{"id":"F2006B04210","name":"AD/BEECH 90/17 - Engine Fire Extinguisher System - Modification","slug":"ad-beech-90-17-engine-fire-extinguisher-system-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43966,"registerId":"commonwealth-F2006B04210-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 90/17 - Engine Fire Extinguisher System - 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)  Beechcraft 90 and 65-90 (King Air) Series Aeroplanes\n\n \n\nAD/BEECH 90/17 Engine Fire Extinguisher System - Modification\n\n\n9/69\n\n \n\nApplicability: Models 65-90, 65-A90 and B90 with S/Nos. LJ-1 to LJ-461 equipped with engine fire extinguishers.\n\n \n\nDocument: Beechcraft SI No. 0197-481.\n\n \n\nCompliance: Within 100 hours’ time in service after 29 September 1969.\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":1494},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive remains tightly focused on its original purpose: mandating a specific safety modification to engine fire extinguisher systems on defined Beechcraft aircraft. No expansion beyond this technical safety requirement is evident."},"complexity_factors":["Single, unqualified compliance requirement with no exceptions or conditional branches","Narrow applicability limited to three specific aircraft models and a defined serial number range","No interpretation section or defined terms","Short document length with only one external reference (the Service Instruction)"],"plain_english_summary":"This is a safety order that requires owners of specific Beechcraft King Air aircraft to upgrade their engine fire extinguisher systems.\n\n**Who it affects:**\n- Owners and operators of Beechcraft models 65-90, 65-A90, and B90 with serial numbers LJ-1 through LJ-461\n- Only applies if the aircraft is equipped with engine fire extinguishers\n\n**What you must do:**\n- Modify the engine fire extinguisher system according to Beechcraft Service Instruction No. 0197-481 (the manufacturer's technical guide)\n- Complete the work within 100 hours of flight time after the effective date\n\n**Why it matters:**\nThis modification ensures the fire extinguisher systems work properly in an emergency, reducing the risk of uncontrolled engine fires that could lead to total aircraft loss."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-90-17-engine-fire-extinguisher-system-modification","history":"/api/acts/ad-beech-90-17-engine-fire-extinguisher-system-modification/history","analysis":"/api/acts/ad-beech-90-17-engine-fire-extinguisher-system-modification/analysis","conflicts":"/api/acts/ad-beech-90-17-engine-fire-extinguisher-system-modification/conflicts","importantCases":"/api/acts/ad-beech-90-17-engine-fire-extinguisher-system-modification/important-cases","documents":"/api/acts/ad-beech-90-17-engine-fire-extinguisher-system-modification/documents"}}