE AND THEN ATTEMPTED TO START RT ENGINE ON THE GROUND. RT ENGINE WOULD NOT FIRE. TROUBLESHOT AND TRACED PROBLEM TO LT MAG
- [SDR CA060712002](https://openairdocs.org/sdr/CA060712002), Jul 4, 2006: TUBE. CRACKED. (CAN) DUE TO HIGH WINDS THAT HIT THE RUDDER (WITHOUT CONTROL LOCKS INSTALLED) INSTALLED THE AIRCRAFT FOR DAMAGE. THE RUDDER PEDAL TUBE WAS FOUND CRACKED. THE PA
- [SDR CA060602002](https://openairdocs.org/sdr/CA060602002), May 26, 2006: TUBE. SEPARATED. (CAN) DURING REMOVAL OF A BIRDS NEST IN THE FRESH AIR INTAKE LOCATED IN THE NOSE OF THE AIRCRAFT THE HEATER EXHAUST TUBE WAS FOUND TO BE UNSERVICEABLE. THE TUBE
- [SDR NAH2006F00001](https://openairdocs.org/sdr/NAH2006F00001), Mar 9, 2006: CRANKCASE. CRACKED. AFTER DEPARTURE, THE PILOT NOTICED OIL LEAKAGE EMANATING FROM THE TOP FORWARD SEAM OF THE LT ENGINE COWLING. A SCAN OF THE ENG INSTRUMENTS WAS NOMINAL, HOWEVER 
- [SDR 2006FA0000167](https://openairdocs.org/sdr/2006FA0000167), Feb 3, 2006: CYLINDER HEAD. SEPARATED. CYLINDER HEAD SEPARATED FROM CYLINDER FOR REASONS UNKNOWN. (K)
- [SDR 2006FA0000633](https://openairdocs.org/sdr/2006FA0000633), Dec 13, 2005: LINE. BROKEN. THIS PART BROKE ON THE WELDED AREA NEXT TO B-NUT. ALL CLAMPS WERE PROPERLY LOCATED AND TIGHT. THIS FAILURE COULD HAVE BEEN FROM FATIGUE CAUSED BY OVERTORQUING B
- [SDR 386506171](https://openairdocs.org/sdr/386506171), Jul 1, 2005: TORQUE TUBE. CUT. PERFORMING AD 2003-09-13, FOUND TORQUE TUBE WORE/CUT BY LEFT RUDDER CABLE, 2 INCH LONG AND THRU TUBE WALL. TUBE HAS BEEN INSTALLED SINCE 1996 1100 HRS AGO.
- [SDR 2005FA0000943](https://openairdocs.org/sdr/2005FA0000943), Jul 1, 2005: TORQUE TUBE. CUT. PERFORMING AD 2003-09-13, FOUND TORQUE TUBE WORE/CUT BY LEFT RUDDER CABLE, 2 INCHES LONG AND THRU TUBE WALL. TUBE HAS BEEN INSTALLED SINCE 1996 1100 HRS AGO.
- [SDR 2005FA0000944](https://openairdocs.org/sdr/2005FA0000944), Jul 1, 2005: TORQUE TUBE. CUT. PERFORMING AD 2003-09-13, FOUND TORQUE TUBE WORE/CUT BY LEFT RUDDER CABLE, 2 INCHES LONG AND THRU TUBE WALL. TUBE HAS BEEN INSTALLED SINCE 1996 1100 HRS AGO.
- [SDR 20050605B](https://openairdocs.org/sdr/20050605B), Jul 1, 2005: TORQUE TUBE. CUT. IN PERFORMING AD 2003-09-13, FOUND TORQUE TUBE WORE/CUT BY LEFT RUDDER CABLE. 2 INCH LOG AND THRU TUBE WALL. TUBE HAS BEEN INSTALLED SINCE 1996 1100 HRS AGO.
