{"id":"F2006L01664","name":"AD/R22/36 Amdt 1 - Main Rotor Blades - 2 - CANCELLED","slug":"ad-r22-36-amdt-1-main-rotor-blades-2-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":59387,"registerId":"commonwealth-F2006L01664-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robinson R22 Series Helicopters","sectionType":"division","heading":"Robinson R22 Series Helicopters","content":"### Robinson R22 Series Helicopters\n\n| AD/R22/36 Amdt 1 | Main Rotor Blades - 2 | 7/2006 |\n| ---------------- | --------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                            |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 6 July 2006.                                                                                                                                                                                                                                                                                  |\n| Background:  | This AD is no longer required because all Robinson R22 helicopters now have new design P/N A016-4 blades fitted which are not susceptible to corrosion pitting due to their use of a stainless steel skin. The old design P/N A016-2 blades were required to be removed by 1 April 2006 in accordance with AD/R22/53. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n23 May 2006","sortOrder":0},{"sectionNumber":"AD/R22/36 Amdt 1","sectionType":"part","heading":"AD/R22/36 Amdt 1","content":"## AD/R22/36 Amdt 1","sortOrder":1},{"sectionNumber":"Main Rotor Blades - 2","sectionType":"part","heading":"Main Rotor Blades - 2","content":"## Main Rotor Blades - 2","sortOrder":2},{"sectionNumber":"7/2006","sectionType":"part","heading":"7/2006","content":"## 7/2006","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1462},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the application of a previous regulatory requirement rather than expanding or modifying the scope of oversight. The regulatory scope has narrowed by removing a requirement, not broadened."},"complexity_factors":["Single operative provision - cancellation only","No conditional logic or exceptions","No defined terms requiring interpretation","Minimal cross-referencing (only mentions related directive AD/R22/53 for context)"],"plain_english_summary":"**What this is:** A cancellation of a safety rule (Airworthiness Directive) for Robinson R22 helicopters.\n\n**What it originally did:** The previous rule required maintenance or inspections related to main rotor blades on these helicopters because older blade designs (part number A016-2) were prone to corrosion pitting (small rust holes that weaken the metal).\n\n**Why it's cancelled:** All affected helicopters have now been upgraded to new, corrosion-resistant blades made with stainless steel skin (part number A016-4). The old blades were required to be removed by April 2006 under a separate safety rule (AD/R22/53), so this specific directive is no longer needed.\n\n**What happens now:** Owners and operators of Robinson R22 helicopters no longer need to comply with the requirements of AD/R22/36 Amdt 1."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-36-amdt-1-main-rotor-blades-2-cancelled","history":"/api/acts/ad-r22-36-amdt-1-main-rotor-blades-2-cancelled/history","analysis":"/api/acts/ad-r22-36-amdt-1-main-rotor-blades-2-cancelled/analysis","conflicts":"/api/acts/ad-r22-36-amdt-1-main-rotor-blades-2-cancelled/conflicts","importantCases":"/api/acts/ad-r22-36-amdt-1-main-rotor-blades-2-cancelled/important-cases","documents":"/api/acts/ad-r22-36-amdt-1-main-rotor-blades-2-cancelled/documents"}}