{"id":"F2006B05587","name":"AD/PA-28/23 Amdt 2 - Rudder Trim Arm Assembly Cracking","slug":"ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46626,"registerId":"commonwealth-F2006B05587-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-28/23 Amdt 2 - Rudder Trim Arm Assembly Cracking","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)  Piper PA-28 Series Aeroplanes\n\n \n\n# AD/PA-28/23\n\nAmdt 2\n\nApplicability: All models.\n\n# Rudder Trim Arm Assembly Cracking 12/85\n\n \n\nRequirement: Inspect the rudder trim arm assembly for cracking at and adjacent to the rudder pedal bar attachment bolt.\n\n \n\nCompliance: Within 100 hours time in service after 29 September 1969 and there- after at each issue of a new Maintenance Release.\n\n \n\nBackground:  This amendment revises the compliance requirement to coincide with varying periodic inspection intervals.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":913},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"Amendment 2 adjusts the compliance timing to align with varying periodic inspection intervals, but does not expand the scope beyond the original safety-critical inspection for rudder trim arm cracking. The core requirement—inspecting for cracks at the pedal bar attachment—remains identical to the original 1985 directive."},"complexity_factors":["Single, unambiguous inspection requirement","No defined terms section or technical cross-references to other legislation","Straightforward applicability (all PA-28 models)","Simple two-part compliance schedule (initial + recurring)","Document length is less than 200 words"],"plain_english_summary":"Owners and operators of Piper PA-28 aircraft must inspect the rudder trim arm assembly for cracks around the bolt that attaches it to the rudder pedal bar. First inspection was within 100 flight hours after 29 Sept 1969; repeat inspections are required each time a new Maintenance Release is issued.\n\nThis mandatory check prevents possible rudder trim failure and loss of control. The latest update aligns inspection timing with typical periodic maintenance cycles rather than a fixed calendar schedule."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking","history":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking/history","analysis":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking/analysis","conflicts":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking/conflicts","importantCases":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking/important-cases","documents":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking/documents"}}