{"id":"F2006B05601","name":"AD/PA-28/43 - Rudder Bar Assembly - Inspection and Modification","slug":"ad-pa-28-43-rudder-bar-assembly-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135211,"registerId":"commonwealth-F2006B05601-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-28/43 - Rudder Bar Assembly - Inspection and Modification","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\nAD/PA-28/43 Rudder Bar Assembly - Inspection and Modification 12/73\n\nApplicability: All model PA-28 and PA-28R. Document:  Piper SL No. 671.\n\nCompliance: Inspect within 100 hours time in service after 31 December 1973 and thereafter at intervals not exceeding 100 hours time in service until modified. Modify in accordance with SL No. 671 not later than first major inspection after 31 December 1973.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":3234},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive remains focused on its original technical safety purpose: addressing a specific mechanical defect in the rudder bar assembly of Piper PA-28 aircraft. It has not expanded to cover other aircraft systems or broader operational requirements."},"complexity_factors":["Single operative paragraph containing two sequential requirements","Simple time-based compliance triggers (100-hour intervals, major inspection milestone)","Only one external technical reference (Piper Service Letter No. 671)","No definitions section, exceptions, or nested conditional clauses","Narrow applicability limited to specific aircraft models"],"plain_english_summary":"**What this does:** This safety directive (called an Airworthiness Directive) requires owners of Piper PA-28 aircraft to check and fix the foot pedals that control the rudder (the \"rudder bar assembly\").\n\n**Who it affects:** Owners and operators of all Piper PA-28 and PA-28R model aeroplanes.\n\n**What you must do:**\n- **Inspect:** Check the rudder bar assembly within 100 hours of flight time after the effective date, and then re-check it every 100 hours of flying time until the modification is completed.\n- **Modify:** Update the rudder bar assembly according to the manufacturer's instructions (Piper Service Letter No. 671) no later than the aircraft's first major inspection after the effective date.\n\n**Why it matters:** This prevents potential failure of the rudder foot controls, which are essential for steering the aircraft safely on the ground and in the air."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-43-rudder-bar-assembly-inspection-and-modification","history":"/api/acts/ad-pa-28-43-rudder-bar-assembly-inspection-and-modification/history","analysis":"/api/acts/ad-pa-28-43-rudder-bar-assembly-inspection-and-modification/analysis","conflicts":"/api/acts/ad-pa-28-43-rudder-bar-assembly-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-pa-28-43-rudder-bar-assembly-inspection-and-modification/important-cases","documents":"/api/acts/ad-pa-28-43-rudder-bar-assembly-inspection-and-modification/documents"}}