{"id":"F2006B07859","name":"Airworthiness Directives 2004 - Revocation and Remaking - Eurocopter EC 120 Series Helicopters","slug":"airworthiness-directives-2004-revocation-and-remaking-eurocopter-ec-120-series-helicopters","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50828,"registerId":"commonwealth-F2006B07859-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 - Eurocopter EC 120 Series Helicopters","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\nEurocopter EC 120 Series Helicopters\n\nAD Name AD Number\n\nTail Gearbox - Load Measurements AD/EC 120/1\n\nEngine to Main Gearbox (MGB) Coupling Tube Assembly AD/EC 120/2 Amdt 2\n\nReinforced Coupling Tube Assembly AD/EC 120/3 Amdt 4\n\nCabin Sliding Door AD/EC 120/4 Amdt 1\n\nRotor Flight Controls AD/EC 120/5\n\nYaw Control AD/EC 120/6 Amdt 1\n\nHorizontal Situation Indicator AD/EC 120/7 Amdt 1\n\nRotor Flight Controls - Cyclic Pitch Control Sticks AD/EC 120/8 Amdt 1\n\nCollective Pitch Lever Friction Mechanism AD/EC 120/9\n\nFlight Control Stop Screws AD/EC 120/10 Amdt 1\n\nTail Rotor Drive Shaft Damper AD/EC 120/11\n\nCollective Torque Tube Assembly AD/EC 120/12\n\nPilot's Cyclic Stick Friction Washers AD/EC 120/13","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 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 procedural re-authorisation under current regulations, not an expansion of regulatory scope."},"complexity_factors":["Single operative provision with two clear actions (revocation and remaking)","13 items listed in a simple tabular schedule","No defined terms section","No nested conditional logic or cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Straightforward administrative remaking without substantive amendment","Technical content (the actual Airworthiness Directives) attached but not reproduced in the legislative text itself"],"plain_english_summary":"This CASA instrument cancels 13 existing Airworthiness Directives for Eurocopter EC120 helicopters and reissues them as new, separate legal instruments. It affects Australian owners, operators and maintenance providers of EC120s. The move is procedural: the technical requirements for inspections, repairs and modifications (e.g., tail gearbox, controls, engine couplings, doors, instruments) remain unchanged but are formally re‑packaged under current regulations."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope unchanged. The instrument expressly revokes the listed ADs and re‑makes each \"in exactly the same form\" as the latest published edition (see Schedule 1 and accompanying note), so operator obligations and the substantive requirements of the ADs remain the same."},"complexity_factors":["Administrative nature: instrument revokes and re‑makes ADs without substantive change (Note: 'exactly the same form').","Multiple items listed: Schedule 1 enumerates 13 separate ADs (some with amendments), requiring cross‑referencing.","Legal authority: action taken under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998.","Compliance burden persists for operators: obligations under each AD continue, so operational/maintenance costs remain.","Record‑keeping/administration: must ensure each re‑made AD is tracked as a separate instrument for enforcement and publication.","Low interpretive complexity: no new standards, conditions, or discretionary criteria introduced by this instrument."],"plain_english_summary":"This instrument revokes and re‑issues, in identical form, a set of Airworthiness Directives (ADs) applying to Eurocopter EC 120 series helicopters. The Civil Aviation Safety Authority delegate, acting under subregulation 39.001(1), cancels the listed ADs in Schedule 1 and makes each AD a separate instrument. It affects owners and operators of EC120 helicopters, who must continue to comply with the same inspection, maintenance and reporting obligations and bear any resulting costs. The change is administrative only: the ADs remain \"exactly the same form\" as published."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-ec-120-series-helicopters","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-ec-120-series-helicopters/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-ec-120-series-helicopters/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-ec-120-series-helicopters/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-ec-120-series-helicopters/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-ec-120-series-helicopters/documents"}}