{"id":"F2006B07556","name":"AD/VAT/23 - Fuel Filter Cooling - Modification","slug":"ad-vat-23-fuel-filter-cooling-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50150,"registerId":"commonwealth-F2006B07556-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/VAT/23 - Fuel Filter Cooling - Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Victa and A.E.S.L. Airtourer Series Aeroplanes\n\n \n\nAD/VAT/23 Fuel Filter Cooling - Modification 4/65\n\nApplicability: Victa Airtourer 100 and 115. Document:  Victa Mod. No. B216.\n\nCompliance: Before 12 April 1965.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD's scope, as stated in the source, is a targeted requirement for Victa Airtourer 100 and 115 aircraft to receive the specified modification per Victa Mod. No. B216 by a fixed date. The source contains no indication that the directive's scope has been altered from that original statement."},"complexity_factors":["Narrow applicability: applies only to Victa Airtourer models 100 and 115 (explicit in source).","Single mandatory action: requires completion of Victa Mod. No. B216 (explicit in source).","Fixed compliance deadline: must be completed before 12 April 1965 (explicit in source).","Dependence on an external technical document: the AD names Victa Mod. No. B216 but does not include technical detail, so implementers must consult that external document.","Limited procedural detail in the AD: the directive does not set out certification steps, costs, or inspection requirements within the text provided."],"plain_english_summary":"This airworthiness directive requires Victa Airtourer 100 and 115 aeroplanes to be modified per Victa Modification No. B216 (fuel‑filter cooling) and completed before 12 April 1965. It affects aircraft owners/operators and the maintenance organisations that must carry out and certify the work; owners bear the cost and must meet the compliance deadline to retain airworthiness."},"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive from 1965. It has not expanded beyond its original narrow purpose of mandating a specific fuel system modification for two specific aircraft models. The scope remains precisely as originally intended."},"complexity_factors":["Extremely short document (approximately 100 words of substantive content)","No defined terms section","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Simple, unambiguous command structure: applicability + required action + deadline","Single condition (aircraft model) and single compliance requirement","No exceptions, exemptions, or conditional logic"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). \n\n**What it does:**\nIt requires owners and operators of specific light aircraft (the **Victa Airtourer 100 and 115** models) to carry out a specific modification to the fuel filter cooling system. The modification is detailed in **Victa Modification No. B216**.\n\n**Who it affects:**\nAnyone who owns, operates, or maintains these particular Victa Airtourer aircraft.\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety instructions. If you don't comply by the deadline (**before 12 April 1965**), the aircraft is not considered airworthy and cannot legally fly. This specific directive addresses a fuel filter cooling issue that, if left unaddressed, could pose a safety risk.\n\n**Key point:** This is a historical directive from 1965. While it remains part of the regulatory record, any aircraft still flying today would have had to comply with this modification decades ago."}},"importantCases":[],"_links":{"self":"/api/acts/ad-vat-23-fuel-filter-cooling-modification","history":"/api/acts/ad-vat-23-fuel-filter-cooling-modification/history","analysis":"/api/acts/ad-vat-23-fuel-filter-cooling-modification/analysis","conflicts":"/api/acts/ad-vat-23-fuel-filter-cooling-modification/conflicts","importantCases":"/api/acts/ad-vat-23-fuel-filter-cooling-modification/important-cases","documents":"/api/acts/ad-vat-23-fuel-filter-cooling-modification/documents"}}