{"id":"F2006B07041","name":"AD/SM-205/19 - Carburettor Air Intake Box and Engine Cowling - Modification","slug":"ad-sm-205-19-carburettor-air-intake-box-and-engine-cowling-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48758,"registerId":"commonwealth-F2006B07041-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SM-205/19 - Carburettor Air Intake Box and Engine Cowling - 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-205/19 Carburettor Air Intake Box and Engine Cowling - Modification\n\n\n6/72\n\n \n\nApplicability: Model S208 with S/Nos. 001 to 003, 1-03 to 1-15 except 1-10 and 1-13; 2-16 to 2-21, 2-47 to 2-50 and 4-51 and all model S205-22/R converted to model S208.\n\n \n\nDocument:  SIAI Marchetti SB No. 205B301A. Compliance: Before issue of a Certificate of Airworthiness.\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":1087},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope, targeting only the specified airframe modifications for identified SIAI Marchetti aircraft models."},"complexity_factors":["Technical aviation terminology requiring specialized knowledge (carburettor air intake box, engine cowling, Certificate of Airworthiness)","Precise serial number applicability with multiple ranges and specific exclusions","Reference to external technical document (Service Bulletin 205B301A) not reproduced within the directive","Specific compliance timing tied to certification events"],"plain_english_summary":"This Airworthiness Directive (AD) mandates a safety modification for specific SIAI Marchetti aircraft models.\n\n**Who it affects**\nOwners and operators of:\n- SIAI Marchetti S208 model aircraft with specific serial numbers (001–003, 1-03 to 1-15 except 1-10 and 1-13, 2-16 to 2-21, 2-47 to 2-50, and 4-51)\n- All S205-22/R models that have been converted to S208 specification\n\n**What you must do**\nModify the **carburettor air intake box** (the housing that channels air to the engine's fuel mixing system) and the **engine cowling** (the protective covering over the engine) according to the manufacturer's instructions in Service Bulletin No. 205B301A.\n\n**When**\nBefore the aircraft can be issued with a Certificate of Airworthiness (the official document allowing the plane to fly).\n\n**Why it matters**\nThis ensures these specific aircraft meet current safety standards for engine air intake and cooling systems, preventing potential engine failure or performance issues."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sm-205-19-carburettor-air-intake-box-and-engine-cowling-modification","history":"/api/acts/ad-sm-205-19-carburettor-air-intake-box-and-engine-cowling-modification/history","analysis":"/api/acts/ad-sm-205-19-carburettor-air-intake-box-and-engine-cowling-modification/analysis","conflicts":"/api/acts/ad-sm-205-19-carburettor-air-intake-box-and-engine-cowling-modification/conflicts","importantCases":"/api/acts/ad-sm-205-19-carburettor-air-intake-box-and-engine-cowling-modification/important-cases","documents":"/api/acts/ad-sm-205-19-carburettor-air-intake-box-and-engine-cowling-modification/documents"}}