{"id":"F2006B07855","name":"Airworthiness Directives 2004 - Revocation and Remaking - Eurocopter AS 350 (Ecureuil) Series Helicopters","slug":"airworthiness-directives-2004-revocation-and-remaking-eurocopter-as-350-ecureuil-series-helicopters","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50818,"registerId":"commonwealth-F2006B07855-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 AS 350 (Ecureuil) 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 AS 350 (Ecureuil) Series Helicopters\n\nAD Name AD Number\n\nTail Gearbox Attaching Lug Screws - Modification - CANCELLED AD/ECUREUIL/1\n\nYaw Control Rod - Modification - CANCELLED AD/ECUREUIL/2\n\nVibration Absorber Mounting Flange - Inspection AD/ECUREUIL/3\n\nMain Rotor Shaft Star Drive Adapter - Inspection AD/ECUREUIL/4\n\nTail Rotor Control Fixed Plate - Inspection of Self Aligning Bearing AD/ECUREUIL/5\n\nMain Rotor Spherical Thrust Bearings - Inspection - CANCELLED AD/ECUREUIL/6\n\nTail Rotor Hub - Installation of Flapping Hinge Wear Indicators - CANCELLED AD/ECUREUIL/7\n\nStarflex Star to Main Rotor Shaft Securing Bolts AD/ECUREUIL/8 Amdt 1\n\nMGB Bevel Gear Splines - CANCELLED AD/ECUREUIL/9\n\nRetirement Life - Fatigue Critical Components AD/ECUREUIL/10 Amdt 5\n\nMain Gear Box - Spectrometric Analysis of Lubricating Oil AD/ECUREUIL/11 Amdt 2\n\nTail Rotor Blade Pitch Horn AD/ECUREUIL/12 Amdt 3\n\nCargo Swing Installation - Modification - CANCELLED AD/ECUREUIL/13\n\nHydraulic Pump Driving Pulley - Inspection of Attachment Bolts - CANCELLED AD/ECUREUIL/14\n\nCANCELLED AD/ECUREUIL/15\n\nTail Rotor Blades, Bonding Separation of Stainless Steel Leading Edge AD/ECUREUIL/16 Amdt 1\n\nTail Rotor Drive Shaft Bearing - Inspection - CANCELLED AD/ECUREUIL/17\n\nUpper Fin Attachment Fitting - Inspection AD/ECUREUIL/18\n\nFuel Filter By-Pass Valve - Replacement - CANCELLED AD/ECUREUIL/19\n\nMain Gear Box Oil Filter - Inspection AD/ECUREUIL/20\n\nMain G/Box Bevel Reduction Gear Module AD/ECUREUIL/21 Amdt 1\n\nTail Rotor Blade Assembly AD/ECUREUIL/22 Amdt 6\n\nMain Rotor Mast AD/ECUREUIL/23 Amdt 4\n\nTail Rotor Blade Stainless Steel Leading Edge Protective Strips - Replacement - AD/ECUREUIL/24\n\nSliding Door Ball Joint - Inspection and Modification - CANCELLED AD/ECUREUIL/25 Amdt 1\n\nAir Cruisers Emergency Flotation System - Inspection/Modification AD/ECUREUIL/26 Amdt 1\n\nSecuraiglon (Ex Laiglon) Safety Belts - Modification - CANCELLED AD/ECUREUIL/27\n\nFuel/Oil Filters - Inspection - CANCELLED AD/ECUREUIL/28\n\nFuel System - CANCELLED AD/ECUREUIL/29\n\n  \nMain Rotor Sleeve Beams AD/ECUREUIL/30\n\nRear RH & LH Steps AD/ECUREUIL/31 Amdt 1\n\nFuel Filter - CANCELLED AD/ECUREUIL/32 Amdt 1\n\nStarflex Arms and MGB Suspension Bars - CANCELLED AD/ECUREUIL/33\n\nMain Rotor Head, Main Gearbox and Landing Gear AD/ECUREUIL/34\n\nPlanet Gear Cage to Rotor Shaft Attachment Bolts AD/ECUREUIL/35\n\nConsolidation of Early Airworthiness Directives AD/ECUREUIL/36 Amdt 2\n\nTail Rotor Control Spider AD/ECUREUIL/37 Amdt 1\n\nWinch Attachment Angle Brackets - CANCELLED AD/ECUREUIL/38 Amdt 1\n\nCargo Hook Emergency Manual Control AD/ECUREUIL/39\n\nTail Rotor Gearbox Casing AD/ECUREUIL/40\n\nBattery Thermal Sensor Connector AD/ECUREUIL/41\n\nServo Control Securing Screw AD/ECUREUIL/42 Amdt 1\n\nRotating Swashplate Bearing - CANCELLED AD/ECUREUIL/43 Amdt 1\n\nAft Section Tail Rotor Drive Shaft Bearings - CANCELLED