{"abstract":"This amendment supersedes Airworthiness Directive (AD) 98-04- 27, which currently requires incorporating certain icing information into the FAA-approved airplane flight manual (AFM) of The New Piper Aircraft, Inc. (Piper) PA-23, PA-30, PA-31, PA-34, PA-39, PA-40, and PA-42 series airplanes. The Federal Aviation Administration (FAA) inadvertently omitted Piper Models PA-31P, PA-31T, PA-31T1, PA-31T2, and PA-31P-350 airplanes from the Applicability section of AD 98-04-27. This AD retains the requirement of incorporating the icing information into the AFM for all airplanes affected by AD 98-04-27, and adds Piper Models PA-31P, PA-31T, PA-31T1, PA-31T2, and PA-31P-350 airplanes to the Applicability section of the AD. The actions specified by this AD are intended to minimize the potential hazards associated with operating these airplanes in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.","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/1999/06/28/99-16278.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"citation":"64 FR 34530","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective August 17, 1999.","disposition_notes":null,"docket_ids":["Docket No. 98-CE-77-AD","Amendment 39-11209","AD 99-14-01"],"dockets":[],"document_number":"99-16278","effective_on":"1999-08-17","end_page":34532,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1999/06/28/99-16278/airworthiness-directives-the-new-piper-aircraft-inc-pa-23-pa--30-pa-31-pa-34-pa-39-pa-40-and-pa-42","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/99-16278?publication_date=1999-06-28","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1999-06-28/99-16278/mods.xml","not_received_for_publication":null,"page_length":3,"page_views":{"count":92,"last_updated":"2026-08-26 08:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1999-06-28/pdf/99-16278.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1999-06-28","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1999/06/28/99-16278.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":"2011-09-21T06:08:49Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":34530,"subtype":null,"title":"Airworthiness Directives; The New Piper Aircraft, Inc. PA-23, PA- 30, PA-31, PA-34, PA-39, PA-40, and PA-42 Series Airplanes","toc_doc":null,"toc_subject":null,"topics":[],"type":"Uncategorized Document","volume":64}