{"id":"F2006B09527","name":"AD/EMERAUDE/1 - Anti Spin Strakes - Installation","slug":"ad-emeraude-1-anti-spin-strakes-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54130,"registerId":"commonwealth-F2006B09527-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/EMERAUDE/1 - Anti Spin Strakes - Installation","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)  Piel Emeraude Series Aeroplanes\n\n \n\nAD/EMERAUDE/1 Anti Spin Strakes - Installation NK\n\nApplicability: All models.\n\n \n\nRequirement: Fit anti-spin strakes on an approved design. Compliance: 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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1271},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: requiring a specific airframe modification for a specific aircraft type. There is no evidence of expansion beyond the original safety intent or incorporation of unrelated operational requirements."},"complexity_factors":["Single operative clause with no subsections or paragraphs","No defined terms requiring specialised interpretation","Immediate universal compliance with no conditional triggers, exemptions or phased rollout","No cross-references to other legislative provisions within the operative text"],"plain_english_summary":"This is a mandatory aviation safety order issued by the Civil Aviation Safety Authority (CASA) for all **Piel Emeraude series aircraft**. It requires owners and operators to immediately install **anti-spin strakes** (small aerodynamic fins attached to the airframe that disrupt airflow and help prevent the aircraft from entering a dangerous spinning stall) on all models of this aircraft type.\n\n**Key points:**\n- **Who it affects:** Anyone who owns or operates a Piel Emeraude series aeroplane in Australia\n- **What must be done:** Fit anti-spin strakes designed to an approved standard\n- **When:** Immediately ('forthwith' means without delay)\n\n**Why it matters:** Spinning stalls are a significant cause of fatal accidents in light aircraft. This directive addresses a known flight characteristic issue with this aircraft design, mandating a physical modification to improve safety and prevent loss of control."}},"importantCases":[],"_links":{"self":"/api/acts/ad-emeraude-1-anti-spin-strakes-installation","history":"/api/acts/ad-emeraude-1-anti-spin-strakes-installation/history","analysis":"/api/acts/ad-emeraude-1-anti-spin-strakes-installation/analysis","conflicts":"/api/acts/ad-emeraude-1-anti-spin-strakes-installation/conflicts","importantCases":"/api/acts/ad-emeraude-1-anti-spin-strakes-installation/important-cases","documents":"/api/acts/ad-emeraude-1-anti-spin-strakes-installation/documents"}}