{"id":"F2006B07762","name":"Airworthiness Directives 2004 - Revocation and Remaking - Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters","slug":"airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-canada-bhtc-206-and-ag","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50517,"registerId":"commonwealth-F2006B07762-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 - Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 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\nBell Helicopter Textron Canada (BHTC) Agusta Bell 206 Series Helicopters\n\nAD Name AD Number\n\nFuel Booster Pump Wiring - Modification AD/BELL 206/1\n\nExhaust Stack Clamps - Replacement AD/BELL 206/2\n\nForward Engine Mount Attachment - Inspection and Modification AD/BELL 206/3\n\nControl Tubes - Inspection AD/BELL 206/4\n\nCyclic Pitch Control System Lever - Inspection and Modification AD/BELL 206/5\n\nRetirement Life - Fatigue Critical Components AD/BELL 206/6 Amdt 35\n\nTail Boom - Inspection AD/BELL 206/7 Amdt 1\n\nTransmission Spider - Inspection and Life Limitation AD/BELL 206/8 Amdt 2\n\nTail Rotor Control Tube - Inspection AD/BELL 206/9 Amdt 1\n\nRemoval Of Landing Gear Spacers - Modification AD/BELL 206/10\n\nMain Rotor Blade Retention Bolt - Inspection AD/BELL 206/11\n\nTransmission Magnetic Drain Plug B-734 Replacement AD/BELL 206/12\n\nFan Shaft Assembly - Inspection AD/BELL 206/13\n\nCyclic Control Bellcrank Supports - Inspection and Replacement AD/BELL 206/14 Amdt 2\n\nTail Rotor Pedal Controls Modification AD/BELL 206/15\n\nCyclic Stick Balance Spring Clip - Inspection AD/BELL 206/16\n\nTransmission Mount Spindle - Inspection AD/BELL 206/17 Amdt 1\n\nConsole Access Panel Attachment Screws - Replacement AD/BELL 206/18\n\nTail Rotor Pedal Controls - Inspection AD/BELL 206/19 Amdt 1\n\nCyclic Control Installation - Fitment of Balance Spring AD/BELL 206/20 Amdt 1\n\nCyclic Stick Lever Assembly P/N 206-00-339-1 - Inspection AD/BELL 206/21\n\nHydraulic Actuator - Replacement AD/BELL 206/22\n\nOverhead Console Installation - Inspection AD/BELL 206/23\n\nEngine Chip Detector Indicator - Installation AD/BELL 206/24\n\nTail Rotor Balance Check and Tail Rotor Gearbox Casing and Mounting AD/BELL 206/25\n\nEngine Firewall Seal - Modification AD/BELL 206/26\n\nVoltage Regulator - Replacement AD/BELL 206/27\n\nEngine Bell Mouth Seal Doubler - Modification AD/BELL 206/28\n\nCover Assembly P/N 206-001-012-1 or P/N 206-001-012-7 - Inspection and AD/BELL 206/29\n\n  \nMain Transmission Magnetic Plug - Inspection AD/BELL 206/30\n\nMain Transmission - Modification AD/BELL 206/31\n\nAluminium Fuel Lines - Replacement AD/BELL 206/32\n\nCANCELLED AD/BELL 206/33 Amdt 2\n\nStrap P/N 206-031-200-23 and -24 - Replacement AD/BELL 206/34 Amdt 1\n\nSuperseded by AD/BELL 206/6 Amdt7 - CANCELLED AD/BELL 206/35 Amdt 3\n\nEmergency Flotation Solenoid Valve - Inspection AD/BELL 206/36 Amdt 1\n\nAnti Torque Control Idler Assembly P/N 206-001-746-5 - Inspection and Rework AD/BELL 206/37\n\nMain Rotor Mast - Inspection AD/BELL 206/38\n\nNut P/N 1022A14 Main Rotor Hub Latch Bolt and Blade Retention Bolt - AD/BELL 206/39\n\nTail Rotor Control Tube Tunnel - Modification AD/BELL 206/40\n\nVertical Fin - Inspection AD/BELL 206/41\n\nPylon Support Link P/N 206-031-508 - Inspection AD/BELL 206/42 Amdt 2\n\nHeater Fuel Line P/N 206-070-705-1 - Inspection AD/BELL 206/43\n\nRotor Brake Disc Assembly P/N 4000071 - Inspection and Modification AD/BELL 206/44\n\nTail Rotor Drive Shaft Cover and Lower Skin of Horizontal Stabilizer - AD/BELL 206/45\n\nTailboom Skin Splice - Inspection