Lycoming TIO-540 Airworthiness Directives

Every AD in the library whose text names the Lycoming TIO-540, of which 6,911 are registered in the US.

15 not superseded, 4 of them with a repeat action. 19 listed in all, newest published October 31, 2024.

Published sinceHide 4 supersededOnly repeat actions15 of 19

2024-21-02Requires repetitive oil inspections for bronze metal particulates and, if found, additional inspections of the connecting rod bushings for damage, proper fit, movement, and wear, and replacement if necessaryEngineRepeat actionOct 31, 2024
2017-11-10Requires initial and repetitive inspections of engine exhaust system weld joints and torque checking the exhaust pipe flange mounting nutsEngine exhaust system · EngineRepeat actionJun 13, 2017
2015-19-07Lycoming Engines Fuel Injected Reciprocating EnginesEngineSupersedes 2011-26-04Repeat actionSep 29, 2015
2002-12-07Textron Lycoming Reciprocating EnginesEngineSupersedes 2000-18-53Repeat actionJun 18, 2002
2015-10-06Requires inspection of the engine exhaust pipes for cracks and replacement of the turbocharger mounting bracketLycoming Engines Reciprocating Engines (Type Certificate Previously Held by Textron Lycoming Division, AVCO Corporation) · EngineMay 28, 2015
2013-21-02Requires removing certain HET turbochargers from service before further flightLycoming Engines and Continental Motors, Inc. Reciprocating Engines · EngineSupersedes 2012-24-09Oct 29, 2013
2012-19-01Lycoming Engines Reciprocating EnginesEngineSupersedes 2006-20-09Sep 19, 2012
2011-15-10Requires removing from service, certain fuel servosSuperior Air Parts and Lycoming Engines (Formerly Textron Lycoming) Fuel-Injected Engines · EngineAug 1, 2011
2011-13-03Requires inspecting certain Lycoming and TCM reciprocating engines with certain Hartzell Engine Technologies, LLC (HET) turbochargers installed, and disassembly and cleaning of the turbocharger center housing and...Lycoming Engines (Type Certificate Previously Held by Textron Lycoming) and Teledyne Continental Motors (TCM) Turbocharged Reciprocating Engines · EngineJun 28, 2011
2005-19-11Requires replacing certain crankshaftsLycoming Engines (Formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, LO-360, AEIO-540, IO-540, O-540, and TIO-540 Series Reciprocating Engines · EngineSep 16, 2005
2004-05-24Lycoming Engines (Formerly Textron Lycoming) AEIO-540, IO-540, LTIO-540, O-540, and TIO-540 Series Reciprocating EnginesEngineSupersedes 2002-23-06Mar 15, 2004
2003-14-03Textron Lycoming Fuel Injected Reciprocating EnginesEngineSupersedes 98-18-12Jul 10, 2003
2002-19-03Textron Lycoming IO-540, LTIO-540 and TIO-540 Series Reciprocating EnginesEngineSupersedes 2002-17-53, 2002-04-51Sep 20, 2002
97-15-11Avco Lycoming and Textron Lycoming Reciprocating EnginesEngineSupersedes 97-01-03Jul 28, 1997
91-21-01 R1Textron Lycoming Model TIO-540-S1AD Reciprocating EnginesEngineJun 7, 1996

Listed by the model designations in each AD's text. An AD written for a part number, or for "all" engines of a maker, may name no model and so not appear here: search the library for the part or the maker as well.