{"id":"F2006L01577","name":"CASA EX20/06 - Exemption - take-off with residual traces of frost and ice","slug":"casa-ex20-06-exemption-take-off-with-residual-traces-of-frost-and-ice","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":59257,"registerId":"commonwealth-F2006L01577-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA EX20/06 - Exemption - take-off with residual traces of frost and ice","content":"Instrument number CASA EX20/06\n\nI, BRUCE ROBERT GEMMELL, Deputy Chief Executive and Chief Operating Officer, a delegate of CASA, make this instrument under regulation 308 of the Civil Aviation Regulations 1988 (CAR 1988).\n\n\\[Signed B. Gemmell\\]\n\nBruce Gemmell\n\nDeputy Chief Executive and\n\nChief Operating Officer\n\n22 May 2006\n\nExemption — take-off with residual traces of frost and ice\n\n1 Duration\n\nThis instrument:\n\n(a) commences on 1 July 2006; and\n\n(b) stops having effect at the end of 30 June 2009.\n\n2 Application\n\nThis instrument applies only to the pilot in command of an aircraft that:\n\n(a) is engaged in regular public transport operations; and\n\n(b) has a maximum take-off weight of more than 5 700 kg.\n\n3 Exemption\n\nThe pilot in command is exempt from compliance with paragraph 244 (1) (c) of CAR 1988.\n\n4 Conditions\n\nThe exemption is subject to the conditions mentioned in Schedule 1.\n\nSchedule 1 Conditions\n\n1 In this Schedule, appropriate procedures means de-icing and anti-icing procedures that are:\n\n(a) effective in the ambient meteorological conditions and temperatures; and\n\n(b) carried out in accordance with whichever of the following is applicable to take-off in those conditions and temperatures:\n\n(i) the aircraft flight manual; or\n\n(ii) instructions and data provided by the aircraft manufacturer.\n\n2 Before taking off, the pilot in command must ensure that appropriate procedures have been used to remove from the aircraft all accumulated snow, frost and ice other than residual traces.\n\n3 Immediately before taking off, the pilot in command must be satisfied that any residual traces of snow, frost or ice will not affect the performance of:\n\n(a) the aircraft; or\n\n(b) any of its equipment or instruments.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1986},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This time-limited exemption performs exactly the function described in its title. It permits take-offs with residual frost/ice for specified aircraft types under strict safety conditions, without expanding beyond this operational purpose."},"complexity_factors":["Single defined term ('appropriate procedures') in Schedule 1","External references to aircraft flight manuals and manufacturer data","Cross-reference to Civil Aviation Regulations 1988 (regulation 308 and paragraph 244(1)(c))","Straightforward conditional logic with only three compliance requirements"],"plain_english_summary":"This exemption lets pilots-in-command of scheduled commercial aircraft (MTOW over 5,700 kg) take off with only residual traces of frost, snow or ice, despite the usual prohibition on frozen contaminants.\n\nIt applies only after effective de‑icing/anti‑icing per the aircraft flight manual or manufacturer's guidance, and when the pilot judges the remaining traces won’t affect performance or instruments. In force 1 July 2006–30 June 2009."}},"importantCases":[],"_links":{"self":"/api/acts/casa-ex20-06-exemption-take-off-with-residual-traces-of-frost-and-ice","history":"/api/acts/casa-ex20-06-exemption-take-off-with-residual-traces-of-frost-and-ice/history","analysis":"/api/acts/casa-ex20-06-exemption-take-off-with-residual-traces-of-frost-and-ice/analysis","conflicts":"/api/acts/casa-ex20-06-exemption-take-off-with-residual-traces-of-frost-and-ice/conflicts","importantCases":"/api/acts/casa-ex20-06-exemption-take-off-with-residual-traces-of-frost-and-ice/important-cases","documents":"/api/acts/casa-ex20-06-exemption-take-off-with-residual-traces-of-frost-and-ice/documents"}}