{"id":"F2006B04892","name":"AD/CERES/3 Amdt 1 - Fuel Tank Vent - Modification","slug":"ad-ceres-3-amdt-1-fuel-tank-vent-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44702,"registerId":"commonwealth-F2006B04892-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CERES/3 Amdt 1 - Fuel Tank Vent - 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)  C.A.C. CA-28 (Ceres) Series Aeroplanes\n\n \n\n# AD/CERES/3\n\nAmdt 1\n\nApplicability: All models. Document: Ceres SB No. 37. Compliance: Forthwith.\n\n# Fuel Tank Vent - Modification 9/99\n\nNote: Modifications performed in accordance with AD/CA-28/3 satisfy the requirements of this Directive.\n\n \n\nThis Amendment becomes effective on 9 September 1999.\n\n \n\nBackground  The original issue of this Airworthiness Directive became effective in Issue AL 10/63.\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":1454},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This amendment maintains the original 1963 scope regarding fuel tank vent safety for CAC Ceres aircraft. It does not expand applicability or introduce new subject matter beyond the original fuel system modification requirement."},"complexity_factors":["Single, unambiguous operational requirement","No defined terms or interpretation section","Minimal cross-referencing (only to one manufacturer service bulletin and one previous directive)","No conditional logic, exceptions, or procedural steps","Extremely brief text"],"plain_english_summary":"**What this is:** A mandatory safety instruction (called an Airworthiness Directive) issued by the Civil Aviation Safety Authority for owners and operators of CAC CA-28 Ceres aircraft — a type of agricultural aeroplane.\n\n**What you must do:** Immediately modify the fuel tank vent system on your aircraft according to the manufacturer's instructions in \"Ceres Service Bulletin No. 37.\"\n\n**The good news:** If you already performed this modification under an earlier safety order (AD/CA-28/3), you don't need to do it again — you're already compliant.\n\n**Why this matters:** This updates a long-standing safety requirement dating back to 1963. Fuel tank vent modifications prevent dangerous pressure imbalances or fuel leaks that could cause engine failure or fire."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ceres-3-amdt-1-fuel-tank-vent-modification","history":"/api/acts/ad-ceres-3-amdt-1-fuel-tank-vent-modification/history","analysis":"/api/acts/ad-ceres-3-amdt-1-fuel-tank-vent-modification/analysis","conflicts":"/api/acts/ad-ceres-3-amdt-1-fuel-tank-vent-modification/conflicts","importantCases":"/api/acts/ad-ceres-3-amdt-1-fuel-tank-vent-modification/important-cases","documents":"/api/acts/ad-ceres-3-amdt-1-fuel-tank-vent-modification/documents"}}