{"id":"F2006B04799","name":"AD/BO 105/10 - Swashplate","slug":"ad-bo-105-10-swashplate","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44587,"registerId":"commonwealth-F2006B04799-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BO 105/10 - Swashplate","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)  Eurocopter BO 105 Series Helicopters\n\n \n\nAD/BO 105/10 Swashplate  9/87 DM\n\nApplicability: All Model BO 105 helicopters fitted with swashplate P/N 105-41904 with bearing ring P/N 105-41936.01, 117-41937.01 or 117-41936.01.\n\n \n\nRequirement: Action in accordance with MBB Alert Service Bulletin ASB-BO 105-40-101.\n\n \n\nCompliance: Within 25 hours time in service after 24 June 1987 or before 31 July 1987 whichever occurs first.\n\n \n\nBackground:  Interference with the swashplate drive link assembly may occur with certain control inputs.\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":1886},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a precisely targeted airworthiness instrument addressing a single identified mechanical defect in a specific helicopter model. The scope remains strictly confined to the original safety-critical engineering issue without expansion into broader operational or administrative matters."},"complexity_factors":["Single page document with minimal operative text","Only one substantive requirement (comply with referenced external service bulletin)","Specific applicability limited to exact part number combinations","Simple temporal compliance condition using 'whichever occurs first' logic","No defined terms section, interpretive provisions, or cross-references to other legislation"],"plain_english_summary":"**What this does:** This is an urgent safety order requiring operators of specific Eurocopter BO 105 helicopters to inspect and repair a mechanical defect in the **swashplate** — the component that translates pilot control stick movements into rotor blade adjustments.\n\n**Who it affects:** Owners and operators of Eurocopter BO 105 helicopters fitted with swashplate part number 105-41904 and specific bearing ring part numbers (105-41936.01, 117-41937.01, or 117-41936.01).\n\n**What must happen:** Operators must follow the exact technical instructions in **MBB Alert Service Bulletin ASB-BO 105-40-101** to fix a dangerous interference problem between the swashplate and its drive link assembly that can occur during certain flight maneuvers.\n\n**When:** This required immediate action — the repair had to be completed within 25 flight hours after 24 June 1987, or before 31 July 1987 (whichever came first). This tight deadline reflects a serious safety threat that demanded urgent compliance back in 1987."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bo-105-10-swashplate","history":"/api/acts/ad-bo-105-10-swashplate/history","analysis":"/api/acts/ad-bo-105-10-swashplate/analysis","conflicts":"/api/acts/ad-bo-105-10-swashplate/conflicts","importantCases":"/api/acts/ad-bo-105-10-swashplate/important-cases","documents":"/api/acts/ad-bo-105-10-swashplate/documents"}}