- [SDR 2005FA0001041](https://openairdocs.org/sdr/2005FA0001041), Jul 1, 2005: STUD. BROKEN. AC WAS ENROUTE WHEN PILOT HEAR (PUFF) NOISE AND SAW OIL BEGINNING TO COME FROM ENGINE COMPARTMENT. HE THROTTLED BACK AND DID A PRECAUTIONARY LANDING AT THE NEAR
- [SDR CA050705002](https://openairdocs.org/sdr/CA050705002), Jun 30, 2005: BUSHING. MISSING. (CAN) UPON LANDING AND TAXI IN, RIGHT HAND GEAR COLLAPSED, NO PROP STRIKE OCCURRED. DRAG STRUT CENTER BOLT BROKE IN HALF, THUS THE GEAR FAIL. UPON INVESTIGATION
- [SDR CA050601005](https://openairdocs.org/sdr/CA050601005), May 25, 2005: WIRE. BROKEN. (CAN) NO INDICATION OF (NOSE GEAR DOWN). AFTER INSPECTION, WIRE REPAIRED ON LIGHT SOCKET. CO2 BOTTLE REPLACED, SEVERAL RETRACTIONS ACCOMPLISHED.
- [SDR 2005FA0000672](https://openairdocs.org/sdr/2005FA0000672), Apr 6, 2005: CRANKSHAFT. FAILED. ENGINE WAS DISASSEMBLED AND INSPECTED DUE TO CRANKSHAFT FAILURE. FOUND NR3 CHEEK BROKEN. THIS FAILURE CAUSED EXCESSIVE DAMAGE TO THE CRANKCASE, CAMSHAFT, NR1 AN
- [SDR 2005FA0000521](https://openairdocs.org/sdr/2005FA0000521), Mar 3, 2005: OIL FILTER. SEPARATED. BOTH ENGINE OIL FILTERS WERE OPENED AFTER AN OIL CHANGE. BOTH FILTERS HAD THE PAPER FILTER MATERIAL PULLED AWAY FROM THE METAL CRIMP HOLDING THE ENDS TOGETHER.
- [SDR 20050209](https://openairdocs.org/sdr/20050209), Feb 9, 2005: SHAFT. BROKEN. AT ENGINE DISASSEMBLY FOR OVERHAUL AFTER RUNNING FULL LIFE (1985.4 HRS) GOVERNOR IDLER GEAR SHAFT WAS FOUND BROKEN INSIDE THE GEAR. ENGINE RAN NORMALLY, NO OTHE
- [SDR 2005FA0000304](https://openairdocs.org/sdr/2005FA0000304), Feb 7, 2005: CYLINDER HEAD. CRACKED. DESCENDING IN FLIGHT NR 3 CYL ON RT ENG FAILED. ENG WAS SHUTDOWN AND FEATHERED. AC LANDED WITHOUT FURTHER INCIDENT. THERE WAS NO FIRE. POST INCIDENT INSP OF ARE

All 182: https://openairdocs.org/engine/lycoming-io-540-c4b5/reports.md

## STCs that may be installed (OpenAirDocs) (47)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC
- [STC SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc
- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company
- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc
- [STC SE00939WI](https://openairdocs.org/stc/SE00939WI): Installation of B&C Specialty Products Model BC 315-( ) Starter on Lycoming engines. B & C Specialty Products Inc
- [STC SE2387CE](https://openairdocs.org/stc/SE2387CE): Installation of B & C Speciality Products lightweight (10.2 pounds) engine starter P/N BC 315-100-1(12 volt) or P/N BC 315-100-3(24 volt). B & C Specialty Products Inc. Lists IO-540 Series
- [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 SE6WE](https://openairdocs.org/stc/SE6WE): Installation of two Roto-Master Turbochargers Model No. 3DT5FF10J2, P/N 600572-00 (formerly Rajay Model 315F10, P/N RJ0080-100, or 102). TALCO Aviation
- [STC SE01436LA](https://openairdocs.org/stc/SE01436LA): Installation of Firewall Forward Technologies LLC modified camshaft. Centri-lube Technologies LLC
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc
- [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp
- [STC SE09445SC](https://openairdocs.org/stc/SE09445SC): Installation of fuel injector nozzles. General Aviation Modifications Inc. Lists IO-540 Series
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists IO-540 Series
- [STC SE7509SW](https://openairdocs.org/stc/SE7509SW): Installation of any or all parts listed on Airmotive Engineering Drawing List No. 852-1, Rev. 1, dated 10/4/88, or later FAA approved revision. Continental Motors, Inc. Lists IO-540 Series
- [STC SE7667SW](https://openairdocs.org/stc/SE7667SW): Installation of parts listed on Drawing List No. 8810-3, Rev 6. Continental Motors, Inc. Lists IO-540 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists IO-540 Series
- [STC SE00218NY](https://openairdocs.org/stc/SE00218NY): Replacement of Lycoming starter with SKY-TEC 12 volt starter installed. Hartzell Engine Technologies, LLC. Lists IO-540 Series
