{"abstract":"This amendment adopts a new airworthiness directive (AD) that is applicable to certain Boeing Model 737 series airplanes. This action requires a one-time general visual inspection of the seat locks and seat tracks of the flightcrew seats to ensure that the seats lock in position and to verify that lock nuts and bolts of adequate length are installed on the rear tracklock bracket, and corrective action, if necessary. This action is necessary to prevent uncommanded movement of the flightcrew seats during acceleration and take-off of the airplane, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.","action":"Final rule; request for comments.","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/2000/05/26/00-13085.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"65 FR 34063","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective June 12, 2000.","disposition_notes":null,"docket_ids":["Docket No. 2000-NM-111-AD","Amendment 39-11745","AD 2000-10-21"],"dockets":[],"document_number":"00-13085","effective_on":"2000-06-12","end_page":34065,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2000/05/26/00-13085.xml","html_url":"https://www.federalregister.gov/documents/2000/05/26/00-13085/airworthiness-directives-boeing-model-737-series-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/00-13085?publication_date=2000-05-26","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2000-05-26/00-13085/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":53,"last_updated":"2026-04-04 14:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2000-05-26/pdf/00-13085.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2000-05-26","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2000/05/26/00-13085.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":34063,"subtype":null,"title":"Airworthiness Directives; Boeing Model 737 Series Airplanes","toc_doc":"Boeing","toc_subject":"Airworthiness directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":65}