{"id":"F2006B11067","name":"AD/LA-4/17 - Fuel Cell - Inspection","slug":"ad-la-4-17-fuel-cell-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56702,"registerId":"commonwealth-F2006B11067-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/LA-4/17 - Fuel Cell - Inspection","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)  Consolidated Aeronautics, Colonial and LA-4 Series Aeroplanes\n\n \n\nAD/LA-4/17 Fuel Cell - Inspection 5/77\n\nApplicability: Lake LA-4-200 Models with S/Nos. 680, 698 to 809.\n\n \n\nDocument: Lake Aircraft Division Consolidated Aeronautics Inc. SB No. B58. Compliance: Within 100 hours time in service after 31 May 1977.\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":1290},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope, applying only to fuel cell inspections for specific Lake LA-4-200 aircraft models as originally issued."},"complexity_factors":["Single operational requirement with no conditional exceptions","No definitions or interpretation section","Straightforward applicability criteria (specific serial numbers only)","No cross-references to other legislation beyond the manufacturer service bulletin"],"plain_english_summary":"This Airworthiness Directive (AD) is a safety order affecting specific Lake aircraft models.\n\n**Who it affects**\nOwners and operators of **Lake LA-4-200 aeroplanes** with serial numbers 680, or 698 through 809.\n\n**What it requires**\nYou must inspect the **fuel cell** (the aircraft's fuel tank) following the manufacturer's Service Bulletin B58.\n\n**When you must comply**\nWithin 100 hours of flight time after 31 May 1977.\n\n**Why this matters**\nThis ensures the fuel cells in these specific aircraft remain airworthy and safe to operate, preventing potential fuel system failures."}},"importantCases":[],"_links":{"self":"/api/acts/ad-la-4-17-fuel-cell-inspection","history":"/api/acts/ad-la-4-17-fuel-cell-inspection/history","analysis":"/api/acts/ad-la-4-17-fuel-cell-inspection/analysis","conflicts":"/api/acts/ad-la-4-17-fuel-cell-inspection/conflicts","importantCases":"/api/acts/ad-la-4-17-fuel-cell-inspection/important-cases","documents":"/api/acts/ad-la-4-17-fuel-cell-inspection/documents"}}