{"id":"F2006B10227","name":"AD/GAS/2 - Filament Wound, Fibre-Glass, High Pressure Spherical Vessels","slug":"ad-gas-2-filament-wound-fibre-glass-high-pressure-spherical-vessels","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55885,"registerId":"commonwealth-F2006B10227-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GAS/2 - Filament Wound, Fibre-Glass, High Pressure Spherical Vessels","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 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Compressed Gas Cylinders\n\n \n\nAD/GAS/2 Filament Wound, Fibre-Glass, High Pressure Spherical Vessels\n\nApplicability: All vessels manufactured by Apex Fibre-Glass Products, Cleveland, Ohio. Requirement:               Retire from service.\n\nCompliance: Forthwith.\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\n\n3/74\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1663},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original, narrowly targeted scope: addressing an immediate safety imperative concerning a specific manufacturer's high-pressure vessels. There is no evidence of expansion beyond the original technical safety defect that prompted the grounding order."},"complexity_factors":["Single, unambiguous operative requirement ('Retire from service') with no conditions or sub-clauses","No definitions section, interpretation provisions, or technical cross-references","Extremely short length (operative text is less than 50 words)","No exceptions, exemptions, alternative compliance methods, or transitional provisions"],"plain_english_summary":"**Immediate grounding of dangerous gas cylinders**\n\nThis safety directive orders the immediate removal from service of specific high-pressure gas cylinders used in aircraft.\n\n**Who it affects:**\n- Aircraft operators or owners using spherical, filament-wound fibre-glass gas vessels\n- Specifically those manufactured by Apex Fibre-Glass Products in Cleveland, Ohio\n\n**What you must do:**\n- **Retire these vessels immediately** — remove them from the aircraft and do not use them\n- There is no grace period (\"Forthwith\" means do it now)\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders issued by the Civil Aviation Safety Authority. This directive targets a specific make of high-pressure vessel, likely due to discovered structural failures or safety defects in the filament-wound fibre-glass construction. Non-compliance breaches aviation safety law and poses serious risks to flight safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gas-2-filament-wound-fibre-glass-high-pressure-spherical-vessels","history":"/api/acts/ad-gas-2-filament-wound-fibre-glass-high-pressure-spherical-vessels/history","analysis":"/api/acts/ad-gas-2-filament-wound-fibre-glass-high-pressure-spherical-vessels/analysis","conflicts":"/api/acts/ad-gas-2-filament-wound-fibre-glass-high-pressure-spherical-vessels/conflicts","importantCases":"/api/acts/ad-gas-2-filament-wound-fibre-glass-high-pressure-spherical-vessels/important-cases","documents":"/api/acts/ad-gas-2-filament-wound-fibre-glass-high-pressure-spherical-vessels/documents"}}