# Lycoming AEIO-540 series

- Type: Engine model (FAA registry)
- Registry code: 41568
- Manufacturer (registry): LYCOMING
- Model: AEIO-540 SER
- Engine type: Reciprocating
- Power: 260 hp
- Data sheet: [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 433 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-aeio-540-series

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

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 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 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 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 2015-02-07](https://openairdocs.org/ad/2015-02-07): Propeller governor shaft set screw · Lycoming Engines AEIO-320-D1B, AEIO-360-A1E, AEIO-360-A1E6 and 10 more. Effective Mar 11, 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 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 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 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 83-22-04](https://openairdocs.org/ad/83-22-04): Injector Fuel Diaphragm Stem · Lycoming Engines AEIO-540-L1B5D, IO-540-AA1A5, IO-540-G1B5 and 30 more. Effective Nov 4, 1983
- [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

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 2002-23-06](https://openairdocs.org/ad/2002-23-06) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, AEIO-540-D4A5, AEIO-540-D4B5 and 46 more. Effective Nov 19, 2002
- [AD 2002-20-51](https://openairdocs.org/ad/2002-20-51) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, IO-540 Series (all), LTIO-540-F2BD and 39 more
- [AD 2000-18-53](https://openairdocs.org/ad/2000-18-53) (historical): Oil Filter Converter Plate Gaskets · Textron Lycoming, AVCO AEIO-540, IO-360-A1B6D, IO-360-A1D6D and 73 more
- [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

## Information bulletins (advisory) (13)

- [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-08-26R3](https://openairdocs.org/saib/NE-08-26R3): Magneto/Distributor. Issued Mar 31, 2011
- [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-08-26R1](https://openairdocs.org/saib/NE-08-26R1) (historical): Dual Magnetos. Issued Jul 8, 2008
- [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008
- [SAIB NE-05-89](https://openairdocs.org/saib/NE-05-89): . Issued Sep 30, 2005
- [SAIB NE-05-40](https://openairdocs.org/saib/NE-05-40): . Issued Mar 18, 2005
- [SAIB NE-03-18](https://openairdocs.org/saib/NE-03-18): . Issued Jan 22, 2003
- [SAIB NE-03-12](https://openairdocs.org/saib/NE-03-12): . Issued Dec 30, 2002
- [SAIB NE-01-22](https://openairdocs.org/saib/NE-01-22): . Issued May 11, 2001

