{"id":"F2006B10457","name":"AD/HS 125/18 - Flap Vane - Modification","slug":"ad-hs-125-18-flap-vane-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116177,"registerId":"commonwealth-F2006B10457-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/18 - Flap Vane - 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)  British Aerospace BAe 125 Series Aeroplanes\n\n \n\nAD/HS 125/18 Flap Vane - Modification 8/70\n\nThis AD contents has been removed from the listing because the aircraft model is not currently on the register.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\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":true,"description":"The published scope has changed from an active AD entry applicable to the BAe 125 series to an item removed from the current Schedule of Airworthiness Directives listing. The source states this removal is because the aircraft model is not currently on the Australian register; as published, the AD no longer applies to any aircraft on that register. The source does not provide detail on revocation, suspension, or conditions for reinstatement."},"complexity_factors":["Very short source text with no technical specifications","Single, narrowly targeted AD entry (BAe 125 series flap vane modification)","Administrative action only (removal from listing) rather than a technical regulatory regime","No operative compliance procedures, timelines, or cost data provided","Applicability determined by registry status (binary condition reduces complexity)"],"plain_english_summary":"The AD titled “AD/HS 125/18 — Flap Vane — Modification” for British Aerospace BAe 125 series has been removed from the published Commonwealth Schedule of Airworthiness Directives because that aircraft model is not currently on the Australian register. As a result, there is no active Australian AD listing or compliance obligation for BAe 125s now; the original AD had required a flap‑vane modification, but the source gives no technical, cost or reinstatement details."},"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is a withdrawn/removed Airworthiness Directive stub with no operative legislative content. The substantive requirements have been deleted, leaving only a placeholder explanation that the aircraft model is no longer registered. Not suitable for substantive legislative analysis.","scope_assessment":{"changed":false,"description":"Not applicable — the document contains no active legislative content to assess. The original scope (flap vane modification for BAe 125 aircraft) has been nullified by withdrawal rather than expanded."},"complexity_factors":["Document is a stub/placeholder with substantive content removed","No operative provisions, definitions, or conditional logic present","Single sentence of explanatory text only","No cross-references, schedules, or technical appendices remaining"],"plain_english_summary":"This document is an **Airworthiness Directive (AD)** — essentially a safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific fixes or changes to aircraft.\n\n**What it says:**\n- The directive (numbered AD/HS 125/18) originally applied to **British Aerospace BAe 125 series aircraft** — a type of business jet.\n- It required a **modification to the flap vane** (a part of the wing that helps control lift during takeoff and landing).\n- **However, the content has been removed** because no BAe 125 aircraft are currently registered in Australia. CASA withdrew the directive since there are no planes here that need the fix.\n\n**Who it affects:**\n- Nobody, currently — there are no affected aircraft on the Australian register.\n- Previously, it would have affected owners and operators of BAe 125 series planes.\n\n**Why it matters:**\nAirworthiness Directives are critical safety tools. They typically issue when a design flaw, wear pattern, or incident reveals a risk. Even though this particular directive is now inactive, the system ensures that if any BAe 125 were re-registered in Australia, CASA could reactivate or replace this safety requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-18-flap-vane-modification","history":"/api/acts/ad-hs-125-18-flap-vane-modification/history","analysis":"/api/acts/ad-hs-125-18-flap-vane-modification/analysis","conflicts":"/api/acts/ad-hs-125-18-flap-vane-modification/conflicts","importantCases":"/api/acts/ad-hs-125-18-flap-vane-modification/important-cases","documents":"/api/acts/ad-hs-125-18-flap-vane-modification/documents"}}