Title: Mandatory replacement of any rudder/rudder post made from 1025 carbon steel with a rudder/rudder post made from 4130N steel on certain Piper aircraft models.
Effective Date: February 11, 2025
Subject: The FAA is adopting a new airworthiness directive (AD) for certain FS 2001 Corp, FS 2002 Corporation, FS 2003 Corporation, Piper, and Piper Aircraft, Inc. (Piper) airplanes. This AD was prompted by reports of broken rudders. This AD requires replacing any rudder equipped with a rudder post made from a certain carbon steel with a rudder equipped with a rudder post made from a certain low-alloy steel. The FAA is issuing this AD to address the unsafe condition on these products.