## Registered aircraft (433, first 50)

- [N1010X](https://openairdocs.org/aircraft/N1010X): [Wright John D](https://openairdocs.org/faa-owner/WRIGHT%20JOHN%20D), [Brentwood, TN](https://openairdocs.org/faa-place/TN/Brentwood), built 2025, S/N MXS-005
- [N101DB](https://openairdocs.org/aircraft/N101DB): [Gildardo F Bravo](https://openairdocs.org/faa-owner/GILDARDO%20F%20BRAVO), [Mission, TX](https://openairdocs.org/faa-place/TX/Mission), S/N 101DB
- [N104MX](https://openairdocs.org/aircraft/N104MX): [Francis Scott P](https://openairdocs.org/faa-owner/FRANCIS%20SCOTT%20P), [Montclair, VA](https://openairdocs.org/faa-place/VA/Montclair), built 2011, S/N 11
- [N105JP](https://openairdocs.org/aircraft/N105JP): [Pittman Discover Flight LLC](https://openairdocs.org/faa-owner/PITTMAN%20DISCOVER%20FLIGHT%20LLC), [Oshkosh, WI](https://openairdocs.org/faa-place/WI/Oshkosh), S/N 5150
- [N105MM](https://openairdocs.org/aircraft/N105MM): [North Star Aviation Inc](https://openairdocs.org/faa-owner/NORTH%20STAR%20AVIATION%20INC), [Mankato, MN](https://openairdocs.org/faa-place/MN/Mankato), built 1998, S/N 071
- [N107BJ](https://openairdocs.org/aircraft/N107BJ): [Janowsky Bruce G](https://openairdocs.org/faa-owner/JANOWSKY%20BRUCE%20G), [Lakewood, NY](https://openairdocs.org/faa-place/NY/Lakewood), built 2003, S/N 6054
- [N10NS](https://openairdocs.org/aircraft/N10NS): [Torque Roll Aerobatics LLC](https://openairdocs.org/faa-owner/TORQUE%20ROLL%20AEROBATICS%20LLC), [Lincoln University, PA](https://openairdocs.org/faa-place/PA/Lincoln%20University), built 2007, S/N 1
- [N110PS](https://openairdocs.org/aircraft/N110PS): [Hartvigsen Thomas E](https://openairdocs.org/faa-owner/HARTVIGSEN%20THOMAS%20E), [Winchester, TN](https://openairdocs.org/faa-place/TN/Winchester), built 1996, S/N 5335
- [N111XT](https://openairdocs.org/aircraft/N111XT): [Patch Aero LLC](https://openairdocs.org/faa-owner/PATCH%20AERO%20LLC), [Boca Raton, FL](https://openairdocs.org/faa-place/FL/Boca%20Raton), built 2004, S/N 1188
- [N111XW](https://openairdocs.org/aircraft/N111XW): [United Air LLC](https://openairdocs.org/faa-owner/UNITED%20AIR%20LLC), [Walnut Creek, CA](https://openairdocs.org/faa-place/CA/Walnut%20Creek), built 1997, S/N 064
- [N114PS](https://openairdocs.org/aircraft/N114PS): [Pitts S2b LLC](https://openairdocs.org/faa-owner/PITTS%20S2B%20LLC), [Salinas, CA](https://openairdocs.org/faa-place/CA/Salinas), built 1998, S/N 6006
- [N114RM](https://openairdocs.org/aircraft/N114RM): [Immelman Leasing Company LLC](https://openairdocs.org/faa-owner/IMMELMAN%20LEASING%20COMPANY%20LLC), [Lompoc, CA](https://openairdocs.org/faa-place/CA/Lompoc), built 1999, S/N 6030
- [N117CL](https://openairdocs.org/aircraft/N117CL): [Icenogle Roger A](https://openairdocs.org/faa-owner/ICENOGLE%20ROGER%20A), [Inver Grove, MN](https://openairdocs.org/faa-place/MN/Inver%20Grove), built 1984, S/N 5061
- [N1187K](https://openairdocs.org/aircraft/N1187K): [Love Simplicity](https://openairdocs.org/faa-owner/LOVE%20SIMPLICITY), [Princeville, HI](https://openairdocs.org/faa-place/HI/Princeville), built 1980, S/N 318052175
- [N1191](https://openairdocs.org/aircraft/N1191): [Vmc Aviation Inc](https://openairdocs.org/faa-owner/VMC%20AVIATION%20INC), [Upland, CA](https://openairdocs.org/faa-place/CA/Upland), S/N 5284
- [N119DB](https://openairdocs.org/aircraft/N119DB): [Walker John D](https://openairdocs.org/faa-owner/WALKER%20JOHN%20D), [Neosho, MO](https://openairdocs.org/faa-place/MO/Neosho), built 1998, S/N 081
- [N125EX](https://openairdocs.org/aircraft/N125EX): [Wurster Gregory J](https://openairdocs.org/faa-owner/WURSTER%20GREGORY%20J), [Creston, IA](https://openairdocs.org/faa-place/IA/Creston), built 1995, S/N 012
- [N126BB](https://openairdocs.org/aircraft/N126BB): [G & M Aviation LLC](https://openairdocs.org/faa-owner/G%20%26%20M%20AVIATION%20LLC), [Kokomo, IN](https://openairdocs.org/faa-place/IN/Kokomo), built 2001, S/N 6046
- [N129SJ](https://openairdocs.org/aircraft/N129SJ): [Working Capital Group LLC](https://openairdocs.org/faa-owner/WORKING%20CAPITAL%20GROUP%20LLC), [Rogers, AR](https://openairdocs.org/faa-place/AR/Rogers), built 2001, S/N 129
- [N12CK](https://openairdocs.org/aircraft/N12CK): [Amoss Harold Lindsay III](https://openairdocs.org/faa-owner/AMOSS%20HAROLD%20LINDSAY%20III), [Redmond, OR](https://openairdocs.org/faa-place/OR/Redmond), built 1990, S/N 5179
- [N12QW](https://openairdocs.org/aircraft/N12QW): [All Aviation LLC](https://openairdocs.org/faa-owner/ALL%20AVIATION%20LLC), [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson), built 1984, S/N 5053
- [N1326K](https://openairdocs.org/aircraft/N1326K): [Plane Fun Inc Tr Trustee](https://openairdocs.org/faa-owner/PLANE%20FUN%20INC%20TR%20TRUSTEE), [Snellville, GA](https://openairdocs.org/faa-place/GA/Snellville), built 1995, S/N 5310
- [N133PS](https://openairdocs.org/aircraft/N133PS): [Brew City Acro LLC](https://openairdocs.org/faa-owner/BREW%20CITY%20ACRO%20LLC), [Milwaukee, WI](https://openairdocs.org/faa-place/WI/Milwaukee), built 2000, S/N 6037
- [N136SM](https://openairdocs.org/aircraft/N136SM): [Martens Aerosports LLC](https://openairdocs.org/faa-owner/MARTENS%20AEROSPORTS%20LLC), [Garden City, NY](https://openairdocs.org/faa-place/NY/Garden%20City), built 1998, S/N 066
