{"id":"F2006B10958","name":"AD/JETSTREAM/89 - Main Landing Gear Radius Rod","slug":"ad-jetstream-89-main-landing-gear-radius-rod","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56526,"registerId":"commonwealth-F2006B10958-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/JETSTREAM/89 Main Landing Gear Radius","sectionType":"part","heading":"AD/JETSTREAM/89 Main Landing Gear Radius Rod 8/2000","content":"# AD/JETSTREAM/89 Main Landing Gear Radius Rod 8/2000\n\nApplicability: All Jetstream 3100 and 3200 Series aircraft with radius rod part numbers 1847 and 1862, all suffixes, installed.\n\nRequirement: Inspect in accordance with BAe Systems Mandatory Service Bulletin 32-JA 991140.\n\nNote: UK CAA AD 002-04-2000 refers.\n\nCompliance: As specified in the Requirement document.\n\nThis Airworthiness Directive becomes effective on 10 August 2000.\n\nBackground: The manufacturer received reports of cracks in main landing gear radius rods on in- service aircraft. In one case, total failure of the radius rod had occurred.\n\n![Signature of Bernard Malcolm Hole Delegate of the Civil Aviation Safety Authority](image.003.png)  \n\nBernard Malcolm Hole\n\nDelegate of the Civil Aviation Safety Authority 22 June 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 mechanical defect in a specific aircraft part. There is no evidence of scope creep; it targets exactly the safety issue identified in the background (cracked radius rods) and applies only to the affected aircraft models."},"complexity_factors":["Very short document (under 300 words)","Only 2 defined applicability criteria (aircraft series and part numbers)","Single requirement referencing an external technical document rather than spelling out detailed procedures","No nested exceptions or conditional logic","No cross-references to other legislation beyond a single note about a UK equivalent directive","Straightforward compliance structure (follow the referenced service bulletin)"],"plain_english_summary":"This AD requires mandatory inspections of the main landing‑gear radius rod on British Aerospace Jetstream 3100/3200 aircraft that have part numbers 1847 or 1862, following BAe Systems Mandatory Service Bulletin 32‑JA 991140. It was issued after cracked rods and one complete failure were found.\n\nIt affects owners/operators of those Jets and legally prohibits flight unless the required inspections (and any corrective action) are carried out to prevent landing‑gear collapse."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD’s scope remains focused on inspecting main landing gear radius rods on Jetstream 3100/3200 aircraft with the specified part numbers and requires compliance with the manufacturer’s service bulletin. The instrument enforces the manufacturer’s inspection instructions but does not expand applicability beyond the listed aircraft or parts (see Applicability and Requirement)."},"complexity_factors":["Narrow applicability to specific aircraft models and two part numbers (Applicability: Jetstream 3100/3200 with P/Ns 1847 and 1862).","Mandates actions by reference to an external document (BAe Systems Mandatory Service Bulletin 32-JA 991140) rather than detailing procedures in the AD (Requirement).","Compliance timing and specific actions are set in the referenced service bulletin, creating reliance on another document for when and how to comply (Compliance: 'As specified in the Requirement document').","Delegated enforcement authority under CAR 1998 subreg 39.1(1) vests discretion in the CASA delegate (preamble/signature block).","Cross-reference to UK CAA AD (Note) introduces an international regulatory linkage that operators may need to consult.","Safety urgency is signalled by the Background (reports of cracks and a total failure), affecting prioritisation by operators."],"plain_english_summary":"This AD requires operators of Jetstream 3100 and 3200 aircraft fitted with main landing gear radius rods part numbers 1847 or 1862 to carry out inspections set out in BAe Systems Mandatory Service Bulletin 32-JA 991140, effective 10 August 2000. It was issued because the manufacturer reported cracks and one total radius‑rod failure.\n\nOperators must follow the service bulletin’s timing and procedures and bear inspection/repair costs; compliance is enforced by CASA under CAR 1998 subreg 39.1(1)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jetstream-89-main-landing-gear-radius-rod","history":"/api/acts/ad-jetstream-89-main-landing-gear-radius-rod/history","analysis":"/api/acts/ad-jetstream-89-main-landing-gear-radius-rod/analysis","conflicts":"/api/acts/ad-jetstream-89-main-landing-gear-radius-rod/conflicts","importantCases":"/api/acts/ad-jetstream-89-main-landing-gear-radius-rod/important-cases","documents":"/api/acts/ad-jetstream-89-main-landing-gear-radius-rod/documents"}}