Data / Federal rules / 2024-21804
Airworthiness Directives; Austro Engine GmbH Engines
The Federal Aviation Administration published this final rule in the Federal Register on September 24, 2024. It took effect on October 9, 2024. Comments closed on November 8, 2024.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain Austro Engine GmbH (Austro) Model E4 and E4P engines. This AD was prompted by reports of engine failures and an investigation where cracks were discovered on the pistons. This AD requires 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 contamination is found, replacement of the high-pressure pump (HPP), injectors, and fuel rails. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2024-21804
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- September 24, 2024
- Takes effect
- October 9, 2024
- Comments due
- November 8, 2024
- Dates
- This AD is effective October 9, 2024.
- Docket
- Docket No. FAA-2024-2313; Project Identifier MCAI-2024-00493-E; Amendment 39-22852; AD 2024-19-10
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in September 2024
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.