{"id":"F2006B07044","name":"AD/SM-205/21 - Landing Gear Cross Members - Inspection","slug":"ad-sm-205-21-landing-gear-cross-members-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48765,"registerId":"commonwealth-F2006B07044-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SM-205/21 - Landing Gear Cross Members - Inspection","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  SIAI Marchetti S205 and S208 Series Aeroplanes\n\n \n\nAD/SM-205/21 Landing Gear Cross Members - Inspection 9/72\n\nApplicability: All models except those equipped with reinforced or new designed landing gear cross members.\n\n \n\nDocument: SIAI Marchetti SB No. 205B36.\n\n \n\nCompliance: Within 100 hours time in service after 29 September 1972 and thereafter at intervals not exceeding 100 hours time in service.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1839},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This appears to be a 2021 reissue of an original 1972 directive. The scope remains tightly focused on the specific structural component (landing gear cross members) on the specific aircraft models (SIAI Marchetti S205/S208) as originally intended, with no expansion to additional aircraft types or systems."},"complexity_factors":["Extremely short text (approximately 100 words of substantive content)","Only one exemption condition (aircraft with reinforced/new cross members)","Single compliance action with straightforward recurring interval (100 hours)","Only one external reference (Service Bulletin 205B36) with no nested legislative cross-references","No defined terms section or interpretive provisions"],"plain_english_summary":"**What this does:** This is a mandatory aviation safety rule (called an Airworthiness Directive) that requires recurring inspections of landing gear cross members on Italian-made SIAI Marchetti S205 and S208 series aircraft.\n\n**Who it affects:** Owners and operators of these specific aircraft models that have not been fitted with reinforced or newly designed landing gear cross members.\n\n**What must be done:** Operators must inspect the landing gear cross members within 100 hours of flight time after the compliance date, and then repeat this inspection at least every 100 hours of flight time. The inspection must follow the technical procedures outlined in the manufacturer's Service Bulletin No. 205B36.\n\n**Why it matters:** This prevents structural failure of the landing gear during takeoff or landing. The recurring inspection requirement ensures fatigue cracks or structural weaknesses are detected before they cause a gear collapse."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sm-205-21-landing-gear-cross-members-inspection","history":"/api/acts/ad-sm-205-21-landing-gear-cross-members-inspection/history","analysis":"/api/acts/ad-sm-205-21-landing-gear-cross-members-inspection/analysis","conflicts":"/api/acts/ad-sm-205-21-landing-gear-cross-members-inspection/conflicts","importantCases":"/api/acts/ad-sm-205-21-landing-gear-cross-members-inspection/important-cases","documents":"/api/acts/ad-sm-205-21-landing-gear-cross-members-inspection/documents"}}