{"abstract":"This document proposes to supersede Airworthiness Directive (AD) 93-10-06, which currently applies to all models of The New Piper Aircraft, Inc. (Piper) airplanes equipped with wing lift struts. AD 93- 10-06 requires repetitively inspecting the wing lift struts and wing lift strut forks for cracks or corrosion, and replacing any strut or fork found cracked or corroded. The proposed AD results from reports, questions, and information received from the field on AD 93-10-06, which show a need to clarify and add information that will more fully achieve the safety intent of that AD. This action clarifies certain requirements of AD 93-10-06, eliminates the lift strut fork repetitive inspection requirement on the Piper PA-25 series airplanes, incorporates models inadvertently omitted from AD 93-10-06, and requires fabricating and installing a placard on the lift strut. The actions specified by the proposed AD are intended to prevent in-flight separation of the wing from the airplane caused by corroded wing lift struts or cracked wing lift forks, which could result in loss of control of the airplane.","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/1998/04/23/98-10749.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"citation":"63 FR 20143","comment_url":null,"comments_close_on":"1998-07-01","correction_of":null,"corrections":[],"dates":"Comments must be received on or before July 1, 1998.","disposition_notes":null,"docket_ids":["Docket No. 96-CE-72-AD"],"dockets":[],"document_number":"98-10749","effective_on":null,"end_page":20148,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1998/04/23/98-10749/airworthiness-directives-all-models-of-the-new-piper-aircraft-inc-formerly-piper-aircraft","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/98-10749?publication_date=1998-04-23","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1998-04-23/98-10749/mods.xml","not_received_for_publication":null,"page_length":6,"page_views":{"count":73,"last_updated":"2026-10-23 22:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1998-04-23/pdf/98-10749.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1998-04-23","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1998/04/23/98-10749.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":"2011-09-21T03:47:35Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":20143,"subtype":null,"title":"Airworthiness Directives; All Models of The New Piper Aircraft, Inc. (Formerly Piper Aircraft Corporation) Airplanes Equipped With Wing Lift Struts","toc_doc":null,"toc_subject":null,"topics":[],"type":"Proposed Rule","volume":63}