{"id":"F2006B06677","name":"AD/RRP-C/2 - Connecting Rod - Modification","slug":"ad-rrp-c-2-connecting-rod-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48672,"registerId":"commonwealth-F2006B06677-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RRP-C/2 - Connecting Rod - 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 - 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Rolls Royce (Blackburn) Engines - Cirrus Series\n\n \n\nAD/RRP-C/2 Connecting Rod - Modification NK\n\nApplicability: Cirrus Major 1, 11 and 11A. Document:  1. Cirrus Mod. 2083; or\n\n2. ANO 106.1.4.1.5.4.; or\n\n \n\n3. AD/BNC/2.\n\n \n\nCompliance: Before installation in an aircraft.\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":966},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains tightly focused on its original purpose: mandating a specific connecting rod modification for three specific engine models. It has not expanded beyond this narrow technical scope."},"complexity_factors":["Extremely short text (under 150 words) with minimal conditional logic","Heavy reliance on three external technical documents not reproduced in the directive","Technical aviation terminology requires specialized mechanical knowledge to implement","No interpretation section or defined terms within the instrument itself"],"plain_english_summary":"**What this does:**\nThis is a mandatory safety directive for aircraft mechanics and operators. It requires a specific mechanical modification to the **connecting rods** (the parts that connect pistons to the crankshaft) in certain **Rolls Royce (Blackburn) Cirrus engines** (specifically the Major I, II, and IIA models).\n\n**Who it affects:**\n- Aircraft maintenance engineers and mechanics who work on these specific engine models\n- Aircraft owners/operators with planes using Cirrus Major engines\n- Aviation safety inspectors\n\n**What you must do:**\nBefore installing one of these engines into any aircraft, you must complete the modification described in one of these three technical documents:\n1. Cirrus Modification 2083, OR\n2. Air Navigation Order 106.1.4.1.5.4, OR  \n3. Airworthiness Directive AD/BNC/2\n\n**Why it matters:**\nThis prevents potential engine failure caused by faulty connecting rods. The directive ensures that only modified, safer components are used in flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rrp-c-2-connecting-rod-modification","history":"/api/acts/ad-rrp-c-2-connecting-rod-modification/history","analysis":"/api/acts/ad-rrp-c-2-connecting-rod-modification/analysis","conflicts":"/api/acts/ad-rrp-c-2-connecting-rod-modification/conflicts","importantCases":"/api/acts/ad-rrp-c-2-connecting-rod-modification/important-cases","documents":"/api/acts/ad-rrp-c-2-connecting-rod-modification/documents"}}