{"id":"F2006B04340","name":"AD/BELL 204/37 - Swashplate Support Assembly","slug":"ad-bell-204-37-swashplate-support-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44155,"registerId":"commonwealth-F2006B04340-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/BELL 204/37 Swashplate Support Assemb","sectionType":"part","heading":"AD/BELL 204/37 Swashplate Support Assembly 8/2000","content":"# AD/BELL 204/37 Swashplate Support Assembly 8/2000\n\nApplicability: Model 204B with swashplate P/N204-011-404-125 installed.\n\nRequirement: Action in accordance with the technical requirements of FAA AD 92-07-08.\n\nCompliance: Before further flight after the effective date of this directive, and before installation of a P/N204-011-404-125 swashplate.\n\nThis Airworthiness Directive becomes effective on 10 August 2000.\n\nBackground: Unapproved bushings with ODs well in excess of the permitted tolerance have been found installed in the outboard gimbal ring support lug and shoulder. It also follows the re-introduction of the AD Series after sixteen years.\n\n![](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 6 July 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 12 July 2000.","sortOrder":1}],"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":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific unsafe condition in a specific aircraft model with a specific part. The document references the 're-introduction of the AD Series after sixteen years,' but this appears to be administrative context about CASA's procedural history rather than an expansion of substantive scope. The directive remains tightly focused on the swashplate bushing defect."},"complexity_factors":["Very short document — approximately 200 words of substantive text","Only 1 defined term implicitly referenced (the part number P/N204-011-404-125)","Single cross-reference to external document (FAA AD 92-07-08) — actual technical requirements are contained there, not here","No nested exceptions or conditional logic — straightforward 'before further flight' compliance trigger","Simple binary applicability test: Model 204B with specific part installed","No internal definitions section or interpretation provisions"],"plain_english_summary":"This AD mandates immediate inspection and repair of the swashplate support assembly (P/N 204-011-404-125) on Bell Model 204B helicopters because unapproved, oversized bushings were found in the outboard gimbal ring support lug and shoulder. Owners, operators and maintenance engineers must comply with FAA AD 92-07-08 before the next flight or before installing that swashplate. The defect risks swashplate failure and loss of control — and marks the return of CASA’s AD Series."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains narrowly targeted to Model 204B helicopters with the specified swashplate part number and requires actions identical to FAA AD 92-07-08. The instrument enforces a corrective action for an identified unsafe condition and does not expand applicability beyond that stated."},"complexity_factors":["Narrow applicability — single helicopter model and specific part number (P/N204-011-404-125) reduces breadth of compliance.","Cross-reference to external instrument (FAA AD 92-07-08) requires operators to obtain and apply another authority's technical instructions.","Immediate compliance timing — 'before further flight' creates operational disruption and urgent maintenance scheduling.","Technical diagnostics and corrective work likely require skilled maintenance resources and traceability of bushings/parts.","Record-keeping and proof of compliance needed for continued airworthiness oversight.","Issued under CAR 1998 subregulation 39.1(1) by CASA delegate — administrative discretion in issuing and enforcing the AD."],"plain_english_summary":"This directive requires owners/operators of Bell Model 204B helicopters fitted with swashplate P/N204-011-404-125 to follow the technical actions set out in FAA AD 92-07-08 before the next flight or before installing that swashplate. It was issued after oversized, unapproved bushings were found in the swashplate gimbal support. Who pays: the aircraft owner/operator for inspections, repairs or part replacement. The measure is a targeted safety correction to remove an identified unsafe condition."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-204-37-swashplate-support-assembly","history":"/api/acts/ad-bell-204-37-swashplate-support-assembly/history","analysis":"/api/acts/ad-bell-204-37-swashplate-support-assembly/analysis","conflicts":"/api/acts/ad-bell-204-37-swashplate-support-assembly/conflicts","importantCases":"/api/acts/ad-bell-204-37-swashplate-support-assembly/important-cases","documents":"/api/acts/ad-bell-204-37-swashplate-support-assembly/documents"}}