{"id":3763,"date":"2024-11-12T09:59:16","date_gmt":"2024-11-12T15:59:16","guid":{"rendered":"https:\/\/www.flightschoollist.com\/aviation-blog\/?p=3763"},"modified":"2024-11-12T10:04:05","modified_gmt":"2024-11-12T16:04:05","slug":"new-lycoming-ad-connecting-rod-bearing-failure","status":"publish","type":"post","link":"https:\/\/www.flightschoollist.com\/aviation-blog\/new-lycoming-ad-connecting-rod-bearing-failure\/","title":{"rendered":"New Lycoming AD – Connecting Rod Bearing Failure"},"content":{"rendered":"\n

FAA Issues New Airworthiness Directive for Certain Lycoming Engines.<\/p>\n\n\n\n

The Federal Aviation Administration (FAA) has recently published an important Airworthiness Directive (AD) affecting specific Lycoming engine models. This AD, issued on October 31, 2024, addresses a critical safety concern related to connecting rod bearing failures.<\/p>\n\n\n\n

Scope and Impact<\/h2>\n\n\n\n

The directive applies to approximately 26,500 Lycoming engines installed on various aircraft in the United States. These engines were manufactured between January 2009 and February 2017.<\/p>\n\n\n\n

The Issue<\/h2>\n\n\n\n

The FAA has identified a problem with inadequate lubrication of connecting rod bearings in certain Lycoming engine models. This issue can potentially lead to engine failure or seizure, posing a significant safety risk.<\/p>\n\n\n\n

Required Actions<\/h2>\n\n\n\n

The AD<\/a> outlines specific steps that aircraft owners and operators must take:<\/p>\n\n\n\n

    \n
  1. For engines with 200 or more hours since the last overhaul or repair, an oil change and filter inspection are required within the next 10 hours of operation.<\/li>\n\n\n\n
  2. Repetitive oil changes and filter inspections are mandated every 50 hours thereafter.<\/li>\n\n\n\n
  3. If metal is found in the oil filter, affected parts must be replaced before further flight.<\/li>\n<\/ol>\n\n\n\n

    Compliance and Costs<\/h2>\n\n\n\n

    The FAA estimates the cost of compliance to be approximately $255 per engine. This includes the expenses for oil inspections, connecting rod bushing inspections, and potential replacements.<\/p>\n\n\n\n

    Background and Context<\/h2>\n\n\n\n

    This AD is part of an ongoing effort by both Lycoming Engines and the FAA to address safety concerns stemming from non-conforming connecting rod bushings manufactured by a former Lycoming supplier. It builds upon previous service bulletins issued by Lycoming in 2017, including Service Bulletins 630 and 480F.<\/p>\n\n\n\n

    Next Steps for Operators<\/h2>\n\n\n\n

    Aircraft operators should:<\/p>\n\n\n\n

      \n
    1. Check if their engine is affected using Lycoming’s Engine Serial Number History Search.<\/li>\n\n\n\n
    2. Review the full text of AD 2024-21-02 for detailed compliance instructions.<\/li>\n\n\n\n
    3. Consult with their maintenance providers to ensure timely compliance with the directive.<\/li>\n<\/ol>\n\n\n\n

      For technical questions or clarifications, operators can contact Lycoming’s Technical Support team at 1-800-258-3279 or Technicalsupport@lycoming.com<\/a>.<\/p>\n\n\n\n

      You can view and download the AD PDF here: AD 2024-21-02<\/a><\/strong><\/p>\n\n\n\n

      This Airworthiness Directive underscores the importance of ongoing maintenance and safety oversight in aviation. By following these mandated procedures, operators can help ensure the continued airworthiness of their Lycoming-powered aircraft.<\/p>\n\n\n\n

      <\/p>\n","protected":false},"excerpt":{"rendered":"FAA Issues New Airworthiness Directive for Certain Lycoming Engines. The Federal Aviation Administration (FAA) has recently published an…","protected":false},"author":1,"featured_media":3769,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"","csco_page_header_type":"","csco_page_load_nextpost":"","footnotes":""},"categories":[27,350],"tags":[345,349,346,335,348,253,347],"class_list":["post-3763","post","type-post","status-publish","format-standard","has-post-thumbnail","category-aircraft-ownership","category-faa-ads","tag-ad","tag-aircraft-maintenance","tag-airworthiness-directive","tag-aviation-safety","tag-connecting-rod-bearing-failures","tag-faa","tag-lycoming","cs-entry"],"_links":{"self":[{"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/posts\/3763","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/comments?post=3763"}],"version-history":[{"count":0,"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/posts\/3763\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/media\/3769"}],"wp:attachment":[{"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/media?parent=3763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/categories?post=3763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.flightschoollist.com\/aviation-blog\/wp-json\/wp\/v2\/tags?post=3763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}