{"id":"F2009L01317","name":"AD/R22/5 Amdt 2 - Main Gearbox Flexible Coupling Yokes - Inspection - CANCELLED","slug":"ad-r22-5-amdt-2-main-gearbox-flexible-coupling-yokes-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":122303,"registerId":"commonwealth-F2009L01317-current","compilationNumber":null,"startDate":"2026-04-03","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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robinson R22 Series Helicopters","sectionType":"division","heading":"Robinson R22 Series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/R22/5 Amdt 2 | Main Gearbox FlexibleCoupling Yokes - Inspection | 5/2009 |\n| --------------- | ------------------------------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                             |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                                                                                                                                    |\n| Background:  | This unique Australian AD specified periodic dye-penetrant inspection of flexible coupling yokes P/N A192 and A194 in accordance with Robinson SB No. 11. Inspection was required at intervals not exceeding ten hours time in service until new yokes P/N A907 and A908 were installed. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n17 March 2009","sortOrder":0},{"sectionNumber":"AD/R22/5 Amdt 2","sectionType":"part","heading":"AD/R22/5 Amdt 2","content":"## AD/R22/5 Amdt 2","sortOrder":1},{"sectionNumber":"Main Gearbox FlexibleCoupling Yokes - In","sectionType":"part","heading":"Main Gearbox FlexibleCoupling Yokes - Inspection","content":"## Main Gearbox Flexible  \nCoupling Yokes - Inspection","sortOrder":2},{"sectionNumber":"5/2009","sectionType":"part","heading":"5/2009","content":"## 5/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2004},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs the exact function described by its title and header—it cancels the previous Airworthiness Directive. The scope remains strictly limited to removing the inspection requirement for these specific helicopter parts."},"complexity_factors":["Single operative provision (the cancellation itself)","Zero defined terms in the operative section","No conditional logic or exceptions","No procedural steps required for compliance","Background information is historical context only, not binding requirements"],"plain_english_summary":"This document cancels an earlier aviation safety rule (an Airworthiness Directive) that required regular safety inspections on specific helicopter parts.\n\n**What the old rule required:**\nOwners of Robinson R22 helicopters had to perform dye-penetrant inspections (a specialised crack-detection test) every 10 flight hours on flexible coupling yokes (mechanical parts in the main gearbox) with part numbers A192 and A194. This testing had to continue until those parts were replaced with updated versions (P/N A907 and A908).\n\n**What this document does:**\nIt officially cancels that inspection requirement effective 7 May 2009. The rule is no longer needed because the safety issue has been resolved—presumably the old parts have been phased out of service.\n\n**Who it affects:**\nHelicopter owners and maintenance engineers who were previously required to comply with the 10-hour inspection interval for these specific parts."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-5-amdt-2-main-gearbox-flexible-coupling-yokes-inspection-cancelled","history":"/api/acts/ad-r22-5-amdt-2-main-gearbox-flexible-coupling-yokes-inspection-cancelled/history","analysis":"/api/acts/ad-r22-5-amdt-2-main-gearbox-flexible-coupling-yokes-inspection-cancelled/analysis","conflicts":"/api/acts/ad-r22-5-amdt-2-main-gearbox-flexible-coupling-yokes-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-r22-5-amdt-2-main-gearbox-flexible-coupling-yokes-inspection-cancelled/important-cases","documents":"/api/acts/ad-r22-5-amdt-2-main-gearbox-flexible-coupling-yokes-inspection-cancelled/documents"}}