{"id":"F2006B10480","name":"AD/HS 125/41 Amdt 1 - Canopy Post A-B - Fail Safe Links","slug":"ad-hs-125-41-amdt-1-canopy-post-a-b-fail-safe-links","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116223,"registerId":"commonwealth-F2006B10480-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/41 Amdt 1 - Canopy Post A-B - Fail Safe Links","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 125/41\n\nAmdt 1\n\n\nCanopy Post A-B - Fail Safe Links 8/90\n\n \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","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The entry has been changed from an active airworthiness directive entry for the BAe 125 (Canopy Post A-B — Fail Safe Links) to removed status in the Schedule of Airworthiness Directives, on the stated ground that the aircraft model is not currently on the Australian register. Mechanically, this narrows current regulatory scope to no active obligations under this AD in Australia while the model remains unregistered; the original AD content is not present in the provided text."},"complexity_factors":["Very short instrument containing only a removal statement and a single reason.","Narrow scope: applies to a single aircraft model and a specific AD entry.","No operative technical requirements or procedures are present in the text.","Applicability depends entirely on the registration status of the aircraft model (administrative condition)."],"plain_english_summary":"The instrument removes the airworthiness directive \"AD/HS 125/41 Amdt 1 — Canopy Post A-B - Fail Safe Links (8/90)\" from CASA’s Schedule because BAe 125 series aircraft are not currently on the Australian register. This means no active compliance obligations or costs in Australia under this AD while the model remains unregistered, though CASA could relist the AD if the type returns to the register."},"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is a navigation stub/placeholder page, not substantive legislation. It contains no operative provisions, only a note that content has been removed because the aircraft model is not on the Australian register. There is no actual Airworthiness Directive text to analyse.","scope_assessment":{"changed":false,"description":"Not applicable — the document contains no operative provisions to assess for scope creep. The removal of content due to zero registered aircraft represents administrative housekeeping rather than substantive scope change."},"complexity_factors":["Document is essentially a stub/placeholder with no operative provisions","No defined terms, cross-references, or conditional logic present","Consists of a single explanatory sentence about removal from listing","No substantive regulatory content to analyse"],"plain_english_summary":"This document is an **Airworthiness Directive (AD)** — a mandatory safety notice issued by the Civil Aviation Safety Authority (CASA) that requires aircraft owners or operators to inspect or fix specific problems.\n\n**What it covers:**\n- **Aircraft type:** British Aerospace BAe 125 series business jets\n- **Specific issue:** \"Canopy Post A-B - Fail Safe Links\" — this refers to structural safety links in the aircraft's canopy (cockpit roof) support posts that are designed to prevent catastrophic failure if the main structure is compromised\n- **Original issue date:** August 1990 (indicated by \"8/90\")\n\n**Current status:**\nThe directive has been **removed from active listings** because no BAe 125 aircraft are currently registered in Australia. This means the safety requirement no longer applies domestically since there are no affected planes to maintain.\n\n**Why it matters:**\nAirworthiness Directives are critical safety tools. Even though this particular AD is inactive in Australia, it illustrates how aviation regulators track aircraft fleets and retire requirements when they become irrelevant — keeping the regulatory framework clean and focused on actual risks."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-41-amdt-1-canopy-post-a-b-fail-safe-links","history":"/api/acts/ad-hs-125-41-amdt-1-canopy-post-a-b-fail-safe-links/history","analysis":"/api/acts/ad-hs-125-41-amdt-1-canopy-post-a-b-fail-safe-links/analysis","conflicts":"/api/acts/ad-hs-125-41-amdt-1-canopy-post-a-b-fail-safe-links/conflicts","importantCases":"/api/acts/ad-hs-125-41-amdt-1-canopy-post-a-b-fail-safe-links/important-cases","documents":"/api/acts/ad-hs-125-41-amdt-1-canopy-post-a-b-fail-safe-links/documents"}}