{"id":"F2006B05266","name":"AD/CESSNA 206/6 - Fuel System Drain Cock","slug":"ad-cessna-206-6-fuel-system-drain-cock","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45620,"registerId":"commonwealth-F2006B05266-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 206/6 - Fuel System Drain Cock","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)  Cessna 206 Series Aeroplanes\n\n \n\nAD/CESSNA 206/6 Fuel System Drain Cock 8/69\n\nApplicability: All models with extension piece fitted to drain cock of accumulator fuel tank. Requirement:              Action in accordance with Rex Aviation Technical Memorandum TM-25, dated 5\n\nMarch 1969.\n\n \n\nCompliance: Within 100 hours time in service after 1 August 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\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":985},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive remains tightly scoped to its original purpose: addressing a specific mechanical defect in the fuel system drain cock of Cessna 206 aircraft. It has not expanded beyond this technical safety issue."},"complexity_factors":["Very short text with no defined terms section","Single applicability criterion (specific aircraft modification)","Single requirement referencing external technical document","Simple compliance deadline with clear metric (100 hours time in service)","No exceptions, exemptions, or conditional logic"],"plain_english_summary":"**What this is:** A safety order (called an Airworthiness Directive) issued by Australia's Civil Aviation Safety Authority requiring specific maintenance action on Cessna 206 aircraft.\n\n**Who it affects:** Owners and operators of Cessna 206 series aeroplanes that have an extension piece fitted to the drain cock of the accumulator fuel tank.\n\n**What you must do:** Follow the instructions in **Rex Aviation Technical Memorandum TM-25** (dated 5 March 1969) regarding the fuel system drain cock. This likely involves inspecting, modifying, or replacing the extension piece to prevent fuel system failures.\n\n**When you must do it:** Within 100 hours of flight time (\"time in service\") after 1 August 1969.\n\n**Why this matters:** Fuel system defects can lead to fuel leaks, engine failure, or fire. This directive mandates a specific safety fix to keep the aircraft airworthy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-206-6-fuel-system-drain-cock","history":"/api/acts/ad-cessna-206-6-fuel-system-drain-cock/history","analysis":"/api/acts/ad-cessna-206-6-fuel-system-drain-cock/analysis","conflicts":"/api/acts/ad-cessna-206-6-fuel-system-drain-cock/conflicts","importantCases":"/api/acts/ad-cessna-206-6-fuel-system-drain-cock/important-cases","documents":"/api/acts/ad-cessna-206-6-fuel-system-drain-cock/documents"}}