Superseded. This AD was superseded by AD 2026-04-11. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2024-21-02
Effective 12/05/2024 · Published 10/31/2024
Airworthiness Directives; Lycoming Engines
Summary
The FAA is adopting a new airworthiness directive (AD) for Lycoming Engines (Lycoming) model engines that have a certain connecting rod assemblies installed. This AD was prompted by several reports of connecting rod failures, which resulted in uncontained engine failure and in-flight shutdowns (IFSDs). This AD requires repetitive oil inspections for bronze metal particulates and, if found, additional inspections of…