{"id":"F2011L02040","name":"CASA ADCX 021/11 - Revocation of Airworthiness Directives","slug":"casa-adcx-021-11-revocation-of-airworthiness-directives","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":87434,"registerId":"commonwealth-F2011L02040-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA ADCX 021/11 - Revocation of Airworthiness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 021/11\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\n![](image.001.png)\n\nDavid Villiers  Manager\n\nInitial Airworthiness\n\n4 October 2011\n\nRevocation of Airworthiness Directives\n\n1 Commencement\n\n This instrument commences on 11 October 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/AB139/3 Amdt 1 | 12 October 2011 |\n| AD/PA-23/93 | 3 November 2011 |\n| AD/PA-31/131 | 3 November 2011 |\n| AD/PA-42/26 | 3 November 2011 |\n| AD/CL-600/63 | 18 October 2011 |\n| AD/B737/209 | 7 November 2011 |\n\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1643},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly the limited administrative function described in its title—revoking specific Airworthiness Directives. There is no expansion beyond the stated purpose of removing outdated or superseded safety requirements."},"complexity_factors":["No defined terms section","Single operative provision (revocation)","Simple tabular schedule containing only 6 entries","No conditional language, exceptions, or cross-references to other provisions","Direct administrative revocation without transitional arrangements"],"plain_english_summary":"This instrument, made by David Villiers as a delegate of CASA, cancels six specific Airworthiness Directives affecting AgustaWestland AW139, several Piper types (PA‑23/PA‑31/PA‑42), Bombardier CL‑600 series and Boeing 737. It commences 11 October 2011, with the individual revocations taking effect on dates in October–November 2011. Operators and owners are affected because the revoked ADs’ mandatory inspection/repair requirements no longer apply, altering compliance and maintenance obligations."}},"importantCases":[],"_links":{"self":"/api/acts/casa-adcx-021-11-revocation-of-airworthiness-directives","history":"/api/acts/casa-adcx-021-11-revocation-of-airworthiness-directives/history","analysis":"/api/acts/casa-adcx-021-11-revocation-of-airworthiness-directives/analysis","conflicts":"/api/acts/casa-adcx-021-11-revocation-of-airworthiness-directives/conflicts","importantCases":"/api/acts/casa-adcx-021-11-revocation-of-airworthiness-directives/important-cases","documents":"/api/acts/casa-adcx-021-11-revocation-of-airworthiness-directives/documents"}}