{"id":"F2006B04335","name":"AD/BELL 204/32 - Tail Rotor Grip","slug":"ad-bell-204-32-tail-rotor-grip","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44150,"registerId":"commonwealth-F2006B04335-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 204/32 Tail Rotor Grip 8/2000","sectionType":"part","heading":"AD/BELL 204/32 Tail Rotor Grip 8/2000","content":"# AD/BELL 204/32 Tail Rotor Grip 8/2000\n\nApplicability: Model 204B with tail rotor grip P/N 204-011-728-1, \\-13, or \\-19 installed. Requirement: Remove from service any of the applicable tail rotor grips:\n\n    with more than 300 hours time in service, or\n\n    b. any where total time in service can not be established.\n\nNote: FAA AD 88-25-05 refers.\n\nCompliance: Before further flight after the effective date of this directive.\n\nThis Airworthiness Directive becomes effective on 10 August 2000.\n\nBackground: This directive is raised to prevent failure of certain tail rotor grips. 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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive's scope aligns with its stated purpose to prevent tail rotor grip failure: it targets specific parts on a single model and mandates removal based on clear service-time criteria (Applicability; Requirement; Background). There is no widening of applicability or additional obligations beyond removal before further flight (Compliance)."},"complexity_factors":["Narrow applicability: limited to Model 204B with specific tail rotor grip part numbers (Applicability).","Simple, binary removal rule: remove grips with >300 hours or unknown total time (Requirement).","Immediate operational impact: compliance required 'before further flight', implying grounding until action is taken (Compliance).","Record-keeping consequence: unknown time-in-service triggers mandatory removal, creating an incentive to maintain time records (Requirement).","Regulatory provenance: cross-reference to FAA AD 88-25-05 may affect audit or parts-history checks (Note).","Authority and effective timing are explicit: issued by CASA delegate, effective date 10 August 2000 (Delegate/Effective date).","Implementation cost implied: removal/replacement and maintenance labour will be borne by owners/operators (Requirement & Compliance)."],"plain_english_summary":"This directive orders owners/operators of Bell Model 204B helicopters fitted with tail rotor grip P/N 204-011-728-1, -13 or -19 to remove those grips from service if they have more than 300 hours time-in-service, or if their total time cannot be established. Compliance is required before the aircraft may fly again. The stated purpose is to prevent failure of the specified tail rotor grips (Background)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow safety directive targeting a specific mechanical defect in a specific helicopter model. The scope remains tightly focused on the original safety purpose — preventing tail rotor grip failures. The mention of reintroducing the AD Series after 16 years is administrative context, not a scope expansion."},"complexity_factors":["Very short document (under 300 words)","Only 3 defined part numbers in applicability section","Simple binary condition for compliance (hours >300 OR unknown hours)","Single mandatory action with no exceptions or alternatives","No cross-references to other legislation (only a non-binding note referencing FAA AD 88-25-05)","Clear, immediate compliance deadline (before further flight)"],"plain_english_summary":"This CASA Airworthiness Directive orders immediate removal from service of Bell 204B tail-rotor grips P/N 204-011-728-1, -13, or -19 if they have over 300 flight hours or their hours are unknown/unverifiable. It applies to all owners/operators of affected helicopters and must be complied with before the helicopter next flies after 10 August 2000.\n\nThe action prevents grip failure that could cause loss of yaw control and a possible crash."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-204-32-tail-rotor-grip","history":"/api/acts/ad-bell-204-32-tail-rotor-grip/history","analysis":"/api/acts/ad-bell-204-32-tail-rotor-grip/analysis","conflicts":"/api/acts/ad-bell-204-32-tail-rotor-grip/conflicts","importantCases":"/api/acts/ad-bell-204-32-tail-rotor-grip/important-cases","documents":"/api/acts/ad-bell-204-32-tail-rotor-grip/documents"}}