{"abstract":"The FAA proposes to adopt a new airworthiness directive (AD) for certain MHI RJ Aviation ULC Model CL-600-2D24 (Regional Jet Series 900) airplanes. This proposed AD was prompted by a report of a manufacturing error that can create dents on the lower wing plank, close to the flap arm locations at certain wing stations; as a result, cracks could develop and weaken the structural integrity of the wings before being detected by any existing required inspections. This proposed AD would require an inspection for damage (including dents, cracks, discoloration, gouges, scratches, or other surface damage) of the lower wing plank in the flap arm areas at certain wing stations, and repair if necessary. The FAA is 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/2022/06/02/2022-11803.html","cfr_references":[{"chapter":null,"citation_url":null,"part":39,"title":14}],"citation":"87 FR 33454","comment_url":null,"comments_close_on":"2022-07-18","correction_of":null,"corrections":[],"dates":"The FAA must receive comments on this proposed AD by July 18, 2022.","disposition_notes":null,"docket_ids":["Docket No. FAA-2022-0592","Project Identifier MCAI-2021-01023-T"],"dockets":[{"supporting_documents":[{"title":"U.S. DOT/FAA - Supplemental AD Document (SB 670BA-57-029)","document_id":"FAA-2022-0592-0004"},{"title":"Supporting AD Document","document_id":"FAA-2022-0592-0002"}],"agency_name":"FAA","documents":[{"comment_count":0,"comment_start_date":"2022-06-02","updated_at":"2023-02-28T12:12:45.699-05:00","comment_url":"https://www.regulations.gov/commenton/FAA-2022-0592-0001","allow_late_comments":null,"id":"FAA-2022-0592-0001","comment_end_date":"2022-07-19","regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":2,"id":"FAA-2022-0592","title":"MCAI-2021-01023-T MHI RJ Aviation ULC Model CL-600-2D24 (Regional Jet Series 900) airplanes; dents on the lower wing plank"}],"document_number":"2022-11803","effective_on":null,"end_page":33457,"executive_order_notes":null,"executive_order_number":null,"explanation":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2022/06/02/2022-11803.xml","html_url":"https://www.federalregister.gov/documents/2022/06/02/2022-11803/airworthiness-directives-mhi-rj-aviation-ulc-type-certificate-previously-held-by-bombardier-inc","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2022-11803?publication_date=2022-06-02","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2022-06-02/2022-11803/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":103,"last_updated":"2026-04-04 20:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2022-06-02/pdf/2022-11803.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2022-11803.pdf?1654087518","publication_date":"2022-06-02","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2022/06/02/2022-11803.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":"U.S. DOT/FAA - Supplemental AD Document (SB 670BA-57-029)","document_id":"FAA-2022-0592-0004"},{"title":"Supporting AD Document","document_id":"FAA-2022-0592-0002"}],"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-2022-0592","supporting_documents_count":2,"docket_id":"FAA-2022-0592","document_id":"FAA-2022-0592-0001","regulation_id_number":"2120-AA64","title":"MCAI-2021-01023-T MHI RJ Aviation ULC Model CL-600-2D24 (Regional Jet Series 900) airplanes; dents on the lower wing plank","checked_regulationsdotgov_at":"2023-02-28T17:12:44Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":33454,"subtype":null,"title":"Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes","toc_doc":"MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes","toc_subject":"Airworthiness Directives:\n","topics":["Air transportation","Aircraft","Aviation safety","Incorporation by reference","Safety"],"type":"Proposed Rule","volume":87}