{"id":"F2005B00564","name":"CASA 493/02 - Approval under subregulation 207(2)","slug":"casa-493-02-approval-under-subregulation-207-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":31997,"registerId":"commonwealth-F2005B00564-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 493/02 - Approval under subregulation 207(2)","content":"INSTRUMENT NUMBER: CASA 493/02\n\nCIVIL AVIATION ACT 1988\n\nCIVIL AVIATION REGULATIONS 1988\n\nAPPROVAL UNDER SUBREGULATION 207 (2)\n\nI, JAMES COYNE, Acting Section Head, Systems, Certification Standards Branch, CASA, a delegate of CASA, under subregulation 207 (2) of the Civil Aviation Regulations 1988 approve the operation of the aircraft bearing the nationality and registration marks VH-KGL with nasal cannula type individual oxygen dispensing units manufactured under the name “Oxymizer”, providing that:\n\n(a) the units have a flow rate of not less than 03 litre per minute at 10,000 feet altitude, increasing by 0.1 litre per minute for every 2,000 feet up to 18,000 feet altitude; and\n\n(b) other individual oxygen dispensing units for use in the aircraft, that are designed to cover the nose and mouth, meet the requirements of paragraph 6.1 of section 108.26 of the Civil Aviation Orders and are provided in accordance with paragraph 5.1.2 of that section.\n\n\\[Signed J. Coyne\\]\n\nJames Coyne\n\nActing Section Head, Systems\n\nCertification Standards Branch\n\n19 August 2002","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"This instrument creates a limited change in scope by authorising the specific aircraft VH‑KGL to operate with Oxymizer nasal cannula individual oxygen dispensing units subject to conditions. The approval functions as an aircraft‑specific exception or authorisation under subregulation 207(2) rather than an amendment to general regulation; it therefore expands permitted equipment for VH‑KGL alone while leaving the broader regulatory requirements intact (see instrument text, paragraphs (a) and (b))."},"complexity_factors":["Highly specific, single-aircraft approval rather than broad rule change","Technical requirement for oxygen flow that scales with altitude (arithmetic progression across altitudes) (paragraph (a))","Cross-reference to external Civil Aviation Orders for part of the compliance obligations (paragraph (b))","Delegated decision-making under subregulation 207(2) creates case-by-case discretion","Short instrument text with operational dependencies on other regulatory material (CAOs)"],"plain_english_summary":"This is a site‑specific CASA approval authorising VH‑KGL to use Oxymizer nasal‑cannula oxygen units, provided they deliver specified minimum flows that rise with altitude and the aircraft also carries nose‑and‑mouth units that meet the cited Civil Aviation Orders. The operator must procure, verify and maintain compliant equipment and bears the compliance costs; the approval is narrowly targeted and does not include CASA funding or a safety rationale."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard single-aircraft approval instrument. It has not grown beyond its original purpose; it precisely matches the narrow scope of approving one specific oxygen device for one specific aircraft under one specific regulation."},"complexity_factors":["Single-purpose instrument with one clear approval and two straightforward conditions","No defined terms section - relies on external references to Civil Aviation Orders","Minimal cross-referencing (only to Civil Aviation Regulations 1988, subregulation 207(2) and Civil Aviation Orders section 108.26)","No nested logic or exceptions to exceptions","Very short document (under 200 words)"],"plain_english_summary":"This is a specific approval from the Civil Aviation Safety Authority (CASA) allowing a particular aircraft (registration VH-KGL) to use a specific type of oxygen delivery device called an \"Oxymizer\" for passengers or crew who need supplemental oxygen.\n\n**What it does:**\nNormally, aviation oxygen masks must cover both the nose and mouth. This approval permits the use of **nasal cannulas** (small tubes that sit in the nostrils) instead, but only under strict conditions.\n\n**Who it affects:**\n- The operator of aircraft VH-KGL\n- Passengers and crew using oxygen on this specific aircraft\n\n**The conditions:**\n- The Oxymizer units must deliver at least 0.3 litres of oxygen per minute at 10,000 feet, with increasing flow at higher altitudes (up to 18,000 feet)\n- The aircraft must still carry standard masks that cover nose and mouth as backup, and these must meet normal aviation safety standards\n\n**Why it matters:**\nNasal cannulas are more comfortable for some users than full face masks, but they require specific approval because they don't seal as well. This document shows how aviation safety regulators grant exceptions to standard rules when specific safety conditions are met."}},"importantCases":[],"_links":{"self":"/api/acts/casa-493-02-approval-under-subregulation-207-2","history":"/api/acts/casa-493-02-approval-under-subregulation-207-2/history","analysis":"/api/acts/casa-493-02-approval-under-subregulation-207-2/analysis","conflicts":"/api/acts/casa-493-02-approval-under-subregulation-207-2/conflicts","importantCases":"/api/acts/casa-493-02-approval-under-subregulation-207-2/important-cases","documents":"/api/acts/casa-493-02-approval-under-subregulation-207-2/documents"}}