- [N13EX](https://openairdocs.org/aircraft/N13EX): [Pitts Capital Of Nevada Inc](https://openairdocs.org/faa-owner/PITTS%20CAPITAL%20OF%20NEVADA%20INC), [Las Vegas, NV](https://openairdocs.org/faa-place/NV/Las%20Vegas), built 1999, S/N 087
- [N13KT](https://openairdocs.org/aircraft/N13KT): [Butler Bryan C](https://openairdocs.org/faa-owner/BUTLER%20BRYAN%20C), [Brenham, TX](https://openairdocs.org/faa-place/TX/Brenham), built 1992, S/N 5250
- [N13PR](https://openairdocs.org/aircraft/N13PR): [Tomlinson Dana R](https://openairdocs.org/faa-owner/TOMLINSON%20DANA%20R), [San Angelo, TX](https://openairdocs.org/faa-place/TX/San%20Angelo), S/N 115
- [N13ZE](https://openairdocs.org/aircraft/N13ZE): [Redge Akro LLC](https://openairdocs.org/faa-owner/REDGE%20AKRO%20LLC), [Hampshire, IL](https://openairdocs.org/faa-place/IL/Hampshire), built 1999, S/N Z-1A-01-0018
- [N142ML](https://openairdocs.org/aircraft/N142ML): [Guinn Gary L](https://openairdocs.org/faa-owner/GUINN%20GARY%20L), [Tulsa, OK](https://openairdocs.org/faa-place/OK/Tulsa), built 2004, S/N 3RX034
- [N142PS](https://openairdocs.org/aircraft/N142PS): [Sidney Aviation LLC](https://openairdocs.org/faa-owner/SIDNEY%20AVIATION%20LLC), [Sidney, NE](https://openairdocs.org/faa-place/NE/Sidney), built 1999, S/N 6022
- [N146PS](https://openairdocs.org/aircraft/N146PS): [Attitude Aerobatics LLC](https://openairdocs.org/faa-owner/ATTITUDE%20AEROBATICS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 6061
- [N148F](https://openairdocs.org/aircraft/N148F): [Ramsey William](https://openairdocs.org/faa-owner/RAMSEY%20WILLIAM), [Eagan, MN](https://openairdocs.org/faa-place/MN/Eagan), built 2000, S/N 6035
- [N148PS](https://openairdocs.org/aircraft/N148PS): [Asplundh Wayne B](https://openairdocs.org/faa-owner/ASPLUNDH%20WAYNE%20B), [Philadelphia, PA](https://openairdocs.org/faa-place/PA/Philadelphia), built 2001, S/N 6048
- [N148TA](https://openairdocs.org/aircraft/N148TA): [Business Revenue Corp](https://openairdocs.org/faa-owner/BUSINESS%20REVENUE%20CORP), [Newton, IA](https://openairdocs.org/faa-place/IA/Newton), built 1998, S/N 6014
- [N149TM](https://openairdocs.org/aircraft/N149TM): [Boundless Action Sports LLC](https://openairdocs.org/faa-owner/BOUNDLESS%20ACTION%20SPORTS%20LLC), [Gilroy, CA](https://openairdocs.org/faa-place/CA/Gilroy), S/N 5165
- [N14LP](https://openairdocs.org/aircraft/N14LP): [Therp Todd J](https://openairdocs.org/faa-owner/THERP%20TODD%20J), [Rigby, ID](https://openairdocs.org/faa-place/ID/Rigby), built 1991, S/N 5217
- [N153GM](https://openairdocs.org/aircraft/N153GM): [Fly High Aviation LLC](https://openairdocs.org/faa-owner/FLY%20HIGH%20AVIATION%20LLC), [Melrose Park, IL](https://openairdocs.org/faa-place/IL/Melrose%20Park), built 1992, S/N 5266
- [N15FB](https://openairdocs.org/aircraft/N15FB): [Propit Inc](https://openairdocs.org/faa-owner/PROPIT%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 018
- [N15TA](https://openairdocs.org/aircraft/N15TA): [Basham Kristina](https://openairdocs.org/faa-owner/BASHAM%20KRISTINA), [Danville, CA](https://openairdocs.org/faa-place/CA/Danville), built 2001, S/N 6045
- [N160DS](https://openairdocs.org/aircraft/N160DS): [Salcedo Daniel R](https://openairdocs.org/faa-owner/SALCEDO%20DANIEL%20R), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), built 2004, S/N 0014
- [N160FU](https://openairdocs.org/aircraft/N160FU): [Extreme Attitude Recovery & Aerobatics LLC](https://openairdocs.org/faa-owner/EXTREME%20ATTITUDE%20RECOVERY%20%26%20AEROBATICS%20LLC), [Cincinnati, OH](https://openairdocs.org/faa-place/OH/Cincinnati), built 1983, S/N 5021
- [N161FC](https://openairdocs.org/aircraft/N161FC): [Aps Asset Management Inc](https://openairdocs.org/faa-owner/APS%20ASSET%20MANAGEMENT%20INC), [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa), built 2001, S/N 133
- [N161JH](https://openairdocs.org/aircraft/N161JH): [Allison Daniel S Trustee](https://openairdocs.org/faa-owner/ALLISON%20DANIEL%20S%20TRUSTEE), [Jenner, CA](https://openairdocs.org/faa-place/CA/Jenner), built 1991, S/N 5232
- [N161PS](https://openairdocs.org/aircraft/N161PS): [Bond Robert E](https://openairdocs.org/faa-owner/BOND%20ROBERT%20E), [Knoxville, TN](https://openairdocs.org/faa-place/TN/Knoxville), built 1996, S/N 5339
- [N161TC](https://openairdocs.org/aircraft/N161TC): [Akrotown USA LLC](https://openairdocs.org/faa-owner/AKROTOWN%20USA%20LLC), [Tualatin, OR](https://openairdocs.org/faa-place/OR/Tualatin), S/N 5357
- [N162FC](https://openairdocs.org/aircraft/N162FC): [Sanders Racing Inc](https://openairdocs.org/faa-owner/SANDERS%20RACING%20INC), [Jasper, AL](https://openairdocs.org/faa-place/AL/Jasper), S/N 135
- [N1643](https://openairdocs.org/aircraft/N1643): [Elias Bernard J](https://openairdocs.org/faa-owner/ELIAS%20BERNARD%20J), [Hampton, GA](https://openairdocs.org/faa-place/GA/Hampton), built 1982, S/N 3008
- [N164EX](https://openairdocs.org/aircraft/N164EX): [Drj Management LLC](https://openairdocs.org/faa-owner/DRJ%20MANAGEMENT%20LLC), [Weston, CT](https://openairdocs.org/faa-place/CT/Weston), built 2003, S/N 164
- [N1651N](https://openairdocs.org/aircraft/N1651N): [Hartley John R](https://openairdocs.org/faa-owner/HARTLEY%20JOHN%20R), [Bozeman, MT](https://openairdocs.org/faa-place/MT/Bozeman), built 1995, S/N 5331
- [N166](https://openairdocs.org/aircraft/N166): [Vertical Works East LLC](https://openairdocs.org/faa-owner/VERTICAL%20WORKS%20EAST%20LLC), [Brielle, NJ](https://openairdocs.org/faa-place/NJ/Brielle), S/N 6025

