# Lycoming IO-540-AB1A5

- Type: Engine model (FAA registry)
- Registry code: 41808
- Manufacturer (registry): LYCOMING
- Model: IO-540-AB1A5
- Engine type: Reciprocating
- Power: 230 hp
- Data sheet: [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 773 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-io-540-ab1a5

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 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 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 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 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

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 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 (773, first 50)

- [N100HX](https://openairdocs.org/aircraft/N100HX): [14 Aero Spaces LLC](https://openairdocs.org/faa-owner/14%20AERO%20SPACES%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2008, S/N 18282087
- [N102BR](https://openairdocs.org/aircraft/N102BR): [Otv Leasing](https://openairdocs.org/faa-owner/OTV%20LEASING), [Bristow, VA](https://openairdocs.org/faa-place/VA/Bristow), built 2010, S/N 18282264
- [N10965](https://openairdocs.org/aircraft/N10965): [Clampitt Darrell](https://openairdocs.org/faa-owner/CLAMPITT%20DARRELL), [Gray, GA](https://openairdocs.org/faa-place/GA/Gray), built 2007, S/N 18281976
- [N109CQ](https://openairdocs.org/aircraft/N109CQ): [Watkins Eric Brian](https://openairdocs.org/faa-owner/WATKINS%20ERIC%20BRIAN), [San Diego, CA](https://openairdocs.org/faa-place/CA/San%20Diego), built 2016, S/N 18282462
- [N1105X](https://openairdocs.org/aircraft/N1105X): [Gay Faith E](https://openairdocs.org/faa-owner/GAY%20FAITH%20E), [Johnstown, NY](https://openairdocs.org/faa-place/NY/Johnstown), S/N 18281980
- [N110GC](https://openairdocs.org/aircraft/N110GC): [Altitude Ventures LLC](https://openairdocs.org/faa-owner/ALTITUDE%20VENTURES%20LLC), [Lexington, NC](https://openairdocs.org/faa-place/NC/Lexington), built 2019, S/N 18283062
- [N111AK](https://openairdocs.org/aircraft/N111AK): [Kershaw Andrew H](https://openairdocs.org/faa-owner/KERSHAW%20ANDREW%20H), [Spring, TX](https://openairdocs.org/faa-place/TX/Spring), built 2025, S/N 18283325
- [N111HK](https://openairdocs.org/aircraft/N111HK): [Sky Peace Aviation LLC](https://openairdocs.org/faa-owner/SKY%20PEACE%20AVIATION%20LLC), [Springdale, AR](https://openairdocs.org/faa-place/AR/Springdale), built 2015, S/N 18282377
- [N112SP](https://openairdocs.org/aircraft/N112SP): [Minnesota Department Of Public Safety](https://openairdocs.org/faa-owner/MINNESOTA%20DEPARTMENT%20OF%20PUBLIC%20SAFETY), [Saint Paul, MN](https://openairdocs.org/faa-place/MN/Saint%20Paul), built 2019, S/N 18283086
- [N115BR](https://openairdocs.org/aircraft/N115BR): [Jp Air LLC](https://openairdocs.org/faa-owner/JP%20AIR%20LLC), [Rockledge, FL](https://openairdocs.org/faa-place/FL/Rockledge), built 2016, S/N 18282415
- [N1162U](https://openairdocs.org/aircraft/N1162U): [Hamel Raymond F Jr](https://openairdocs.org/faa-owner/HAMEL%20RAYMOND%20F%20JR), [Wellesley, MA](https://openairdocs.org/faa-place/MA/Wellesley), built 2007, S/N 18281984
- [N1164J](https://openairdocs.org/aircraft/N1164J): [Tyson Bradley](https://openairdocs.org/faa-owner/TYSON%20BRADLEY), [Sherrills Ford, NC](https://openairdocs.org/faa-place/NC/Sherrills%20Ford), built 2023, S/N 18283240
- [N116CP](https://openairdocs.org/aircraft/N116CP): [Civil Air Patrol](https://openairdocs.org/faa-owner/CIVIL%20AIR%20PATROL), [Maxwell Afb, AL](https://openairdocs.org/faa-place/AL/Maxwell%20Afb), built 2017, S/N 18283012
- [N116D](https://openairdocs.org/aircraft/N116D): [Reese, MI](https://openairdocs.org/faa-place/MI/Reese), built 2022, S/N 18283203, Registration pending
- [N116WB](https://openairdocs.org/aircraft/N116WB): [Dunch David J Trustee](https://openairdocs.org/faa-owner/DUNCH%20DAVID%20J%20TRUSTEE), [Poland, OH](https://openairdocs.org/faa-place/OH/Poland), built 1998, S/N 18280170
- [N1171J](https://openairdocs.org/aircraft/N1171J): [National Test Pilot School](https://openairdocs.org/faa-owner/NATIONAL%20TEST%20PILOT%20SCHOOL), [Mojave, CA](https://openairdocs.org/faa-place/CA/Mojave), built 2007, S/N 18281985
- [N1174C](https://openairdocs.org/aircraft/N1174C): [Georgia Forestry Commission](https://openairdocs.org/faa-owner/GEORGIA%20FORESTRY%20COMMISSION), [Macon, GA](https://openairdocs.org/faa-place/GA/Macon), built 2007, S/N 18281905
- [N117BD](https://openairdocs.org/aircraft/N117BD): [Hall Alan Ray](https://openairdocs.org/faa-owner/HALL%20ALAN%20RAY), [Willow Park, TX](https://openairdocs.org/faa-place/TX/Willow%20Park), built 2017, S/N 18283024
- [N1183M](https://openairdocs.org/aircraft/N1183M): [Hess Darren Michael](https://openairdocs.org/faa-owner/HESS%20DARREN%20MICHAEL), [Wenatchee, WA](https://openairdocs.org/faa-place/WA/Wenatchee), built 2007, S/N 18281911
- [N1186T](https://openairdocs.org/aircraft/N1186T): [Map Aviation LLC](https://openairdocs.org/faa-owner/MAP%20AVIATION%20LLC), [Coral Gables, FL](https://openairdocs.org/faa-place/FL/Coral%20Gables), built 2007, S/N 18281879
- [N1192S](https://openairdocs.org/aircraft/N1192S): [Hill Don E](https://openairdocs.org/faa-owner/HILL%20DON%20E), [Highlands, TX](https://openairdocs.org/faa-place/TX/Highlands), built 2007, S/N 18281881
- [N1193R](https://openairdocs.org/aircraft/N1193R): [State Of Wisconsin](https://openairdocs.org/faa-owner/STATE%20OF%20WISCONSIN), [Madison, WI](https://openairdocs.org/faa-place/WI/Madison), built 2007, S/N 18281882
- [N1194R](https://openairdocs.org/aircraft/N1194R): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 2007, S/N 18281894
