{"id":"F2005B00668","name":"CASA 862/99 - Approval under subregulation 207(2)","slug":"casa-862-99-approval-under-subregulation-207-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":32139,"registerId":"commonwealth-F2005B00668-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 862/99 - Approval under subregulation 207(2)","content":"INSTRUMENT NUMBER: CASA 862/99\n\nCIVIL AVIATION ACT 1988\n\nCIVIL AVIATION REGULATIONS 1988\n\nAPPROVAL UNDER SUBREGULATION 207 (2)\n\nI, DAVID ALAN VILLIERS, Acting General Manager, Airworthiness 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-SKK 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 3 litre per minute at 10,000 feet altitude, increasing by .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 D.A. Villiers\\]\n\nDavid Alan Villiers\n\nActing General Manager\n\nAirworthiness\n\n22 July 1999","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a specific single-aircraft approval (VH-SKK) issued under a delegated authority. It has not expanded beyond its original purpose of permitting an alternative oxygen delivery method for one specific aircraft with defined conditions."},"complexity_factors":["Single-purpose instrument with one clear approval and two specific conditions","Only one cross-reference (to Civil Aviation Orders section 108.26)","No defined terms section — all terms are either common aviation language or explicitly described","Simple conditional structure: approval granted subject to paragraphs (a) and (b)","Length: approximately 150 words of substantive content","No nested exceptions or complex logical operators"],"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-SKK) 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-SKK\n- Pilots and passengers using supplemental oxygen on this aircraft\n\n**The conditions:**\n\nCASA has approved this device **only if** two strict conditions are met:\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:**\n\nNormally, aviation regulations require oxygen masks that cover the nose and mouth. This approval creates an exception for VH-SKK, permitting the use of lighter, more comfortable nasal cannulas — but only with strict safety limits and only as a supplement to, not a replacement for, proper full-face masks. This reflects a balance between passenger comfort and aviation safety at high altitudes where oxygen levels are dangerously low."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument grants a specific, conditional approval for the operation of aircraft VH‑SKK with named nasal cannula oxygen units and sets technical and CAO‑referenced compliance requirements. It does not expand or alter broader regulatory obligations in the instrument text itself; it operates as a targeted, case‑specific permission rather than a change to the general scope of the Civil Aviation Regulations."},"complexity_factors":["Very narrow scope (approval applies to a single aircraft registration VH‑SKK) — lowers systemic complexity (instrument opening).","Technical performance specification: altitude‑based minimum flow‑rate schedule (0.3 L/min at 10,000 ft, +0.1 L/min per 2,000 ft up to 18,000 ft) requires measurement and verification (condition (a)).","Cross‑reference to external rules: relies on paragraph 6.1 and paragraph 5.1.2 of section 108.26 of the Civil Aviation Orders for alternative units, creating dependency on external texts not reproduced here (condition (b)).","Use of delegated administrative power under subregulation 207(2) concentrates discretion in CASA’s delegate rather than through a general legislative rule (instrument opening and signature).","Brand‑specific approval (named manufacturer/trade name “Oxymizer”) restricts applicability and may require brand‑level verification or documentation (instrument opening)."],"plain_english_summary":"This delegated CASA approval lets the single registered aircraft VH‑SKK operate using Oxymizer nasal‑cannula oxygen units, provided they meet a specified altitude‑based minimum flow profile and any alternative mouth‑and‑nose units comply with the cited Civil Aviation Orders. It directly benefits VH‑SKK’s owner/operator, who bears compliance costs (device performance, maintenance and recordkeeping), and matters because it changes what equipment that aircraft may legally carry and use."}},"importantCases":[],"_links":{"self":"/api/acts/casa-862-99-approval-under-subregulation-207-2","history":"/api/acts/casa-862-99-approval-under-subregulation-207-2/history","analysis":"/api/acts/casa-862-99-approval-under-subregulation-207-2/analysis","conflicts":"/api/acts/casa-862-99-approval-under-subregulation-207-2/conflicts","importantCases":"/api/acts/casa-862-99-approval-under-subregulation-207-2/important-cases","documents":"/api/acts/casa-862-99-approval-under-subregulation-207-2/documents"}}