AD/ECUREUIL/44 Amdt 1\n\nTail Rotor Pitch Control Lever Expansion Pin AD/ECUREUIL/45\n\nTail Rotor Drive Shaft Bearings AD/ECUREUIL/46\n\nElectric Hoist Installation AD/ECUREUIL/47 Amdt 1\n\nEmergency Locator Transmitter Antenna AD/ECUREUIL/48\n\nLucas Air Equipment Hoist - Explosive Squib AD/ECUREUIL/49\n\nMain Rotor Pitch Change Horn Bushes AD/ECUREUIL/50 Amdt 1\n\nEngine Bay Fire Detection AD/ECUREUIL/51 Amdt 1\n\nIn Door Sliding Windows AD/ECUREUIL/52 Amdt 1\n\nCyclic Pitch Change Rod AD/ECUREUIL/53\n\nMain Rotor Shaft Oil Jet AD/ECUREUIL/54\n\nMGB Suspension Bi-Directional Cross Beam AD/ECUREUIL/55 Amdt 1\n\nTail Boom-to-Aircraft Structure Junction Attachment Screws AD/ECUREUIL/56 Amdt 1\n\nTail Rotor Drive Shaft Bearings AD/ECUREUIL/57 Amdt 1\n\nSingle-Pole Circuit Breakers AD/ECUREUIL/58\n\nTail Rotor Hub Pitch Change Bearings AD/ECUREUIL/59 Amdt 4\n\nNR Indicator Lighting AD/ECUREUIL/60\n\nTR Head Pitch Change Plate Bearing Spacer AD/ECUREUIL/61 Amdt 1\n\nFerry Fuel Tanks AD/ECUREUIL/62\n\nThis AD yet to be Issued AD/ECUREUIL/63\n\nEngine Oil Pipe AD/ECUREUIL/64\n\nTail Rotor Drive Shaft Forward Fairing AD/ECUREUIL/65 Amdt 2\n\n  \nTail Rotor Hub Pitch Change Bearings AD/ECUREUIL/66 Amdt 1\n\nRear Bench Cushions AD/ECUREUIL/67 Amdt 1\n\nAncillary Systems Unit - Printed Circuit Board No.2 AD/ECUREUIL/68\n\nMain Rotor Starflex Star AD/ECUREUIL/69 Amdt 2\n\nMain Servocontrol Rods AD/ECUREUIL/70 Amdt 1\n\nTail Rotor Blade Trailing Edge AD/ECUREUIL/71\n\nBREEZE Electric Hoist AD/ECUREUIL/72\n\nSIREN Cargo Hooks AD/ECUREUIL/73\n\nTail Servo Control Rod Eye End Fitting AD/ECUREUIL/74 Amdt 1\n\nSwitching Unit AD/ECUREUIL/75\n\nElectrical Power AD/ECUREUIL/76\n\nHorizontal Situation Indicator AD/ECUREUIL/77 Amdt 1\n\nSliding Door AD/ECUREUIL/78 Amdt 1\n\n'TRW-SAMM' Main Servocontrols AD/ECUREUIL/79 Amdt 1\n\nMain Rotor and Tail Rotor Dynamic Components AD/ECUREUIL/80 Amdt 1\n\nMain Gearbox Cowling Seals AD/ECUREUIL/81\n\nElectric Hoists AD/ECUREUIL/82\n\nCyclic Control AD/ECUREUIL/83 Amdt 1\n\nHydraulic Fluid AD/ECUREUIL/84\n\nExhaust Duct and Fuel Line Interefence AD/ECUREUIL/85\n\nHorizontal Situation Indicator AD/ECUREUIL/86 Amdt 1\n\nMain Rotor STARFLEX Star AD/ECUREUIL/87\n\nCollective Pitch Lever Friction Mechanism AD/ECUREUIL/88\n\nBattery Lug Connection AD/ECUREUIL/89 Amdt 1\n\nFlight Control Stop Screws AD/ECUREUIL/90 Amdt 1\n\nAir Intake Cowling AD/ECUREUIL/91\n\nCamera System Installation AD/ECUREUIL/92\n\nCollective Lever Lock AD/ECUREUIL/93\n\nHoist Hooks AD/ECUREUIL/94\n\nEngine Controls - Twist Grip Solenoid AD/ECUREUIL/95\n\nRear Structure Junction Frame AD/ECUREUIL/96\n\nPilot's Cyclic Stick Friction Washers AD/ECUREUIL/97\n\nFuel - Fuel Bleed Lever AD/ECUREUIL/98\n\nLateral Cargo Hold Doors AD/ECUREUIL/99\n\nEmergency Floatation Gear - All-up Operating Weight AD/ECUREUIL/100\n\nHoist Operator's Belt Snap Hook AD/ECUREUIL/101\n\n  \nHydraulic System Cut Off AD/ECUREUIL/102\n\nCamera System Installation - 2 AD/ECUREUIL/103\n\nHydraulic Fluid in Cold Weather AD/ECUREUIL/104\n\nBREEZE Hoist Hooks AD/ECUREUIL/105\n\nTail Rotor Blade Trailing Edge Tab AD/ECUREUIL/106","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument maintains the exact same scope as the original 2004 Airworthiness Directives. The document explicitly states that each attached AD is being re-made 'in exactly the same form as appears in the latest published edition.' This is a pure administrative restructuring without expansion of regulatory scope."