{"id":"F2006B10460","name":"AD/HS 125/20 - Flight Controls - Airbrake - Modification","slug":"ad-hs-125-20-flight-controls-airbrake-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116183,"registerId":"commonwealth-F2006B10460-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/20 - Flight Controls - Airbrake - 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 125/20 Flight Controls - Airbrake - Modification 3/71\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 scope of regulatory effect as presented in this listing has been narrowed: the AD entry for the BAe 125 airbrake modification has been removed from the schedule on the stated ground that the aircraft model is not currently on the register, so it does not currently apply to any Australian-registered aircraft (Source: \"This AD contents has been removed from the listing because the aircraft model is not currently on the register.\")."},"complexity_factors":["Single substantive statement: removal from listing due to model not being on the register.","No operative requirements, deadlines, or technical modification details provided in the supplied text.","Limited cross-references or legal citations beyond the general header (Civil Aviation Regulations 1998, Part 39).","Ambiguity about permanence or re-listing criteria due to absence of explanatory detail."],"plain_english_summary":"This AD concerned a BAe 125 flight‑controls (airbrake) modification but has been removed from the Civil Aviation Safety Authority listing because the BAe 125 is not currently on the Australian register. As a result, the entry imposes no active listing‑level obligations on Australian‑registered BAe 125s; the notice gives no compliance, cost, or permanence details."},"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is a navigation page/placeholder stub with no substantive legislative content. The actual Airworthiness Directive requirements have been removed, leaving only a note explaining why the content is absent. There is no operative law to analyse.","scope_assessment":{"changed":false,"description":"This appears to be an administrative placeholder rather than an expanded legislative instrument. The scope has narrowed to zero (no active requirements) due to lack of registered aircraft, but this is a factual/administrative change rather than legislative scope creep."},"complexity_factors":["Document is essentially a placeholder/stub with no operative provisions","Zero defined terms in the substantive content","No conditional logic, cross-references, or procedural requirements present","Consists of a single explanatory sentence stating the content has been removed","Extensive whitespace padding suggesting automated document generation"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific fixes or inspections on aircraft.\n\n**What it covers:** British Aerospace BAe 125 series business jets, specifically regarding modifications to the **airbrake** (a panel on the wing that pops up to slow the aircraft down after landing).\n\n**What it does:** The directive originally required some kind of modification to the flight controls related to the airbrake system. However, **the actual requirements have been removed from the current document** because no BAe 125 aircraft are currently registered in Australia.\n\n**Who it affects:** Aircraft owners, operators, and maintenance engineers — but currently **nobody**, since the aircraft type isn't on the Australian register.\n\n**Why it matters:** Airworthiness Directives are legally binding safety instructions. Even though this one is dormant, it remains on the books. If a BAe 125 were ever re-registered in Australia, CASA would need to reactivate or replace this directive to ensure the airbrake modification requirement is met."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-20-flight-controls-airbrake-modification","history":"/api/acts/ad-hs-125-20-flight-controls-airbrake-modification/history","analysis":"/api/acts/ad-hs-125-20-flight-controls-airbrake-modification/analysis","conflicts":"/api/acts/ad-hs-125-20-flight-controls-airbrake-modification/conflicts","importantCases":"/api/acts/ad-hs-125-20-flight-controls-airbrake-modification/important-cases","documents":"/api/acts/ad-hs-125-20-flight-controls-airbrake-modification/documents"}}