{"id":"F2006B02011","name":"AD/A330/36 - Main Landing Gear Wheel Axles","slug":"ad-a330-36-main-landing-gear-wheel-axles","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41233,"registerId":"commonwealth-F2006B02011-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\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 CASR 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\n![](image.001.png)  \n\nAirbus Industrie A330 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/A330/36 Main Landing Gear Wheel Axles","sectionType":"part","heading":"AD/A330/36 Main Landing Gear Wheel Axles 9/2004","content":"# AD/A330/36 Main Landing Gear Wheel Axles 9/2004\n\nApplicability: All Model A330-200 and \\-300 aircraft, equipped with main landing gear axles part number 201272608, 201272638, 201272644, or 201272649, which were either:\n\n    \\- manufactured before 20 December 1994, pre and post overhaul; or,\n\n    \\- manufactured after 20 December 1994, and subsequently overhauled or repaired with one or more chrome journals re-worked by stripping, application and grinding.\n\nRequirement: Action in accordance with the requirements of DGAC AD F-2004-100.\n\nNote: Airbus All Operator Telex AOT A330-32A3176 R1 refers.\n\nCompliance: As specified in the Requirement document.\n\nThis Airworthiness Directive becomes effective on 2 September 2004.\n\nBackground: The DGAC received a report of an in-service fracture of a right hand main landing gear forward wheel axle on a Model A340-300 aircraft. Investigation revealed that cracks were generated by overheat damage to the axle base metal, which resulted from abusive grinding of the chrome plate during original manufacture. Propagation of the cracks occurred rapidly by stress corrosion.\n\n![](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 13 July 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 11 August 2004.","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":3,"scope_assessment":{"changed":false,"description":"The Directive adopts and enforces the corrective actions set out in DGAC AD F‑2004‑100 for the specified axle part numbers and manufacture/repair histories. The text limits scope to those axles implicated by the reported fracture and the described cause (overheat damage from chrome grinding and stress‑corrosion), and does not expand applicability beyond that set of parts and circumstances."},"complexity_factors":["Cross-reference to an external DGAC AD (DGAC AD F-2004-100) — requires consultees to read and apply another regulator's document rather than containing full technical steps in the AD itself.","Precise technical applicability — limited to four part numbers and to axles defined by manufacture date or by post‑manufacture chrome‑journal rework, which requires maintenance/records checks to determine applicability.","Reliance on a manufacturer telex (Airbus AOT A330-32A3176 R1) as a related source — adds another technical document to consult.","Compliance timing and procedural detail are delegated to the referenced documents rather than restated, increasing practical compliance effort for operators.","Regulatory basis under CASR subreg 39.1(1) concentrates enforcement discretion with the CASA delegate but imposes binding obligations on operators."],"plain_english_summary":"This Airworthiness Directive makes mandatory in Australia the inspections and repairs set out in DGAC AD F‑2004‑100 for Airbus A330‑200/300 aircraft fitted with main landing gear axles P/N 201272608, 201272638, 201272644 or 201272649 manufactured before 20 Dec 1994, or later axles that were overhauled with chrome journals re‑worked. CASA’s delegate issues the requirement under CASR subreg 39.1(1); operators must carry out and fund the required actions.\n\nDGAC issued the referenced action after a reported axle fracture linked to overheat damage from abusive chrome grinding and subsequent stress‑corrosion cracking; this AD implements that corrective programme in Australia to address that identified unsafe condition."},"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 specific part numbers on specific aircraft models. There is no evidence of scope creep; it remains tightly focused on the landing gear axle cracking issue identified in the background."},"complexity_factors":["Very short document (under 300 words)","Only 4 defined part numbers in applicability section","Single requirement referencing external technical document (DGAC AD F-2004-100)","No nested exceptions or conditional logic beyond two alternative manufacturing date scenarios","No internal cross-references to other sections of CASR or the AD itself","Straightforward temporal trigger (manufacture/overhaul dates)"],"plain_english_summary":"This AD requires inspection or replacement of certain main landing‑gear wheel axles on Airbus A330-200/300s because overheating damage from improper grinding can cause stress‑corrosion cracking and rapid failure. It targets axles with specified part numbers made before 20 Dec 1994, or later axles that were overhauled/repaired with chrome re‑work, and directs compliance with the referenced DGAC AD. It’s effective 2 September 2004, prompted by a similar A340 axle fracture."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a330-36-main-landing-gear-wheel-axles","history":"/api/acts/ad-a330-36-main-landing-gear-wheel-axles/history","analysis":"/api/acts/ad-a330-36-main-landing-gear-wheel-axles/analysis","conflicts":"/api/acts/ad-a330-36-main-landing-gear-wheel-axles/conflicts","importantCases":"/api/acts/ad-a330-36-main-landing-gear-wheel-axles/important-cases","documents":"/api/acts/ad-a330-36-main-landing-gear-wheel-axles/documents"}}