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Airworthiness Directive

AD 2024-19-10 89 FR 77772 Active

Federal Aviation Administration · 14 CFR part 39

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…

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FR document
2024-21804
Amendment
39-22852
Published
2024-09-24
Effective
2024-10-09
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2024-19-10 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2024-19-10

FR doc 2024-21804 · 89 FR 77772

AD 2024-19-10Published 2024-09-24Effective 2024-10-09

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

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.

Full official abstract

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.

More directives for Austro Engine E4

  1. AD 2025-02-12 Airworthiness Directives; Austro Engine GmbH Engines Effective 2025-04-01
  2. AD 2024-05-01 Airworthiness Directives; Austro Engine GmbH Engines Effective 2024-03-11
  3. AD 2023-20-03 Airworthiness Directives; Austro Engine GmbH Engines Effective 2023-12-11
  4. AD 2022-03-03 Airworthiness Directives; Austro Engine GmbH Engines Effective 2022-02-14
  5. AD 2021-24-10 Airworthiness Directives; Austro Engine GmbH Engines Effective 2021-12-27

All Austro Engine E4 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index