{"id":"F2006B02412","name":"AD/ANSON/15 Amdt 1 - Mainplane - Inspection","slug":"ad-anson-15-amdt-1-mainplane-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41655,"registerId":"commonwealth-F2006B02412-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ANSON/15 Amdt 1 - Mainplane - 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)  Avro Anson and Avro 19 Series Aeroplanes\n\n \n\n# AD/ANSON/15\n\nAmdt 1\n\nApplicability: Anson and Avro 19.\n\n# Mainplane - Inspection 11/67\n\n \n\nDocument: Avro TSB No. 80 paragraph 3.11.\n\n \n\nCompliance: At intervals not exceeding 100 hours time in service.\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, single-purpose maintenance directive. It has not expanded beyond its original intent of mandating wing inspections for specific vintage aircraft. As Amendment 1, it represents a revision to the original AD/ANSON/15, but the core scope (mainplane inspection requirements) remains unchanged."},"complexity_factors":["Extremely short document (approximately 150 words)","No defined terms section — all language is plain operational English","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Single, unambiguous compliance requirement (100-hour interval)","No conditional logic, exceptions, or nested provisions","Refers to external technical document (Avro TSB No. 80) but does not reproduce its content"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) that requires owners and operators of specific aircraft to perform specific maintenance actions.\n\n**What it does:**\n- **Applies to:** Avro Anson and Avro 19 series aeroplanes (twin-engine British aircraft from the 1930s-40s, historically used for training and transport).\n- **Requires:** Inspection of the **mainplane** (the main wing structure of the aircraft).\n- **How often:** Every 100 hours of \"time in service\" (meaning actual flight hours, not calendar time).\n- **Based on:** Avro Technical Service Bulletin (TSB) No. 80, paragraph 3.11 — essentially the manufacturer's official maintenance guidance.\n\n**Why it matters:** Airworthiness Directives are legally binding. If you own or operate one of these aircraft, you **must** comply with this inspection schedule or the aircraft cannot legally fly. This particular directive addresses potential structural issues in the wing — critical for safety. Non-compliance means the aircraft is not airworthy.\n\n**Who needs to know:** Aircraft owners, maintenance engineers, pilots, and operators of vintage Avro aircraft in Australia."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument itself states its applicability (Anson and Avro 19) and the required inspection interval (not exceeding 100 hours time in service). There is no statement within this text indicating a change to the scope from a prior instrument; the directive presents a single, explicit inspection obligation and a reference technical bulletin as the procedural source."},"complexity_factors":["Single, narrowly framed requirement (one recurring inspection) — low legislative branching","Clear applicability limited to two aircraft types (Anson and Avro 19) — narrow scope","Procedure delegated to a single referenced technical bulletin (Avro TSB No. 80 para 3.11) — reduces text complexity but creates dependency","Prescribes a simple numeric interval (100 hours TIS) — low interpretive ambiguity","Does not specify detailed recordkeeping, tolerances, or enforcement mechanisms within the instrument — minor practical implementation questions remain"],"plain_english_summary":"This directive requires owners and operators of Avro Anson and Avro 19 aeroplanes to carry out recurring mainplane inspections following Avro TSB No. 80 paragraph 3.11, at intervals not exceeding 100 hours time in service. It affects aircraft operators, maintenance organisations and licensed personnel, creating a recurring compliance and cost burden (inspection labour, potential repairs and downtime) while relying on the referenced TSB for technical detail."}},"importantCases":[],"_links":{"self":"/api/acts/ad-anson-15-amdt-1-mainplane-inspection","history":"/api/acts/ad-anson-15-amdt-1-mainplane-inspection/history","analysis":"/api/acts/ad-anson-15-amdt-1-mainplane-inspection/analysis","conflicts":"/api/acts/ad-anson-15-amdt-1-mainplane-inspection/conflicts","importantCases":"/api/acts/ad-anson-15-amdt-1-mainplane-inspection/important-cases","documents":"/api/acts/ad-anson-15-amdt-1-mainplane-inspection/documents"}}