The FAA has extended the comment period on an AD that would require the replacement of rudders on almost 31,000 Piper aircraft made before 1974. In a Notice of Proposed Rulemaking in October, the agency ordered every rudder equipped with a rudder post made of 1025 carbon steel be replaced with rudders that have posts made of 4130N low-alloy steel. Piper switched from 1025 to 4130N in 1974. The estimated cost of the rudder replacement is $3,000. The comment period was extended to Feb. 20, 2024.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/piper-rudder-ad-comment-period-extended