{"abstract":"We propose to supersede Airworthiness Directive (AD) 2016-13- 06, which applies to certain Saab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes. AD 2016-13-06 requires a revision of the applicable airplane flight manual (AFM), repetitive inspections of the horizontal stabilizer de-icing boots, and applicable corrective actions. Since we issued AD 2016-13-06, the manufacturer has developed an improved de-icing boot. This proposed AD would continue to require a revision of the applicable AFM, repetitive inspections of the horizontal stabilizer de-icing boots, and applicable corrective actions. This proposed AD would also require replacement of single stitched de-icing boots with improved double stitched boots, and re- identification of the modified horizontal stabilizer leading edge. We are proposing this AD to address the unsafe condition on these products.","action":"Notice of proposed rulemaking (NPRM).","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/2018/04/17/2018-07636.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"83 FR 16792","comment_url":null,"comments_close_on":"2018-06-01","correction_of":null,"corrections":[],"dates":"We must receive comments on this proposed AD by June 1, 2018.","disposition_notes":null,"docket_ids":["Docket No. FAA-2018-0271","Product Identifier 2017-NM-111-AD"],"dockets":[{"supporting_documents":[{"title":"Regulatory Evaluation","document_id":"FAA-2018-0271-0005"},{"title":"SB 340-30-095","document_id":"FAA-2018-0271-0004"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2018-0271-0002"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2018-04-17","updated_at":"2023-02-28T14:57:31.155-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2018-0271-0001","allow_late_comments":null,"id":"FAA-2018-0271-0001","comment_end_date":"2018-06-02","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":3,"id":"FAA-2018-0271","title":"2017-NM-111-AD\nSaab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes"}],"document_number":"2018-07636","effective_on":null,"end_page":16794,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2018/04/17/2018-07636.xml","html_url":"https://www.federalregister.gov/documents/2018/04/17/2018-07636/airworthiness-directives-saab-ab-saab-aeronautics-formerly-known-as-saab-ab-saab-aerosystems","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2018-07636?publication_date=2018-04-17","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2018-04-17/2018-07636/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":63,"last_updated":"2026-04-04 16:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2018-04-17/pdf/2018-07636.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2018-07636.pdf?1523882718","publication_date":"2018-04-17","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2018/04/17/2018-07636.txt","regulation_id_number_info":{"2120-AA64":{"issue":"202410","html_url":"https://www.federalregister.gov/regulations/2120-AA64/airworthiness-directives","title":"Airworthiness Directives","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=202410&RIN=2120-AA64&operation=OPERATION_EXPORT_XML","priority_category":"Routine and Frequent"}},"regulation_id_numbers":["2120-AA64"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"Regulatory Evaluation","document_id":"FAA-2018-0271-0005"},{"title":"SB 340-30-095","document_id":"FAA-2018-0271-0004"},{"title":"U.S. DOT/FAA - Supplemental AD Documents","document_id":"FAA-2018-0271-0002"}],"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-2018-0271","supporting_documents_count":3,"docket_id":"FAA-2018-0271","document_id":"FAA-2018-0271-0001","regulation_id_number":"2120-AA64","title":"2017-NM-111-AD\nSaab AB, Saab Aeronautics Model 340A (SAAB/SF340A) and SAAB 340B airplanes","checked_regulationsdotgov_at":"2023-02-28T19:57:30Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":16792,"subtype":null,"title":"Airworthiness Directives; Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab Aerosystems) Airplanes","toc_doc":"Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab Aerosystems) Airplanes","toc_subject":"Airworthiness Directives:","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":83}