{"id":"F2016L01281","name":"CASA EX125/16 - Exemption — Mode S transponder equipment","slug":"casa-ex125-16-exemption-mode-s-transponder-equipment","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":94745,"registerId":"commonwealth-F2016L01281-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA EX125/16 - Exemption — Mode S transponder equipment","content":"Instrument number CASA EX125/16\n\nI, MARK ALAN SKIDMORE, Director of Aviation Safety, on behalf of CASA, make this instrument under regulation 11.160 of the Civil Aviation Safety Regulations 1998.\n\n\\[Signed M. Skidmore\\]\n\nMark Skidmore AM  \nDirector of Aviation Safety\n\n12 August 2016\n\nExemption — Mode S transponder equipment\n\n1 Duration\n\nThis instrument:\n\n(a) commences on 19 August 2016; and\n\n(b) is repealed at the end of 20 August 2016.\n\n2 Application\n\nThis instrument applies to the operator of an aircraft that:\n\n(a) is operated at the Brisbane aerodrome on 19 and 20 August 2016 for the purpose of participating in the Aviation Careers Expo held at the airport on those days; and\n\n(b) does not meet the requirements relating to Mode S transponder equipment mentioned in paragraph 9E.4 of Civil Aviation Order 20.18 (CAO 20.18), as in force from time to time.\n\n3 Exemption and conditions\n\nThe operator of the aircraft is exempt from compliance with paragraph 9E.4 of CAO 20.18, subject to the following conditions:\n\n(a) the operator must ensure that the aircraft is equipped with a transponder that meets the requirements for operation in the airspace over Brisbane aerodrome;\n\n(b) the operator must ensure that item 18 of the flight plan seeking clearance for the aircraft during the operations includes the text:\n\n“RMK/CASA MODE S EXEMPT”.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1923},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument maintains its original narrow scope as a temporary exemption for a specific aviation event, limited to 48 hours and a single location."},"complexity_factors":["Extremely narrow temporal scope (48-hour duration only)","Single location and single event application (Brisbane Airport, Aviation Careers Expo)","No defined terms or interpretation section","Simple two-condition exemption structure","Only one external legislative reference (CAO 20.18)"],"plain_english_summary":"This instrument grants a 48‑hour waiver of the advanced Mode S transponder requirement at Brisbane Airport for aircraft participating in the Aviation Careers Expo (19–20 Aug 2016). It affects operators whose aircraft lack Mode S equipment, allowing flight with a basic working transponder so long as they include \"RMK/CASA MODE S EXEMPT\" in item 18 of the flight plan to notify ATC."}},"importantCases":[],"_links":{"self":"/api/acts/casa-ex125-16-exemption-mode-s-transponder-equipment","history":"/api/acts/casa-ex125-16-exemption-mode-s-transponder-equipment/history","analysis":"/api/acts/casa-ex125-16-exemption-mode-s-transponder-equipment/analysis","conflicts":"/api/acts/casa-ex125-16-exemption-mode-s-transponder-equipment/conflicts","importantCases":"/api/acts/casa-ex125-16-exemption-mode-s-transponder-equipment/important-cases","documents":"/api/acts/casa-ex125-16-exemption-mode-s-transponder-equipment/documents"}}