{"id":"F2006B07568","name":"AD/VAT/34 - Aileron Control Leaf Springs - Installation","slug":"ad-vat-34-aileron-control-leaf-springs-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50164,"registerId":"commonwealth-F2006B07568-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/VAT/34 - Aileron Control Leaf Springs - Installation","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/34 Aileron Control Leaf Springs - Installation 11/69\n\nApplicability: Airtourer 100 and 115.\n\n \n\nDocument: Aero Engine Services Ltd. SB No. 001. Compliance: Before 1 August 1969.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-limited safety directive from 1969. It has not expanded beyond its original narrow purpose of mandating a specific hardware modification to two specific aircraft models."},"complexity_factors":["Extremely short document — only 4 substantive lines of regulatory text","No defined terms section — all language is plain technical aviation terminology","Single, unambiguous compliance requirement with one deadline","No cross-references to other legislation or regulations beyond the enabling Civil Aviation Regulations 1988","No conditional logic, exceptions, or nested provisions","Simple binary applicability test (aircraft model either matches or doesn't)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1988.\n\n**What it does:**\n- Requires owners/operators of specific light aircraft (the **Airtourer 100 and 115** models, made by Victa and A.E.S.L.) to install modified **aileron control leaf springs** — these are metal strips that help control the small wing flaps (ailerons) that make the plane turn.\n\n**Who it affects:**\n- Anyone who owns or operates an Airtourer 100 or 115 aircraft in Australia.\n\n**Why it matters:**\n- The original leaf springs were apparently faulty or unsafe. This directive forces a fix before a deadline (**1 August 1969**) to prevent potential loss of control during flight.\n\n**How to comply:**\n- Follow the instructions in **Aero Engine Services Ltd. Service Bulletin No. 001** — a technical notice from the manufacturer explaining exactly how to install the replacement parts."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Based on the supplied text, the directive sets a clear, narrow scope (apply installation per Aero Engine Services Ltd. SB No. 001 to Airtourer 100 and 115 by 1 August 1969). There is no indication in the provided material that the scope has been altered from an original intent; the AD as presented is a single, targeted technical requirement."},"complexity_factors":["Very narrow applicability: applies only to Airtourer 100 and 115 (low scope breadth).","Single, time-limited action referenced to an external service bulletin (simple directive but dependent on SB content).","Lack of technical detail in the AD text increases reliance on the referenced SB for implementation specifics.","No alternative compliance, exemption, or enforcement detail provided in the supplied text (reduces interpretive complexity but increases practical risk if SB is unavailable).","Historical compliance deadline (fixed date) simplifies legal assessment but may complicate retrospective implementation if compliance now overdue."],"plain_english_summary":"The CAA requires owners/operators of Victa/A.E.S.L. Airtourer 100 and 115 aeroplanes to install a specified aileron control leaf spring in accordance with Aero Engine Services Ltd. SB No. 001, with compliance compulsory before 1 August 1969. This AD shifts cost and scheduling burdens to the aircraft owners/operators, who must arrange parts and maintenance to meet the fixed deadline; the directive itself prescribes the required configuration change."}},"importantCases":[],"_links":{"self":"/api/acts/ad-vat-34-aileron-control-leaf-springs-installation","history":"/api/acts/ad-vat-34-aileron-control-leaf-springs-installation/history","analysis":"/api/acts/ad-vat-34-aileron-control-leaf-springs-installation/analysis","conflicts":"/api/acts/ad-vat-34-aileron-control-leaf-springs-installation/conflicts","importantCases":"/api/acts/ad-vat-34-aileron-control-leaf-springs-installation/important-cases","documents":"/api/acts/ad-vat-34-aileron-control-leaf-springs-installation/documents"}}