{"id":"F2026L00161","name":"CASA EX19/26 — Authorised Maintenance at Unapproved Locations (Part 145 Organisations) Exemption 2026","slug":"casa-ex19-26-authorised-maintenance-at-unapproved-locations-part-145-organisations-exemption-2026","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":107740,"registerId":"commonwealth-F2026L00161-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA EX19/26 — Authorised Maintenance at Unapproved Locations (Part 145 Organisations) Exemption 2026","content":"Instrument number CASA EX19/26\n\nI, Daniel bernard o’hagan, Section Manager Drafting, Legal Division, a delegate of CASA, make this instrument under regulations 11.160 and 11.205 of the Civil Aviation Safety Regulations 1998.\n\n\\[Signed D.B. O’Hagan\\]\n\nDanny O’Hagan  \nSection Manager Drafting  \nLegal Division\n\n24 February 2026\n\nCASA EX19/26 — Authorised Maintenance at Unapproved Locations (Part 145 Organisations) Exemption 2026\n\n1 Name\n\nThis instrument is CASA EX19/26 — Authorised Maintenance at Unapproved Locations (Part 145 Organisations) Exemption 2026.\n\n2 Duration\n\nThis instrument:\n\n(a) commences on 1 March 2026; and\n\n(b) is repealed at the end of 28 February 2029.\n\n3 Definitions\n\n> Note In this instrument, certain terms and expressions have the same meaning as they have in the Civil Aviation Act 1988 and the regulations. These include: Part 145 organisation.\n\nIn this instrument:\n\n> AMO means a Part 145 organisation.\n\n> AMO aircraft, in relation to an AMO, means an aircraft for which the AMO provides maintenance services under its exposition.\n\n> authorised maintenance, in relation to an AMO and location, means maintenance services provided by the AMO in relation to an AMO aircraft:\n\n(a) that consist of the following:\n\n(i) line maintenance for the AMO;\n\n> Note In Part 3 of the CASR Dictionary, line maintenance, for an AMO, means maintenance on an aircraft that CASA has approved in the organisation’s exposition as being line maintenance for the organisation.\n\n(ii) if the AMO holds a category B rating — on-wing maintenance on an installed engine as may be required in connection with the line maintenance;\n\n(iii) if the AMO holds a category C rating — on-wing maintenance on an installed aeronautical product as may be required in connection with the line maintenance; and\n\n(b) that are conducted at the location on a temporary basis.\n\n> Part 145 MOS means the Part 145 Manual of Standards.\n\n> unapproved location, in relation to an AMO, means a location that is capable of supporting line maintenance, but not specified as such in the AMO’s exposition as required by subparagraph 145.A.70(a)10 of the Part 145 MOS.\n\n4 Exemption — authorised maintenance at unapproved location\n\n(1) An AMO is exempt from compliance with:\n\n(a) subparagraphs 145.045(a)(iv) and (v), and paragraph 145.045(b) of CASR; and\n\n(b) paragraphs 145.070(1)(d) and (e) of CASR;\n\n(when taken together with section 145.A.75 and Appendix I of the Part 145 MOS) to the extent that the AMO may carry out authorised maintenance on an AMO aircraft at an unapproved location.\n\n> Note An AMO may already, under the privileges in paragraph 145.A.75(b) of the Part 145 MOS, provide maintenance services for an aircraft or aeronautical product at an unapproved location if the aircraft is unserviceable or if the maintenance is unscheduled line maintenance, subject to the AMO’s approval and exposition.\n\n(2) The AMO must ensure compliance with the conditions of exemption in section 6.\n\n5 Exemptions — significant change\n\n(1) An AMO is exempt from compliance with subregulations 145.050(1), (2) and (3) of CASR (when taken together with paragraph (b) of the definition of significant change in subregulation 145.010(2) of CASR) to the extent that the AMO may carry out authorised maintenance on an AMO aircraft at an unapproved location without first having applied, or received CASA’s approval, for the significant change in relation to the location.\n\n(2) An AMO is exempt from compliance with subregulations 145.050(1), (2) and (3) of CASR (when taken together with paragraph (b) of the definition of significant change in subregulation 145.010(2) of CASR) to the extent that the AMO may carry out maintenance described in paragraph 145.A.75(b) of the Part 145 MOS on an AMO aircraft at an unapproved location without first having applied, or received CASA’s approval, for the significant change in relation to the location.\n\n6 Conditions\n\nThe following conditions apply in relation to the maintenance mentioned in subsection 4(1):\n\n(a) the maintenance must be of a kind authorised by the AMO’s exposition as appropriate to be performed at an unapproved location of that kind;\n\n(b) the AMO’s exposition must include detailed procedures for:\n\n(i) carrying out maintenance of that kind at an unapproved location of that kind; and\n\n(ii) record keeping for maintenance of that kind; and\n\n(iii) selecting suitable locations for carrying out maintenance of that kind;\n\n> Note The inclusion in an AMO’s exposition of the procedures required under paragraph (b) constitutes a change to procedures mentioned in paragraph (f) of the definition of significant change in subregulation 145.010(2) of CASR and requires CASA’s approval under regulation 145.050.\n\n(c) the maintenance must be performed in accordance with the AMO’s quality and safety management systems and the procedures and other conditions applying to the maintenance under the AMO’s exposition;\n\n(d) records of the maintenance carried out must be kept in accordance with the record keeping procedures in the AMO’s exposition for maintenance of that kind;\n\n(e) information must be provided to CASA, on request, relating to:\n\n(i) any unapproved location at which the maintenance is carried out; and\n\n(ii) any maintenance carried out at the unapproved location.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"The instrument maintains a focused scope on temporary maintenance at unapproved locations for Part 145 organisations. It does not expand beyond this specific operational flexibility and explicitly preserves existing emergency maintenance provisions."