{"id":"F2005B00682","name":"CASA 1073/99 - Approval under subregulation 207(2)","slug":"casa-1073-99-approval-under-subregulation-207-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":32155,"registerId":"commonwealth-F2005B00682-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 1073/99 - Approval under subregulation 207(2)","content":"INSTRUMENT NUMBER: CASA 1073/99\n\nCIVIL AVIATION ACT 1988\n\nCIVIL AVIATION REGULATIONS 1988\n\nAPPROVAL UNDER SUBREGULATION 207 (2)\n\nI, EUGENE HOLZAPFEL, Manager, Technical Specialists, 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-BNL 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\nManager Technical Specialists\n\nCertification Standards\n\n25 November 1999","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a specific individual approval instrument issued under subregulation 207(2) of the Civil Aviation Regulations 1988. Such instruments are inherently narrow in scope by design, applying only to the specific aircraft (VH-BNL) and specific equipment (Oxymizer nasal cannulas) named in the approval. There is no indication of scope creep; the instrument performs exactly the limited function it was intended for."},"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 subregulation 207(2) and Civil Aviation Orders section 108.26)","Simple conditional structure (paragraphs (a) and (b)) with no nested exceptions","Length: approximately 150 words","Technical but precise language appropriate for aviation safety context"],"plain_english_summary":"This is a specific approval issued by the Civil Aviation Safety Authority (CASA) allowing a particular aircraft (registration VH-BNL) to use a specific type of oxygen delivery device called an \"Oxymizer\" for passengers or crew.\n\n**What it does:**\nNormally, aviation oxygen equipment must cover both the nose and mouth. This approval creates an exception for aircraft VH-BNL, permitting the use of nasal cannulas (tubes that sit in the nostrils) instead of full face masks, but only under strict conditions.\n\n**Who it affects:**\n- The operator of aircraft VH-BNL (likely an airline or charter company)\n- Passengers and crew on that specific aircraft who need supplemental oxygen\n\n**The conditions:**\n- The Oxymizer units must deliver minimum oxygen flow rates that increase with altitude (starting at 0.3 litres per minute at 10,000 feet, rising by 0.1 litres per minute for every 2,000 feet up to 18,000 feet)\n- The aircraft must still carry backup oxygen masks that cover both nose and mouth, and these must meet standard aviation safety requirements\n\n**Why it matters:**\nThis is a tailored safety exemption. It allows more comfortable nasal oxygen delivery while ensuring safety by requiring backup full-coverage masks and specific flow rates to prevent hypoxia (lack of oxygen) at high altitudes."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This instrument creates a specific approval under subregulation 207(2) allowing aircraft VH-BNL to operate with Oxymizer nasal-cannula individual oxygen units subject to the stated conditions (see opening line; paragraphs (a) and (b)). Functionally, it adjusts the application of the Regulations to permit a named alternative oxygen-dispensing configuration for that registration, while leaving the wider regulatory scheme and other operators unaffected."},"complexity_factors":["Approval is aircraft-specific (applies only to VH-BNL) which narrows application but requires tracking of registration-specific approvals.","Altitude-dependent flow-rate formula in condition (a) (0.3 L/min at 10,000 ft, +0.1 L/min per 2,000 ft to 18,000 ft) creates a technical compliance requirement tied to operating altitude.","Condition (b) cross-references external material (paragraph 6.1 and 5.1.2 of section 108.26 of the Civil Aviation Orders), creating dependency on another instrument for substantive requirements.","Issued under delegated authority (subregulation 207(2))—administrative discretion and record-keeping are implicated.","Limited number of operative clauses and short form reduce drafting complexity, but practical compliance may require technical measurement, documentation and equipment choices."],"plain_english_summary":"This instrument authorises one registered aircraft (VH-BNL) to operate using Oxymizer nasal‑cannula oxygen units, subject to minimum altitude‑linked flow performance and conformity of any other individual oxygen devices with the cited Civil Aviation Orders.  \n\nIt primarily affects the aircraft operator (responsible for providing compliant equipment), crew and passengers who use the units, and records the CASA delegate’s exercise of delegated approval; the operator bears acquisition, maintenance and compliance costs."}},"importantCases":[],"_links":{"self":"/api/acts/casa-1073-99-approval-under-subregulation-207-2","history":"/api/acts/casa-1073-99-approval-under-subregulation-207-2/history","analysis":"/api/acts/casa-1073-99-approval-under-subregulation-207-2/analysis","conflicts":"/api/acts/casa-1073-99-approval-under-subregulation-207-2/conflicts","importantCases":"/api/acts/casa-1073-99-approval-under-subregulation-207-2/important-cases","documents":"/api/acts/casa-1073-99-approval-under-subregulation-207-2/documents"}}