{"abstract":"The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by reports from multiple operators of pitch oscillation events due to excessive horizontal stabilizer freeplay. This AD requires measuring the freeplay of the horizontal stabilizer pivot hinges and the jackscrew and applicable on- condition actions. 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/2026/10/19/2026-21333.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"citation":"91 FR 65959","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD is effective November 23, 2026.","disposition_notes":null,"docket_ids":["Docket No. FAA-2025-5403","Project Identifier AD-2025-01167-T","Amendment 39-23487","AD 2026-20-14"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2025-5403-0002"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2026-10-19","updated_at":"2026-10-19T09:57:11.972-04:00","comment_url":"https://www.regulations.gov/commenton/FAA-2025-5403-0012","allow_late_comments":false,"id":"FAA-2025-5403-0012","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":1,"id":"FAA-2025-5403","title":"AD-2025-01167-T; The Boeing Company Model 737-600/-700/-700C/-800/-900/-900ER Series airplanes; Horizontal Stabilizer - Pivot Hinge and Jackscrew Freeplay Inspection"}],"document_number":"2026-21333","effective_on":"2026-11-23","end_page":65961,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/10/19/2026-21333.xml","html_url":"https://www.federalregister.gov/documents/2026/10/19/2026-21333/airworthiness-directives-the-boeing-company-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-21333?publication_date=2026-10-19","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-10-19/2026-21333/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":383,"last_updated":"2026-10-28 08:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-10-19/pdf/2026-21333.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-21333.pdf?1792154721","publication_date":"2026-10-19","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/10/19/2026-21333.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":{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2025-5403-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives"},"comments_count":0,"agency_id":"FAA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FAA-2025-5403","supporting_documents_count":1,"docket_id":"FAA-2025-5403","document_id":"FAA-2025-5403-0012","regulation_id_number":"2120-AA64","title":"AD-2025-01167-T; The Boeing Company Model 737-600/-700/-700C/-800/-900/-900ER Series airplanes; Horizontal Stabilizer - Pivot Hinge and Jackscrew Freeplay Inspection","checked_regulationsdotgov_at":"2026-10-20T15:55:05Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":65959,"subtype":null,"title":"Airworthiness Directives; The Boeing Company Airplanes","toc_doc":"The Boeing Company Airplanes","toc_subject":"Airworthiness Directives","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":91}