{"id":"F2006B07837","name":"Airworthiness Directives 2004 - Revocation and Remaking - DHC-2 (Beaver) Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-dhc-2-beaver-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50763,"registerId":"commonwealth-F2006B07837-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 - DHC-2 (Beaver) Series Aeroplanes","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\nDHC-2 (Beaver) Series Aeroplanes\n\nAD Name AD Number\n\nFuel Tanks Inspection and No Smoking Placards AD/DHC-2/1\n\nHydraulic Control Unit - Selector Lever Hub Inspection AD/DHC-2/2\n\nRudder Pedal Assembly - Modification AD/DHC-2/3\n\nUndercarriage Legs - Anti-Corrosion Treatment AD/DHC-2/4\n\nCANCELLED AD/DHC-2/5\n\nSafety Harness Inertia Reel - Installation AD/DHC-2/6\n\nAileron Differential Mount - Modification AD/DHC-2/7\n\nBeaver Wing - Prevention of Flutter - Inspection AD/DHC-2/8\n\nSuperseded by AD/DHC-2/10 - CANCELLED AD/DHC-2/9\n\nLift Strut and Lift Strut Attachment Fittings AD/DHC-2/10 Amdt 8\n\nAileron Hinge Arm - Inspection AD/DHC-2/11\n\nLeft and Right Wing Intermediate Rib Assembly Stations 15.50, 29.00 and AD/DHC-2/12 Amdt 2\n\nWing - Inspection and Modification AD/DHC-2/13\n\nMain Undercarriage Lower Forward Attachment - Modification AD/DHC-2/14\n\nMain Undercarriage Lower Forward Bolt Attachment - Inspection AD/DHC-2/15 Amdt 1\n\nAileron Centre Hinge Bracket - Inspection AD/DHC-2/16\n\nFin Rear Attachment - Inspection AD/DHC-2/17\n\nTailplane Rear Spar - Inspection and Modification AD/DHC-2/18\n\nAileron Control Cables - Inspection AD/DHC-2/19 Amdt 1\n\nControl Column Torque Tubes - Inspection AD/DHC-2/20\n\nFlight Controls, Elevator Root Rib - Inspection AD/DHC-2/21\n\nAileron Centre Hinge Bracket AD/DHC-2/22 Amdt 1\n\nStabilising Fins AD/DHC-2/23 Amdt 1\n\nWing Strut Assembly Lower Attachment Fittings AD/DHC-2/24 Amdt 3\n\nHorizontal Stabiliser Attachment Brackets AD/DHC-2/25\n\nPassenger Seats and Passenger Seat Attachment Fittings AD/DHC-2/26\n\nHorizontal Stabiliser Front Spar AD/DHC-2/27 Amdt 2\n\nWing Strut Lower Steel End-Fitting AD/DHC-2/28\n\nElevator Mass Balance Weight AD/DHC-2/29\n\nFront Fuselage Struts at Windshield AD/DHC-2/30 Amdt 1\n\nFuselage Station 228 Bulkhead AD/DHC-2/31\n\nMagneto Cannon Plug AD/DHC-2/32\n\nExhaust Collector Ring Segments AD/DHC-2/33","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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope not changed. The instrument expressly revokes the listed ADs and re‑makes each in exactly the same form as the latest published edition (see Note); it is an administrative re‑issuance that leaves substantive obligations intact."},"complexity_factors":["Procedural administrative action: revocation and re‑making of existing ADs rather than substantive amendment.","Legal authority cited: operation under subregulation 39.001(1) (delegated CASA power).","Volume and bookkeeping: Schedule lists many ADs, some with amendments or marked cancelled, increasing tracking burden for operators and regulators.","Attachments reproduced in identical form (Note), so substantive legal obligations remain unchanged but must be tracked as separate instruments."],"plain_english_summary":"This instrument revokes a list of Airworthiness Directives (ADs) that apply to DHC‑2 (Beaver) series aeroplanes and re‑issues each AD as a separate, identical instrument under CASA subregulation 39.001(1). It affects owners, operators and maintenance organisations of DHC‑2 aircraft because the re‑made ADs continue to impose mandatory inspections, modifications and placard requirements; those parties bear the compliance costs and CASA (through its delegate) remains the decision‑maker enforcing the same obligations."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument maintains identical scope to the original ADs. It is purely a machinery provision — changing the legislative format without altering the substantive safety requirements. The note explicitly confirms each AD is being remade 'in exactly the same form as appears in the latest published edition.'"},"complexity_factors":["Single operative provision with straightforward binary action (revoke and remake)","No defined terms section — relies entirely on external references to aircraft technical manuals and the Civil Aviation Safety Regulations 1998","Tabular schedule format (Schedule 1) listing 33 items with minimal descriptive text","No conditional logic, exceptions, or nested provisions","Cross-references limited to subregulation 39.001(1) of the CASR 1998 and the attached ADs themselves","Substantive technical content contained in separate, attached documents not reproduced in the legislative text"],"plain_english_summary":"This instrument revokes all existing Airworthiness Directives for the DHC-2 Beaver and reissues them as 33 separate, standalone legal ADs under current regulations. It affects DHC-2 owners/operators, maintenance organisations, and CASA.\n\nIt’s a legal housekeeping exercise: the safety requirements (inspections, modifications, corrosion control, etc.) stay the same, but the ADs are modernised as new instruments. Two ADs (AD/DHC-2/5 and AD/DHC-2/9) are marked cancelled and not remade."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dhc-2-beaver-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dhc-2-beaver-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dhc-2-beaver-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dhc-2-beaver-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dhc-2-beaver-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-dhc-2-beaver-series-aeroplanes/documents"}}