{"id":"F2006B06458","name":"AD/R22/8 - Control Systems Safety Washers - Installation","slug":"ad-r22-8-control-systems-safety-washers-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47926,"registerId":"commonwealth-F2006B06458-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/R22/8 - Control Systems Safety Washers - 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)  Robinson R22 Series Helicopters\n\n \n\nAD/R22/8 Control Systems Safety Washers - Installation 8/81\n\nApplicability: All R22 models with S/Nos. 0002 to 0180. Document:  Robinson SL No. 9.\n\nCompliance: Within 100 hours time in service after 31 August 1981.\n\n \n\nBackground:  To ensure that control system integrity will not be lost in the event of a pushrod end bearing failure, safety washers are installed at appropriate locations.\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":1351},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive retains its original narrow scope: a specific one-time mechanical modification for early-production R22 helicopters to address a identified safety vulnerability in control system bearings. There is no evidence of scope expansion beyond this original safety purpose."},"complexity_factors":["Single-page directive with only one required action","Applicability determined by simple serial number range (0002–0180)","No defined terms or interpretation section","Only one external reference document (Robinson Service Letter No. 9)","Clear, unconditional compliance deadline"],"plain_english_summary":"This is a mandatory aviation safety instruction (called an **Airworthiness Directive**) for owners of specific Robinson R22 helicopters.\n\n**What it requires:**\nIf you own an R22 helicopter with serial numbers 0002 through 0180, you must install special \"safety washers\" at specific points on the control system. These washers act as a mechanical backup to prevent the control system from disconnecting if a pushrod end bearing fails during flight.\n\n**Who must comply:**\nOwners and operators of R22 helicopters with serial numbers between 0002 and 0180 (early production models).\n\n**When:**\nThe modification must be completed within 100 hours of flight time after 31 August 1981.\n\n**Why it matters:**\nWithout these safety washers, a single bearing failure could cause the pilot to lose complete control of the helicopter, potentially resulting in a crash. This rule ensures a fail-safe mechanism protects against catastrophic control system failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-8-control-systems-safety-washers-installation","history":"/api/acts/ad-r22-8-control-systems-safety-washers-installation/history","analysis":"/api/acts/ad-r22-8-control-systems-safety-washers-installation/analysis","conflicts":"/api/acts/ad-r22-8-control-systems-safety-washers-installation/conflicts","importantCases":"/api/acts/ad-r22-8-control-systems-safety-washers-installation/important-cases","documents":"/api/acts/ad-r22-8-control-systems-safety-washers-installation/documents"}}