{"abstract":"The FAA is adopting a new airworthiness directive (AD) for certain McCauley Propeller Systems propeller assemblies installed on BAE Systems (Operations) Limited Jetstream model 4100 series airplanes. This AD requires removing certain propeller hubs from service at new reduced life limits and eddy current inspections (ECIs) of the propeller hub. This AD results from three reports of cracked propeller hubs. We are issuing this AD to prevent cracked propeller hubs, which could cause failure of the propeller hub, blade separation, and loss of control of the airplane.","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/2005/11/30/05-23431.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"70 FR 71756","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"This AD becomes effective December 15, 2005. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the regulations as of December 15, 2005.","disposition_notes":null,"docket_ids":["Docket No. FAA-2005-22690","Directorate Identifier 2005-NE-35-AD","Amendment 39-14388","AD 2005-24-08"],"dockets":[],"document_number":"05-23431","effective_on":"2005-12-15","end_page":71758,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2005/11/30/05-23431.xml","html_url":"https://www.federalregister.gov/documents/2005/11/30/05-23431/airworthiness-directives-mccauley-propeller-systems-five-blade-propeller-assemblies","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/05-23431?publication_date=2005-11-30","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2005-11-30/05-23431/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":32,"last_updated":"2026-04-04 14:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2005-11-30/pdf/05-23431.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2005-11-30","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2005/11/30/05-23431.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":{"checked_regulationsdotgov_at":"2011-11-12T17:36:03Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":71756,"subtype":null,"title":"Airworthiness Directives; McCauley Propeller Systems Five-Blade Propeller Assemblies","toc_doc":"McCauley Propeller Systems","toc_subject":"Airworthiness directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Rule","volume":70}