{"id":"F2006B02566","name":"AD/AUS/15 - Elevator Trimmer Guide Tubes","slug":"ad-aus-15-elevator-trimmer-guide-tubes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41822,"registerId":"commonwealth-F2006B02566-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AUS/15 - Elevator Trimmer Guide Tubes","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)  Auster/Beagle A.61 Series Aeroplanes\n\n \n\nAD/AUS/15 Elevator Trimmer Guide Tubes 9/59\n\nApplicability: Models J1, J1B, J1N, J2, J4, J5, J5B, J5P.\n\n \n\nRequirement: Action in accordance with Auster Mod. No. 3285 or Auster SB No. 41. Compliance: Forthwith.\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 text provided is a single, self-contained airworthiness directive that imposes an immediate requirement on the listed Auster models to carry out a specified modification or service-bulletin action. Nothing in the instrument indicates a change from a prior scope; based solely on the text supplied, no change from an earlier intent can be identified."},"complexity_factors":["Narrow applicability: applies to a short, specific list of Auster/Beagle A.61 models (Applicability).","Single mandatory action referenced: the AD requires compliance with a single manufacturer modification or service bulletin (Requirement).","Immediate compliance timing: \"Forthwith\" creates time pressure but no staged deadlines (Compliance).","Dependency on external technical documents: the AD delegates technical detail to Auster Mod. No. 3285 or Auster SB No. 41, requiring access to those documents (Requirement).","Limited regulatory discretion in the text: the AD prescribes the outcome (do the Mod/SB) with no stated exceptions, but leaves method and performing party to standard maintenance practice (Requirement)."],"plain_english_summary":"This AD requires owners/operators of specified Auster/Beagle A.61 models to carry out Auster Modification No. 3285 or Auster Service Bulletin No. 41 for the elevator trimmer guide tubes, immediately (“Forthwith”). Operators must obtain the referenced technical documents, arrange and pay for the work, and document compliance in maintenance records."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive from 1959 (indicated by '9/59') addressing a specific mechanical defect in specific aircraft models. It has not expanded beyond its original narrow technical scope."},"complexity_factors":["Extremely short document (under 200 words)","Only 4 defined elements: applicability (8 models), requirement (single reference to external document), compliance deadline (single word), and the subject component","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","No conditional logic or exceptions — applies to all listed models unconditionally","Single mandatory action with immediate effect","External reference to manufacturer documentation (Auster Mod. No. 3285 / SB No. 41) but no incorporation by reference complexity within the text itself"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). Think of it as a \"recall notice\" for aircraft, but legally binding.\n\n**What it does:** It requires owners and operators of specific Auster/Beagle A.61 series aeroplanes (models J1, J1B, J1N, J2, J4, J5, J5B, J5P) to inspect or modify their **elevator trimmer guide tubes**. These are mechanical components that help control the aircraft's pitch (nose up/down movement). The directive references a specific manufacturer's modification (Auster Mod. No. 3285) or service bulletin (Auster SB No. 41) that must be followed.\n\n**Who it affects:** Anyone who owns, operates, or maintains the listed Auster aircraft models — typically vintage or heritage aircraft now, given the 1959 date reference (9/59).\n\n**Why it matters:** Faulty elevator trimmer guide tubes could affect flight control, potentially leading to loss of control. The \"Forthwith\" compliance means this must be done immediately — no grace period.\n\n**Key takeaway:** If you fly or maintain one of these old Auster planes, you must check and fix the elevator trim mechanism using the manufacturer's specified procedure, and you must do it now."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aus-15-elevator-trimmer-guide-tubes","history":"/api/acts/ad-aus-15-elevator-trimmer-guide-tubes/history","analysis":"/api/acts/ad-aus-15-elevator-trimmer-guide-tubes/analysis","conflicts":"/api/acts/ad-aus-15-elevator-trimmer-guide-tubes/conflicts","importantCases":"/api/acts/ad-aus-15-elevator-trimmer-guide-tubes/important-cases","documents":"/api/acts/ad-aus-15-elevator-trimmer-guide-tubes/documents"}}