{"abstract":"This document proposes to supersede Airworthiness Directive (AD) 80-10-01, which is applied to certain Cessna Aircraft Company 180 and 185 series airplanes that are equipped with Airglas Engineering Company, Inc., (AECI) Model LW3600-180 single position or Model LW3600- 180A two position fixed penetration wheel ski installations. AD 80-10- 01 currently requires: modifying the ski bungee assemblies, safety cables, and check cables; limiting the maximum airspeed to 160 knots with skis installed; and installing an airspeed limitation placard. The proposed AD would retain the actions required in AD 80-10-01, and would require marking the maximum airspeed limits on the airspeed indicator; placing a supplemental airplane flight manual (AFM) and AFM supplement in the cockpit; and adding the Cessna Model 180K airplane to the applicability. Reports that certain airspeeds cause the skis to rotate into a nose-down position during flight prompted the AD action. The actions specified by the proposed AD are intended to prevent one or both wheel skis from rotating into a nose-down position during flight, which could result in loss of control of the airplane and/or possible airplane damage during flight or landing operations.","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/1998/06/26/98-16591.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"39","title":14}],"citation":"63 FR 34833","comment_url":null,"comments_close_on":"1998-08-24","correction_of":null,"corrections":[],"dates":"Comments must be received on or before August 24, 1998.","disposition_notes":null,"docket_ids":["Docket No. 97-CE-138-AD"],"dockets":[],"document_number":"98-16591","effective_on":null,"end_page":34836,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":null,"html_url":"https://www.federalregister.gov/documents/1998/06/26/98-16591/airworthiness-directives-cessna-aircraft-company-180-and-185-series-airplanes","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/98-16591?publication_date=1998-06-26","mods_url":"https://www.govinfo.gov/metadata/granule/FR-1998-06-26/98-16591/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":22,"last_updated":"2026-08-26 12:15:06 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-1998-06-26/pdf/98-16591.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"1998-06-26","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/1998/06/26/98-16591.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":"2011-09-21T06:22:52Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":34833,"subtype":null,"title":"Airworthiness Directives; Cessna Aircraft Company 180 and 185 Series Airplanes.","toc_doc":null,"toc_subject":null,"topics":[],"type":"Proposed Rule","volume":63}