{"id":"F2005B02004","name":"CASA 134/95 - Permission under subregulation 177(3)","slug":"casa-134-95-permission-under-subregulation-177-3","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":112306,"registerId":"commonwealth-F2005B02004-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 134/95 - Permission under subregulation 177(3)","content":"![](image.001.png)\n\n  \n\nCIVIL AVIATION SAFETY AUTHORITY AUSTRALIA\n\nINSTRUMENT NUMBER: CASA 134/95\n\nCIVIL AVIATION ACT 1988\n\nCIVIL AVIATION REGULATIONS\n\nPERMISSION UNDER SUBREGULATION 177 (3)\n\nI, PAUL LYNTON EYRE, Senior Airworthiness Inspector, a delegate of CASA, under subregulation 177 (3) of the Civil Aviation Regulations give permission for each aircraft listed in the Schedule to be flown under the I.F.R. without being equipped with an outside air temperature indicator as required by CASA under subregulation 177 (1A) and specified in subparagraph 1 (f) of Appendix IV to section 20.18 of the Civil Aviation Orders.\n\nThe permission for each aircraft is subject to the condition that the aircraft is only used to carry out private operations.\n\nSCHEDULE\n\nAircraft List\n\nThe aircraft bearing the nationality mark VH and the registration mark LLD. The aircraft bearing the nationality mark VH and the registration mark AKY. The aircraft bearing the nationality mark VH and the registration mark AGI. The aircraft bearing the nationality mark VH and the registration mark ONP.\n\n\\[Signed Paul L. Eyre\\]\n\nPAUL EYRE\n\nSenior Airworthiness Inspector\n\n2nd January 1996","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument does not alter the underlying regulatory framework; it exercises the delegated exemption power in subregulation 177(3) to relieve specified aircraft from the equipment requirement in subregulation 177(1A)/Appendix IV to section 20.18, subject to a private‑operations restriction."},"complexity_factors":["Delegated decision under subregulation 177(3) — single-officer administrative discretion rather than primary legislation.","Cross-reference to an equipment requirement in subregulation 177(1A) and subparagraph 1(f) of Appendix IV to section 20.18 (Civil Aviation Orders) — requires checking external instruments.","Exemption is aircraft‑specific (VH registrations LLD, AKY, AGI, ONP) — narrow, case‑by‑case scope.","Operational condition limiting use to private operations — creates an enforceable constraint on permitted activity.","Technical implication of permitting IFR flight without an outside air temperature indicator — a specified equipment exception for in‑flight operations.","No procedural detail on monitoring, revocation, or compliance checks in the instrument — implementation ambiguity."],"plain_english_summary":"CASA’s delegate used the power in subregulation 177(3) to allow four specifically listed VH‑registered aircraft to fly IFR without the outside-air-temperature indicator otherwise required by subregulation 177(1A) and Appendix IV to section 20.18 of the Civil Aviation Orders. The permission is conditional: each aircraft may only be used for private operations.\n\nMechanically, owners/operators of the named aircraft avoid the immediate equipment requirement; CASA (via its delegate) decides the exemption and must monitor compliance with the private‑operations condition."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a specific, narrow instrument granting exemption for four named aircraft. It has not expanded beyond its original purpose — it does exactly what it says on the tin."},"complexity_factors":["Single purpose document: grants one specific exemption for four named aircraft","No defined terms section — relies on external references to Civil Aviation Regulations and Civil Aviation Orders","Only one condition attached (private operations only)","Short length (approximately 200 words)","Minimal cross-referencing: references subregulation 177(3), subregulation 177(1A), and Appendix IV to section 20.18 of the Civil Aviation Orders, but these are straightforward citations rather than complex nested logic","No exceptions to exceptions or conditional clauses beyond the single operational restriction"],"plain_english_summary":"This CASA permission lets four specific aircraft (VH-LLD, VH-AKY, VH-AGI, VH-ONP) operate under Instrument Flight Rules without the normally required outside air temperature gauge. It affects the owners/operators and pilots of those aircraft and is limited to private (non-commercial) operations. It illustrates regulator flexibility to grant targeted exemptions instead of mandating equipment changes."}},"importantCases":[],"_links":{"self":"/api/acts/casa-134-95-permission-under-subregulation-177-3","history":"/api/acts/casa-134-95-permission-under-subregulation-177-3/history","analysis":"/api/acts/casa-134-95-permission-under-subregulation-177-3/analysis","conflicts":"/api/acts/casa-134-95-permission-under-subregulation-177-3/conflicts","importantCases":"/api/acts/casa-134-95-permission-under-subregulation-177-3/important-cases","documents":"/api/acts/casa-134-95-permission-under-subregulation-177-3/documents"}}