{"id":"F2005B00562","name":"CASA 323/02 - Approval under subregulation 207(2)","slug":"casa-323-02-approval-under-subregulation-207-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":31992,"registerId":"commonwealth-F2005B00562-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 323/02 - Approval under subregulation 207(2)","content":"INSTRUMENT NUMBER: CASA 323/02\n\nCIVIL AVIATION ACT 1988\n\nCIVIL AVIATION REGULATIONS 1988\n\nAPPROVAL UNDER SUBREGULATION 207 (2)\n\nI, EUGENE HOLZAPFEL, 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-MZB 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 E. Holzapfel\\]\n\nEugene Holzapfel\n\nSection Head, Systems\n\nCertification Standards Branch\n\n11th June 2002","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This approval changes the equipment-authorisation scope for a specific aircraft (VH-MZB) by permitting nasal-cannula Oxymizer units to be used under stated technical conditions. The instrument exercises delegate power under subregulation 207(2) to allow an equipment alternative for that registration (see approval under subregulation 207(2)). The approval is conditional and limited: it requires the Oxymizer flow-rate profile specified in condition (a) and preserves the requirement that other nose-and-mouth oxygen units meet CAO section 108.26 paragraphs 6.1 and 5.1.2 (condition (b)), so the change is targeted and contingent rather than a broad amendment to standard equipment requirements."},"complexity_factors":["Narrow, aircraft-specific approval limited to a single registration (VH-MZB), which simplifies scope but limits generalisability.","Technical condition specifying a stepped flow-rate profile by altitude (0.3 L/min at 10,000 ft, +0.1 L/min per 2,000 ft to 18,000 ft).","Cross-reference to external material (paragraph 6.1 and paragraph 5.1.2 of section 108.26 of the Civil Aviation Orders) requiring consultation of another instrument to determine full compliance.","Relies on delegate authority under subregulation 207(2) — involves administrative discretion rather than a standardised, general regulatory amendment.","Operational compliance tasks (verification, maintenance, record-keeping) implied by technical and cross-referenced conditions."],"plain_english_summary":"CASA has authorised the specific aircraft VH‑MZB to operate with nasal‑cannula “Oxymizer” oxygen units, subject to a required altitude‑dependent flow‑rate profile and that any other nose‑and‑mouth oxygen devices meet cited Civil Aviation Order requirements. This affects the aircraft’s owner/operator, crew and passengers, suppliers of the devices, and maintenance/compliance staff because it permits Oxymizer use but imposes testing, documentation and ongoing conformity obligations."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard single-aircraft approval instrument issued under subregulation 207(2), which is specifically designed for approving variations from standard oxygen equipment requirements. The scope remains tightly limited to the specific aircraft (VH-MZB) and specific equipment (Oxymizer nasal cannulas) as originally intended by the regulatory framework."},"complexity_factors":["Single-purpose instrument with one clear approval and two straightforward conditions","No defined terms section — all terms are either common aviation knowledge or explicitly described","Minimal cross-referencing: only references to subregulation 207(2) of the Civil Aviation Regulations 1988 and specific paragraphs of Civil Aviation Orders section 108.26","Simple conditional structure: one approval with two sub-conditions (a) and (b)","Short length (approximately 150 words of operative text)","No exceptions to exceptions or nested logic"],"plain_english_summary":"**What this document does:**\n\nThis is a specific approval issued by the Civil Aviation Safety Authority (CASA) allowing a particular aircraft (registration VH-MZB) to use a specific type of oxygen delivery device called an \"Oxymizer\" — a nasal cannula that delivers oxygen through small tubes inserted into the nostrils.\n\n**Who it affects:**\n- The operator of aircraft VH-MZB\n- Pilots and passengers using supplemental oxygen on this aircraft\n\n**The conditions:**\nThe approval only applies if two strict rules are followed:\n\n1. **Flow rate requirements:** The Oxymizer units must deliver at least 0.3 litres of oxygen per minute when flying at 10,000 feet, with the flow rate increasing by 0.1 litres per minute for every 2,000 feet of additional altitude (up to 18,000 feet).\n\n2. **Backup requirement:** The aircraft must also carry traditional oxygen masks that cover both nose and mouth, and these must meet specific technical standards set out in the Civil Aviation Orders (section 108.26).\n\n**Why it matters:**\nNormally, aviation regulations require oxygen masks that cover the nose and mouth for safety reasons. This approval creates an exception for VH-MZB, permitting the use of lighter, more comfortable nasal cannulas — but only with the backup protection of full masks and only if the oxygen flow meets precise altitude-based specifications. This balances passenger comfort with safety requirements for high-altitude flight."}},"importantCases":[],"_links":{"self":"/api/acts/casa-323-02-approval-under-subregulation-207-2","history":"/api/acts/casa-323-02-approval-under-subregulation-207-2/history","analysis":"/api/acts/casa-323-02-approval-under-subregulation-207-2/analysis","conflicts":"/api/acts/casa-323-02-approval-under-subregulation-207-2/conflicts","importantCases":"/api/acts/casa-323-02-approval-under-subregulation-207-2/important-cases","documents":"/api/acts/casa-323-02-approval-under-subregulation-207-2/documents"}}