{"id":"F2006B08618","name":"AD/CL-600/55 - Flap Vane System","slug":"ad-cl-600-55-flap-vane-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51570,"registerId":"commonwealth-F2006B08618-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.001.png)\n\n![](image.001.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.\n\nBombardier (Canadair) CL-600 (Challenger) Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/CL-600/55 Flap Vane System 7/2002","sectionType":"part","heading":"AD/CL-600/55 Flap Vane System 7/2002","content":"# AD/CL-600/55 Flap Vane System 7/2002\n\nApplicability: Model CL-600-2B16 (CL-604) aircraft, serial numbers 5301 through 5374. Requirement: Action in accordance with the technical requirements of Transport Canada AD CF-\n\n2000-18.\n\nNote: Bombardier Alert Service Bulletin A604-27-006, dated 18 April 2000, refers.\n\nCompliance: Before 11 August 2002, unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 11 July 2002.\n\nBackground: Corrosion has been detected inside the bore of the inboard flap vane and actuator beam assemblies. As well, non-compliant gaps have been detected between certain vane brackets and the adjacent skin on the inboard flaps. These conditions could compromise the structural integrity of the flap system.\n\n![Signature of David Alan Villiers Delegate of the Civil Aviation Safety Authority](image.002.jpeg)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 30 May 2002\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 19 June 2002.","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 is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of correcting the identified unsafe condition in the flap vane system."},"complexity_factors":["Very short document (under 300 words)","Only 3 substantive sections: Applicability, Requirement, and Compliance","Single cross-reference to external technical document (Transport Canada AD)","No defined terms section — uses plain aviation terminology","Simple unconditional requirement with single deadline","No nested exceptions or conditional logic"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of 74 Bombardier Challenger 604 jets (serials 5301–5374) to inspect and repair the inboard flap vane and actuator beam assemblies for corrosion and incorrect vane‑to‑skin gaps, using Transport Canada AD CF‑2000‑18 and Bombardier Alert Service Bulletin A604‑27‑006. Work must be done before 11 August 2002. It affects Australian operators and maintenance organisations and prevents flap failures during critical takeoff and landing phases."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD adopts the technical requirements of Transport Canada AD CF-2000-18 for the same aeroplane model and serial range (Applicability; Requirement) and sets a compliance deadline (Compliance). The text does not expand applicability or add new mandatory measures beyond those referenced."},"complexity_factors":["Narrow, well-defined applicability to specific serial numbers (Applicability).","Relies on external technical documents for the detailed work scope (Requirement references Transport Canada AD CF-2000-18 and Bombardier Alert Service Bulletin A604-27-006).","Safety-critical inspections and potential structural repairs increase technical and operational burden on maintenance providers (Background: corrosion and non-compliant gaps).","Firm compliance deadline creates scheduling and cost pressure for operators (Compliance: before 11 August 2002).","Issued by CASA delegate under delegated authority, but the AD itself prescribes mandatory action with little operational discretion in the text (preamble and Requirement)."],"plain_english_summary":"This Airworthiness Directive requires operators of Bombardier CL-600-2B16 (CL‑604) aircraft, serial numbers 5301–5374, to inspect and repair the inboard flap vane and actuator beam assemblies following Transport Canada AD CF‑2000‑18 and Bombardier Alert Service Bulletin A604‑27‑006. It responds to detected corrosion inside vane bores and gaps at vane brackets that could impair flap structural integrity. Operators must complete the specified actions by 11 August 2002; the costs and repair responsibility rest with aircraft owners/operators."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cl-600-55-flap-vane-system","history":"/api/acts/ad-cl-600-55-flap-vane-system/history","analysis":"/api/acts/ad-cl-600-55-flap-vane-system/analysis","conflicts":"/api/acts/ad-cl-600-55-flap-vane-system/conflicts","importantCases":"/api/acts/ad-cl-600-55-flap-vane-system/important-cases","documents":"/api/acts/ad-cl-600-55-flap-vane-system/documents"}}