},"complexity_factors":["Multiple nested defined terms requiring cross-referencing to external regulations (CASR, Part 145 MOS, Civil Aviation Act 1988)","Conditional logic based on organisation ratings (Category B vs Category C) affecting scope of permitted maintenance","Dual exemption structure — section 4 exempts from location requirements, section 5 exempts from 'significant change' approval requirements","Extensive cross-referencing to specific subparagraphs and paragraphs of CASR and Part 145 MOS (at least 8 distinct regulatory references)","Note clauses that create interpretive complexity by distinguishing this exemption from existing privileges in paragraph 145.A.75(b)","Self-referential conditions in section 6 that require compliance with exposition procedures that themselves trigger other regulatory requirements"],"plain_english_summary":"**What this does:**\n\nThis instrument gives aircraft maintenance organisations (called \"Part 145 organisations\" or AMOs) permission to perform certain routine maintenance work at locations that aren't officially listed in their approved documentation — but only under strict conditions.\n\nNormally, maintenance organisations can only work at specific locations that CASA (the aviation safety regulator) has approved and listed in their \"exposition\" (a detailed manual showing what they can do and where). This exemption relaxes that rule temporarily.\n\n**Who it affects:**\n\n- **Part 145 maintenance organisations** — companies approved to maintain aircraft\n- **Aircraft operators** who use these maintenance services\n- **CASA** — which oversees compliance\n\n**What maintenance is covered:**\n\nThe exemption applies to \"authorised maintenance\" — specifically:\n- **Line maintenance** (routine checks and minor repairs, like what happens between flights)\n- **On-wing engine work** (if the organisation has a Category B rating)\n- **On-wing component work** (if the organisation has a Category C rating)\n\n**Key conditions:**\n\nThe organisation must:\n- Already have procedures in their manual for this type of work at unapproved locations\n- Follow their quality and safety systems\n- Keep proper records\n- Provide information to CASA if asked\n\n**Important note:**\n\nThis doesn't cover emergency repairs when an aircraft breaks down. Those were already allowed under existing rules. This covers *planned* temporary maintenance at locations not on the official list.\n\n**Why it matters:**\n\nThis gives maintenance organisations flexibility to work temporarily at new or different locations (like a regional airport or temporary base) without going through a lengthy approval process each time — provided they have proper procedures in place. It runs from **1 March 2026 to 28 February 2029**."},"summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument creates a new time-limited exemption for Part 145 organisations to carry out temporary line maintenance at unapproved locations, subject to conditions."},"complexity_factors":["Multiple legislative references across CASR and Part 145 MOS","Interaction between exemption, exposition requirements, and existing privileges","Use of defined terms such as 'authorised maintenance', 'unapproved location' and 'significant change'"],"plain_english_summary":"This instrument, CASA EX19/26, grants an exemption to Part 145 approved maintenance organisations (AMOs) that hold a line maintenance approval. Normally, an AMO must only carry out maintenance at locations specified in its exposition (its approved procedures manual). This exemption allows an AMO to perform certain line maintenance on its own aircraft at an “unapproved location” (a location capable of supporting line maintenance but not listed in the exposition) on a temporary basis, without first obtaining CASA approval for each location as a significant change.\n\nThe exemption applies from 1 March 2026 to 28 February 2029. It covers line maintenance, and if the AMO holds the relevant ratings, on-wing engine or aeronautical product maintenance connected with that line maintenance. It does not remove the need for the AMO to have detailed procedures in its exposition covering: how it will select suitable unapproved locations, how it will carry out such maintenance, and how it will keep records. Those procedures themselves must be approved by CASA as a change to the exposition.\n\nThe main conditions require that the maintenance be of a type the AMO’s exposition identifies as suitable for an unapproved location, be conducted in line with the AMO’s quality and safety management systems, be properly recorded, and that the AMO must give CASA information about the locations and the maintenance on request. The exemption does not override the existing privilege that allows an AMO to do unscheduled line maintenance or fix an unserviceable aircraft at any location.\n\nIn practice, this gives AMOs more operational flexibility to do planned line maintenance away from their approved bases without a separate approval step, while still ensuring safety through robust internal procedures."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/casa-ex19-26-authorised-maintenance-at-unapproved-locations-part-145-organisations-exemption-2026","history":"/api/acts/casa-ex19-26-authorised-maintenance-at-unapproved-locations-part-145-organisations-exemption-2026/history","analysis":"/api/acts/casa-ex19-26-authorised-maintenance-at-unapproved-locations-part-145-organisations-exemption-2026/analysis","conflicts":"/api/acts/casa-ex19-26-authorised-maintenance-at-unapproved-locations-part-145-organisations-exemption-2026/conflicts","importantCases":"/api/acts/casa-ex19-26-authorised-maintenance-at-unapproved-locations-part-145-organisations-exemption-2026/important-cases","documents":"/api/acts/casa-ex19-26-authorised-maintenance-at-unapproved-locations-part-145-organisations-exemption-2026/documents"}}