- [N1194W](https://openairdocs.org/aircraft/N1194W): [Pm Technology And Leasing LLC](https://openairdocs.org/faa-owner/PM%20TECHNOLOGY%20AND%20LEASING%20LLC), [Inver Grove, MN](https://openairdocs.org/faa-place/MN/Inver%20Grove), built 2007, S/N 18281906
- [N120HP](https://openairdocs.org/aircraft/N120HP): [Lawton, OK](https://openairdocs.org/faa-place/OK/Lawton), built 2006, S/N 18281841, Registration pending
- [N1219G](https://openairdocs.org/aircraft/N1219G): built 2007, S/N 18281886
- [N121JM](https://openairdocs.org/aircraft/N121JM): [Bullet Aviation LLC](https://openairdocs.org/faa-owner/BULLET%20AVIATION%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 2025, S/N 18283317
- [N12222](https://openairdocs.org/aircraft/N12222): [Thomas John S](https://openairdocs.org/faa-owner/THOMAS%20JOHN%20S), [Starkville, MS](https://openairdocs.org/faa-place/MS/Starkville), built 2007, S/N 18282003
- [N122JA](https://openairdocs.org/aircraft/N122JA): [Chase James P](https://openairdocs.org/faa-owner/CHASE%20JAMES%20P), [Waco, TX](https://openairdocs.org/faa-place/TX/Waco), built 2025, S/N 18283320
- [N124SK](https://openairdocs.org/aircraft/N124SK): [Agarwal Sanjai K](https://openairdocs.org/faa-owner/AGARWAL%20SANJAI%20K), [Monroe, NJ](https://openairdocs.org/faa-place/NJ/Monroe), built 2025, S/N 18283304
- [N124WM](https://openairdocs.org/aircraft/N124WM): [Denton James Manley Jr](https://openairdocs.org/faa-owner/DENTON%20JAMES%20MANLEY%20JR), [Cabot, AR](https://openairdocs.org/faa-place/AR/Cabot), built 2016, S/N 18282431
- [N1251D](https://openairdocs.org/aircraft/N1251D): [Erjoaero LLC](https://openairdocs.org/faa-owner/ERJOAERO%20LLC), [Stuart, FL](https://openairdocs.org/faa-place/FL/Stuart), built 2007, S/N 18282023
- [N1257P](https://openairdocs.org/aircraft/N1257P): [812 Aviation LLC](https://openairdocs.org/faa-owner/812%20AVIATION%20LLC), [Salem, IN](https://openairdocs.org/faa-place/IN/Salem), built 2022, S/N 18283193
- [N12675](https://openairdocs.org/aircraft/N12675): [Van Bortel Aircraft Inc](https://openairdocs.org/faa-owner/VAN%20BORTEL%20AIRCRAFT%20INC), [Arlington, TX](https://openairdocs.org/faa-place/TX/Arlington), built 2007, S/N 18282026
- [N1274V](https://openairdocs.org/aircraft/N1274V): [Diamond Specialized Inc](https://openairdocs.org/faa-owner/DIAMOND%20SPECIALIZED%20INC), [Richmond, OH](https://openairdocs.org/faa-place/OH/Richmond), built 2008, S/N T18208807
- [N127CF](https://openairdocs.org/aircraft/N127CF): [Georgia Forestry Commission](https://openairdocs.org/faa-owner/GEORGIA%20FORESTRY%20COMMISSION), [Macon, GA](https://openairdocs.org/faa-place/GA/Macon), built 2007, S/N 18282027
- [N1290F](https://openairdocs.org/aircraft/N1290F): [Kilm LLC](https://openairdocs.org/faa-owner/KILM%20LLC), [Wilmington, NC](https://openairdocs.org/faa-place/NC/Wilmington), built 2007, S/N 18282045
- [N129JA](https://openairdocs.org/aircraft/N129JA): [White River Holdings LLC](https://openairdocs.org/faa-owner/WHITE%20RIVER%20HOLDINGS%20LLC), [Hernando, MS](https://openairdocs.org/faa-place/MS/Hernando), built 2022, S/N 18283172
- [N129JT](https://openairdocs.org/aircraft/N129JT): [Niles Air LLC](https://openairdocs.org/faa-owner/NILES%20AIR%20LLC), [Concord, NC](https://openairdocs.org/faa-place/NC/Concord), built 2024, S/N 18283288
- [N1309M](https://openairdocs.org/aircraft/N1309M): [Reny Donald Cyril Jr](https://openairdocs.org/faa-owner/RENY%20DONALD%20CYRIL%20JR), [League City, TX](https://openairdocs.org/faa-place/TX/League%20City), built 2008, S/N 18282050
- [N1341P](https://openairdocs.org/aircraft/N1341P): [N8075q LLC](https://openairdocs.org/faa-owner/N8075Q%20LLC), [Corpus Christi, TX](https://openairdocs.org/faa-place/TX/Corpus%20Christi), built 2007, S/N 18281876
- [N13433](https://openairdocs.org/aircraft/N13433): [Seamoose Aviation LLC](https://openairdocs.org/faa-owner/SEAMOOSE%20AVIATION%20LLC), [Shelton, CT](https://openairdocs.org/faa-place/CT/Shelton), built 2007, S/N 18281878
- [N134DJ](https://openairdocs.org/aircraft/N134DJ): [H2k Farms LLC](https://openairdocs.org/faa-owner/H2K%20FARMS%20LLC), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 2019, S/N 18283065
- [N1359B](https://openairdocs.org/aircraft/N1359B): [Lagos Aero LLC](https://openairdocs.org/faa-owner/LAGOS%20AERO%20LLC), [Houston, TX](https://openairdocs.org/faa-place/TX/Houston), built 2007, S/N 18281880
- [N135TD](https://openairdocs.org/aircraft/N135TD): [Dunlay Regis Terry](https://openairdocs.org/faa-owner/DUNLAY%20REGIS%20TERRY), [Albuquerque, NM](https://openairdocs.org/faa-place/NM/Albuquerque), built 2019, S/N 18283082
- [N140CT](https://openairdocs.org/aircraft/N140CT): [Kollar Aviation LLC](https://openairdocs.org/faa-owner/KOLLAR%20AVIATION%20LLC), [Apollo Beach, FL](https://openairdocs.org/faa-place/FL/Apollo%20Beach), built 2015, S/N 18282382
- [N14205](https://openairdocs.org/aircraft/N14205): [Dfi Aviation Services LLC](https://openairdocs.org/faa-owner/DFI%20AVIATION%20SERVICES%20LLC), [Herndon, VA](https://openairdocs.org/faa-place/VA/Herndon), built 2007, S/N 18281889
- [N1420P](https://openairdocs.org/aircraft/N1420P): [Orchid Aviation LLC](https://openairdocs.org/faa-owner/ORCHID%20AVIATION%20LLC), [Palm Springs, CA](https://openairdocs.org/faa-place/CA/Palm%20Springs), built 2007, S/N 18281888
- [N142LJ](https://openairdocs.org/aircraft/N142LJ): [Obr Leasing](https://openairdocs.org/faa-owner/OBR%20LEASING), [Bristow, VA](https://openairdocs.org/faa-place/VA/Bristow), built 2010, S/N 18282272
- [N147HB](https://openairdocs.org/aircraft/N147HB): [Cooley Timothy](https://openairdocs.org/faa-owner/COOLEY%20TIMOTHY), [Gilbert, AZ](https://openairdocs.org/faa-place/AZ/Gilbert), built 2017, S/N 18283011

