{"id":"F2006B07830","name":"Airworthiness Directives 2004 - Revocation and Remaking - DH 85 (Leopard Moth) Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-dh-85-leopard-moth-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50740,"registerId":"commonwealth-F2006B07830-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 - DH 85 (Leopard Moth) 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 DH 85 (Leopard Moth) Series Aeroplanes\n\n AD Name AD Number\n\n Flight Limitations and Structural Inspection AD/DH 85/1 Amdt 1\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains identical scope to the original directive. The explicit note confirms the airworthiness directive is remade \"in exactly the same form,\" indicating no expansion of regulatory burden or subject matter."},"complexity_factors":["Extremely short — only 2 substantive operative paragraphs plus a schedule","Single defined scope: only one aircraft type (DH 85 Leopard Moth) and one specific directive","No nested conditional logic or cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","No interpretation section or defined terms","Straightforward binary structure: revoke old, make new"],"plain_english_summary":"**What this does:**\nThis instrument is an administrative housekeeping measure from the Civil Aviation Safety Authority (CASA). It **revokes** (cancels) an existing airworthiness directive for DH 85 Leopard Moth aeroplanes and **remakes** it as a separate, standalone legal instrument.\n\n**Who it affects:**\n- Owners and operators of DH 85 Leopard Moth aircraft (a 1930s British biplane, now mostly in heritage/private use)\n- Aircraft maintenance engineers who work on these planes\n\n**Why it matters:**\nAirworthiness directives are legally binding safety orders. They tell aircraft owners what inspections or repairs they must do to keep flying legally. This particular directive deals with **flight limitations and structural inspections** — essentially rules about how the plane can be flown and what checks are needed on its airframe.\n\nThe \"revoke and remake\" process doesn't change the actual safety requirements. As the note says, the directive is being remade \"in exactly the same form.\" This is a **legal tidying-up exercise** — likely moving the directive from an old regulatory format into a new legislative structure under the Civil Aviation Safety Regulations 1998.\n\n**Key takeaway:** If you own a Leopard Moth, nothing changes in practice. The same safety rules still apply, just under a slightly different legal instrument."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope or requirements of the Airworthiness Directive(s). It revokes the listed AD(s) and re-makes them \"in exactly the same form as appears in the latest published edition of the Directive\" (Note), so obligations on operators of DH 85 (Leopard Moth) series aeroplanes (as listed in Schedule 1: \"Flight Limitations and Structural Inspection\" AD/DH 85/1 Amdt 1) remain unchanged. The change is legal/administrative form rather than substance (instrument paras 1(a)–(b); Schedule 1; Note)."},"complexity_factors":["Single, narrowly described administrative action (revocation and re-making of ADs) rather than substantive regulatory change.","Reference to a specific enabling provision (subregulation 39.001(1)) requires basic legal literacy to locate authority.","Dependence on attachments and the \"latest published edition\" language — requires checking the attached ADs/latest edition to confirm substance.","Limited text: few operative clauses reduce interpretive ambiguity but increase reliance on external documents (the attached ADs and the enabling regulation).","Potential administrative transition issues (which document is operative) though substance is stated to be identical."],"plain_english_summary":"The CASA delegate revokes listed Airworthiness Directive(s) for DH 85 (Leopard Moth) aeroplanes and re‑issues each as separate legal instruments under subregulation 39.001(1). Substantive requirements are re‑made “in exactly the same form,” so operators, owners and maintainers remain subject to the same inspection/operational obligations and costs; the change is primarily administrative."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh-85-leopard-moth-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh-85-leopard-moth-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh-85-leopard-moth-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh-85-leopard-moth-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh-85-leopard-moth-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dh-85-leopard-moth-series-aeroplanes/documents"}}