{"id":"F2006B04331","name":"AD/BELL 204/28 - Float Kit and Cross Tubes","slug":"ad-bell-204-28-float-kit-and-cross-tubes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44146,"registerId":"commonwealth-F2006B04331-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 204/28 Float Kit and Cross Tubes","sectionType":"part","heading":"AD/BELL 204/28 Float Kit and Cross Tubes 8/2000","content":"# AD/BELL 204/28 Float Kit and Cross Tubes 8/2000\n\nApplicability: Model 204B with float kit P/N 204-706-053 or P/N 205-706-050 installed. Requirement: Comply with the technical requirements of FAA AD 69-15-7.\n\nCompliance: From the effective date of this Directive.\n\nThis Airworthiness Directive becomes effective on 10 August 2000.\n\nBackground: This directive is raised to prevent possible failure of the aft cross tube due to fatigue.\n\nIt 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":"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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific fatigue failure risk in a specific helicopter model's float kit. The reference to 're-introduction of the AD Series after sixteen years' is procedural context about the administrative system, not an expansion of the directive's substantive scope."},"complexity_factors":["Very short document (under 300 words)","Only 2 defined part numbers in applicability section","Single requirement: comply with external FAA directive","No nested conditions or exceptions","No cross-references to other Australian legislation beyond enabling regulation (CAR 1998 subreg 39.1(1))","Simple linear structure: Applicability → Requirement → Compliance → Background"],"plain_english_summary":"This AD requires owners/operators of Bell Model 204B helicopters fitted with emergency float kits (P/N 204-706-053 or 205-706-050) to comply with FAA AD 69-15-7—inspecting and remedying fatigue cracks in the rear cross tube of the float assembly.  \n\nEffective 10 Aug 2000, it prevents float failure during water landings (which could cause sinking and fatalities) and signals the restart of Australia’s airworthiness directive system."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive adopts the FAA AD technical requirements for a clearly specified subset of Bell 204B aircraft to address aft cross tube fatigue. Nothing in the text expands or narrows the technical remedy beyond adopting FAA AD 69-15-7; the scope remains the same as the stated safety purpose and the FAA cross-reference."},"complexity_factors":["Narrow applicability: only Model 204B with two specific float kit part numbers (P/N 204-706-053 or 205-706-050) — limits affected population but requires correct parts identification (Applicability).","Cross-reference to external instrument: compliance depends on FAA AD 69-15-7 rather than containing technical procedures, requiring operators to obtain and interpret that AD (Requirement).","Safety-critical technical work: the subject (aft cross tube fatigue) implies inspections/repairs with potential engineering/maintenance complexity and aircraft downtime (Background / Requirement).","Immediate compliance timing: becomes effective on 10 August 2000, so owners/operators must act from that date (Compliance / Effective date).","Regulatory authority and discretion: issued under CAR 1998 subreg 39.1(1) by CASA delegate, placing enforcement and interpretation responsibilities with the regulator (preamble).","Administrative history note: re-introduction of the AD Series after 16 years may affect recordkeeping and legacy compliance tracking (Background)."],"plain_english_summary":"This Directive requires operators of Bell 204B helicopters fitted with float kit P/N 204-706-053 or P/N 205-706-050 to carry out the work set out in FAA AD 69-15-7, effective immediately from 10 August 2000. The stated aim is to prevent aft cross tube failure from fatigue. Compliance is mandatory under CAR 1998 subreg 39.1(1); the Directive adopts the FAA technical requirements rather than restating them, so operators must consult FAA AD 69-15-7 for the specific inspections/repairs."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-204-28-float-kit-and-cross-tubes","history":"/api/acts/ad-bell-204-28-float-kit-and-cross-tubes/history","analysis":"/api/acts/ad-bell-204-28-float-kit-and-cross-tubes/analysis","conflicts":"/api/acts/ad-bell-204-28-float-kit-and-cross-tubes/conflicts","importantCases":"/api/acts/ad-bell-204-28-float-kit-and-cross-tubes/important-cases","documents":"/api/acts/ad-bell-204-28-float-kit-and-cross-tubes/documents"}}