{"id":"F2009L01513","name":"AD/R22/17 - Clutch Lock Switch - Modification - CANCELLED","slug":"ad-r22-17-clutch-lock-switch-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78143,"registerId":"commonwealth-F2009L01513-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robinson R22 Series Helicopters","sectionType":"division","heading":"Robinson R22 Series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/R22/17 | Clutch Lock Switch - Modification | 5/2009 |\n| --------- | --------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                        |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                                               |\n| Background:  | This unique Australian AD specified modification of the clutch lock switch in accordance with Robinson SB No. 29 and Robinson Safety Notice No. 14 within25 hours time in service after April 1983. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n27 March 2009","sortOrder":0},{"sectionNumber":"AD/R22/17","sectionType":"part","heading":"AD/R22/17","content":"## AD/R22/17","sortOrder":1},{"sectionNumber":"Clutch Lock Switch - Modification","sectionType":"part","heading":"Clutch Lock Switch - Modification","content":"## Clutch Lock Switch - Modification","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":1217},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the previous AD/R22/17 without expanding, narrowing, or otherwise altering its regulatory scope. It represents a cessation of requirements rather than a change in the legislative footprint."},"complexity_factors":["Single operative provision (cancellation of previous instrument)","No defined terms or interpretation section","No cross-references to other active legislation","No conditions, exceptions, or procedural requirements"],"plain_english_summary":"**What this does:** This document officially scraps a previous aviation safety rule (called an Airworthiness Directive) that applied to Robinson R22 helicopters.\n\n**What the old rule required:** The cancelled rule had required helicopter owners to modify a specific part known as the \"clutch lock switch\" within 25 hours of flying time after April 1983, following the manufacturer's safety bulletins.\n\n**Who it affects:** Owners and operators of Robinson R22 series helicopters who were previously subject to the old directive.\n\n**Why it matters:** As of **7 May 2009**, helicopter owners no longer need to perform this specific modification to comply with this particular safety directive. The safety concern has been resolved or is now managed through other means, so the rule has been removed to reduce unnecessary regulatory burden."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-17-clutch-lock-switch-modification-cancelled","history":"/api/acts/ad-r22-17-clutch-lock-switch-modification-cancelled/history","analysis":"/api/acts/ad-r22-17-clutch-lock-switch-modification-cancelled/analysis","conflicts":"/api/acts/ad-r22-17-clutch-lock-switch-modification-cancelled/conflicts","importantCases":"/api/acts/ad-r22-17-clutch-lock-switch-modification-cancelled/important-cases","documents":"/api/acts/ad-r22-17-clutch-lock-switch-modification-cancelled/documents"}}