},"complexity_factors":["Single operational purpose (revocation and remaking) with straightforward execution","No substantive legal text in the instrument itself—all content is in attached schedules","Simple tabular schedule listing 106 items with minimal descriptive text per item","No defined terms section within this instrument (definitions presumably in attached ADs)","No conditional logic or nested exceptions in the primary instrument","Heavy reliance on external documents (the attached ADs themselves, which are not reproduced)","Cross-references only to the Civil Aviation Safety Regulations 1998 (single citation)"],"plain_english_summary":"CASA has revoked a 2004 bundled set of Airworthiness Directives for Eurocopter AS350 helicopters and reissued each directive as its own standalone legal instrument. This is administrative housekeeping: the safety requirements themselves remain unchanged, but owners, operators and maintenance organisations must note the new instrument numbers to ensure they reference and demonstrate compliance with the correct legal documents."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument does not change substantive obligations. It revokes the listed ADs and re-makes each in the same form (Note), so the practical scope of regulatory requirements for AS350 operators remains unchanged, while the legal form and citation of each AD are updated."},"complexity_factors":["Administrative revocation and re-issuance only — no substantive change to AD content per the Note (\"re-made in exactly the same form\").","Delegated decision-making under subregulation 39.001 (1) creates a straightforward legal basis but requires attention to delegation records.","Large schedule (many ADs listed, some marked CANCELLED and many with amendments) increases tracking and recordkeeping burden for operators and regulators (Schedule 1).","Changing legal form to separate instruments alters citation and enforcement references, requiring updates to maintenance and compliance documentation.","Potential for confusion where ADs are marked CANCELLED or show multiple amendments — increases administrative work to confirm current applicable instrument versions."],"plain_english_summary":"This instrument revokes a long list of Airworthiness Directives (ADs) for Eurocopter AS350 (Ecureuil) helicopters and re-issues each AD as a separate legal instrument, preserving their existing content. It is an administrative republishing that keeps the substantive requirements intact.\n\nOwners, operators, maintainers and regulators of AS350 helicopters are affected because the legal form of the listed ADs changes; compliance duties remain but parties must rely on the newly issued separate AD instruments for enforcement and recordkeeping."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-as-350-ecureuil-series-helicopters","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-as-350-ecureuil-series-helicopters/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-as-350-ecureuil-series-helicopters/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-as-350-ecureuil-series-helicopters/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-as-350-ecureuil-series-helicopters/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-eurocopter-as-350-ecureuil-series-helicopters/documents"}}