{"id":"F2013L01823","name":"CASA ADCX 021/13 — Revocation of Airworthiness Directives","slug":"casa-adcx-021-13-revocation-of-airworthiness-directives","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":127924,"registerId":"commonwealth-F2013L01823-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA ADCX 021/13 — Revocation of Airworthiness Directives","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 20.2\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nInstrument number CASA ADCX 021/13\n\nI, MICHAEL JAMES HIGGINS, Manager, Continuing Airworthiness, a delegate of CASA, make this instrument under subregulation 39.001 (1) of the Civil Aviation Safety Regulations 1998 and subsection 33 (3) of the Acts Interpretation Act 1901.\n\n![](image.001.png)\n\nMike Higgins  Manager  Continuing Airworthiness\n\n8 October 2013\n\nRevocation of Airworthiness Directives\n\n1 Commencement\n\n This instrument commences on 24 October 2013.\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/A330/96 | 24 October 2013 |\n| AD/BELL 206/150 | 25 October 2013 |\n| AD/BELL 407/15 Amdt 1 | 25 October 2013 |\n| AD/BELL 427/3 | 25 October 2013 |\n\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1752},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument remains strictly limited to its stated purpose of revoking the four specified Airworthiness Directives, with no expansion beyond the original regulatory intent."},"complexity_factors":["Single operative provision with no subsections or conditional clauses","No defined terms or interpretation section","Simple tabular schedule containing only 4 line items","No exceptions, cross-references, or nested legislative dependencies beyond the basic enabling provisions"],"plain_english_summary":"**What this does**\nThis instrument cancels (revokes) four specific Airworthiness Directives (ADs) previously issued by the Civil Aviation Safety Authority (CASA).\n\n**Which aircraft are affected**\n- **Airbus A330** (AD/A330/96)\n- **Bell 206 helicopters** (AD/BELL 206/150)\n- **Bell 407 helicopters** (AD/BELL 407/15 Amendment 1)\n- **Bell 427 helicopters** (AD/BELL 427/3)\n\n**What this means**\nAirworthiness Directives are mandatory safety instructions that aircraft owners and operators must follow. By revoking these four directives, CASA removes specific maintenance or inspection requirements for these aircraft models. This typically occurs when a safety issue has been resolved, the directive is no longer necessary, or it has been replaced by newer requirements.\n\n**When it takes effect**\nThe revocations apply on 24 and 25 October 2013 as specified for each directive in the schedule."}},"importantCases":[],"_links":{"self":"/api/acts/casa-adcx-021-13-revocation-of-airworthiness-directives","history":"/api/acts/casa-adcx-021-13-revocation-of-airworthiness-directives/history","analysis":"/api/acts/casa-adcx-021-13-revocation-of-airworthiness-directives/analysis","conflicts":"/api/acts/casa-adcx-021-13-revocation-of-airworthiness-directives/conflicts","importantCases":"/api/acts/casa-adcx-021-13-revocation-of-airworthiness-directives/important-cases","documents":"/api/acts/casa-adcx-021-13-revocation-of-airworthiness-directives/documents"}}