All 773: https://openairdocs.org/engine/lycoming-io-540-ab1a5/aircraft.md

## NTSB investigations (27)

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 ERA26LA278](https://openairdocs.org/ntsb/ERA26LA278), Jun 13, 2026: Textron 182T (N505CP), Fredericksburg, VA, substantial damage. Probable cause: The pilot’s distraction during taxi, which resulted in a taxiway excursion.
- [NTSB ANC26FA039](https://openairdocs.org/ntsb/ANC26FA039), May 7, 2026: Cessna 182T (N227TF), Armistead, CA, substantial damage, 2 fatal, investigation ongoing
- [NTSB CEN26LA213](https://openairdocs.org/ntsb/CEN26LA213), Jan 22, 2026: Textron 182T (N116D), Newberry, MI, substantial damage, investigation ongoing
- [NTSB GAA26WA014](https://openairdocs.org/ntsb/GAA26WA014), Oct 25, 2025: Textron 182T (N9009F), Nuuk, Greenland, destroyed, 1 fatal
- [NTSB CEN25FA047](https://openairdocs.org/ntsb/CEN25FA047), Nov 23, 2024: Cessna 182T (N434CP), Drake, CO, destroyed, 2 fatal. Probable cause: The pilot’s failure to maintain airplane control while maneuvering in mountainous terrain. Contributing was mountain wave turbulence in the area.
- [NTSB WPR21FA048](https://openairdocs.org/ntsb/WPR21FA048), Nov 12, 2020: Cessna 182 (N939CP), Los Angeles, CA, destroyed, 1 fatal. Probable cause: Maintenance personnel’s failure to properly secure the throttle control hardware during recent maintenance, which resulted in its disconnection and a subsequent loss of engine power on approach for…
- [NTSB CEN20FA075](https://openairdocs.org/ntsb/CEN20FA075), Feb 6, 2020: Cessna 182 (N60381), Chatham, LA, destroyed, 3 fatal. Probable cause: The pilot’s encounter with icing in-flight, which resulted in a loss of control and impact with terrain.
- [NTSB GAA19CA129](https://openairdocs.org/ntsb/GAA19CA129), Dec 21, 2018: Cessna 182 (N23YR), Marshall, TX, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing.
- [NTSB ERA18LA191](https://openairdocs.org/ntsb/ERA18LA191), Jul 13, 2018: Cessna 182 (N291CP), Geneseo, NY, substantial damage. Probable cause: The pilot's failure to properly set the elevator trim before takeoff, which resulted in an exceedance of the airplane's critical angle of attack during takeoff and a subsequent aerodynamic stall.…
- [NTSB GAA18CA364](https://openairdocs.org/ntsb/GAA18CA364), Jun 17, 2018: Cessna 182T (N6284X), Sebring, FL, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing with a crosswind.
- [NTSB GAA17CA492](https://openairdocs.org/ntsb/GAA17CA492), Aug 12, 2017: Cessna 182 (N147DD), Quitman, MS, substantial damage. Probable cause: The student pilot’s failure to maintain directional control during takeoff in gusting wind conditions after passing a large hill.
- [NTSB GAA17CA048](https://openairdocs.org/ntsb/GAA17CA048), Oct 26, 2016: Cessna 182 (N387CS), Palo Alto, CA, substantial damage. Probable cause: The pilot's failure to perform a go-around when he recognized that the airplane was high and fast during the final approach, which resulted in an improper landing flare and a hard landing.
- [NTSB CEN16FA373](https://openairdocs.org/ntsb/CEN16FA373), Sep 19, 2016: Cessna 182 (N2012F), Ephraim, WI, destroyed, 2 fatal. Probable cause: The pilot's improper decision to execute a maneuvering approach at low altitude during night conditions, which resulted in controlled flight into terrain.
- [NTSB GAA16CA484](https://openairdocs.org/ntsb/GAA16CA484), Sep 12, 2016: Cessna 182 (N90391), Olathe, KS, substantial damage. Probable cause: The pilot’s failure to reduce the throttle during the landing roll resulting in a loss of directional control.
- [NTSB ERA16FA100](https://openairdocs.org/ntsb/ERA16FA100), Feb 2, 2016: Cessna 182 (N784CP), Mobile, AL, destroyed, 2 fatal. Probable cause: The pilot's loss of airplane control during a missed approach in instrument meteorological conditions due to spatial disorientation. Contributing to the accident was the pilot's inadequate preflight…
- [NTSB ERA14LA072](https://openairdocs.org/ntsb/ERA14LA072), Dec 17, 2013: Cessna 182T (N963CP), Burlington, NC, substantial damage. Probable cause: A loss of airplane control during takeoff for reasons that could not be determined due to the postaccident condition of the elevator control system.
- [NTSB WPR13LA286](https://openairdocs.org/ntsb/WPR13LA286), Jun 24, 2013: Cessna 182T (N411CP), San Diego, CA, substantial damage. Probable cause: Both pilots’ failure to maintain a proper visual lookout while taxiing during nighttime conditions, which resulted in an on-ground collision.
- [NTSB CEN13FA269](https://openairdocs.org/ntsb/CEN13FA269), May 9, 2013: Cessna 182T (N6197H), Fredericksburg, TX, destroyed, 2 fatal. Probable cause: The pilot’s failure to maintain airspeed while transitioning from instrument to visual flight while still in instrument conditions, which resulted in an inadvertent stall.
- [NTSB CEN13LA258](https://openairdocs.org/ntsb/CEN13LA258), May 2, 2013: Cessna 182T (N2012Y), Delta, CO, substantial damage. Probable cause: The loss of propeller control for reasons that could not be determined because postaccident examinations revealed no anomalies that would have precluded normal operation and the airplane’s subsequent…
- [NTSB ERA11CA270](https://openairdocs.org/ntsb/ERA11CA270), Apr 30, 2011: Cessna 182T (N428LB), East Hampton, NY, substantial damage. Probable cause: The pilot's failure to maintain directional control while landing with a crosswind, which resulted in a runway excursion.
- [NTSB ERA10CA253](https://openairdocs.org/ntsb/ERA10CA253), May 1, 2010: Cessna 182T (N935FA), Parkersburg, WV, substantial damage. Probable cause: The pilot's loss of aircraft control while landing with a gusting wind.
- [NTSB WPR09CA469](https://openairdocs.org/ntsb/WPR09CA469), Sep 26, 2009: Cessna 182 (N1040D), Parowan, UT, substantial damage. Probable cause: The pilot's improper flare and recovery from a bounced landing.
- [NTSB CEN09LA247](https://openairdocs.org/ntsb/CEN09LA247), Apr 9, 2009: Cessna 182T (N1491D), Stigler, OK, substantial damage. Probable cause: The loss of directional control during takeoff. Contributing to the accident was the pilot's decision to take off with 40-degrees of flaps and with a tailwind.
- [NTSB ERA09CA017](https://openairdocs.org/ntsb/ERA09CA017), Oct 7, 2008: Cessna 182T (N771CP), Manchester, CT, substantial damage. Probable cause: The in-flight collision with a bird.
- [NTSB DEN07CA128](https://openairdocs.org/ntsb/DEN07CA128), Jul 26, 2007: Cessna 182T (N1049V), Grand Junction, CO, substantial damage. Probable cause: The pilot's failure to maintain aircraft control during the landing.
- [NTSB FTW03FA114](https://openairdocs.org/ntsb/FTW03FA114), Mar 21, 2003: Cessna 182S (N97TD), Fayetteville, AR, destroyed, 1 fatal. Probable cause: The pilot's failure to fly a stabilized, published instrument approach procedure, which resulted in a collision with trees and terrain. Factors were the low clouds and night conditions.
- [NTSB CHI00LA304](https://openairdocs.org/ntsb/CHI00LA304), Sep 22, 2000: Cessna 182S (N97TD), Wichita, KS, substantial damage. Probable cause: the pilot's failure to maintain aircraft control during the landing. Factors relating to this accident were the pilot's improper recovery from the bounced landing and his failure to go-around.