All 433: https://openairdocs.org/engine/lycoming-aeio-540-series/aircraft.md

## NTSB investigations (115, newest 50)

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 WPR27LA018](https://openairdocs.org/ntsb/WPR27LA018), Oct 5, 2026: Christen Industries Pitts S-2B (N12CK), Yuma, AZ, investigation ongoing
- [NTSB ERA26LA276](https://openairdocs.org/ntsb/ERA26LA276), Jul 17, 2026: Christen Industries Pitts S-2 (N7RN), Porter Center, NY, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll.
- [NTSB WPR26LA026](https://openairdocs.org/ntsb/WPR26LA026), Oct 14, 2025: Extra Flugzeugbau EA 300/L (N300EX), Arlington, WA, substantial damage, investigation ongoing
- [NTSB ERA25FA231](https://openairdocs.org/ntsb/ERA25FA231), Jun 20, 2025: Pitts S2 (N79AV), Broadway, NC, substantial damage, 2 fatal, investigation ongoing
- [NTSB ERA25FA185](https://openairdocs.org/ntsb/ERA25FA185), Apr 24, 2025: MX Aircraft Tech PTY MXS (N530RH), Hampton, VA, substantial damage, 1 fatal. Probable cause: A counterweight plug that loosened during the accident flight, jammed the elevator, and resulted in loss of control during landing.
- [NTSB ERA24FA391](https://openairdocs.org/ntsb/ERA24FA391), Sep 23, 2024: Aviat S-1-11B (N5111B), Chapmansboro, TN, substantial damage, 1 fatal. Probable cause: The pilot’s loss of airplane control while performing an aerobatic maneuver, which resulted in the airplane entering an inverted flat spin at an altitude too low for recovery.
- [NTSB WPR24FA156](https://openairdocs.org/ntsb/WPR24FA156), May 19, 2024: Extra Flugzeugbau EA 300/L (N22MW), Bandera, WA, substantial damage, 1 fatal. Probable cause: The pilot’s decision to continue flight into icing conditions and inclement weather, which likely led to spatial disorientation when he attempted to divert from the planned course to the destination…
- [NTSB GAA22WA259](https://openairdocs.org/ntsb/GAA22WA259), Jul 16, 2022: MXR Technologies MXS (N540XX), Hajdúszoboszló, Hungary, substantial damage
- [NTSB WPR22FA240](https://openairdocs.org/ntsb/WPR22FA240), Jul 3, 2022: Extra Flugzeugbau EA 300/L (N343BH), Boulder City, NV, destroyed, 1 fatal. Probable cause: The failure of the pilot to maintain control of the airplane by exceeding the airplane’s critical angle of attack while maneuvering in a turning climb at a low altitude, which resulted in an…
- [NTSB ERA22LA238](https://openairdocs.org/ntsb/ERA22LA238), May 22, 2022: MX MXS (N104MX), Bealeton, VA, substantial damage. Probable cause: An inflight collision with a bird while conducting low level aerobatics.
- [NTSB WPR22LA153](https://openairdocs.org/ntsb/WPR22LA153), Apr 16, 2022: Stoddard Hamilton Glasair Super II (N90YY), Oxnard, CA, substantial damage. Probable cause: The pilot’s failure to maintain airplane control while on final approach, which resulted in a collision with a runway approach light.
- [NTSB WPR22LA088](https://openairdocs.org/ntsb/WPR22LA088), Jan 13, 2022: Extra Flugzeugbau EA 300/L (N203EX), Phoenix, AZ, substantial damage. Probable cause: The failure of the right brake due to the separation of the brake pad from the brake assembly. Also causal was the improper maintenance of the airplane, which resulted in the use of a brake pad that…
- [NTSB ERA21LA107](https://openairdocs.org/ntsb/ERA21LA107), Jan 13, 2021: Extra Flugzeugbau EA 300/L (N771JP), Pell City, AL, substantial damage. Probable cause: The pilot's mismanagement of the fuel supply, which resulted in fuel starvation. Contributing to the accident was the pilot’s failure to follow the manufacturer’s engine restart procedures after a…
- [NTSB WPR21LA076](https://openairdocs.org/ntsb/WPR21LA076), Jan 3, 2021: Extra Flugzeugbau EA 300/L (N52NL), Santa Monica, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll, which resulted in a ground-loop.
- [NTSB CEN20WA408](https://openairdocs.org/ntsb/CEN20WA408), Sep 19, 2020: Raven Aircraft Corppration Raven (N651RA), Moosburg an der Isar, Germany, destroyed, 2 fatal
- [NTSB WPR20CA174](https://openairdocs.org/ntsb/WPR20CA174), Apr 12, 2020: Extra EA 300 (N111XW), Concord, CA, substantial damage. Probable cause: The pilot's loss of directional control during the landing roll, which resulted in a ground loop.
- [NTSB CEN20CA146](https://openairdocs.org/ntsb/CEN20CA146), Apr 10, 2020: Pitts S2 (N487J), Fort Worth, TX, substantial damage. Probable cause: The pilot's inadequate preflight inspection of the fuel level, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB GAA19CA577](https://openairdocs.org/ntsb/GAA19CA577), Sep 28, 2019: Pitts S2 (N5310S), Morrisville, VT, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and nose down.
- [NTSB CEN19FA270](https://openairdocs.org/ntsb/CEN19FA270), Aug 16, 2019: Pitts S2 (N600DF), New Orleans, LA, destroyed, 2 fatal. Probable cause: A loss of control for undetermined reasons.
- [NTSB WPR19LA218](https://openairdocs.org/ntsb/WPR19LA218), Aug 14, 2019: Extra EA300 (N19AM), Mesa, AZ, substantial damage. Probable cause: The flight instructor’s operation of the airplane outside of the manufacturer’s limitations, which resulted in fuel starvation and a partial loss of engine power. Contributing to the accident was an…
- [NTSB GAA19CA021](https://openairdocs.org/ntsb/GAA19CA021), Oct 9, 2018: Aviat S (N126BB), Hampton, GA, substantial damage. Probable cause: The pilot’s failure to see and avoid power wires during approach.
- [NTSB CEN18LA127](https://openairdocs.org/ntsb/CEN18LA127), Mar 25, 2018: MX MXS (N540JH), Fulton, TX, substantial damage. Probable cause: A total loss of engine power due to the fatigue failure of the crankshaft, which resulted in the pilot’s forced landing to an abandoned airport and the airplane’s subsequent impact with debris on the…
- [NTSB CEN16WA160](https://openairdocs.org/ntsb/CEN16WA160), Apr 17, 2016: Extra Flugzeugbau EA 300/L (N13DK), Cozumel, Mexico, destroyed, 1 fatal
- [NTSB GAA16CA127](https://openairdocs.org/ntsb/GAA16CA127), Feb 12, 2016: Aviat S-2 (N57BC), Santa Paula, CA, minor damage. Probable cause: The tailwheel pilot's failure to see and avoid a stationary airplane performing a run-up, which resulted in a ground collision.
- [NTSB WPR15LA255](https://openairdocs.org/ntsb/WPR15LA255), Sep 2, 2015: Extra Flugzeugbau EA 300/L (N4BM), Jerome, ID, destroyed. Probable cause: The pilot's failure to maintain clearance from terrain while conducting a low-altitude aerobatic maneuver.
- [NTSB CEN15WA364](https://openairdocs.org/ntsb/CEN15WA364), Aug 16, 2015: MX MX2 (N88MX), Châteauneuf-sur-Cher, France, destroyed
