{"abstract":"The FAA is adopting a new airworthiness directive (AD) for certain Baykar Piaggio Aerospace S.p.A. (type certificate previously held by Piaggio Aviation S.p.A.) (Piaggio) Model P-180 airplanes. This AD was prompted by reports of corrosion and cracks affecting the vertical stabilizer. This AD requires repetitive visual and non- destructive testing (NDT) inspections, a one-time NDT inspection of the vertical stabilizer assembly, and, depending on findings, accomplishment of corrective actions. In addition, this AD provides a terminating action for the repetitive inspections if certain actions of the service material are accomplished. The FAA is issuing this AD to address the unsafe condition on these products.","action":"Final rule.","agencies":[{"raw_name":"DEPARTMENT OF TRANSPORTATION","name":"Transportation Department","id":492,"url":"https://www.federalregister.gov/agencies/transportation-department","json_url":"https://www.federalregister.gov/api/v1/agencies/492","parent_id":null,"slug":"transportation-department"},{"raw_name":"Federal Aviation Administration","name":"Federal Aviation Administration","id":159,"url":"https://www.federalregister.gov/agencies/federal-aviation-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/159","parent_id":492,"slug":"federal-aviation-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/04/06/2026-06599.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"91 FR 17132","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective May 11, 2026.","disposition_notes":null,"docket_ids":["Docket No. FAA-2026-0019","Project Identifier MCAI-2025-00293-A","Amendment 39-23294","AD 2026-06-05"],"dockets":[],"document_number":"2026-06599","effective_on":"2026-05-11","end_page":17135,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/04/06/2026-06599.xml","html_url":"https://www.federalregister.gov/documents/2026/04/06/2026-06599/airworthiness-directives-baykar-piaggio-aerospace-spa-type-certificate-previously-held-by-piaggio","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-06599?publication_date=2026-04-06","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-04-06/2026-06599/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":15,"last_updated":"2026-04-04 10:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-04-06/pdf/2026-06599.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2026-04-06","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/04/06/2026-06599.txt","regulation_id_number_info":{"2120-AA64":{"issue":"202504","html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202504&RIN=2120-AA64&operation=OPERATION_EXPORT_XML","priority_category":"Routine and Frequent"}},"regulation_id_numbers":["2120-AA64"],"regulations_dot_gov_info":{},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":17132,"subtype":null,"title":"Airworthiness Directives; Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes","toc_doc":"Baykar Piaggio Aerospace S.p.A. (Type Certificate Previously Held by Piaggio Aviation S.p.A.) Airplanes","toc_subject":"Airworthiness Directives","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":91}