## FAA accident and incident reports (52, newest 50)

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

- [Accident 20260613008729A](https://openairdocs.org/incident/20260613008729A), Jun 13, 2026: Textron Aviation Inc 182T (N505CP), Fredericksburg, VA, Substantial damage. The pilot stated that while taxiing from parking ramp to run up area for eventual take-off, he [the rated pilot] became distracted by non-rated right seat…
- [Accident 20260507006849A](https://openairdocs.org/incident/20260507006849A), May 7, 2026: Cessna 182T (N227TF), Inyokern, CA, Destroyed, 2 fatal. On may 7, 2026, about 1055 pacific daylight time (PDT), a Cessna 182T airplane, [privacy data omitted], was destroyed when it was involved in an accident near…
- [Incident 20260415003189I](https://openairdocs.org/incident/20260415003189I), Apr 15, 2026: Textron Aviation Inc 182T (N821WT), North Las Vegas, NV, No damage. On 04/15/2026 las Vegas, Nevada (vgt) 13:05 local time. A Cessna 182 landing on runway 12R departed the runway between taxiway charlie and taxiway h during…
- [Incident 20250505006779I](https://openairdocs.org/incident/20250505006779I), May 5, 2025: Cessna 182T (N52HA), Fletcher, NC, Minor damage. 5/5/2025: At approximately 1400 local EST, a Cessna 182, landed on rwy 17 at kavl. During rollout, the aircraft veered right of centerline as the pilot was…
- [Incident 20250129002409I](https://openairdocs.org/incident/20250129002409I), Jan 29, 2025: Textron Aviation Inc 182T (N181CS), Camdenton, MO, Minor damage. On student pilot's second solo landing, pilot landed aircraft hard on main gear causing the aircraft to bounce forward nose heavy causing the prop to strike…
- [Accident 20241123016819A](https://openairdocs.org/incident/20241123016819A), Nov 23, 2024: Cessna 182T (N434CP), Drake, CO, Destroyed, 2 fatal. Aircraft took off at 0908 MST from fnl - northern Colorado regional airport. Aircraft flew out to an area north of Drake, Colorado for an aerial photography…
- [Incident 20241018019349I](https://openairdocs.org/incident/20241018019349I), Oct 18, 2024: Cessna 182T (N743CP), Fullerton, CA, Substantial damage. On October 18, 2024, at 0930PDT in Fullerton Municipal Airport’s southwest ramp, a Cessna 182 aircraft struck the tail of a parked Cessna 172 and stopped after…
- [Incident 20240625007549I](https://openairdocs.org/incident/20240625007549I), Jun 25, 2024: Cessna 182T (N1492U), Spring, TX, Minor damage. On 6/25/2024 at 1245 CDT, a Cessna 182T, was conducting a training flight and on landing and rollout, the right-hand wheel brake failed to respond to any…
- [Incident 20231111017139I](https://openairdocs.org/incident/20231111017139I), Nov 11, 2023: Cessna 182T (N3552L), Danbury, CT, Minor damage. On 11/11/2023 at 1610 EST upon landing at Danbury Municipal Airport (dxr), CT after two successful approach and landings at orange county airport, NY (mgj) the…
- [Incident 20231024017519I](https://openairdocs.org/incident/20231024017519I), Oct 24, 2023: Cessna 182T (N14205), Leesburg, VA, Minor damage. [privacy data omitted] Taxied airplane into tent pole that remained in ramp area after recent air show. Damage was discovered by FAA when shop forwarded ferry…
- [Incident 20230520005449I](https://openairdocs.org/incident/20230520005449I), May 20, 2023: Textron Aviation Inc 182T (N31MJ), Iowa City, IA, Minor damage. Ran off runway struck fence
- [Incident 20220322004079I](https://openairdocs.org/incident/20220322004079I), Mar 22, 2022: Textron Aviation Inc 182T (N456CS), Palo Alto, CA, Minor damage. The pilot noted the rt wheel fairing loose on the preflight. After the preflight, the pilot determined the aircraft was airworthy. The pilot flies the aircraft…
- [Incident 20210419003529I](https://openairdocs.org/incident/20210419003529I), Apr 19, 2021: Cessna 182T (N884CP), Lexington, KY, Minor damage. Airman landed the aircraft at klex airport. On roll out he inadvertently left the runway and went through the grass, striking a runway light in the process,…
- [Incident 20210417004721I](https://openairdocs.org/incident/20210417004721I), Apr 17, 2021: Cessna 182T (N1489L), Lakeland, FL, Minor damage. This aircraft was parked and tied and not attended when another aircraft (N130HL) taxied into it and damaged the tail rudder with their l/h wing tip.
- [Accident 20201012020529A](https://openairdocs.org/incident/20201012020529A), Oct 12, 2020: Textron Aviation Inc 182T (N939CP), Pacoima, CA, Destroyed, 1 fatal. 11/12/20: N939CP, a single engine airplane, operated by the civil air patrol, crashed near Whiteman Airport, Pacoima, CA. The airplane was destroyed by fire on…
- [Incident 20200303000409I](https://openairdocs.org/incident/20200303000409I), Mar 3, 2020: Cessna 182T (N90391), Olathe, KS, Minor damage. The pilot was attempting to land on runway 18 with a prevailing gusting crosswind. The pilot applied improper control inputs, and during landing rollout the…
- [Accident 20200206002799A](https://openairdocs.org/incident/20200206002799A), Feb 6, 2020: Cessna 182T (N60381), Chatham, LA, Destroyed, 3 fatal. On February 6, 2020, about 1413 central standard time, a Cessna 182 airplane, N60381, registered to an LLC, impacted the ground in Chatham, Louisiana. The…
- [Incident 20190815014299I](https://openairdocs.org/incident/20190815014299I), Aug 15, 2019: Cessna 182T (N782CP), Islip, NY, Minor damage. While on final for 15R at isp the airman explained there was a right crosswind and the air was turbulent. On roundout the main landing gear touched down but…
- [Incident 20190318001599I](https://openairdocs.org/incident/20190318001599I), Mar 18, 2019: Cessna 182T (N371CP), Morristown, TN, Minor damage. Flight departed krvn direct to kmor flight conditions were VFR with gusting winds at 12 mph entered traffic pattern at 45 degree to down wind for 05 at mor…
- [Incident 20190228011129I](https://openairdocs.org/incident/20190228011129I), Feb 28, 2019: Cessna 182T (N273CP), Fitchburg, MA, Minor damage. Feb 28, 2019 - received telecom from FAA c-roc approximately 18:40 hours local eastern standard time (EST) regarding an aircraft occurrence at Fitchburg…
- [Accident 20181221022059A](https://openairdocs.org/incident/20181221022059A), Dec 21, 2018: Textron Aviation Inc 182T (N23YR), Marshall, TX, Substantial damage. The student pilot went for a practice flight from kasl while landing on runway 33. The aircraft proceeded to exit the runway, crossing a ditch and onto the…
- [Accident 20180713011089A](https://openairdocs.org/incident/20180713011089A), Jul 13, 2018: Cessna 182T (N291CP), Geneseo, NY, Substantial damage. On Friday, July 13, 2018 at approximately 1800 EDT, a CE-182T, N291CP, departed runway 23 at the Geneseo Airport (D52). Shortly after takeoff, it was reported…
- [Accident 20180617008109A](https://openairdocs.org/incident/20180617008109A), Jun 17, 2018: Cessna 182T (N6284X), Sebring, FL, Destroyed. During routine flight form st. pete?clearwater international airport to Sebring regional airport. The pilot performed a crosswind landing on runway 01 during…
- [Accident 20170812024759A](https://openairdocs.org/incident/20170812024759A), Aug 12, 2017: Cessna 182T (N147DD), Quitman, MS, Destroyed. FAA did not go to the see of the accident. The following account is from the pilot, [privacy data omitted] of N147DD. [privacy data omitted] Said he awoke the…
- [Incident 20170726015109I](https://openairdocs.org/incident/20170726015109I), Jul 26, 2017: Cessna 182T (N13433), Oshkosh, WI, Minor damage. On 7/26/2017 a Cessna 182, N13433 landed at Oshkosh on runway 18 with two persons on board to attend the annual eaa convention. Upon rollout the pilot exited…
