{"id":"F2006B10474","name":"AD/HS 125/35 - Cockpit Window Panel C - Life Limitation and Modification","slug":"ad-hs-125-35-cockpit-window-panel-c-life-limitation-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116211,"registerId":"commonwealth-F2006B10474-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/35 - Cockpit Window Panel C - Life Limitation and 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 125/35 Cockpit Window Panel ‘C’ - Life Limitation and Modification\n\n\n5/74\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":3,"scope_assessment":{"changed":true,"description":"The AD entry has been removed from the Schedule because the BAe 125 aircraft model is not currently on the Australian register. That removal changes the scope of regulatory effect in Australia: the directive no longer imposes active obligations on aircraft on the register (because none of that model are recorded), whereas when listed the AD would have applied to registered BAe 125 aircraft and required life‑limit and modification compliance."},"complexity_factors":["Short, narrowly focused directive title (life limitation and modification of a single component) reduces legal complexity.","Technical aviation content (component life‑limits and modifications) requires specialist maintenance/engineering interpretation.","Regulatory mechanism (Airworthiness Directive under Part 39) implicates compliance procedures and possible alternative approvals."," Applicability tied to aircraft registration status (removed from listing because model not on the register) introduces a registration‑dependant scope issue.","Absence of detailed operative text in the supplied extract (no specific life limits, modification instructions or compliance times) increases practical uncertainty and requires referral to the original AD text."],"plain_english_summary":"The AD required a life‑limit and a mandatory modification for cockpit window panel “C” on British Aerospace BAe 125 Series aircraft, imposing replacement/alteration obligations on operators, owners and maintenance organisations. It was issued by CASA as a binding safety directive.\n\nThe entry has been removed from Australia’s AD listing because the BAe 125 is not currently on the register, so the directive is not presently active against Australian‑registered aircraft."},"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is a navigation/archive stub, not substantive legislation. The actual Airworthiness Directive content has been removed, leaving only a note explaining why the entry is blank. There are no operative legal provisions to analyse.","scope_assessment":{"changed":false,"description":"The scope has not expanded; rather, it has contracted to zero as the aircraft type left the Australian register. The original scope (BAe 125 series aircraft) remains intact in principle, but there are currently no aircraft to which it applies."},"complexity_factors":["Document is essentially a placeholder/stub with no operative provisions","No defined terms, cross-references, or conditional logic present","Single sentence of substantive content explaining archival status","No legislative amendments, schedules, or operational requirements currently active"],"plain_english_summary":"This document is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for aircraft. Specifically, it relates to **British Aerospace BAe 125 series aeroplanes** (business jets).\n\n**What it was supposed to do:** The directive originally required action regarding **Cockpit Window Panel 'C'** — specifically setting a **life limitation** (maximum flying hours/cycles before replacement) and requiring **modification** of this window panel to prevent safety issues.\n\n**Current status:** The directive's contents have been **removed from the active listing** because the aircraft model (BAe 125 series) is **no longer registered in Australia**. This means there are no BAe 125 aircraft currently on the Australian civil aircraft register, so the safety requirement is no longer actively enforced.\n\n**Why this matters:** Airworthiness Directives are critical safety tools. Even though this particular AD is dormant, it illustrates how aviation safety regulation works — when aircraft types leave the fleet, associated maintenance requirements are archived rather than deleted, preserving the regulatory history."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-35-cockpit-window-panel-c-life-limitation-and-modification","history":"/api/acts/ad-hs-125-35-cockpit-window-panel-c-life-limitation-and-modification/history","analysis":"/api/acts/ad-hs-125-35-cockpit-window-panel-c-life-limitation-and-modification/analysis","conflicts":"/api/acts/ad-hs-125-35-cockpit-window-panel-c-life-limitation-and-modification/conflicts","importantCases":"/api/acts/ad-hs-125-35-cockpit-window-panel-c-life-limitation-and-modification/important-cases","documents":"/api/acts/ad-hs-125-35-cockpit-window-panel-c-life-limitation-and-modification/documents"}}