{"id":"F2011L00329","name":"CASA ADCX 004/11 - Revocation of Airworthiness Directives","slug":"casa-adcx-004-11-revocation-of-airworthiness-directives","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":85616,"registerId":"commonwealth-F2011L00329-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA ADCX 004/11 - Revocation of Airworthiness Directives","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: Revocation of directions\nmeta-generator: Aspose.Words for .NET 20.2\ntitle: CASA 354/06\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nInstrument number CASA ADCX 004/11\n\nI, DAVID ALAN VILLIERS, Manager, Initial Airworthiness, a delegate of CASA, make this instrument under subregulation 39.001 (1) of the Civil Aviation Safety Regulations 1998.\n\n\n![](image.001.png) \n\nDavid Villiers  Manager\n\nInitial Airworthiness\n\n28 February 2011\n\nRevocation of Airworthiness Directives\n\n1 Commencement\n\n This instrument commences on 1 March 2011.\n\n2 Revocation\n\n Each Airworthiness Directive (AD) mentioned in Schedule 1 is revoked on the date specified for it in the Schedule.\n\nSchedule 1 Revocation of ADs\n\n| AD | Revocation date |\n| --- | --- |\n| AD/A320/135 Amdt 1 | 1 March 2011 |\n\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1717},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly the narrow function described in its title—revoking a single specified Airworthiness Directive. There is no expansion of scope beyond removing this specific requirement."},"complexity_factors":["Single operative provision consisting of one sentence with no conditional logic","Schedule contains only one entry (the revoked Airworthiness Directive)","No definitions, interpretation clauses, or exceptions","No cross-references to other legislation beyond the enabling subregulation","Simple two-column tabular format"],"plain_english_summary":"This instrument **cancels a specific aircraft maintenance rule** for Airbus A320 planes.\n\n**What it does:**\n- Revokes (cancels) Airworthiness Directive **AD/A320/135 Amdt 1** as of 1 March 2011\n- This removes a previously mandatory safety requirement that aircraft operators had to follow\n\n**Background:**\nAn Airworthiness Directive (AD) is a legally binding instruction issued by the Civil Aviation Safety Authority (CASA) when a safety problem is found with an aircraft, engine, or component. ADs typically require operators to perform specific inspections, repairs, or modifications within set timeframes.\n\n**Why it matters:**\nWhen CASA revokes an AD, it usually means the safety issue has been resolved (for example, through design changes), a newer directive has replaced the old one, or the original safety concern is no longer valid. Aircraft operators subject to this change no longer need to perform the specific maintenance tasks or inspections required by the cancelled directive."}},"importantCases":[],"_links":{"self":"/api/acts/casa-adcx-004-11-revocation-of-airworthiness-directives","history":"/api/acts/casa-adcx-004-11-revocation-of-airworthiness-directives/history","analysis":"/api/acts/casa-adcx-004-11-revocation-of-airworthiness-directives/analysis","conflicts":"/api/acts/casa-adcx-004-11-revocation-of-airworthiness-directives/conflicts","importantCases":"/api/acts/casa-adcx-004-11-revocation-of-airworthiness-directives/important-cases","documents":"/api/acts/casa-adcx-004-11-revocation-of-airworthiness-directives/documents"}}