- [Incident 20170128000819I](https://openairdocs.org/incident/20170128000819I), Jan 28, 2017: Cessna 182T (N288CP), Savannah, GA, No damage. Aircraft N288CP departed ksav, runway 01, at approximately 1521 on 01/28/2017. Once airborne and passing approximately 600 feet the pilot was instructed to…
- [Accident 20161026021499A](https://openairdocs.org/incident/20161026021499A), Oct 26, 2016: Cessna 182T (N387CS), Palo Alto, CA, Substantial damage. On October 25, 2016 at Palo Alto airport at 11:45 PST, aircraft N387CS touched down at approximately the seventeen hundred foot mark of a twenty four hundred…
- [Accident 20160918009199A](https://openairdocs.org/incident/20160918009199A), Sep 18, 2016: Cessna 182T (N2012F), Ephriam, WI, Destroyed, 2 fatal. Aircraft was returning to ephraim airport from grb. Pilot was helping a young student by giving her a ride to grb for a flight lesson. Aircraft crashed in…
- [Accident 20160911017149A](https://openairdocs.org/incident/20160911017149A), Sep 11, 2016: Cessna 182T (N90391), Olathe, KS, Substantial damage. Upon landing on runway 18 the pilot stated that he had started to apply the brakes to start to slow the aircraft while the nose of the aircraft was off the…
- [Accident 20160201001379A](https://openairdocs.org/incident/20160201001379A), Feb 1, 2016: Cessna 182T (N784CP), Mobile, AL, Destroyed, 2 fatal. On Monday February 01, 2016, around 19:45 central standard time, a Cessna 182T, N784CP, registered to and operated by the civil air patrol, while doing a…
- [Incident 20150731014129I](https://openairdocs.org/incident/20150731014129I), Jul 31, 2015: Cessna 182T (N880CP), Ponca, OK, Minor damage. On July 31, 2015 completed the flight going from khsd-kpnc on the way from kpnc to kguy the airplane pilot side window popped out of the hinges and flew out…
- [Incident 20140424005949I](https://openairdocs.org/incident/20140424005949I), Apr 24, 2014: Cessna 182T (N158FC), Brooksville, FL, No damage. While in approach to land at Hernando County Airport (bkv) the pilot attempted to use electric elevator trim, found electric trim inoperative and attempted to…
- [Accident 20131216023949A](https://openairdocs.org/incident/20131216023949A), Dec 16, 2013: Cessna 182T (N963CP), Burlington, NC, Substantial damage. On December 16, 2013, at approximately 21:00 EST, the pilot was performing night currency take offs and landings. On the 3rd takeoff of the night the pilot was…
- [Incident 20131008024009I](https://openairdocs.org/incident/20131008024009I), Oct 8, 2013: Cessna 182T (N510SL), Orlando, FL, Minor damage. Student was landing on runway 25 and struck runway right wheel first damaging the right wheel fairing. A piece of the wheel fairing dented the leading edge of…
- [Incident 20130821025419I](https://openairdocs.org/incident/20130821025419I), Aug 21, 2013: Cessna 182T (N9008H), Cheney, KS, No damage. During a turning maneuver at 700-800 feet AGL, the engine lost significant power. Pilot landed aircraft in a field. There was no damage to aircraft and no…
- [Accident 20130623012191A](https://openairdocs.org/incident/20130623012191A), Jun 23, 2013: Cessna 182T (N411CP), San Diego, CA, Substantial damage. On June 23, 2013, about 2115 pacific daylight time, a Cessna 182T, N411CP collided with a Cessna 172S, N694RR at Montgomery Field (myf) taxiway "h" (hotel).…
- [Accident 20130509010249A](https://openairdocs.org/incident/20130509010249A), May 9, 2013: Cessna 182T (N6197H), Fredericksburg, TX, Destroyed, 2 fatal. On may 9, 2013, a Cessna model CE-182T was inbound from fort worth spinks airport (fws), fort worht Texas to Gillespie county airport (T82) Fredericksburg TX.…
- [Accident 20130502007619A](https://openairdocs.org/incident/20130502007619A), May 2, 2013: Cessna 182T (N2012Y), Delta, CO, Substantial damage. The pilot was unable to maintain sufficient altitude due to a loss of engine power. The pilot conducted a forced landing on highway 50, approximately 3 statute…
- [Incident 20120328004689I](https://openairdocs.org/incident/20120328004689I), Mar 28, 2012: Cessna 182T (N2247T), Mccordsville, IN, Minor damage. The pilot was completing a crosswind landing with gusting winds from the right. This pilot acknowledges that upon touchdown he removed the crab, but did not…
- [Incident 20120306003359I](https://openairdocs.org/incident/20120306003359I), Mar 6, 2012: Cessna 182T (N231SP), Atlantic, IA, Minor damage. The aircraft was at 2500 feet MSL, at night, when it flew into a flock of geese. The impact with the geese damaged the right wing, horizontal stabilizer.…
- [Incident 20110618017589I](https://openairdocs.org/incident/20110618017589I), Jun 18, 2011: Cessna 182T (N482CA), Waterbury, CT, Minor damage. As the pilot started a descent, smoke started coming out of the vent at the top of the glareshield. The avionic cooling fan for the garmin 1000 avionics vents…
- [Accident 20110430008159A](https://openairdocs.org/incident/20110430008159A), Apr 30, 2011: Cessna 182T (N428LB), East Hampton, NY, Substantial damage. During landing at hto airport onto runway 28, the pilot reported that during the flare and touchdown a strong gust of wind caused the aircraft to drift from…
- [Incident 20100913047719I](https://openairdocs.org/incident/20100913047719I), Sep 13, 2010: Cessna 182T (N975CP), Omaha, NE, Minor damage. Pilot stated that he landed long on rwy 12. The last runway exit was barricaded, and instead of back taxiing to taxiway z, he taxied accross the grass to exit…
- [Incident 20100811041609I](https://openairdocs.org/incident/20100811041609I), Aug 11, 2010: Cessna 182T (N495MC), Little Rock, AR, Minor damage. On August 11, 2010, at approximately 1045 CDT, N495MC, a Cessna 182T, experienced a nose gear collapse while landing at Little Rock national airport. The…
- [Accident 20100501033689A](https://openairdocs.org/incident/20100501033689A), May 1, 2010: Cessna 182T (N935FA), Parkersburg, WV, Substantial damage. Wood County Airport, WV (pkb): N935FA, a C182T, sustained a flat tire after the nose gear was damaged on landing runway 21. The aircraft taxied to the ramp…
- [Accident 20090925017299A](https://openairdocs.org/incident/20090925017299A), Sep 25, 2009: Cessna 182T (N1040D), Parowan, UT, Substantial damage. (-23) During first landing attempt pilot cut the final to short and decided to abort landing. Pilot extended the final on second attempt aircraft touched down…
- [Incident 20090719014419I](https://openairdocs.org/incident/20090719014419I), Jul 19, 2009: Cessna 182T (N2436V), Dulce, NM, Minor damage. (-23) On July 19, 2009, a Cessna 182T, N2436V, registered to the owner, made a hard landing at Jicarilla-Apache Nation airport, new Mexico while on a training…
- [Accident 20090409003839A](https://openairdocs.org/incident/20090409003839A), Apr 9, 2009: Cessna 182T (N1491D), Stigler, OK, Destroyed. (-23) On April 9, 2009, N1491D crashed during takeoff from the pilot's father's private sod runway. It was reported by the pilot and passengers that there was…
- [Accident 20081017852999A](https://openairdocs.org/incident/20081017852999A), Oct 17, 2008: Cessna 182T (N771CP), Hartford, CT, Substantial damage. Pilot in charge as sole occupant on board had departed from runway 2 at Brainard airport (hfd), Hartford, Connecticut enroute to lawrence municipal airport…
- [Accident 20070726013259A](https://openairdocs.org/incident/20070726013259A), Jul 26, 2007: Cessna 182T (N1049V), Junction, TX, Substantial damage. (-23) On July 26, 2007 aircraft N1049V piloted by [privacy data omitted] attempted a landing at grand Junction regional, grand Junction, colo (kgjt) on runway…