- [NTSB CEN15FA282](https://openairdocs.org/ntsb/CEN15FA282), Jun 27, 2015: Christen Industries Pitts S-2B (N877UP), Cameron, MO, substantial damage, 1 fatal. Probable cause: The pilot’s failure to maintain airplane control during a low-level aerobatic flight maneuver.
- [NTSB ERA15LA210](https://openairdocs.org/ntsb/ERA15LA210), May 14, 2015: Aviat Pitts S-2B (N110PS), Tullahoma, TN, minor damage. Probable cause: The pilot’s inadequate visual lookout, which resulted in his airplane landing on top of the other airplane.
- [NTSB ERA15CA037](https://openairdocs.org/ntsb/ERA15CA037), Oct 28, 2014: Aviat S 2C (N340BF), Rutland, VT, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing rollout in gusty crosswind conditions, which resulted in a ground loop and subsequent substantial damage to the airplane.
- [NTSB ERA14CA379](https://openairdocs.org/ntsb/ERA14CA379), Aug 9, 2014: Aviat Pitts S2B (N893DC), Lakeville, NY, substantial damage. Probable cause: The pilot's decision to favor the right side of the relatively narrow turf runway while landing, resulting in inadvertent contact with tall grass and a berm.
- [NTSB WPR14LA329](https://openairdocs.org/ntsb/WPR14LA329), Aug 5, 2014: Christen Industries Pitts S 2B (N88EW), Oceanside, CA, substantial damage. Probable cause: The total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s inadequate fuel planning.
- [NTSB CEN14CA533](https://openairdocs.org/ntsb/CEN14CA533), May 31, 2014: Aviat Pitts S 2B (N9YH), Grants, NM, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane during landing in gusty wind conditions.
- [NTSB WPR14LA114](https://openairdocs.org/ntsb/WPR14LA114), Jan 26, 2014: Pitts S2C (N102ZT), Roseburg, OR, substantial damage. Probable cause: The pilot’s loss of orientation while scanning for airport traffic during the turn from the base to final legs of the traffic pattern, which resulted in his failure to maintain clearance from a tree.
- [NTSB WPR14LA065](https://openairdocs.org/ntsb/WPR14LA065), Dec 9, 2013: Aviat S 2C (N44HV), Chandler, AZ, substantial damage. Probable cause: The pilot’s failure to maintain airplane control during landing, which resulted in impact with a runway identifier sign, and the flight instructor’s delayed remedial action to take the controls and…
- [NTSB WPR14LA025](https://openairdocs.org/ntsb/WPR14LA025), Oct 20, 2013: Aviat S2 (N15TA), Livermore, CA, substantial damage. Probable cause: Failure of the pilots of the Pitts airplane to maneuver the airplane as necessary to observe the taxi route and avoid the Cessna airplane ahead. Contributing to the accident was the local…
- [NTSB CEN13LA467](https://openairdocs.org/ntsb/CEN13LA467), Jul 16, 2013: Christen Industries Pitts S-2B (N519ZB), Dalton, OH, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any mechanical malfunctions or failures that would have precluded…
- [NTSB WPR12LA407](https://openairdocs.org/ntsb/WPR12LA407), Sep 8, 2012: Moore Edward R MXS (N21MX), Borrego Springs, CA, substantial damage, 1 fatal. Probable cause: The pilot’s inability to maintain control of the airplane following the loss of aileron and elevator control due to the forward flight control torque tube assembly’s detachment from the forward…
- [NTSB WPR12FA155](https://openairdocs.org/ntsb/WPR12FA155), Apr 8, 2012: Extra Flugzeugbau EA-300 (N45R), Salinas, CA, substantial damage, 2 fatal. Probable cause: A loose portable XM-GPS antenna that migrated to the tail section of the airplane and jammed the elevator bell crank. Contributing to the accident was the pilot’s failure to account for the cockpit…
- [NTSB WPR11LA458](https://openairdocs.org/ntsb/WPR11LA458), Sep 19, 2011: Aviat Pitts S-2B (N46BT), Redlands, CA, substantial damage. Probable cause: The pilot’s failure to maintain airspeed while maneuvering, which resulted in an aerodynamic stall. Contributing to the accident was the pilot’s impairment from alcohol.
- [NTSB WPR10LA426](https://openairdocs.org/ntsb/WPR10LA426), Aug 24, 2010: Grob-Werke G 120A (N865AF), Buckeye, AZ, substantial damage. Probable cause: The student pilot's improper flare, which resulted in a hard landing.
- [NTSB CEN10RA579](https://openairdocs.org/ntsb/CEN10RA579), Aug 17, 2010: Zivko Aeronautics Edge 540 (N540WC), Toledo, Spain, destroyed, 1 fatal
- [NTSB CEN10LA295](https://openairdocs.org/ntsb/CEN10LA295), May 29, 2010: Pitts Aerobatics S-2B (N260PK), Amarillo, TX, destroyed. Probable cause: The fracture of the fuel pump housing for undetermined reasons.
- [NTSB ERA09LA388](https://openairdocs.org/ntsb/ERA09LA388), Jul 8, 2009: Christen Industries Pitts S-2B (N113DW), Oakland, MS, substantial damage. Probable cause: A total loss of engine power while maneuvering (after performing aerobatics) for undetermined reasons.
- [NTSB CEN09CA287](https://openairdocs.org/ntsb/CEN09CA287), May 9, 2009: Pitts Aerobatics S-2B (N6027V), Muskogee, OK, substantial damage. Probable cause: Inadequate supervision by the certified flight instructor, resulting in a delayed stall recovery attempt.
- [NTSB WPR09LA203](https://openairdocs.org/ntsb/WPR09LA203), Apr 20, 2009: Extra EA-300 (N101PK), Santa Barbara, CA, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain clearance with terrain for undetermined reasons while performing aerobatics.
- [NTSB ERA09LA188](https://openairdocs.org/ntsb/ERA09LA188), Mar 9, 2009: MXR Technologies MX2 (N262MX), Dade City, FL, substantial damage, 2 fatal. Probable cause: An in-flight loss of aircraft control for an undetermined reason.
- [NTSB DEN08FA100](https://openairdocs.org/ntsb/DEN08FA100), Jun 5, 2008: Extra Flugzeugbau EA 300/L (N12XT), Gothenburg, NE, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain aircraft control after encountering instrument meteorological conditions. Contributing to the accident were the pilot's recent usage of Marihuana, his impaired…
- [NTSB LAX08FA134](https://openairdocs.org/ntsb/LAX08FA134), May 9, 2008: Extra Flugzeugproduktions-GMBH EA-300/L (N133EE), Queen Creek, AZ, substantial damage, 2 fatal. Probable cause: The loss of aircraft control due to an undetermined rudder malfunction.
- [NTSB NYC07CA198](https://openairdocs.org/ntsb/NYC07CA198), Aug 19, 2007: Christen Industries Pitts S-2B (N487J), Springfield, TN, substantial damage. Probable cause: The pilot's inadequate compensation for wind conditions during landing.
- [NTSB SEA07CA033](https://openairdocs.org/ntsb/SEA07CA033), Dec 12, 2006: Extra Flugzeugbau EA 300/L (N91BH), Boulder City, NV, substantial damage. Probable cause: The pilot-in-command's failure to maintain directional control of the airplane during takeoff.

