{"id":"F2011L02148","name":"CASA ADCX 023/11 - Revocation of Airworthiness Directives","slug":"casa-adcx-023-11-revocation-of-airworthiness-directives","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":87539,"registerId":"commonwealth-F2011L02148-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA ADCX 023/11 - Revocation of Airworthiness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 023/11\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.\n\n \n\n![](image.001.png)\n\n \n\nMike Higgins  Manager\n\nContinuing Airworthiness\n\n24 October 2011\n\nRevocation of Airworthiness Directives\n\n1 Commencement\n\n This instrument commences on 28 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/HS 125/57 | 31 October 2011 |\n\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1533},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument remains precisely limited to its original administrative purpose: revoking a single, specific Airworthiness Directive. There is no expansion beyond the cancellation of AD/HS 125/57."},"complexity_factors":["Single operative provision containing only one revocation","No definitions or interpretation section","No conditional logic, exceptions, or cross-references to other legislation beyond the enabling regulation","Simple tabular format with only one entry"],"plain_english_summary":"This document officially cancels a specific aircraft safety order. **Airworthiness Directives** (ADs) are mandatory instructions issued by the Civil Aviation Safety Authority (CASA) that require aircraft owners to perform specific inspections, repairs, or modifications to fix unsafe conditions.\n\n**What this does:**\n- **Revokes (cancels)** Airworthiness Directive **AD/HS 125/57**, which previously applied to HS 125 series aircraft (British Aerospace business jets)\n- The instrument itself starts on 28 October 2011\n- The actual cancellation takes effect on 31 October 2011\n\n**Who it affects:**\n- Owners and operators of HS 125 aircraft\n- Maintenance organisations servicing these aircraft\n\n**Why it matters:**\nOperators no longer need to comply with the specific maintenance or inspection requirements outlined in the old directive. This typically happens when the safety issue has been resolved through other means, the affected fleet has been retired, or a newer directive has superseded the old one."}},"importantCases":[],"_links":{"self":"/api/acts/casa-adcx-023-11-revocation-of-airworthiness-directives","history":"/api/acts/casa-adcx-023-11-revocation-of-airworthiness-directives/history","analysis":"/api/acts/casa-adcx-023-11-revocation-of-airworthiness-directives/analysis","conflicts":"/api/acts/casa-adcx-023-11-revocation-of-airworthiness-directives/conflicts","importantCases":"/api/acts/casa-adcx-023-11-revocation-of-airworthiness-directives/important-cases","documents":"/api/acts/casa-adcx-023-11-revocation-of-airworthiness-directives/documents"}}