{"id":"F2006B06641","name":"AD/ROBIN/9 - Rudder Bar Assembly Welds","slug":"ad-robin-9-rudder-bar-assembly-welds","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48550,"registerId":"commonwealth-F2006B06641-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ROBIN/9 - Rudder Bar Assembly Welds","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Robin Aviation Series Aeroplanes\n\n \n\nAD/ROBIN/9 Rudder Bar Assembly Welds 4/86\n\nApplicability: All Models.\n\n \n\nRequirement: Inspect by dye penetrant, the left and right rudder bar assembly welds for cracking, (ref. Robin Spare Parts Manual, plate 7, page 18, items 1 and 2). At the junctions of the vertical tubes to the horizontal tubes.\n\n \n\nCompliance: Within 25 hours time in service after 26 February 1986 and thereafter at intervals not exceeding 100 hours time in service or at the next scheduled inspection for maintenance release issue, whichever is the later, until reinforced to a scheme approved by the Secretary.\n\n \n\nBackground:  The Department has received a report of a rudder bar failure at the vertical tube to horizontal tube weld.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1646},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive remains narrowly focused on addressing the specific safety defect in rudder bar weld assemblies as originally identified, without expansion to unrelated systems or aircraft types."},"complexity_factors":["Technical aviation terminology (e.g., 'dye penetrant', 'time in service')","Specific reference to manufacturer documentation (Robin Spare Parts Manual, plate 7, page 18)","Multiple conditional compliance deadlines ('whichever is the later')","Requirement for approved reinforcement scheme before inspections can cease"],"plain_english_summary":"This AD requires owners/operators of Robin Aviation Series aeroplanes to urgently inspect left and right rudder bar assemblies for weld cracks where vertical and horizontal tubes join, using dye‑penetrant inspection. Inspections must begin within 25 flight hours from 26 Feb 1986 and repeat every 100 hours (or at the next maintenance check) until the rudder bar is permanently reinforced with an approved scheme."}},"importantCases":[],"_links":{"self":"/api/acts/ad-robin-9-rudder-bar-assembly-welds","history":"/api/acts/ad-robin-9-rudder-bar-assembly-welds/history","analysis":"/api/acts/ad-robin-9-rudder-bar-assembly-welds/analysis","conflicts":"/api/acts/ad-robin-9-rudder-bar-assembly-welds/conflicts","importantCases":"/api/acts/ad-robin-9-rudder-bar-assembly-welds/important-cases","documents":"/api/acts/ad-robin-9-rudder-bar-assembly-welds/documents"}}