All 115: https://openairdocs.org/engine/lycoming-aeio-540-series/ntsb.md

## FAA accident and incident reports (187, newest 50)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20260909012389I](https://openairdocs.org/incident/20260909012389I), Sep 9, 2026: Bowen Dudley H Jr SKYBOLT A E (N101DB), Crockett, TX, Minor damage. The Houston FSDO inspector interviewed the pilot, [privacy data omitted] at Crockett, Texas (dkr). Mr. Cook said he was landing and at touchdown he bounced the…
- [Incident 20251104015919I](https://openairdocs.org/incident/20251104015919I), Nov 4, 2025: Aviat Aircraft Inc S-2C (N57BC), Somerset, PA, Minor damage. Pilot stated He lined up on runway 7. As he was about to land (at the threshold) he noticed the windsock had a tailwind to runway 7. He knew the winds were…
- [Accident 20251014014819A](https://openairdocs.org/incident/20251014014819A), Oct 14, 2025: Extra Flugzeugbau Gmbh EA 300/L (N300EX), Arlington, WA, Substantial damage. N300EX, an Extra 300L aircraft, started its takeoff roll at Arlington airport (kawo) runway 34. About three seconds into the takeoff roll and about 50 yards…
- [Accident 20250620008429A](https://openairdocs.org/incident/20250620008429A), Jun 20, 2025: Pitts Aerobatics S-2B (N79AV), Broadway, NC, Destroyed, 2 fatal. A Pitts Aerobatics S-2B departed raleigh executive jetport (ktta) with two people on-board at 0853 on 06/20/2025 for a personal flight. Aircraft turned left to…
- [Incident 20250501008319I](https://openairdocs.org/incident/20250501008319I), May 1, 2025: Avions Mudry Cie CAP 232 (N659DM), San Antonio, TX, Minor damage. Pilot stated that he turned onto rwy 4 and began his final engine check when the aircraft tail pitched up from a gust of wind causing the propeller to strike…
- [Accident 20240923014779A](https://openairdocs.org/incident/20240923014779A), Sep 23, 2024: Aviat Aircraft Inc S-1-11B (N5111B), Ashland City, TN, Substantial damage, 1 fatal. On September 23, 2024, about 1357 central daylight time, an experimental Aviat Aircraft Inc S-1-11B airplane, [privacy data omitted], was substantially damaged…
- [Incident 20240724010519I](https://openairdocs.org/incident/20240724010519I), Jul 24, 2024: Mcilraith Glen SH-3R (N687BC), Lake Village, AR, Minor damage. The aircraft departed from jackson-medgar wiley evers (kjan) under instrument meteorological conditions (IMC) with an IFR flight plan. Before takeoff, the…
- [Incident 20240720010099I](https://openairdocs.org/incident/20240720010099I), Jul 20, 2024: Extra Flugzeugbau Gmbh EA 300/L (N53NL), Stow, MA, Minor damage. On July 20, 2024 the aircraft was performing aerobatic practice and elected to stop at the 6B6 airport for fuel prior to returning to their home base of bed.…
- [Accident 20240519019729A](https://openairdocs.org/incident/20240519019729A), May 19, 2024: Extra Flugzeugbau Gmbh EA 300/L (N22MW), Bandera, WA, Destroyed, 1 fatal. On may 19, 2024, received call from roc around 2046 hour reporting aircraft [privacy data omitted] was missing. On may 20, 2024, received call from roc around…
- [Incident 20230703007389I](https://openairdocs.org/incident/20230703007389I), Jul 3, 2023: Extra Flugzeugbau Gmbh EA 300/L (N98TS), Burlington, VT, Minor damage. Btv - 07/03/2023/1253EDT - aircraft [privacy data omitted]/ea 300L. During the take-off roll canopy departed the aircraft due to the canopy locking mechanism…
- [Incident 20230510004699I](https://openairdocs.org/incident/20230510004699I), May 10, 2023: Extra Flugzeugbau Gmbh EA-300 (N300UY), Edwards, CA, Minor damage. Pilot was performing a snap roll when the right-hand rudder cable broke. He was able to fly back to edw and on landing he did not have any rudder authority…
- [Incident 20230207003709I](https://openairdocs.org/incident/20230207003709I), Feb 7, 2023: Extra Flugzeugbau Gmbh EA 300/L (N207LH), Deland, FL, Destroyed. On 02/07/2023, at approximately 1730, [privacy data omitted], an EA-300, caught fire while taxing on the airport taxiway. The aircraft had just came out of a…
- [Incident 20220729013589I](https://openairdocs.org/incident/20220729013589I), Jul 29, 2022: Christen Industries Inc PITTS S-2B (N77TW), Livermore, CA, Minor damage. The canopy departed the aircraft after takeoff on the climb out. The canopy landed on airport property inside the fencing. No one was near the canopy landing…
- [Accident 20220703011699A](https://openairdocs.org/incident/20220703011699A), Jul 3, 2022: Extra Flugzeugbau Gmbh EA 300/L (N343BH), Boulder City, NV, Destroyed, 1 fatal. On 07/03/2022 at approximately 1548UTC, (0748PDT),[privacy data omitted], a 1996 Extra Flugzeugbau Gmbh ea 300/L, [privacy data omitted] fixed wing single…
- [Accident 20220522008189A](https://openairdocs.org/incident/20220522008189A), May 22, 2022: Mx Aircraft LLC MXS (N104MX), Bealeton, VA, Substantial damage. Investigation. N104MX is an aerobatic airplane based at warrenton municipal airport (khwy). The airplane was being operated in the conduct of an aerobatic…
- [Accident 20220416005459A](https://openairdocs.org/incident/20220416005459A), Apr 16, 2022: Priester Austin GLASAIR SUPER IIS-TD (N90YY), Oxnard, CA, Substantial damage. On final approach for landing on runway 25R, pilot stated that the aircraft encountered a wind shear, and lost altitude. Pilot then tried regaining altitude,…
- [Accident 20220113000589A](https://openairdocs.org/incident/20220113000589A), Jan 13, 2022: Extra Flugzeugbau Gmbh EA 300/L (N203EX), Mesa, AZ, Substantial damage. Pilot of N203EX taxied out for formation flight. During run-up, pilot noticed tail started to move and right brake was a little mushy. The pilot pumped the…
- [Incident 20211001016569I](https://openairdocs.org/incident/20211001016569I), Oct 1, 2021: Christen Industries Inc PITTS S-2B (N287A), Mansfield, OH, Minor damage. Upon landing at MFD, on runway 32, aircraft veered left. Pilot input power and corrected to the right. Pilot then made one last correction and the aircraft…
- [Accident 20210112001519A](https://openairdocs.org/incident/20210112001519A), Jan 12, 2021: Extra Flugzeugbau Gmbh EA 300/L (N771JP), Pell City, AL, Substantial damage. During VFR flight from kgad to kplr pilot stated he experienced engine failure during approach phase to the kplr airport at approximately 2000 ft MSL. Pilot…
- [Accident 20210102001589A](https://openairdocs.org/incident/20210102001589A), Jan 2, 2021: Extra Flugzeugbau Gmbh EA 300/L (N52NL), Santa Monica, CA, Substantial damage. On January 02, 2021 at approximately 16:15, N52NL entered into a partial ground loop during landing rollout. This caused the left landing gear to collapse and…
- [Incident 20200804013389I](https://openairdocs.org/incident/20200804013389I), Aug 4, 2020: Aerotek Inc PITTS S-2B (N222JD), Brighton, CO, Minor damage. On August 4, 2020, at 0830 local time, pitts S-2B, N222JD suffered a hard landing at CO12 Van Aire Airport. There were two crewmembers on board the aircraft,…
- [Accident 20200412001009A](https://openairdocs.org/incident/20200412001009A), Apr 12, 2020: Extra Flugzeugbau Gmbh EA-300 (N111XW), Concord, CA, Substantial damage. On 04/12/2020 at approx. 1430 PST N111XW was taxiing off the runway when the airplane experienced a pilot induced ground loop. The propeller struck the ground…
- [Accident 20200410005929A](https://openairdocs.org/incident/20200410005929A), Apr 10, 2020: Christen Industries Inc PITTS S-2B (N487J), Fort Worth, TX, Substantial damage. [privacy data omitted] PIC of N487J departed 2TE2 with one passenger on board. N487J experience loss of engine power at approximately 2,000 feet MSL. [privacy…
- [Incident 20200302009979I](https://openairdocs.org/incident/20200302009979I), Mar 2, 2020: Grob-Werke G 120A (N864AF), Goodyear, AZ, Minor damage. CFI and student were doing touch and goes at mobile, AZ (1AZ0) and due to a hard landing the right main landing gear departed the aircraft. This was unknown to…