All 52: https://openairdocs.org/engine/lycoming-io-540-ab1a5/incidents.md

## Service difficulty reports (138, newest 50)

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

- [SDR 2026FA0000094](https://openairdocs.org/sdr/2026FA0000094), Feb 10, 2026: DOUBLER. CRACKED. DURING FIREWALL CLEANING/INSPECTION DURING ANNUAL/100HR INSPECTION, A CRACK, APPROXIMATELY 1.0" IN LENGTH WAS DISCOVERED IN THE UPPER RADIUS OF THE LEFT HAND SI
- [SDR 2026FA0000074](https://openairdocs.org/sdr/2026FA0000074), Feb 2, 2026: DOUBLER. CRACKED. DURING FIREWALL CLEANING/INSPECTION DURING ANNUAL/100HR INSPECTION, A CRACK, APPROXIMATELY 2.3 IN LENGTH WAS DISCOVERED IN THE UPPER RADIUS OF THE LEFT HAND SID
- [SDR 2026FA0000073](https://openairdocs.org/sdr/2026FA0000073), Dec 2, 2025: DOUBLER. CRACKED. DURING FIREWALL CLEANING IN PREPARATION OF INSTALLATION OF NEWLY OVERHAULED ENGINE, A CRACK, APPROXIMATELY 2.3 IN LENGTH WAS DISCOVERED IN THE UPPER RADIUS OF T
- [SDR ODAR2025080600001](https://openairdocs.org/sdr/ODAR2025080600001), Aug 6, 2025: SKIN. CRACKED. DURING 100HR / ANNUAL INSPECTION FOUND RH INBOARD FLAP COVE SKIN CRACKED ALONG WITH FLAP TRACK RIVETS WORKING OUT. INSPECTED AREA AROUND FLAP AND FOUND THE INBD
- [SDR 2023FA0000395](https://openairdocs.org/sdr/2023FA0000395), Jul 31, 2023: ALTERNATOR. SEIZED. CREW REPORTED DURING GROUND RUN AND PRIOR TO TAXI, ENGINE MADE A LOUD NOISE, AND THE ENGINE WAS SHUT DOWN IMMEDIATELY. THIS HAPPENED PRIOR TO FLIGHT, WITH NO IN
- [SDR 2023FA0000310](https://openairdocs.org/sdr/2023FA0000310), Jun 12, 2023: POINTS. BROKEN. TEST, TEST, TEST: MAGNETO POINT FAILURE
- [SDR 2022FA0000270](https://openairdocs.org/sdr/2022FA0000270), May 31, 2022: POINTS. BROKEN. MAGNETO POINT FAILURE
- [SDR JRUR2020032560002](https://openairdocs.org/sdr/JRUR2020032560002), Mar 25, 2020: MAGNETO. UNSERVICEABLE. SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS F
- [SDR JRUR202003120011](https://openairdocs.org/sdr/JRUR202003120011), Mar 12, 2020: IMPULSE COUPLING. UNSERVICEABLE. SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS F
- [SDR JRUR202003120012](https://openairdocs.org/sdr/JRUR202003120012), Mar 12, 2020: IMPULSE COUPLING. UNSERVICEABLE. SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS F
- [SDR JRUR202003060001](https://openairdocs.org/sdr/JRUR202003060001), Mar 6, 2020: MAGNETO. UNSERVICEABLE. SUPPLEMENTAL INFORMATION SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MAN
- [SDR JRUR202003060003](https://openairdocs.org/sdr/JRUR202003060003), Mar 6, 2020: MAGNETO. UNSERVICEABLE. SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS F
- [SDR JRUR202003060004](https://openairdocs.org/sdr/JRUR202003060004), Mar 6, 2020: MAGNETO. UNSERVICEABLE. SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS F
- [SDR JRUR202003060005](https://openairdocs.org/sdr/JRUR202003060005), Mar 6, 2020: MAGNETO. UNSERVICEABLE. SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS F
- [SDR JRUR2020030560002](https://openairdocs.org/sdr/JRUR2020030560002), Mar 5, 2020: MAGNETO. UNSERVICEABLE. SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS F
- [SDR 2020FA0000029](https://openairdocs.org/sdr/2020FA0000029), Jan 11, 2020: HOSE. CRACKED. SEVERAL MONTHS AGO I HAD A STRONG SMELL OF GAS IN THE CABIN, IT WAS TRACED DOWN TO A CRACKED "RUBBER" HOSE BETWEEN THE WING TANK AND THE TUBE DOWN TO THE ENGINE
- [SDR CA190723009](https://openairdocs.org/sdr/CA190723009), Jul 22, 2019: WHEEL. DAMAGED. (CAN) DURING AN OPERATION 3 INSPECTION IT WAS DISCOVERED THAT BOTH LEFT AND RIGHT MAIN LANDING GEAR TIRES HAD BEEN EXPOSED TO A SKID WHICH RENDERED THE TIRES UN
- [SDR JRUR201905060001](https://openairdocs.org/sdr/JRUR201905060001), May 6, 2019: EXHAUST VALVE. OUT OF TOLERANCE. DURING PERFORMANCE OF SB 388C, IT WAS FOUND THAT THE NR 3 CYLINDER EXHAUST VALVE TO GUIDE CLEARANCE MEASURED .031". THIS EXCEEDS THE MAXIMUM ALLOWABLE CLEARANCE