- [STC SE00226NY](https://openairdocs.org/stc/SE00226NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to 24-volt DC source available to the starter. Hartzell Engine Technologies, LLC
- [STC SE00357NY](https://openairdocs.org/stc/SE00357NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter installed. Hartzell Engine Technologies, LLC. Lists IO-540 Series
- [STC SE2901NM](https://openairdocs.org/stc/SE2901NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE2902NM](https://openairdocs.org/stc/SE2902NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE00768CH](https://openairdocs.org/stc/SE00768CH): Replace Slick 6000, 6100, 6200 and 6300 series magnetos and TCM/Bendix S6-20, S6-200 and S6-1200 series magnetos with the Champion Limited Authority Spark Advance Regulator (LASARTM) ignition system. Champion Aerospace LLC. Lists IO-540 Series
- [STC SE01524CH](https://openairdocs.org/stc/SE01524CH): Replace Slick 6000, 6100, 6200, 6300, 4000, 4100, 4200, and 4300 series magnetos and TCM/Bendix S6-20, S6-200, S6-1200, S-20, S-200, and S-1200 series magnetos with Champion Limited Authority Spark Advance Regulator (LASAR ) Model 4755 and 6755 bush kit ignition systems. Champion Aerospace LLC
- [STC SE8193SW](https://openairdocs.org/stc/SE8193SW): Grind nitriden high compression cylinder barrles to plus .010 oversize and install SL75089 P10 piston, SL74242 P10 compression ring, and SL73857 P10 oil ring. Superior Air Parts Inc
- [STC SE611GL](https://openairdocs.org/stc/SE611GL): Incorporation of a fuel flow transducer. Shadin Avionics
- [STC SE01930NY](https://openairdocs.org/stc/SE01930NY): Installation of Casper Labs 90 degree oil filter housing adapter. Casper Labs Inc
- [STC SE7734SW](https://openairdocs.org/stc/SE7734SW): Modification of engine for operation with ethanol fuel. Shauck Dr Maxwell E Jr
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc
- [STC SE21WE](https://openairdocs.org/stc/SE21WE): Installation of Turbosupercharger 406610-3. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services
- [STC SE22WE](https://openairdocs.org/stc/SE22WE): Installation of AiResearch Turbosupercharger 406610-3. Approved for IO-540-J4A5 model. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services. Lists IO-540 Series
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation
- [STC SE00890LA](https://openairdocs.org/stc/SE00890LA): Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models. Nickson's Machine Shop Inc. Lists IO-540 Series
- [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. Exxon Company USA. Lists IO-540 Series
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation
- [STC SE835NE](https://openairdocs.org/stc/SE835NE): Installation of a Flowscan Model201B9 transducer. GEBE Instruments Corp
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists IO-540 Series
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists IO-540 Series
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co. Lists IO-540 Series
- [STC SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines. Perrigo & Steele Aircraft Engr Company. Lists IO-540 Series
- [STC SE244NE](https://openairdocs.org/stc/SE244NE): Installation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines. Mattituck Airbase, Inc. Lists IO-540 Series
- [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. Bel-Ray Company, Inc. Lists IO-540 Series
- [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists IO-540 Series
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists IO-540 Series
- [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines. Kling Oil Company. Lists IO-540 Series
- [STC SA01436DE](https://openairdocs.org/stc/SA01436DE) (historical): Installation of Firewall Forward Technologies, LLC modified camshaft. Centri-Lube Technologies LLC

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