AD/BELL 206/46 Amdt 1\n\nHydraulic Servo Actuator Piston P/N 41000005 - Inspection and Replacement AD/BELL 206/47 Amdt 1\n\nTail Rotor Blades - Inspection - CANCELLED AD/BELL 206/48 Amdt 1\n\nHydraulic Servo Actuator Servo Valve Drive Locknut - Inspection AD/BELL 206/49\n\nMain Rotor Pitch Link Tubes - Inspection AD/BELL 206/50\n\nVertical Fin Support Forgings AD/BELL 206/51 Amdt 2\n\nHeater Fuel Line P/N 206-070-231-1 - Inspection AD/BELL 206/52\n\nCANCELLED AD/BELL 206/53\n\nTail Rotor Gearbox Assembly - Inspection AD/BELL 206/54\n\nPylon Support Link P/N 206-031-508-5 and -7 - Replacement AD/BELL 206/55\n\nStarter Generator Retaining Clamp T Bolt - Inspection AD/BELL 206/56 Amdt 1\n\nHorizontal Stabilizer AD/BELL 206/57 Amdt 2\n\nFull Cell Cavity and Vent Line Modification AD/BELL 206/58\n\nOil Pressure Tube Assemblies - Inspection and Replacement AD/BELL 206/59\n\nFlight Control System Bolts - Inspection and Replacement AD/BELL 206/60 Amdt 1\n\nMain Rotor Hub Yoke - Inspection and Rework AD/BELL 206/61\n\nMain Rotor Grips - Inspection and Replacement - CANCELLED AD/BELL 206/62 Amdt 1\n\nHorizontal Stabilizer - Modification AD/BELL 206/63\n\nSuperseded by AD/BELL 206/62 Amdt1 - CANCELLED AD/BELL 206/64\n\nMain Rotor Pitch Link Clevises - Inspection AD/BELL 206/65 Amdt 2\n\n  \nTail Rotor Control Tube - Inspection AD/BELL 206/66\n\nTail Rotor Drive - Inspection of Clamp Type Bearing Hangars AD/BELL 206/67\n\nMain Rotor Pillow Block Bushings - Replacement AD/BELL 206/68\n\nPassenger Door Attachments - Inspection AD/BELL 206/69\n\nHydraulic Servo Actuator Support Assembly - Inspection AD/BELL 206/70 Amdt 2\n\nMain Rotor Split Cone Set - Inspection AD/BELL 206/71\n\nCANCELLED AD/BELL 206/72 Amdt 6\n\nMain Rotor Hub Pillow Block AD/BELL 206/73 Amdt 7\n\nTail Rotor Drive Shaft Bearings - Replacement AD/BELL 206/74\n\nCANCELLED AD/BELL 206/75\n\nHorizontal Stabiliser - Inspection and Modification or Retirement AD/BELL 206/76 Amdt 2\n\nTail Rotor Drive Shaft - Replacement of Bearing Hangars AD/BELL 206/77\n\nFreewheeling Outer Race Shaft - Inspection AD/BELL 206/78\n\nMain Input Drive Shaft Assembly - Inspection and Installation of Visual Aid AD/BELL 206/79 Amdt 1\n\nFuel Feed Tube and Vent Tube - Replacement AD/BELL 206/80\n\nAuxiliary Fin - Inspection AD/BELL 206/81\n\nCentre Post Installation - Structural Attachment - Inspection and Modification AD/BELL 206/82\n\nMain Rotor Trunnion - Inspection and Retirement - CANCELLED AD/BELL 206/83 Amdt 2\n\nMain Rotor Trunnion - Inspection and Retirement - CANCELLED AD/BELL 206/84 Amdt 1\n\nFuel Filter and Hoses Installation - Modification AD/BELL 206/85 Amdt 1\n\nPylon Support Installation Retaining Bolts - Inspection AD/BELL 206/86\n\nCANCELLED \\- AD/SUPP/2 Amdt1 refers - CANCELLED AD/BELL 206/87\n\nBattery Relay Diode Assembly P/N 30-037-13 - Replacement AD/BELL 206/88\n\nEmergency Flotation Kit Valve Assembly P/N 206-073-915-5 - Inspection AD/BELL 206/89\n\nTail Rotor Blade Tip Block AD/BELL 206/90 Amdt 6\n\nLongeron P/N 206-031-314 - Inspection and Repair AD/BELL 206/91 Amdt 1\n\nCANCELLED AD/BELL 206/92\n\nTail Rotor Gearbox P/N 206-040-400 (All Dash Numbers) and P/N 206-040- AD/BELL 206/93\n\nAuxiliary Fuel System - Modification AD/BELL 206/94\n\nCANCELLED AD/BELL 206/95 Amdt 1\n\nFuel Supply Tube Assembly AD/BELL 206/96\n\nQuick Disconnect Dual Controls AD/BELL 206/97 Amdt 2\n\nMain Rotor Blade - Inspection AD/BELL 206/98\n\nCyclic Control Stick Assembly AD/BELL 206/99 Amdt 2\n\nMain Rotor Blade Retaining Nuts P/N 206-011-119-1 AD/BELL 206/100\n\nTail Boom to Gearbox Attachment AD/BELL 