- [SDR JRUR201905060002](https://openairdocs.org/sdr/JRUR201905060002), May 6, 2019: EXHAUST VALVE. OUT OF TOLERANCE. DURING PERFORMANCE OF SB 388C, IT WAS FOUND THAT THE NR 4 CYLINDER EXHAUST VALVE TO GUIDE CLEARANCE MEASURED .031". THIS EXCEEDS THE MAXIMUM ALLOWABLE CLEARANCE
- [SDR 2018FA0000339](https://openairdocs.org/sdr/2018FA0000339), Aug 20, 2018: AUTOPILOT SYS. CORRUPTED. AUTOPILOT INTEGRATED WITH G1000 REFUSED TO DISCONNECT.
- [SDR 2018FA0000207](https://openairdocs.org/sdr/2018FA0000207), Jul 10, 2018: HOUSING. DAMAGED. AIR FILTER HOUSING PN 07506212 DAMAGED AT THE OUTLET. SUSPECT DAMAGE WAS CAUSED BY OVER TIGHTENING OF THE CLAMP THAT SECURES THE RUBBER COUPLING TO THE DUCT. ME
- [SDR 2017FA0000460](https://openairdocs.org/sdr/2017FA0000460), Aug 23, 2017: SPROCKET. BROKEN. ELEVATOR TRIM LOCKED UP IN FLIGHT. TRIM ACTUATOR SPROCKET FOUND TO BE BROKEN WHERE PIN ATTACHES IT TO ACTUATOR ASSEMBLY.
- [SDR 2017FA0000303](https://openairdocs.org/sdr/2017FA0000303), Aug 1, 2017: BUSHING. SPUN. DURING THE INSPECTION OF CONNECTING ROD BUSHING PER SB632A, TECHNICIAN FOUND 4 CONNECTING ROD BUSHINGS SPUN WHILE PERFORMING CHECK PER INSTRUCTIONS IDENTIFIED I
- [SDR 2017FA0000243](https://openairdocs.org/sdr/2017FA0000243), Jun 12, 2017: BEARING. FAILED. AFTER REMOVAL OF THE CYLINDER, FOUND THAT THE CRANKSHAFT MAIN BEARINGS FROM THE NR 6 CYLINDER WERE CRUSHED AND PARTS OF THEM MISSING, LATER FOUND THE REMAINING 
- [SDR 2017FA0000103](https://openairdocs.org/sdr/2017FA0000103), Mar 17, 2017: PUSHROD. SCORED. DURING THE INSPECTION OF PUSHRODS FOUND TWO PUSHRODS AT THE NR 2 AND 6, SCORED BEYOND LIMITS. REPLACED THE PUSHRODS AND MATING ROCKER ARMS WITH NEW.
- [SDR 2017FA0000105](https://openairdocs.org/sdr/2017FA0000105), Mar 17, 2017: PUSHROD. SCORED. DURING INSPECTION OF PUSHRODS FOUND THE NR 5, 4, & 1 PUSHRODS WORN OUT OF TOLERANCE, BOTH PUSHRODS AND ROCKER ARMS REPLACED WITH NEW.
- [SDR 2017FA0000106](https://openairdocs.org/sdr/2017FA0000106), Mar 17, 2017: PUSHROD. SCORED. DURING THE PUSHROD INSPECTION FOUND THE NR 3, 4, 5, AND 6 PUSHRODS SCORED AND REPLACED.
- [SDR 2017FA0000090](https://openairdocs.org/sdr/2017FA0000090), Mar 7, 2017: PUSHROD. SCORED. DURING INSPECTION OF SA-167A FOUND THE NR 2 CYLINDER EXHAUST PUSHROD SCORED, REPLACED THE PUSHROD AND ROCKER ARM.
- [SDR 2017FA0000092](https://openairdocs.org/sdr/2017FA0000092), Mar 7, 2017: PUSHROD. SCORED. DURING INSPECTION OF PUSHRODS, FOUND NR 4 CYLINDER EXHAUST PUSHROD SCORED, REPLACED PER SA-167A.
- [SDR 2017FA0000086](https://openairdocs.org/sdr/2017FA0000086), Mar 6, 2017: PUSHROD. SCORED. FIVE PUSHRODS FOUND TO BE SCORED ON THE NR 5, 3 AND 4 CYLINDERS, FOUND DURING THE SA-167A INSPECTION.
- [SDR 2017FA0000087](https://openairdocs.org/sdr/2017FA0000087), Mar 6, 2017: PUSHROD. SCORED. FIVE PUSHRODS FOUND TO BE SCORED ON THE NR 5, 3 AND 4 CYLINDERS, FOUND DURING THE SA-167A INSPECTION.
- [SDR 2017FA0000051](https://openairdocs.org/sdr/2017FA0000051), Feb 9, 2017: PUSHROD. OUT OF LIMITS. DURING INSPECTION OF PUSHRODS, FOUND 6 PUSHRODS AND 6 ROCKER ARMS OUT OF LIMITS IN ACCORDANCE WITH SA-167A, PARTS REPLACED UNDER WARRANTY.
- [SDR 2017FA0000052](https://openairdocs.org/sdr/2017FA0000052), Feb 9, 2017: PUSHROD. WORN. INSPECTION SHOWS 10 OF THE PUSHRODS HAVE WEAR. THE MAINTENANCE PROVIDER SAID THE 10 PUSHRODS, ROCKER ARMS AND ALL OF THE VALVE ROCKER SHAFTS NEED TO BE REPLACED
- [SDR 2017FA0000053](https://openairdocs.org/sdr/2017FA0000053), Feb 9, 2017: PUSHROD. SCORED. INSPECTION REVEALED NR 5 CYLINDER, EXHAUST AND INTAKE, NR 3 CYLINDER EXHAUST AND INTAKE AND NR 4 CYLINDER EXHAUST AND INTAKE PUSHRODS SCORED BEYOND LIMITS AND R
- [SDR 2017FA0000043](https://openairdocs.org/sdr/2017FA0000043), Feb 3, 2017: PUSHROD. SCORED. NR 1 INTAKE AND EXHAUST SCORED, NR 4 INTAKE AND EXHAUST SCORED, AND NR 5 EXHAUST SCORED, PARTS REPLACED PER SA-167A.
