{"id":"F2006B07574","name":"AD/VAT/4 - Outboard Elevator and Tailplane Hinge - Inspection","slug":"ad-vat-4-outboard-elevator-and-tailplane-hinge-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50183,"registerId":"commonwealth-F2006B07574-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/VAT/4 - Outboard Elevator and Tailplane Hinge - Inspection","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/4 Outboard Elevator and Tailplane Hinge - Inspection 3/63\n\nApplicability: Victa Airtourer 100 and 115 with S/Nos. 1 to 14 not incorporating Mod. B27.\n\n \n\nRequirement: Inspect the outboard elevator and tailplane hinge fittings P/N 0221012 and 0220009 for cracks, particularly in the region of the bend radius on the elevator hinge P/N 0221012.\n\n \n\nCompliance: At intervals not exceeding 25 hours time in service, after 1 September 1971.\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":3,"scope_assessment":{"changed":false,"description":"The supplied text sets a clear, narrow scope: it applies to Victa Airtourer 100 and 115 aircraft with serial numbers 1–14 that do not incorporate Mod. B27, and it requires inspections of specified hinge part numbers at intervals not exceeding 25 hours after 1 September 1971. There is no indication in the supplied instrument that this scope has been altered from an earlier or different intent."},"complexity_factors":["Narrow, machine-specific applicability (Victa Airtourer 100 and 115, S/N 1–14) reduces generality but increases precision","Identifies specific part numbers (P/N 0221012 and 0220009) and a precise crack location (bend radius on elevator hinge), requiring technical inspection skills","Short, regular compliance interval (every ≤25 hours) creates recurring operational and maintenance burden","Excludes aircraft with Mod. B27, creating a binary scope condition that operators must verify","Absence of prescribed inspection method, acceptance criteria or mandated corrective action introduces procedural ambiguity and increases reliance on maintenance judgement"],"plain_english_summary":"This AD requires inspections of the outboard elevator hinge (p/n 0221012) and tailplane hinge (p/n 0220009) on Victa/A.E.S.L. Airtourer 100 and 115 aircraft, serials 1–14 without Mod B27, at intervals not exceeding 25 flight hours (from 1 Sept 1971) to detect cracking. \n\nOwners/operators pay for inspections, testing and repairs; the directive does not specify inspection methods, acceptance criteria, or mandatory corrective actions, leaving those decisions to maintenance personnel."},"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific airworthiness concern on specific aircraft. It has not expanded beyond its original purpose of mandating inspection of suspect hinge fittings on early Victa Airtourer aircraft."},"complexity_factors":["Single, specific applicability clause (2 aircraft models, specific serial number range, specific modification exclusion)","Single, clear requirement (visual inspection for cracks at specific location)","Simple compliance condition (time-based interval: 25 hours time in service)","No defined terms section","No cross-references to other legislation or technical standards","No conditional logic or exceptions","Extremely short document (approximately 100 words of substantive content)"],"plain_english_summary":"This is a **safety inspection rule** (called an \"Airworthiness Directive\") for a specific type of light aircraft made in Australia.\n\n**What it does:**\nIt requires owners and operators of early-model **Victa Airtourer 100 and 115** aeroplanes (serial numbers 1 to 14 only) to regularly check two specific metal parts on the tail of the aircraft:\n- The outboard elevator hinge fitting (part number 0221012)\n- The tailplane hinge fitting (part number 0220009)\n\n**What they're looking for:**\nCracks, especially where the metal bends on the elevator hinge. These parts are critical for controlling the aircraft's pitch (up and down movement).\n\n**How often:**\nEvery 25 hours of flying time, starting from 1 September 1971.\n\n**Who it affects:**\nAnyone who owns or operates these specific early Victa Airtourer aircraft that haven't been modified with \"Mod. B27\" (a design fix that likely solved this problem).\n\n**Why it matters:**\nIf these hinges crack and fail, the pilot could lose control of the aircraft's elevator — the moving surface that makes the plane climb or descend. This could cause a crash. The rule ensures potential cracks are caught before they become dangerous."}},"importantCases":[],"_links":{"self":"/api/acts/ad-vat-4-outboard-elevator-and-tailplane-hinge-inspection","history":"/api/acts/ad-vat-4-outboard-elevator-and-tailplane-hinge-inspection/history","analysis":"/api/acts/ad-vat-4-outboard-elevator-and-tailplane-hinge-inspection/analysis","conflicts":"/api/acts/ad-vat-4-outboard-elevator-and-tailplane-hinge-inspection/conflicts","importantCases":"/api/acts/ad-vat-4-outboard-elevator-and-tailplane-hinge-inspection/important-cases","documents":"/api/acts/ad-vat-4-outboard-elevator-and-tailplane-hinge-inspection/documents"}}