{"id":"F2006B07046","name":"AD/SM-205/24 - Landing Gear Actuator Bracket - Inspection and Modification","slug":"ad-sm-205-24-landing-gear-actuator-bracket-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48770,"registerId":"commonwealth-F2006B07046-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SM-205/24 - Landing Gear Actuator Bracket - Inspection and Modification","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-205/24 Landing Gear Actuator Bracket - Inspection\n\nand Modification\n\n\n12/73\n\n \n\nApplicability: All models.\n\n \n\nDocument: SIAI Marchetti SB No. 205B39. Compliance: As per the Requirement Document.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The document provides a single, focused requirement: inspection and modification of the landing gear actuator bracket per SIAI Marchetti SB No. 205B39 and applies to all models. The text contains no amendment history or language indicating a change in scope from an earlier instrument; therefore there is no evidence in the supplied text that the scope has changed."},"complexity_factors":["The AD text is short and procedural, but it delegates technical detail to an external Requirement Document (SIAI Marchetti SB No. 205B39), increasing reliance on that document.","Technical nature of the required work (landing gear actuator bracket inspection and modification) requires certified maintenance capability and possibly parts, adding operational complexity.","Applicability to all models in the series broadens the population affected and the logistics of scheduling work across operators.","The AD gives minimal operational detail, so determining timing, scope, and acceptable alternatives depends on the external service bulletin and regulatory approval processes.","Enforcement and legal effect flow from the Commonwealth/CASA airworthiness directive framework, which imposes mandatory compliance obligations on operators."],"plain_english_summary":"This AD mandates inspection and modification of the landing‑gear actuator bracket on SIAI Marchetti S205/S208 aeroplanes, requiring compliance with SIAI Marchetti Service Bulletin No. 205B39 (the Requirement Document). It applies to owners/operators and approved maintenance organisations and is enforceable by CASA. Operators bear the cost and must obtain the service bulletin and arrange the required maintenance to remain compliant and airworthy."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive of the type routinely issued by CASA. It addresses a specific technical defect in a specific aircraft type. There is no indication of scope creep; the instrument precisely targets the landing gear actuator bracket issue as originally identified."},"complexity_factors":["Extremely short document (approximately 150 words of substantive content)","No defined terms section — relies entirely on external reference to manufacturer service bulletin","Simple conditional structure: single applicability clause ('All models') with no exceptions or nested conditions","No cross-references to other legislation beyond generic 'Civil Aviation Regulations 1998, Part 39' citation","Single compliance requirement: 'As per the Requirement Document' — delegates all technical detail to external document","No penalty provisions, review mechanisms, or administrative procedures contained within the instrument itself"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA). It mandates safety actions for specific Italian-made aircraft.\n\n**What it does:**\n- Requires owners and operators of **SIAI Marchetti S205 and S208 series aeroplanes** to inspect and modify the **landing gear actuator bracket** — a critical component that helps extend and retract the aircraft's wheels.\n- The directive references a manufacturer service bulletin (SB No. 205B39) which contains the detailed technical instructions.\n\n**Who it affects:**\n- Owners and operators of all models in the SIAI Marchetti S205 and S208 aircraft series\n- Maintenance organisations servicing these aircraft\n- Pilots flying these aircraft (indirectly, as they cannot fly non-compliant aircraft)\n\n**Why it matters:**\nLanding gear failures can be catastrophic — particularly during takeoff or landing. This directive addresses a potential structural defect in the bracket that operates the landing gear. Compliance is **mandatory** under Australian civil aviation law. Aircraft cannot legally fly until the required inspection and modification is completed as specified in the manufacturer's service bulletin."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sm-205-24-landing-gear-actuator-bracket-inspection-and-modification","history":"/api/acts/ad-sm-205-24-landing-gear-actuator-bracket-inspection-and-modification/history","analysis":"/api/acts/ad-sm-205-24-landing-gear-actuator-bracket-inspection-and-modification/analysis","conflicts":"/api/acts/ad-sm-205-24-landing-gear-actuator-bracket-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-sm-205-24-landing-gear-actuator-bracket-inspection-and-modification/important-cases","documents":"/api/acts/ad-sm-205-24-landing-gear-actuator-bracket-inspection-and-modification/documents"}}