- [SDR 2017FA0000031](https://openairdocs.org/sdr/2017FA0000031), Jan 30, 2017: PUSHROD. SCORED. NR 2 AND 6 PUSHRODS AND ROCKER ARMS REPLACED FOR EXHAUST SIDE DUE TO SA-167A INSPECTION. SCORING IS OBVIOUS AND TRANSLATED TO ROCKER ARM AS WELL. REPLACED PARTS
- [SDR 2016FA0000672](https://openairdocs.org/sdr/2016FA0000672), Dec 28, 2016: PUSHROD. SCORED. 7 PUSHRODS AND 7 ROCKERS REQUIRE REPLACEMENT DUE TO INSPECTION CRITERIA FROM SA-167A. SCORING IS BEYOND LIMITS.
- [SDR 2016FA0000634](https://openairdocs.org/sdr/2016FA0000634), Dec 15, 2016: PUSHROD. SCORED. NR 3 CYLINDER PUSHRODS AND ROCKER REPLACED DUE TO INSPECTION IAW SA-167A. THERE WAS ALSO REPORTED STUCK VALVES AT THE NR 3 AND 6 EXHAUST VALVE ASSEMBLY.
- [SDR 2016FA0000629](https://openairdocs.org/sdr/2016FA0000629), Dec 13, 2016: PUSHROD. SCORED. TWO PUSHRODS AND MATING ROCKER ARMS HAVE SCORING THAT IS BEYOND THE LIMITS OF THE IAW SA-167A. PARTS REPLACED IN ACCORDANCE WITH SA.
- [SDR 2016FA0000630](https://openairdocs.org/sdr/2016FA0000630), Dec 13, 2016: PUSHROD. SCORED. TWO PUSHRODS AND ROCKER MATES SCORED, REPLACING PARTS IAW SA-167A.
- [SDR 2016FA0000603](https://openairdocs.org/sdr/2016FA0000603), Dec 7, 2016: PUSHROD. SCORED. ALL PUSHRODS AND ROCKER ARMS REQUIRE REPLACEMENT DUE TO INSPECTION IAW SA-167A.
- [SDR 2016FA0000604](https://openairdocs.org/sdr/2016FA0000604), Dec 7, 2016: PUSHROD. SCORED. NR 2 INTAKE AND NR 3 EXHAUST PUSHRODS HAVE SEVER SCORING ON THE ROCKER ARM END. REPLACING IN ACCORDANCE WITH SA-167A.
- [SDR 2016FA0000591](https://openairdocs.org/sdr/2016FA0000591), Dec 6, 2016: PUSHROD. SCORED. PUSHRODS INSPECTED PER SA-167A AND 6 PUSHRODS SHOW SIGNS OF SCORING.
- [SDR 2016FA0000593](https://openairdocs.org/sdr/2016FA0000593), Dec 6, 2016: PUSHROD. SCORED. PUSHROD SCORING ON THE ROCKER END SIDE WITH THE ROCKER SHOWING SIGNS OF SCORING AS WELL, REPLACED IAW SA-167A.
- [SDR 2016FA0000148](https://openairdocs.org/sdr/2016FA0000148), Mar 2, 2016: VALVE. STUCK. OWNER REPORTED LOSS OF POWER, EXTREMELY ROUGH RUNNING ENGINE, UNABLE TO MAINTAIN ALTITUDE, FORCED LANDING. ENGINE INSPECTION FOUND NR 4 CYLINDER EXHAUST VALVE S
- [SDR 2015FA0000503](https://openairdocs.org/sdr/2015FA0000503), Oct 27, 2015: ALTERNATOR. FAILED. ALTERNATOR FAILED TO CHARGE DURING CROSS COUNTRY FLIGHT. INSPECTION SHOWS SEPARATION OF ALTERNATOR CASE HALVES. CASE HALF THROUGH BOLTS HELD COMPONENT INTACT BU
- [SDR CA151013008](https://openairdocs.org/sdr/CA151013008), Sep 29, 2015: MAGNETO. OUT OF ADJUST. (CAN) MAGNETO TIMING DRIFTED 5 DEGREES WITH ONLY 55 HOURS SINCE 500HR INSPECTION.
- [SDR CA151013009](https://openairdocs.org/sdr/CA151013009), Sep 29, 2015: MAGNETO. OUT OF ADJUST. (CAN) MAGNETO TIMING DRIFTED 7 DEGREES WITH ONLY 55 HRS SINCE 500HR INSPECTION.
- [SDR 2015FA0000206](https://openairdocs.org/sdr/2015FA0000206), May 13, 2015: CYLINDER. CRACKED. UPON REMOVAL OF ROCKER COVER FOR GASKET REPLACEMENT, THE OTBD ROCKER SHAFT ON THE EXHAUST WAS FOUND TO BE CRACKED. ON REMOVAL OF THE ROCKER SHAFT, THE BOSS CAME
- [SDR NJ5R2015FA0000198](https://openairdocs.org/sdr/NJ5R2015FA0000198), Feb 19, 2015: BAFFLE. WARPED. FORWARD MUFFLER BAFFLE ON MUFFLER SYSTEM IS WARPED AND DISTORTED AFTER 199 HRS IN SERVICE. BAFFLE MATERIAL IS TOO THIN FOR APPLICATION.

All 138: https://openairdocs.org/engine/lycoming-io-540-ab1a5/reports.md

## STCs that may be installed (OpenAirDocs) (41)

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 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. Lists IO-540 Series
- [STC SE01930NY](https://openairdocs.org/stc/SE01930NY): Installation of Casper Labs 90 degree oil filter housing adapter. Casper Labs Inc
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc
- [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 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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