{"id":"F2009L01509","name":"AD/R22/21 Amdt 2 - Sprag Clutch Replacement - CANCELLED","slug":"ad-r22-21-amdt-2-sprag-clutch-replacement-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78131,"registerId":"commonwealth-F2009L01509-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robinson R22 Series Helicopters","sectionType":"division","heading":"Robinson R22 Series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/R22/21 Amdt 2 | Sprag Clutch Replacement | 5/2009 |\n| ---------------- | ------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                       |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                              |\n| Background:  | This unique Australian AD specified replacement of the sprag clutch with a new sprag clutch A188-2 in accordance with Robinson SB No. 46 before further flight after January 1986. 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/R22/21 Amdt 2","sectionType":"part","heading":"AD/R22/21 Amdt 2","content":"## AD/R22/21 Amdt 2","sortOrder":1},{"sectionNumber":"Sprag Clutch Replacement","sectionType":"part","heading":"Sprag Clutch Replacement","content":"## Sprag Clutch Replacement","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":2512},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument cancels the previous Airworthiness Directive rather than expanding its scope. The original purpose was to mandate a safety modification; this version terminates that mandate entirely. There is no scope creep or expansion of regulatory reach."},"complexity_factors":["Single, unambiguous operative provision (cancellation)","No defined terms or interpretation section","No cross-references to other legislative instruments","No conditions, exceptions, or procedural steps","Extremely brief (less than 50 words of substantive content)"],"plain_english_summary":"This cancelled Airworthiness Directive previously mandated replacement of the Robinson R22 sprag clutch with an improved A188-2 unit per Service Bulletin No. 46. As of 7 May 2009 the AD is rescinded and its replacement requirement no longer applies. R22 owners, operators, and maintenance personnel should note the directive is no longer legally binding."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-21-amdt-2-sprag-clutch-replacement-cancelled","history":"/api/acts/ad-r22-21-amdt-2-sprag-clutch-replacement-cancelled/history","analysis":"/api/acts/ad-r22-21-amdt-2-sprag-clutch-replacement-cancelled/analysis","conflicts":"/api/acts/ad-r22-21-amdt-2-sprag-clutch-replacement-cancelled/conflicts","importantCases":"/api/acts/ad-r22-21-amdt-2-sprag-clutch-replacement-cancelled/important-cases","documents":"/api/acts/ad-r22-21-amdt-2-sprag-clutch-replacement-cancelled/documents"}}