206/101 Amdt 1\n\n  \nTail Rotor Yoke and Pitch Links AD/BELL 206/102 Amdt 2\n\nTension/Torsion Strap Fitting AD/BELL 206/103\n\nOil Cooler Blower Impeller - CANCELLED AD/BELL 206/104 Amdt 1\n\nAirframe Fuel Filter Assembly AD/BELL 206/105 Amdt 1\n\nFloat Inflation Valve AD/BELL 206/106\n\nMain Rotor Mast AD/BELL 206/107\n\nStabilizer Identification AD/BELL 206/108\n\nTail Boom Skin AD/BELL 206/109 Amdt 3\n\nTail Rotor Pitch Links AD/BELL 206/110\n\nEngine Fuel Valve Electrical Connectors P/N MS3456W14S-5S AD/BELL 206/111 Amdt 2\n\nTail Rotor Yoke AD/BELL 206/112 Amdt 1\n\nWedge (Bulged) Windows in Single Latch Doors AD/BELL 206/113\n\nFuel System Flow Switches AD/BELL 206/114\n\nHorizontal Stabilizer P/N 206-023-119-151 AD/BELL 206/115\n\nBogus Tail Rotor Hub Assembly P/N 206-011-810-015 and Tail Rotor Yoke P/N AD/BELL 206/116 Amdt 1\n\nBogus Main Rotor Blades AD/BELL 206/117 Amdt 1\n\nBogus Tension Torsion Straps AD/BELL 206/118\n\nMain Rotor Flight Control System Bolts AD/BELL 206/119 Amdt 1\n\nBogus Pressure Gauge Emergency Floats P/N 212-073-905-1 AD/BELL 206/120\n\nTail Rotor Blade Assembly AD/BELL 206/121\n\nTail Rotor Blade AD/BELL 206/122\n\nEmergency Float Bags AD/BELL 206/123 Amdt 1\n\nDriveshaft Seal AD/BELL 206/124 Amdt 1\n\nMain Transmission Sungear AD/BELL 206/125 Amdt 2\n\nSwashplate Support Assembly - CANCELLED AD/BELL 206/126 Amdt 2\n\nMain Rotor Hub Trunnion Master Spline AD/BELL 206/127 Amdt 1\n\nMain Rotor Blade and Trim Tab AD/BELL 206/128\n\nMain Landing Gear Cross Tubes AD/BELL 206/129 Amdt 1\n\nMain Landing Gear Cross Tubes (ronautical Accessories Inc.) AD/BELL 206/130 Amdt 1\n\nVertical Fin - External Doubler AD/BELL 206/131\n\nTail Rotor Driveshaft Bearing Support Brackets AD/BELL 206/132\n\nMain Rotor Pillow Block Retention Bolts - CANCELLED AD/BELL 206/133\n\nFuel Valve Switch Guard AD/BELL 206/134\n\nMain Rotor Trunnion and Mast AD/BELL 206/135\n\nHydraulic Servo Actuator Shoulder Bolt AD/BELL 206/136\n\nFuel Drain Tubes AD/BELL 206/137\n\n  \nTurbine Outlet Temperature Indicator AD/BELL 206/138\n\nMain Rotor Blades Part Number 206-010-200-33 AD/BELL 206/139\n\nCollective Idler Link and Collective Lever AD/BELL 206/140\n\nHydraulic Relief Valves AD/BELL 206/141\n\nTailboom Assembly AD/BELL 206/142\n\nTail Boom Skin AD/BELL 206/143 Amdt 3\n\nRotor Mast Collective Lever AD/BELL 206/144\n\nTail Rotor Blade Part Number 206-016-201 AD/BELL 206/145\n\nEngine RPM Sensor - Limitations AD/BELL 206/146\n\nFuel System AD/BELL 206/147\n\nChip Detector Assembly AD/BELL 206/148 Amdt 1\n\nMagnetic Brakes AD/BELL 206/149\n\nEngine to Transmission Shaft AD/BELL 206/150\n\nMemcor Truohm Magnetic Brake AD/BELL 206/151\n\nRescue Hoist AD/BELL 206/152\n\nTail Rotor Blade Trailing Edge Skin Cracks AD/BELL 206/153 Amdt 2\n\nFreewheel Aft Bearing Cap AD/BELL 206/154","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"This instrument maintains identical scope to the original Airworthiness Directives. It is purely a remaking exercise with explicit confirmation that each directive is reproduced 'in exactly the same form.' No expansion of regulatory scope occurs."