{"id":"F2009L01318","name":"AD/R22/4 Amdt 7 - Retirement Lives - Fatigue Critical Components - CANCELLED","slug":"ad-r22-4-amdt-7-retirement-lives-fatigue-critical-components-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":122306,"registerId":"commonwealth-F2009L01318-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Robinson R22 Series Helicopters","sectionType":"division","heading":"Robinson R22 Series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/R22/4 Amdt 7 | Retirement Lives - FatigueCritical Components | 5/2009 |\n| --------------- | --------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                          |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                                                                                                                                 |\n| Background:  | This unique Australian AD mandated the retirement lives of fatigue critical items. The retirement lives were those specified in the airworthiness limitation section of the R22 maintenance manual. The AD duplicated the effect of Civil Aviation Orders, Section 100.5, sub-section 9, and is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n27 March 2009","sortOrder":0},{"sectionNumber":"AD/R22/4 Amdt 7","sectionType":"part","heading":"AD/R22/4 Amdt 7","content":"## AD/R22/4 Amdt 7","sortOrder":1},{"sectionNumber":"Retirement Lives - FatigueCritical Compo","sectionType":"part","heading":"Retirement Lives - FatigueCritical Components","content":"## Retirement Lives - Fatigue  \nCritical Components","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":2141},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This version does not expand the scope of the legislation. Rather, it represents a complete cancellation of the instrument. The original purpose (mandating retirement lives for fatigue-critical components) is terminated, not broadened."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislative provisions (except a descriptive reference to CAO 100.5 explaining the reason for cancellation)","Document serves purely administrative purpose of removing a redundant requirement"],"plain_english_summary":"**What this is:** A cancellation of an aviation safety rule (Airworthiness Directive) for Robinson R22 helicopters.\n\n**What it used to do:** Previously, this rule required helicopter owners to retire (replace) specific parts—such as rotor blades and critical structural components—after they reached a set number of flight hours or takeoff/landing cycles. This prevented accidents caused by metal fatigue (wear and tear from repeated stress). The replacement schedules were those specified in the aircraft's maintenance manual.\n\n**Why it matters now:** The directive was cancelled because it duplicated requirements already found in the Civil Aviation Orders (Section 100.5). The safety standards still apply to these helicopters, but they are now governed by the general regulation rather than this specific directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-r22-4-amdt-7-retirement-lives-fatigue-critical-components-cancelled","history":"/api/acts/ad-r22-4-amdt-7-retirement-lives-fatigue-critical-components-cancelled/history","analysis":"/api/acts/ad-r22-4-amdt-7-retirement-lives-fatigue-critical-components-cancelled/analysis","conflicts":"/api/acts/ad-r22-4-amdt-7-retirement-lives-fatigue-critical-components-cancelled/conflicts","importantCases":"/api/acts/ad-r22-4-amdt-7-retirement-lives-fatigue-critical-components-cancelled/important-cases","documents":"/api/acts/ad-r22-4-amdt-7-retirement-lives-fatigue-critical-components-cancelled/documents"}}