{"id":"F2006B06417","name":"AD/R22/10 - Tail Rotor Drive Shaft Damper Clips - Replacement","slug":"ad-r22-10-tail-rotor-drive-shaft-damper-clips-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47777,"registerId":"commonwealth-F2006B06417-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/R22/10 - Tail Rotor Drive Shaft Damper Clips - Replacement","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)  Robinson R22 Series Helicopters\n\n \n\nAD/R22/10 Tail Rotor Drive Shaft Damper Clips - Replacement 12/81\n\nApplicability: All model R22 series with S/Nos. 0002 to 0220. Document:  Robinson Service Bulletin SB 14.\n\nCompliance: Within 25 hours time in service after 5 November 1981.\n\n \n\nBackground: The manufacturer advises of two known failures to the tail rotor drive shaft damper clip. Tail rotor drive shaft failure may occur as a result of clip failure and loss of support for the centre of the shaft.\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":2200},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument remains tightly scoped to its original purpose: mandating the replacement of a specific defective component on a specific aircraft model range. There is no evidence of scope creep or expansion beyond the immediate safety issue described."},"complexity_factors":["Single operative requirement (replace specific part)","No interpretation section or defined terms","Minimal cross-referencing (only one external document: Service Bulletin SB 14)","Short length (less than one page)","Limited applicability (specific serial number range only)"],"plain_english_summary":"This Airworthiness Directive (a mandatory safety order issued by the aviation regulator) requires owners and operators of certain Robinson R22 helicopters to replace faulty tail rotor drive shaft damper clips to prevent catastrophic mechanical failure.\n\n**Who is affected**\nOwners and operators of Robinson R22 series helicopters with serial numbers 0002 through 0220.\n\n**What you must do**\nReplace the tail rotor drive shaft damper clips in accordance with Robinson Service Bulletin SB 14. The work must be completed within 25 hours of flight time after 5 November 1981.\n\n**Why this matters**\nThe manufacturer identified two failures of these damper clips. If a clip fails, the centre of the tail rotor drive shaft loses support, which can cause the shaft itself to fail. This could result in loss of tail rotor control and potentially cause the helicopter to crash."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-10-tail-rotor-drive-shaft-damper-clips-replacement","history":"/api/acts/ad-r22-10-tail-rotor-drive-shaft-damper-clips-replacement/history","analysis":"/api/acts/ad-r22-10-tail-rotor-drive-shaft-damper-clips-replacement/analysis","conflicts":"/api/acts/ad-r22-10-tail-rotor-drive-shaft-damper-clips-replacement/conflicts","importantCases":"/api/acts/ad-r22-10-tail-rotor-drive-shaft-damper-clips-replacement/important-cases","documents":"/api/acts/ad-r22-10-tail-rotor-drive-shaft-damper-clips-replacement/documents"}}