- [Accident 20190928023119A](https://openairdocs.org/incident/20190928023119A), Sep 28, 2019: Aerotek Inc PITTS S-2B (N5310S), Morrisville, VT, Substantial damage. Pilot in command and only occupant of this aerobatic bi-wing airplane stated that he had completed aerobatic flight in the aerobatic box adjacent to runway…
- [Accident 20190816008939A](https://openairdocs.org/incident/20190816008939A), Aug 16, 2019: Aerotek Inc PITTS S-2B (N600DF), New Orleans, LA, Destroyed, 2 fatal. Aircraft was totally destroyed after it impacted the ground and burst into flames. Lycoming engines? Air safety investigator examined the engine on August 18,…
- [Accident 20190814014209A](https://openairdocs.org/incident/20190814014209A), Aug 14, 2019: Extra Flugzeugbau Gmbh EA 300/L (N19AM), Mesa, AZ, Substantial damage. On 14 aug 2019, the PIC on aircraft N19AM, was instructing a student of aviation performance solutions (a part 141 school), on a part 91 flight. The PIC stated…
- [Incident 20181030021232I](https://openairdocs.org/incident/20181030021232I), Oct 30, 2018: Skip Stewart PITTS S-2S (N540SS), Millington, TN, Minor damage. 10/30/2018: At 0900 local, pitts aircraft N540SS was taxing from runway 22 to corporate hangar #125 via c and e taxiways. EC-130 helicopter N811HW was parked…
- [Accident 20181009019669A](https://openairdocs.org/incident/20181009019669A), Oct 9, 2018: Aviat Aircraft Inc S-2C (N126BB), Hampton, GA, Substantial damage. The aircraft departed Henry County Airport (khmp) for a landing zone Survey flight for an upcoming airshow at atlanta motor speedway. The survey flight was to…
- [Accident 20180325010149A](https://openairdocs.org/incident/20180325010149A), Mar 25, 2018: Mx Aircraft LLC MXS (N540JH), Fulton, TX, Substantial damage. Pilot departed nas kingsville (knqi) approximately 16:20 local time with 57 gallons of fuel. Aircraft climbed to 11500 ft enroute to red river airport…
- [Incident 20170819017199I](https://openairdocs.org/incident/20170819017199I), Aug 19, 2017: Aviat Inc PITTS S-2B (N58DE), Sherman, TX, Minor damage. On 08-19-2017 while praticeing aerobatics in the pratice box located at the Sherman airport (kgyi) the S2B pitts aircraft suffered a right rudder cable failure…
- [Incident 20170219007749I](https://openairdocs.org/incident/20170219007749I), Feb 19, 2017: Aviat Inc PITTS S-2B (N260PA), Joplin, MO, Minor damage. Aircraft was departing jln when the canopy departed the aircraft. Canopy hit right lower wing, right horizontal, and right side of rudder as it departed. All…
- [Incident 20160720008709I](https://openairdocs.org/incident/20160720008709I), Jul 20, 2016: Pzl-Mielec M2601 (N260AW), Corvallis, OR, Minor damage. Nose gear down and locked green light indication was not illuminated. Pilot cycled the gear several times and still no nose gear down and locked green…
- [Incident 20160226001839I](https://openairdocs.org/incident/20160226001839I), Feb 26, 2016: Christen Industries Inc PITTS S-2B (N6038S), Pocahontas, AR, Minor damage. On February 26, 2016 at 1215 CST, N6038S, a pitts S2B, registered to the operator of the aircraft, experienced a hard landing at the Pocahontas, AR (M70)…
- [Accident 20160212001922A](https://openairdocs.org/incident/20160212001922A), Feb 12, 2016: Aviat Aircraft Inc S-2C (N57BC), Santa Paula, CA, Minor damage. On 02/12/2016 about 1500 the pilot, william cronick landed N57BC at szp airport. While taxiing back towards runway 22 the pilot did not see a stopped aircraft,…
- [Incident 20151212021359I](https://openairdocs.org/incident/20151212021359I), Dec 12, 2015: Extra Flugzeugbau Gmbh EA 300/L (N52NL), Westfield, MA, Minor damage. Pilot closed canopy prior to take off, upon advancing the throttle, the canopy flew open damaging the canopy.
- [Incident 20150925021709I](https://openairdocs.org/incident/20150925021709I), Sep 25, 2015: Zivko Aeronautics Inc EDGE 540 (N540BF), Denton, TX, Minor damage. Pilot stated he was making a landing touched bounced up and helded the aircraft controls it hit agian and the wheel came off.
- [Accident 20150901024149A](https://openairdocs.org/incident/20150901024149A), Sep 1, 2015: Extra Flugzeugbau Gmbh EA 300/L (N4BM), Jerome, ID, Destroyed. The aircraft came to rest in a corn field approximately 1.5 miles southeast from the Jerome, ID airport. The aircraft came in at a relatively low angle that is…
- [Accident 20150627009559A](https://openairdocs.org/incident/20150627009559A), Jun 27, 2015: Christen Industries Inc PITTS S-2B (N877UP), Cameron, MO, Destroyed, 1 fatal. The pilot was performing an aerobatics demonstration routine while participating in a part 91 airshow. While performing a maneuver, the pilot was unable to…
- [Accident 20150513006322A](https://openairdocs.org/incident/20150513006322A), May 13, 2015: Aviat Inc PITTS S-2B (N110PS), Tullahoma, TN, Substantial damage. On a VFR day two aircraft; N110PS a pitts S-2B and N675GM a v star experimental light sport aircraft made contact during landing phase. The pitts aircraft…
- [Incident 20141111021499I](https://openairdocs.org/incident/20141111021499I), Nov 11, 2014: Pzl-Mielec M2601 (N2601M), Lynchburg, VA, Minor damage. A/c landed on runway 22 with nose gear retracted. Minor damage to nose gear door, engine exhuast pipe and two propellor blade tips. Investigation found that…
- [Accident 20141028021399A](https://openairdocs.org/incident/20141028021399A), Oct 28, 2014: Aviat Aircraft Inc S-2C (N340BF), Rutland, VT, Substantial damage. Pilot landed at rut airport with substantial gusting winds. Upon touchdown, aircraft ground looped, causing damage to tail, elevator, right wing tip, right…
- [Accident 20140809012389A](https://openairdocs.org/incident/20140809012389A), Aug 9, 2014: Christen Industries Inc PITTS S-2B (N893DC), Lakeville, NY, Substantial damage. On 8/11/2014 I was tasked by my frontline supervisor of an incident which happened at the Lakeville, NY (NY15) airport on 8/09/2014 involving a pitts S-2B…
- [Accident 20140805013549A](https://openairdocs.org/incident/20140805013549A), Aug 5, 2014: Christen Industries Inc PITTS S-2B (N88EW), Oceanside, CA, Substantial damage. I arrived at the north/ east corner of highway 76 and foussat rd. at approximately 1:15 pm August 5, 2014 and greeted by officer randy markham. Aircraft N88EW…
- [Incident 20140601008769I](https://openairdocs.org/incident/20140601008769I), Jun 1, 2014: Aviat Aircraft Inc S-2C (N57BC), Camarillo, CA, Minor damage. Lower right aileron connection bolt failed or came undone. Aileron folded vertically, bending left side bracket/hinge. Pilot landed safely.
- [Accident 20140126000919A](https://openairdocs.org/incident/20140126000919A), Jan 26, 2014: Aviat Aircraft Inc S-2C (N102ZT), Roseburg, OR, Substantial damage. While in his turn for final for runway 35 (while keeping visual with runway) the PIC adjusted his turn to avoid other aircraft in pattern yet failed to notice…
- [Accident 20131209025819A](https://openairdocs.org/incident/20131209025819A), Dec 9, 2013: Aviat Aircraft Inc S-2C (N44HV), Chandler, AZ, Substantial damage. A pitts S2-C airplane was damaged following a loss of control during an instructional flight. Substanial damage was confirmed by airworthiness inspector. The…
- [Accident 20131020021452A](https://openairdocs.org/incident/20131020021452A), Oct 20, 2013: Aviat Aircraft Inc S-2C (N15TA), Livermore, CA, Substantial damage. Pitts aircraft landed on runway 25R at Livermore, CA. Tower instructed to turn left on taxiway golf, hold short of 25L and remain on tower frequency. Pilot…
- [Incident 20130815014879I](https://openairdocs.org/incident/20130815014879I), Aug 15, 2013: Extra Flugzeugbau Gmbh EA-300 (N300FU), Long Beach, CA, No damage. N300FU, Extra, EA-300, s/n 031, departed on a test flight and declared an emergency due to a stuck throttle. Pilot landed aircraft on runway 25L without…
- [Accident 20130716013509A](https://openairdocs.org/incident/20130716013509A), Jul 16, 2013: Christen Industries Inc PITTS S-2B (N519ZB), Dalton, OH, Substantial damage. N519ZB departed akron fulton airport, with [privacy data omitted] acting as PIC with a new student pilot, en route to [privacy data omitted] aerobatic box…

