{"id":"F2006B07930","name":"Airworthiness Directives 2004 - Revocation and Remaking - Moravan Zlin Z-242L Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-moravan-zlin-z-242l-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50983,"registerId":"commonwealth-F2006B07930-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 - Moravan Zlin Z-242L Series Aeroplanes","content":"Airworthiness Directives 2004\n\nI, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety\n\nAuthority, acting under subregulation 39.001 (1) of the Civil\n\nAviation Safety Regulations 1998:\n\n(a) revoke the Airworthiness Directives mentioned in\n\nSchedule 1; and\n\n(b) make, as separate instruments, each Airworthiness\n\nDirective mentioned in Schedule 1 and attached.\n\n![](image.001.png)\n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority\n\n20 December 2004\n\nNote: Each attached Airworthiness Directive is being re-made in exactly the\n\nsame form as appears in the latest published edition of the Directive.\n\n  \nSchedule 1 Revocation and Remaking of\n\nAirworthiness Directives\n\nMoravan Zlin Z-242L Series Aeroplanes\n\nAD Name AD Number\n\nOil Sludge Valve AD/Z-242L/1\n\nWing Life - CANCELLED AD/Z-242L/2\n\nLimitation of Operation AD/Z-242L/3 Amdt 1\n\nLimitation of Operation - 2 AD/Z-242L/4 Amdt 1\n\nEngine Oil System Adhesive Joints AD/Z-242L/5","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive requirements of the listed Airworthiness Directives: it revokes the listed ADs and reissues them as separate instruments in exactly the same form as the latest published editions (see paras (a), (b) and the Note). The practical scope of regulatory obligations therefore remains the same. The Schedule does include one entry marked 'CANCELLED' (AD/Z-242L/2), which indicates that that particular AD has been cancelled or requires clarification; that is an isolated, document-level difference rather than a change to the stated substantive requirements of the reissued ADs."},"complexity_factors":["Legal formality of revoking and reissuing instruments (paras (a) and (b))","Reference to delegated power under subregulation 39.001(1) (requires understanding of delegation mechanics)","Schedule lists multiple ADs for a specific aircraft series (administrative handling across instruments)","Schedule contains an entry marked 'CANCELLED' (AD/Z-242L/2) creating potential ambiguity in implementation","Requirement that attached ADs match the latest published edition exactly (procedural precision required)"],"plain_english_summary":"A CASA delegate revokes listed Airworthiness Directives for Moravan Zlin Z-242L aeroplanes and reissues each as a separate instrument in the same substantive form, preserving existing mandatory safety requirements.  \n\nThis affects operators, owners, maintenance organisations and certificated personnel who must continue compliance; it creates no new substantive costs but may impose minor administrative burdens to update records and citations."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains the exact same scope as the original Airworthiness Directives. The delegate explicitly notes that each directive is being re-made 'in exactly the same form as appears in the latest published edition.' There is no expansion of regulatory scope — it is purely an administrative reissuance."},"complexity_factors":["Very short instrument (under 300 words)","Only 1 defined term implicitly used ('Airworthiness Directive' — understood in aviation context)","No conditional logic or nested exceptions","Simple two-step structure: (a) revoke, (b) re-make","Schedule contains only a simple table with 5 rows","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Explicitly states directives are re-made 'in exactly the same form' — no substantive changes to interpret"],"plain_english_summary":"**What this legislation does:**\n\nThis instrument is a **housekeeping measure** for aviation safety rules. It revokes (cancels) and immediately re-makes five existing Airworthiness Directives for a specific type of light aircraft — the **Moravan Zlin Z-242L series** (a Czech-made two-seat training and aerobatic plane).\n\n**Who it affects:**\n- **Aircraft owners and operators** of Z-242L planes in Australia\n- **Maintenance engineers** who work on these aircraft\n- **The Civil Aviation Safety Authority (CASA)** — Australia's aviation safety regulator\n\n**Why it matters:**\nAirworthiness Directives are **legally binding safety orders** that require specific inspections, repairs, or operational limits to keep aircraft safe to fly. This instrument doesn't change any safety requirements — it simply **reissues the same rules** as separate legal instruments. This is likely done for administrative clarity, to ensure each directive stands alone for easier reference and compliance tracking.\n\n**The five directives cover:**\n- **Oil sludge valve** maintenance (AD/Z-242L/1)\n- **Wing life limits** — *note: this one was already cancelled* (AD/Z-242L/2)\n- **Operational limitations** — two separate directives (AD/Z-242L/3 and AD/Z-242L/4)\n- **Engine oil system adhesive joints** inspection/repair (AD/Z-242L/5)\n\n**Key takeaway:** If you fly or maintain a Z-242L, nothing changes — your safety obligations stay exactly the same. This is just paperwork tidying."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-moravan-zlin-z-242l-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-moravan-zlin-z-242l-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-moravan-zlin-z-242l-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-moravan-zlin-z-242l-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-moravan-zlin-z-242l-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-moravan-zlin-z-242l-series-aeroplanes/documents"}}