},"complexity_factors":["Simple procedural mechanism: straightforward revocation and remaking power under a single regulation (subregulation 39.001(1))","No substantive legal changes: the document explicitly states directives are remade 'in exactly the same form'","Extensive tabular schedule: 154 separate directives listed in Schedule 1, but this is data volume rather than legal complexity","Cross-references to external documents: each AD/BELL 206/XX reference points to separate technical instruments not reproduced in full","Minimal conditional logic: no 'if-then' provisions, exceptions, or nested definitions within the instrument itself","No interpretation section: no defined terms requiring legal construction","Straightforward delegation structure: single delegate acting under clear statutory authority"],"plain_english_summary":"This CASA instrument revokes and immediately remakes 154 Airworthiness Directives affecting Bell 206/Agusta Bell 206 helicopters in Australia. It’s an administrative housekeeping measure that preserves the existing, legally binding safety requirements (no technical changes) so operators, owners and maintenance organisations remain obliged to comply and there’s no legal gap in mandatory inspections and repairs."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument does not broaden or narrow the substantive regulatory obligations. It revokes the listed Airworthiness Directives and re-makes them \"in exactly the same form as\" the latest published editions. That indicates an administrative re-issuance rather than an expansion of scope. Practical effect: the legal form of the ADs is refreshed, but the substantive requirements and the population subject to them remain the same."},"complexity_factors":["Instrument's action is single-step (revoke and re-make) which is simple procedurally","Large Schedule listing: AD/BELL 206/1 through AD/BELL 206/154 (154 numbered AD entries)","Many entries include amendment markers (e.g. 'Amdt 1', 'Amdt 2', etc.), requiring attention to amendment history","Multiple entries marked 'CANCELLED' or noting 'Superseded by...', creating cross-version references to track","No new substantive regulatory text in this instrument (re-made ADs purportedly identical to latest published editions), reducing substantive complexity","Reference to a specific enabling subregulation (subregulation 39.001(1)) but otherwise minimal statutory cross-references"],"plain_english_summary":"**What this instrument does (mechanically)\n\n- The Civil Aviation Safety Authority (CASA), through its delegate, formally revokes a long list of previously issued Airworthiness Directives (ADs) that apply to Bell Helicopter Textron Canada (BHTC) / Agusta Bell 206 series helicopters, and immediately re-issues each of those ADs as separate legal instruments.\n- The re-issued ADs are stated to be \"in exactly the same form as appears in the latest published edition of the Directive.\" The delegate relies on subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 to do this.\n\n**Who it affects\n\n- Owners and operators of Bell/Agusta Bell 206 series helicopters (they are subject to the listed ADs).\n- Maintenance organisations, engineers and inspectors who must carry out inspections, replacements, modifications and other actions mandated by those ADs.\n- CASA (administration and enforcement functions) and the CASA delegate who exercises the power to revoke and re-make ADs.\n\n**Why it matters (practical effect)\n\n- Airworthiness Directives are mandatory safety instructions about inspections, replacements, life limits and modifications for specific parts and systems. Re-making them as separate instruments preserves their legal force and keeps the requirements enforceable.\n- Because the re-made ADs are said to be identical to the latest published versions, there is no substantive change to the safety requirements or compliance obligations for operators — they must continue to follow the same inspections and corrective actions that the ADs mandate.