All 187: https://openairdocs.org/engine/lycoming-aeio-540-series/incidents.md

## Service difficulty reports (21)

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

- [SDR 2026FA0000637](https://openairdocs.org/sdr/2026FA0000637), Aug 13, 2026: SERVO. FAULTED. PILOT REPORTED THE FUEL PRESSURE PEGGED MAX PRESSURE CAUSING THE GAUGE TO BECOME INOP. IT WAS REPLACED AND AGAIN THE GAUGE WENT TO MAX & BECAME INOP, THE FUEL F
- [SDR 2026FA0000344](https://openairdocs.org/sdr/2026FA0000344), May 9, 2026: THRUST BUTTON. MELTED. UPON INSPECTION AFTER MAJOR ENGINE OVERHAUL, IT WAS DISCOVERED THAT ALL ROCKER SHAFT THURST BUTTONS HAD EITHER PARTIALLY OR COMPLETELY MELTED. MELTED PLASTIC DE
- [SDR 2015FA0000194](https://openairdocs.org/sdr/2015FA0000194), May 4, 2015: RELAY. FAULTY. ON CLIMBOUT WHILE MANUALLY DRIVING THE RUDDER TRIM WITH THE RUDDER TRIM SWITCH, THE RUDDER TRIM "RAN AWAY" FULL RT. PILOT COULD DRIVE IT BACK TO THE LT WITH THE
- [SDR 2011FA0000535](https://openairdocs.org/sdr/2011FA0000535), Aug 19, 2011: CONTROL CABLE. FAILED. PILOT REPORTED DURING FLIGHT HE EXPERIENCED A TOTAL LOSS OF MIXTURE CONTROL. INVESTIGATION REVEALED THE MIXTURE CONTROL CABLE HAD BROKEN AT THE CONTROL IN THE C
- [SDR CA100824004](https://openairdocs.org/sdr/CA100824004), Aug 24, 2010: HANDLE. BINDING. INSTRUCTOR AND STUDENT WERE CONDUCTING THEIR 11TH TAKEOFF WHILE PRACTICING LOCAL CIRCUITS WHEN THE STUDENT DISCOVERED THAT THE LANDING GEAR HANDLE COULD NOT BE 
- [SDR 2008FA0000495](https://openairdocs.org/sdr/2008FA0000495), May 25, 2008: FUEL SYS. MALFUNCTIONED. APPROX 9 GALLONS OF FUEL IN CENTER TANK BECAME INACCESSIBLE DURING FLT, PRECAUTIONARY LANDING. AFTER DEPARTING USING CENTER TANK FUEL FOR A 120 MILE FERRY FLIGH
- [SDR 2007FA0000397](https://openairdocs.org/sdr/2007FA0000397), Mar 31, 2007: BEARING. BROKEN. BEARING ROD END BROKEN AT THREAD EXP BEARING (452377) CONDUIT BENT. CONTROL ASSY (455180).
- [SDR 2006FA0001183](https://openairdocs.org/sdr/2006FA0001183), Dec 8, 2006: BRACKET. CRACKED. DURING A ROUTINE INSPECTION IT WAS NOTICED THE 76201.113 TOUNGE BRACKETS LT AND RT WHICH ATTACH THE REAR SEAT BACKREST TO THE LOWER SEAT ASSEMBLY WERE CRACKED T
- [SDR 2007FA0000003](https://openairdocs.org/sdr/2007FA0000003), Nov 10, 2006: PUMP. OUT OF LIMITS. PILOT REPORTED SUCTION INDICATOR WAS BELOW LIMITS, AC RETURNE TO BASE. UPON TROUBLESHOOTING, THE MECHANIC REMOVED THE AIR PUMP AND NOTICED THE SHAFT WAS VERY EA
- [SDR 2007FA0000007](https://openairdocs.org/sdr/2007FA0000007), Oct 30, 2006: PUMP. WORN. DURING FLIGHT SUCTION PRESSURE READING DROPPED TO ZERO, DURING FURTHER TROUBLESHOOTING, TECH FOUND THE ENGINE DRIVEN AIR PUMP WAS NOT PRODUCTING ENOUGH SUCTION.
- [SDR 2007FA0000006](https://openairdocs.org/sdr/2007FA0000006), Sep 26, 2006: SHAFT. BROKEN. DURING ENGINE START, SUCTION PRESSURE WAS READING ZERO, DURING FURTHER TROUBLESHOOTING, TECH FOUND THE ENGINE DRIVEN DRIVEN DRY AIR PUMP HAD A BROKEN SHAFT. PRO
- [SDR 2007FA0000005](https://openairdocs.org/sdr/2007FA0000005), Sep 22, 2006: PUMP. WORN. DURING FLIGHT SUCTION PRESSURE READING DROPPED TO ZERO, DURING FURTHER TROUBLESHOOTING TECHICIAN FOUND THE ENGINE DRIVEN DRY AIR PUMP SHAFT HAD BROKEN. PROBABLE
- [SDR SJ3R020511](https://openairdocs.org/sdr/SJ3R020511), Aug 9, 2006: HUB. DAMAGED. PROPELLER MOUNTING FLANGE HAS EXCESSIVE FRETTING DAMAGE. HUB IS SCRAP.
- [SDR 2005FA0001579](https://openairdocs.org/sdr/2005FA0001579), Dec 14, 2005: LONGERON. CRACKED. DURING ROUTINE 1,000 HR INSPECTION CRACKS WERE FOUND IN THE UPPER LONGERON AT THE HORIZONTAL STABILIZER ATTACHMENT, THESE WERE VERIFIED USING A FLUORESCENT DYE 
- [SDR 2005FA0001526](https://openairdocs.org/sdr/2005FA0001526), Nov 3, 2005: CANOPY. DEPARTED. CANOPY ASSEMBLY PN S2C503, DEPARTED AIRCRAFT DURING NORMAL FLIGHT ATTITUDE AND CRUISE SPEED. NO APPARENT COMPONENT FAILURE NOTED ON AIRCRAFT COCKPIT STRUCTURE O
- [SDR X6PA200500005](https://openairdocs.org/sdr/X6PA200500005), Jun 10, 2005: CRANKCASE. CRACKED. ENGINE INSPECTED DUE TO AN OIL LEAK. DURING THE INSPECTION THE RIGHT CRANK CASE WAS FOUND CRACKED SIX INCHES IN LENGTH AROUND THE BOTTOM PERIMETER OF THE NR 3 C
- [SDR 2005FA0000801](https://openairdocs.org/sdr/2005FA0000801), May 13, 2005: PLATE. DEBONDED. DURING FLEET-WIDE INSPECTION OF AIRCRAFT, TECH FOUND EXCESSIVE MOVEMENT BETWEEN RUDDER AND RUDDER LEVER ASSY. FURTHER INSPECTION SHOWED DISBONDING BETWEEN THE R
- [SDR 2005FA0000112](https://openairdocs.org/sdr/2005FA0000112), Jan 18, 2005: IGNITION SWITCH. INOPERATIVE. PILOT REPORTED STARTER WOULD NOT ENGAGE, AFTER FURTHER INVESTIGATION FOUND IGNITION SWITCH WAS BAD. NO PROBABLE CAUSE OR RECOMMENDATIONS AT THIS TIME. (K)
- [SDR 2005FA0001122](https://openairdocs.org/sdr/2005FA0001122), Nov 4, 2004: BEARING. FAILED. DURING INSPECTION OF MAIN LANDING GEAR, DISCOVERED EXCESSIVE FORE AND AFT PLAY IN RT MLG LEG. RT MAIN LEG COULD MOVE FORE AND AFT 4MM OR MORE. GEAR LEG WAS REMO
- [SDR 2004FA0000717](https://openairdocs.org/sdr/2004FA0000717), Jul 27, 2004: IGNITION SWITCH. INTERMITTENT. AFTER INSTALLING IGNITION SWITCH, THE MECHANIC NOTICE THE SWITCH WAS HARD TO PUSH IN AND INTERMITTENT AT THE START POSITION. NO PROBABLE CAUSE OR RECOMMENDATION
- [SDR 2004FA0000720](https://openairdocs.org/sdr/2004FA0000720), Jul 27, 2004: STARTER. INTERMITTENT. PILOT REPORTED STARTER WOULD NOT ENGAGE, PROBABLE CAUSE AT THIS TIME UNKNOWN.

## STCs that may be installed (OpenAirDocs) (26)

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. Lists AEIO-540-D4A5
- [STC SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc. Lists AEIO-540-D4A5
- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd. Lists AEIO-540-D4A5
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company. Lists AEIO-540-D4A5
- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc. Lists AEIO-540-D4A5
- [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. Lists AEIO-540-D4A5
- [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
- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc. Lists AEIO-540-D4A5
- [STC SE01436LA](https://openairdocs.org/stc/SE01436LA): Installation of Firewall Forward Technologies LLC modified camshaft. Centri-lube Technologies LLC. Lists AEIO-540-D4A5
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp. Lists AEIO-540-D4A5
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc. Lists AEIO-540-D4A5
- [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp. Lists AEIO-540-D4A5
- [STC SE09445SC](https://openairdocs.org/stc/SE09445SC): Installation of fuel injector nozzles. General Aviation Modifications Inc. Lists AEIO-540-D4A5
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc
- [STC SE7582SW](https://openairdocs.org/stc/SE7582SW): Grinding of high compression NITRIDED Cylinders to .010 oversize, as an alternative to chrome plating or rebarreling, and the installation of SL10207 P10 Piston, SL74241 P10 Top and second compression ring, and SL 73857 P10 oil control ring. Superior Air Parts, Inc. Lists AEIO-540-L1B5
- [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 AEIO-540-D4A5
- [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. Lists AEIO-540-D4A5
- [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. Lists AEIO-540-D4A5
- [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. Lists AEIO-540-D4A5
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation. Lists AEIO-540-D4A5
- [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
- [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
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL
- [STC SA01436DE](https://openairdocs.org/stc/SA01436DE) (historical): Installation of Firewall Forward Technologies, LLC modified camshaft. Centri-Lube Technologies LLC. Lists AEIO-540-D4A5

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