{"id":"F2006B07884","name":"Airworthiness Directives 2004 - Revocation and Remaking - General Electric Turbine Engines - CJ610 Series","slug":"airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cj610-series","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50883,"registerId":"commonwealth-F2006B07884-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 - General Electric Turbine Engines - CJ610 Series","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\nGeneral Electric Turbine Engines - CJ610 Series\n\nAD Name AD Number\n\nMajor Rotating Components - Life Limits - CANCELLED AD/CJ610/1\n\nStage 1 Turbine Wheels AD/CJ610/2\n\nStage 2 Turbine Wheels AD/CJ610/3\n\nOuter Combustion Casing AD/CJ610/4\n\nCompressor Discs AD/CJ610/5\n\nStage 2 Turbine Wheels AD/CJ610/6","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument maintains the exact same scope as the original Airworthiness Directives. The note explicitly states each directive is being 're-made in exactly the same form as appears in the latest published edition.' This is purely a structural reorganization under the 2004 Airworthiness Directives framework, not an expansion of regulatory scope."},"complexity_factors":["Very short instrument (under 300 words)","Only 6 items in schedule, presented in simple table format","Single operative provision with two straightforward actions (revoke and remake)","No defined terms section","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Simple conditional logic (if mentioned in Schedule 1, then revoke and remake)","Note provides helpful clarification that content remains unchanged"],"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) six existing Airworthiness Directives for General Electric CJ610 series turbine engines\n- **Remakes** those same six directives as separate, standalone legal instruments\n\n**Who it affects:**\n- Owners and operators of aircraft using General Electric CJ610 series turbine engines\n- Maintenance organisations servicing these engines\n- These engines are commonly used in business jets like the Learjet 25 and 35 series\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders that require specific inspections, repairs, or modifications to aircraft components. This instrument is part of a broader 2004 program to reorganise Australia's aviation safety rules. The directives being remade cover critical engine parts including:\n- Turbine wheels (stages 1 and 2)\n- Compressor discs\n- Outer combustion casing\n- Major rotating components (life limits)\n\nThe note clarifies that despite being reissued as separate instruments, the actual safety requirements remain unchanged from their previous versions. This is essentially an administrative housekeeping exercise to improve the structure of aviation safety regulations, not a change to the safety standards themselves."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"Primarily an administrative instrument that revokes and re-issues existing ADs in separate instruments without changing their substantive text (see paragraphs (a) and (b) and the Note). However, Schedule 1 explicitly marks AD/CJ610/1 as CANCELLED, which removes that directive's requirements. Apart from that cancellation, the instrument leaves the substantive content of the re‑issued ADs unchanged (Schedule 1; Note)."},"complexity_factors":["Short, single-purpose instrument with few operative paragraphs (revocation and re-making only).","Cross-reference to an external regulation as the legal authority (subregulation 39.001(1)).","Inclusion of a Schedule listing multiple ADs, one of which is explicitly cancelled (administrative nuance).","Reliance on attached ADs and a Note that states substantive identity with latest published editions (requires checking attachments/publications to see full operational content)."],"plain_english_summary":"This instrument cancels and re-issues CASA airworthiness directives for General Electric CJ610 engines — re‑making most ADs as separate instruments in their existing form while expressly cancelling AD/CJ610/1.  \n\nOwners, operators and maintenance organisations of CJ610‑equipped aircraft are affected, bearing compliance and administrative record‑keeping responsibilities; the change is principally administrative, not substantive."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cj610-series","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cj610-series/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cj610-series/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cj610-series/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cj610-series/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cj610-series/documents"}}