{"id":"F2006B04122","name":"AD/BEECH 65/2 - Fuel System Check Valves - Installation","slug":"ad-beech-65-2-fuel-system-check-valves-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43821,"registerId":"commonwealth-F2006B04122-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 65/2 - Fuel System Check Valves - Installation","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 65 and 70 (Queen Air) Series Aeroplanes\n\n \n\nAD/BEECH 65/2 Fuel System Check Valves - Installation 11/67\n\nApplicability: Models 65 and 65-80 with S/Nos. LC-1 to LC-159. Model 65-80 S/Nos. LD-1 to LD- 150.\n\n \n\nDocument: Beechcraft SB 64-20.\n\n \n\nCompliance: Within 200 hours’ time in service after 22 July 1965.\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\n \n\nFederal Register of Legislative Instruments F2006B04122\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2036},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope targeting a specific fuel system safety modification for defined aircraft models. No evidence of regulatory scope creep beyond the initial safety intent to prevent fuel system failures."},"complexity_factors":["Narrow applicability restricted to specific aircraft serial number ranges (three discrete production blocks)","Single, unambiguous compliance action requiring installation of parts per manufacturer bulletin","No nested conditional exceptions or layered operative provisions","Standard aviation terminology ('time in service') with clear external reference to technical standard"],"plain_english_summary":"This AD requires owners/operators of Beechcraft Queen Air Models 65 and 65-80 (serials LC‑1–LC‑159 and LD‑1–LD‑150) to install fuel-system check valves per Beechcraft SB 64‑20. Compliance is required within 200 hours time‑in‑service after 22 July 1965. The modification prevents fuel backflow that can cause fuel starvation, engine failure, or fire."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-65-2-fuel-system-check-valves-installation","history":"/api/acts/ad-beech-65-2-fuel-system-check-valves-installation/history","analysis":"/api/acts/ad-beech-65-2-fuel-system-check-valves-installation/analysis","conflicts":"/api/acts/ad-beech-65-2-fuel-system-check-valves-installation/conflicts","importantCases":"/api/acts/ad-beech-65-2-fuel-system-check-valves-installation/important-cases","documents":"/api/acts/ad-beech-65-2-fuel-system-check-valves-installation/documents"}}