{"id":"F2007L00375","name":"AD/R22/16 Amdt 4 - Lower Actuator Bearing - CANCELLED","slug":"ad-r22-16-amdt-4-lower-actuator-bearing-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":63398,"registerId":"commonwealth-F2007L00375-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/R22/16 Amdt 4 - Lower Actuator Bearing - CANCELLED","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 20.2\ntitle: AIRCRAFT\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\n \n\nAIRWORTHINESS DIRECTIVE\n\nOn the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/R22/16 Amdt 4.\n\n### Robinson R22 Series Helicopters\n\n| AD/R22/16 Amdt 4 | Lower Actuator Bearing | 3/2007 |\n| --- | --- | --- |\n\n\n \n\n| Requirement: | CANCELLED. |\n| --- | --- |\n|  | This AD is cancelled on 15 March 2007. |\n| Background: | The requirements of this AD are now found in Robinson Helicopter data and CASA regulations. |\n\n\n![](image.001.png)\n\nJames Coyne  Delegate of the Civil Aviation Safety Authority\n\n2 February 2007\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1757},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs exactly one function: revoking the previous Airworthiness Directive. It does not expand or alter the regulatory scope; rather, it terminates the requirements previously imposed by AD/R22/16 Amdt 4, with CASA confirming the safety standards are now maintained through other means."},"complexity_factors":["Single operative provision (revocation)","No defined terms","No conditional logic or exceptions","No cross-references to other legislation"],"plain_english_summary":"This document **cancels a previous safety rule** for certain helicopters.\n\n**What it does:**\n* **Revokes Airworthiness Directive AD/R22/16 Amdt 4** – a previous rule that required specific maintenance or inspection of the lower actuator bearing in Robinson R22 series helicopters.\n* **Removes the obligation** to comply with that specific directive as of 15 March 2007.\n\n**Who it affects:**\nOwners and operators of Robinson R22 series helicopters who were previously required to follow the bearing maintenance rules in the cancelled directive.\n\n**Why it matters:**\nThe safety standards previously covered by this specific directive are now addressed through Robinson Helicopter's own technical data and general CASA (Civil Aviation Safety Authority) regulations. This cancellation tidies up the rulebook by removing a redundant requirement rather than watering down safety standards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-16-amdt-4-lower-actuator-bearing-cancelled","history":"/api/acts/ad-r22-16-amdt-4-lower-actuator-bearing-cancelled/history","analysis":"/api/acts/ad-r22-16-amdt-4-lower-actuator-bearing-cancelled/analysis","conflicts":"/api/acts/ad-r22-16-amdt-4-lower-actuator-bearing-cancelled/conflicts","importantCases":"/api/acts/ad-r22-16-amdt-4-lower-actuator-bearing-cancelled/important-cases","documents":"/api/acts/ad-r22-16-amdt-4-lower-actuator-bearing-cancelled/documents"}}