\n\n**Source's stated purpose and testing that claim against practical effects\n\n- The instrument explicitly revokes and re-makes listed ADs and states the re-made ADs match the latest published editions. That indicates the primary purpose is administrative: ensuring the ADs exist as separate, up-to-date legal instruments under the CASA delegate's authority (subregulation 39.001(1)).\n\n- Costs and incentives: Operators and maintenance providers do not face new or different technical requirements under this instrument if the text truly is identical; their direct compliance costs remain the same as before. CASA incurs administrative costs to revoke and re-issue instruments and to maintain legal records.\n\n- Trade-offs and implementation risk: Re-issuing unchanged ADs reduces legal uncertainty about instrument form or status, but it creates a short administrative workload. If any procedural step is missed (for example, attachment of the correct AD text), there is a risk of temporary ambiguity about the active legal instrument; the instrument attempts to avoid that by stating the re-made ADs match the latest published editions.\n\n- Compliance burden and private choice: The instrument does not change behaviour choices available to operators — it continues mandatory maintenance and inspection obligations already imposed by the ADs. It does not change market entry, ownership, or contracting freedoms except insofar as AD compliance always conditions how owners contract for maintenance.\n\n- Concentrated benefits and costs: The immediate administrative benefit accrues to CASA (clear legal form and record-keeping). The costs are modest and concentrated on CASA's administrative function; compliance costs remain concentrated on operators already subject to the ADs.\n\n**Notable structural details in the Schedule (how the list operates)\n\n- The Schedule lists AD/BELL 206 series ADs by title and number (for example AD/BELL 206/1 through AD/BELL 206/154). Many entries show amendment numbers (\"Amdt x\"), and some entries are marked \"CANCELLED\" or note they are \"Superseded by\" another AD. That preserves the existing layered history of directives, amendments and cancellations.\n\n**Who pays, who decides, and what behaviour changes\n\n- Who pays: Operators and maintenance organisations continue to bear the costs of complying with each AD (inspections, parts replacement, labour). CASA bears the administrative cost of revocation/re-issuance.\n- Who decides: The CASA delegate (here named) uses regulatory power under subregulation 39.001(1) to revoke and re-make the listed ADs.\n- Behaviour changes: There are no new technical compliance actions imposed by this instrument itself; affected parties should continue to follow the substantive requirements of each AD as re-issued.\n\n**Bottom line\n\n- This instrument is administrative housekeeping: it removes the listed ADs from their previous legal form and re-issues them as separate instruments in the same wording as the latest published editions, preserving the existing mandatory safety obligations for Bell 206-series helicopters without changing their substantive scope.**"},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-canada-bhtc-206-and-ag","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-canada-bhtc-206-and-ag/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-canada-bhtc-206-and-ag/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-canada-bhtc-206-and-ag/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-canada-bhtc-206-and-ag/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-canada-bhtc-206-and-ag/documents"}}