{"id":"F2006B07931","name":"Airworthiness Directives 2004 - Revocation and Remaking - Morovan Zlin Z 526 Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-morovan-zlin-z-526-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50985,"registerId":"commonwealth-F2006B07931-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Airworthiness Directives 2004 - Revocation and Remaking - Morovan Zlin Z 526 Series Aeroplanes","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\n Airworthiness Directives 2004\n\n I, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety\n\n Authority, acting under subregulation 39.001 (1) of the Civil\n\n Aviation Safety Regulations 1998:\n\n (a) revoke the Airworthiness Directives mentioned in\n\n Schedule 1; and\n\n (b) make, as separate instruments, each Airworthiness\n\n Directive mentioned in Schedule 1 and attached.\n\n \n\n ![](image.001.png)\n\n David Villiers\n\n Delegate of the Civil Aviation Safety Authority\n\n \n\n  20 December 2004\n\n Note:   Each attached Airworthiness Directive is being re-made in exactly the\n\n same form as appears in the latest published edition of the Directive.\n\n \n\n\n Schedule 1 Revocation and Remaking of\n\n Airworthiness Directives\n\n Morovan Zlin Z 526 Series Aeroplanes\n\n AD Name AD Number\n\n Elevator Control Countershaft Lever AD/Z 526/1\n\n Main Wing Spar Corrosion AD/Z 526/2\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains the exact same scope as the original directives. The note explicitly states each directive is being re-made 'in exactly the same form as appears in the latest published edition of the Directive.' This is purely a procedural restructuring of existing safety requirements, not an expansion of regulatory scope."},"complexity_factors":["Very short instrument (under 300 words)","Only 2 substantive items being revoked and remade","No defined terms section","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Simple binary structure: (a) revoke, (b) remake","No conditional logic or exceptions","Administrative remaking rather than substantive amendment"],"plain_english_summary":"This is a technical aviation safety instrument issued by the Civil Aviation Safety Authority (CASA) in December 2004. It does two things:\n\n**What it does:**\n- **Revokes** (cancels) two existing Airworthiness Directives for a specific type of Czech-made aircraft — the Morovan Zlin Z 526 series aeroplanes\n- **Remakes** those same directives as separate, standalone legal instruments\n\n**Who it affects:**\n- Owners and operators of Morovan Zlin Z 526 series aircraft (these are single-engine, two-seat aerobatic planes originally manufactured in what is now the Czech Republic)\n- Maintenance organisations servicing these aircraft\n- CASA itself, as the aviation safety regulator\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders that require aircraft owners to inspect, repair, or modify their planes to address unsafe conditions. The two directives being remade here address:\n- **AD/Z 526/1**: A problem with the elevator control countershaft lever (the elevator controls the plane's pitch — nose up or down)\n- **AD/Z 526/2**: Corrosion in the main wing spar (the spar is the main structural beam running through the wing; corrosion here could cause wing failure)\n\nThe note clarifies that the directives are being remade in exactly the same form — this is essentially an administrative housekeeping exercise to restructure how these safety orders exist in the legal framework, without changing their actual safety requirements."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope or content of the Airworthiness Directives. It revokes the listed ADs and re‑issues them in exactly the same form as their latest published editions (opening paragraph; Schedule 1; Note). The legal form has changed (separate instruments), but the operative requirements contained in the AD texts are preserved."},"complexity_factors":["Simple administrative action: revocation and re‑making of existing instruments rather than creation of new substantive requirements (opening paragraph; Note).","Cross-reference to enabling regulation (subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998) introduces a legal authority citation to check (opening paragraph).","Schedule lists two distinct ADs, so implementers must identify and attach the correct AD texts (Schedule 1).","Requirement that re‑made ADs match the latest published edition requires checking the published AD texts to confirm substance (Note)."],"plain_english_summary":"A CASA delegate has revoked two Airworthiness Directives for Morovan Zlin Z 526 series aeroplanes and re‑made them as separate legal instruments. The substantive text of each AD is unchanged from the latest published editions, so existing inspection, maintenance and compliance obligations remain the same. The action mainly alters the statutory form, affecting operators, owners and maintainers administratively rather than substantively."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-morovan-zlin-z-526-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-morovan-zlin-z-526-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-morovan-zlin-z-526-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-morovan-zlin-z-526-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-morovan-zlin-z-526-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-morovan-zlin-z-526-series-aeroplanes/documents"}}