{"id":"F2006B02609","name":"AD/B-2/8 - Tail Cone Reinforcement","slug":"ad-b-2-8-tail-cone-reinforcement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41925,"registerId":"commonwealth-F2006B02609-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B-2/8 - Tail Cone Reinforcement","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)  Brantly B-2 Series Helicopters\n\n \n\nAD/B-2/8 Tail Cone Reinforcement 12/60\n\nApplicability: Model B-2 with S/Nos. 4, 7, 8, 9, 10, 11, 14, 15 and 17. Document:  Brantly SL 3A.\n\nCompliance: Forthwith.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1559},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains a narrow, technical safety scope targeting a specific structural defect in identified aircraft. No evidence of scope expansion beyond the original remedial purpose."},"complexity_factors":["Single, unambiguous compliance action (reinforce tail cone)","Discrete, enumerated list of only 9 affected aircraft by serial number","No exceptions, conditions, or alternative compliance methods","Only one external reference (manufacturer Service Letter 3A)","Extremely brief text with no defined terms section"],"plain_english_summary":"This is a mandatory safety order (called an **Airworthiness Directive**) issued by the Civil Aviation Safety Authority that requires immediate action on specific helicopters.\n\n**What it does:**\n- Orders owners and operators of Brantly B-2 helicopters with serial numbers 4, 7, 8, 9, 10, 11, 14, 15, and 17 to reinforce the tail cone (the rear structural section of the aircraft)\n- References manufacturer Service Letter 3A for technical instructions\n- Requires compliance \"forthwith\" (meaning immediately, without delay)\n\n**Who it affects:**\n- Owners and operators of the nine specific Brantly B-2 helicopters listed by serial number\n- Licensed aircraft maintenance engineers servicing these helicopters\n\n**Why it matters:**\n- Addresses a structural weakness in the tail cone that could compromise airworthiness\n- Failure to comply could result in structural failure and loss of aircraft control"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b-2-8-tail-cone-reinforcement","history":"/api/acts/ad-b-2-8-tail-cone-reinforcement/history","analysis":"/api/acts/ad-b-2-8-tail-cone-reinforcement/analysis","conflicts":"/api/acts/ad-b-2-8-tail-cone-reinforcement/conflicts","importantCases":"/api/acts/ad-b-2-8-tail-cone-reinforcement/important-cases","documents":"/api/acts/ad-b-2-8-tail-cone-reinforcement/documents"}}