{"id":"F2006B07761","name":"Airworthiness Directives 2004 - Revocation and Remaking - Bell Helicopter Textron 47 (All Variants) Series Helicopters","slug":"airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-47-all-variants-series","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50515,"registerId":"commonwealth-F2006B07761-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 47 (All Variants) 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 47 (All Variants) Series Helicopters\n\nAD Name AD Number\n\nSynchronized Elevator Spar AD/BELL 47/1 Amdt 1\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/2\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/3\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/4\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/5\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/6\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/7\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/8\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/9\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/10\n\nCANCELLED AD/BELL 47/11 Amdt 2\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/12\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/13\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/14\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/15\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/16\n\nTail Rotor Pitch Change Bearings - Inspection and Life Limitations AD/BELL 47/17 Amdt 1\n\nCANCELLED AD/BELL 47/18\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/19\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/20\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/21\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/22\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/23\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/24\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/25\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/26\n\nRotor Counterweight Bracket P/N 47-110-287-9 - Life Limitation - AD/BELL 47/27\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/28\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/29\n\n  \nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/30\n\nLateral Cyclic Torque Tube Safety Washers AD/BELL 47/31\n\nMain Rotor Mast Thrust Bearing AD/BELL 47/32 Amdt 2\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/33\n\nStewart Warner 439212 Fuel Quantity Gauge Unit - Modification or AD/BELL 47/34\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/35\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/36\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/37\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/38\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/39\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/40\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/41\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/42\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/43\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/44\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/45\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/46\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/47\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/48\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/49\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/50\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/51\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/52\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/53\n\nCANCELLED - Superseded by AD/BELL 47/86 - CANCELLED AD/BELL 47/54\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/55\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/56\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/57\n\nDrag Brace Clevis AD/BELL 47/58 Amdt 1\n\nMain Rotor Blades AD/BELL 47/59\n\nTail Rotor Blades - CANCELLED AD/BELL 47/60 Amdt 7\n\nRetirement Life - Critical Components AD/BELL 47/61 Amdt 23\n\nCentre Fuselage Frame Assembly AD/BELL 47/62 Amdt 2\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/63\n\nCANCELLED - Superseded by AD/BELL 47/86 Amdt1 - CANCELLED AD/BELL 47/64\n\nDuplex Pitch Change Bearing - Inspection and Retirement AD/BELL 47/65\n\n  \nStabilizer Bar Tubes and Assembly AD/BELL 47/66 Amdt 4\n\nEngine Oil System Flexible Lines AD/BELL 47/67 Amdt 1\n\nControl Tubes AD/BELL 47/68\n\nTail Rotor Control Pedal Assembly Interference Bracket AD/BELL 47/69 Amdt 1\n\nCANCELLED AD/BELL 47/70 Amdt 1\n\nTail Rotor Blades AD/BELL 47/71\n\nMain Rotor Hub Core P/N 47-120-117-1 AD/BELL 47/72 Amdt 2\n\nMain Rotor Blade Grip - CANCELLED AD/BELL 47/73\n\nCANCELLED AD/BELL 47/74\n\nControl Tubes AD/BELL 47/75 Amdt 2\n\nCANCELLED AD/BELL 47/76\n\nTail Rotor Hub Bolts AD/BELL 47/77 Amdt 1\n\nMain Rotor Gimbal Rings - Retirement Life AD/BELL 47/78\n\nTail Rotor Gearbox AD/BELL 47/79 Amdt 1\n\nMain Rotor Head Counterweight Rod AD/BELL 47/80 Amdt 3\n\nTail Rotor Pitch Links AD/BELL 47/81 Amdt 2\n\nTail Rotor Drive and Fan Drive Bearings AD/BELL 47/82 Amdt 1\n\nInspection of Lower Gearcase Oil Jets - Soloy Gas Turbine Conversion - AD/BELL 47/83 Amdt 1\n\nFrame Stiffening Assembly 660-2001-1 - Inspection AD/BELL 47/84\n\nEngine Mount Strut Rod Ends - Replacement AD/BELL 47/85\n\nConsolidation of Certain Early Airworthiness Directives - Older Model Bell 47 AD/BELL 47/86 Amdt 2\n\nStabiliser Bar Damper Frame Clamp AD/BELL 47/87 Amdt 1\n\nAuxiliary Fuel System - Modification AD/BELL 47/88\n\nFlight Control Systems - Hydraulic Servo to Swashplate Control Plate AD/BELL 47/89\n\nHydraulic Servo Cylinders AD/BELL 47/90\n\nTail Rotor Blade Assembly P/N 47-642-117-1 - Replacement AD/BELL 47/91\n\nMain Rotor Blade Grips AD/BELL 47/92 Amdt 5\n\nTail Rotor Blade Yoke - CANCELLED AD/BELL 47/93\n\nBogus Parts - Main Rotor Grip P/N 47-120-252-11 AD/BELL 47/94\n\nBogus Main Rotor Blades AD/BELL 47/95\n\nBogus Main Rotor Grip P/N 47-120-252-11 AD/BELL 47/96\n\nMain Rotor Flight Control System Bolts AD/BELL 47/97\n\nMain Rotor Grip AD/BELL 47/98\n\nTail Rotor Blade Skin Material AD/BELL 47/99\n\nStabiliser Bar Damper Link Assembly AD/BELL 47/100","sortOrder":0}],"analysis":{"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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope is unchanged. The instrument merely revokes the listed ADs and remakes them in identical form; it does not alter the substantive content or impose new obligations. The Schedule notes multiple cancellations and supersessions, so practical applicability depends on which re‑made ADs remain active, but this instrument does not change their substance."},"complexity_factors":["Administrative action only: revocation and re‑making of ADs in identical form (note states ‘exactly the same form’), so no substantive rule changes.","Large schedule: many individually listed ADs, including amendment numbers and ‘CANCELLED’/‘Superseded’ annotations, increasing record‑keeping and traceability needs for operators.","Cross‑references and supersessions: several entries note they are superseded by AD/BELL 47/86 (and amendments), requiring readers to resolve which ADs are operative.","Legal basis: exercise of delegated power under subregulation 39.001(1) CASR 1998 — a single statutory reference governs the instrument’s validity.","Compliance burden: operators must consult the separately re‑made AD instruments (attached) to determine ongoing inspection/maintenance obligations; the instrument itself does not restate technical requirements."],"plain_english_summary":"This instrument revokes a long list of previously issued Airworthiness Directives (ADs) for Bell Helicopter Textron 47 series helicopters and re‑issues each listed AD as a separate instrument in the same form, under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998. It affects owners, operators and maintenance organisations of Bell 47 helicopters because those ADs set mandatory inspection, modification and retirement‑life requirements that must be complied with for continued airworthiness."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains the exact same scope as the original Airworthiness Directives. It is purely a procedural remaking exercise with no expansion or alteration of regulatory requirements."},"complexity_factors":["Single, straightforward administrative action with no substantive legal changes","No defined terms or interpretation section","No conditional logic or exceptions","Structure is purely a schedule/table listing items to be revoked and remade","Cross-references are limited to listing AD numbers being processed","Content is almost entirely a list of cancelled/superseded items rather than operative provisions"],"plain_english_summary":"This December 2004 CASA instrument cancels 86 existing Airworthiness Directives for Bell 47 helicopters and reissues them as separate, standalone legal instruments in the same form they previously had. It affects Bell 47 owners, operators and maintenance engineers by making mandatory ADs easier to find, reference and update as part of CASA’s broader reorganisation of Australia’s aviation safety rules."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-47-all-variants-series","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-47-all-variants-series/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-47-all-variants-series/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-47-all-variants-series/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-47-all-variants-series/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-bell-helicopter-textron-47-all-variants-series/documents"}}