Austro Engine E4 Airworthiness Directives

Every AD in the library whose text names the Austro Engine E4, of which 453 are registered in the US.

11 not superseded, 5 of them with a repeat action. 17 listed in all, newest published February 25, 2025.

Published sinceHide 6 supersededOnly repeat actions11 of 17

2025-02-12Reciprocating engine cylinder sectionEngineSupersedes 2023-20-03Repeat actionFeb 25, 2025
2024-19-10Requires repetitive borescope inspections (BSIs) for cracks on the pistons, and, if necessary, removal from service and replacement of the piston, and a fuel sample analysis for water contamination and, if...EngineRepeat actionSep 24, 2024
2020-22-14Requires engine modification by installing a waste gate control-rod fail-safe bridge and new spring- loaded circlip that terminates the initial and repetitive replacement requirements of AD 2018-07-16Reciprocating engine supercharger · EngineSupersedes 2018-07-16Repeat actionNov 5, 2020
2020-14-07Requires replacement of the timing chain and fuel injectors on the affected Austro Engine GmbH model E4 and E4P diesel piston enginesFuel control/reciprocating engines and code 8520, reciprocating engine power section · EngineRepeat actionJul 21, 2020
2011-18-19Requires the initial and repetitive inspections of AD 2010-23-09, but also requires installing HP fuel pump part number (P/N) E4A-30-200-000, as mandatory terminating action to the repetitive inspectionsAustro Engine GmbH Model E4 Diesel Piston Engines · EngineSupersedes 2010-23-09Repeat actionSep 1, 2011
2024-05-01Requires replacing certain cap screws with a part eligible for installation and prohibits installing certain cap screws on any inner main bearing position of any engineAustro Engine GmbH Engines · EngineMar 5, 2024
2022-03-03Reciprocating engine power sectionEngineSupersedes 2021-22-20Jan 28, 2022
2021-24-10Requires replacing a certain oil pump as well as the oil filter and engine oilReciprocating engine oil system · EngineSupersedes 2021-09-04Nov 19, 2021
2021-17-01Requires removing a certain oil pump from service and replacing it with a part eligible for installationReciprocating engine oil system · EngineAug 6, 2021
2020-15-05Requires amendment of certain existing AFMs to limit the use of windmill restarts and removes the timing chain replacement requirement in AD 2018-18-02Reciprocating engine power section · EngineSupersedes 2018-18-02Jul 27, 2020
2014-08-10Requires removing certain additional P/N waste gate controllers from serviceAustro Engine GmbH Engines · EngineSupersedes 2013-14-08Apr 29, 2014

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.