{"id":"F2006B03698","name":"AD/BEECH 200/42 Amdt 1 - Engine Fuel Drain Connections","slug":"ad-beech-200-42-amdt-1-engine-fuel-drain-connections","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43288,"registerId":"commonwealth-F2006B03698-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 200/42 Amdt 1 - Engine Fuel Drain Connections","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBeechcraft 200 (Super King Air) Series Aeroplanes\n\nAD/BEECH 200/42\n\nAmdt 1\n\n  \nEngine Fuel Drain Connections 5/84\n\nApplicability: All model 200, serial numbers below BB-666, below BL-10 and below BT-17. Requirement: 1. Action in accordance with Beechcraft SI No. 1013 Rev. 1, OR\n\n    2. Alternatively the intent of Service Instruction No. 1013 Rev 1 may be accomplished by developing a modification acceptable to the Secretary to;\n\n    (a) Replace the PN330995-4-180 hose with a locally manufactured equivalent \\-6 hose and associated AN807-60 fitting, AND\n\n    (b) Achieve compatibility of the new AN807-6D fitting with the existing PN131066-2-320 hose and engine drain manifold.\n\nCompliance: Within 100 hours time in service after 1 June 1984.\n\nBackground: One instance of FWD combustion chamber drain hose and fuel manifold dump valve hose cross connection resulted in significant quantities of water and other contaminants reaching the nacelle tank via the combustion drain and collector tank. Because of the occurrence AD/BEECH 200/42 was issued requiring an immediate inspection of all affected aircraft. This Directive is amended to extend the applicability for aircraft serial numbers below BT-17 and introduce the installation of modified engine drain lines.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"The amendment broadened the directive's reach and required retrofits. Original AD required immediate inspection; Amdt 1 extends applicability to aircraft with serial numbers below BT-17 and introduces installation of modified engine drain lines (see 'Applicability' and 'Background'). This increases the number of affected aircraft and adds a mandated modification option in addition to inspection."},"complexity_factors":["Technical specificity: references to particular part numbers (PN330995-4-180, PN131066-2-320) and fittings (AN807-60, AN807-6D) increase technical compliance complexity.","Alternative compliance path: allows either following Beechcraft SI No.1013 Rev.1 or developing a Secretary‑acceptable modification, adding regulatory approval steps and discretion.","Applicability by serial number: scope depends on aircraft serial ranges (below BB-666, BL-10 and BT-17), requiring operators to verify eligibility.","Compliance timing: a firm short window (within 100 hours time in service after 1 June 1984) creates operational scheduling and downtime costs.","Safety consequence linkage: requirement follows a reported cross‑connection incident, so enforcement and inspection thoroughness are elevated."],"plain_english_summary":"This airworthiness directive requires operators of specified Beechcraft 200 series aeroplanes (serial numbers below BB‑666, BL‑10 and BT‑17) to either carry out Beechcraft Service Instruction No. 1013 Rev.1 or install an approved modification to the engine fuel drain lines. The rule was issued after a fuel/water cross‑connection incident; it aims to stop contamination of nacelle tanks. Operators pay for inspections, parts and labour, may need Secretary approval for alternative modifications, and must comply within 100 flight hours of 1 June 1984."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":true,"description":"This is Amendment 1 to an existing directive. The original AD/BEECH 200/42 required immediate inspection after a safety incident. This amendment expands the scope in two ways: (1) it extends applicability to additional aircraft (serial numbers below BT-17, not just below BB-666 and BL-10), and (2) it introduces a new compliance option — the installation of modified engine drain lines as an alternative to the manufacturer's service instruction. The directive has evolved from a reactive inspection order to a broader preventive modification requirement."},"complexity_factors":["Short, single-purpose directive (approximately 200 words)","Only 4 defined elements: specific part numbers (PN330995-4-180, AN807-60, AN807-6D, PN131066-2-320) and one technical reference (Beechcraft SI No. 1013 Rev. 1)","Simple conditional structure: two alternative compliance paths (OR)","Limited applicability criteria based on aircraft serial number ranges","Single compliance deadline with clear trigger (100 hours time in service after 1 June 1984)","No nested exceptions or cross-references to other legislation beyond the enabling Civil Aviation Regulations 1998"],"plain_english_summary":"This CASA Airworthiness Directive mandatorily requires owners/operators and maintenance engineers of certain Beechcraft 200 (Super King Air) aeroplanes to correct a fuel drain hose cross‑connection hazard that can allow water and contaminants into the fuel tank. Compliance may follow Beechcraft’s service instruction or an approved alternative modification.\n\nIt must be done within 100 flight hours after 1 June 1984. The amendment extends coverage to more serial numbers and addresses a known contamination incident that could cause engine failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-200-42-amdt-1-engine-fuel-drain-connections","history":"/api/acts/ad-beech-200-42-amdt-1-engine-fuel-drain-connections/history","analysis":"/api/acts/ad-beech-200-42-amdt-1-engine-fuel-drain-connections/analysis","conflicts":"/api/acts/ad-beech-200-42-amdt-1-engine-fuel-drain-connections/conflicts","importantCases":"/api/acts/ad-beech-200-42-amdt-1-engine-fuel-drain-connections/important-cases","documents":"/api/acts/ad-beech-200-42-amdt-1-engine-fuel-drain-connections/documents"}}