{"id":"F2006L01057","name":"AD/R22/31 Amdt 11 - Main Rotor Blades - CANCELLED","slug":"ad-r22-31-amdt-11-main-rotor-blades-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":58358,"registerId":"commonwealth-F2006L01057-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robinson R22 Series Helicopters","sectionType":"division","heading":"Robinson R22 Series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/R22/31 Amdt 11 | Main Rotor Blades | 5/2006 |\n| ----------------- | ----------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                           |\n| ------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 11 May 2006.                                                                                                                                                                                                                                 |\n| Background:  | AD/R22/53, effective 16 February 2006, required that all blades that were the subject of AD/R22/31 Amdt 11 were to be removed from service by 1 April 2006. AD/R22/31 is no longer required as there should no longer be any P/N A016-2 blades remaining in service. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n31 March 2006","sortOrder":0},{"sectionNumber":"AD/R22/31 Amdt 11","sectionType":"part","heading":"AD/R22/31 Amdt 11","content":"## AD/R22/31 Amdt 11","sortOrder":1},{"sectionNumber":"Main Rotor Blades","sectionType":"part","heading":"Main Rotor Blades","content":"## Main Rotor Blades","sortOrder":2},{"sectionNumber":"5/2006","sectionType":"part","heading":"5/2006","content":"## 5/2006","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2967},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument eliminates the regulatory requirements of the previous Airworthiness Directive rather than expanding them. It represents a contraction of scope to zero, not growth beyond original purpose."},"complexity_factors":["Single operative provision cancelling the instrument","No defined terms or interpretation section","Minimal cross-referencing to only two related directives","No conditional logic, exceptions, or procedural steps"],"plain_english_summary":"This document **cancels an aviation safety rule** about main rotor blades for Robinson R22 helicopters.\n\n**What it does:**\n- Revokes Airworthiness Directive (AD) R22/31 Amendment 11, effective 11 May 2006\n- Removes maintenance and inspection requirements that previously applied to specific helicopter rotor blades (part number A016-2)\n\n**Why it matters:**\nThe blades covered by the old rule were required to be removed from service by 1 April 2006 under a different directive (AD/R22/53). Since these parts should no longer be on any helicopters, the original safety rule is redundant. This cancellation cleans up the regulations by formally removing requirements that can no longer be complied with (because the parts are gone).\n\n**Who it affects:**\nHelicopter operators and maintenance providers. However, this change has no practical impact if all affected blades were already removed from service as required by the February 2006 directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-31-amdt-11-main-rotor-blades-cancelled","history":"/api/acts/ad-r22-31-amdt-11-main-rotor-blades-cancelled/history","analysis":"/api/acts/ad-r22-31-amdt-11-main-rotor-blades-cancelled/analysis","conflicts":"/api/acts/ad-r22-31-amdt-11-main-rotor-blades-cancelled/conflicts","importantCases":"/api/acts/ad-r22-31-amdt-11-main-rotor-blades-cancelled/important-cases","documents":"/api/acts/ad-r22-31-amdt-11-main-rotor-blades-cancelled/documents"}}