{"id":"F2006B10520","name":"AD/HS 125/79 - Fire Warning System","slug":"ad-hs-125-79-fire-warning-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116303,"registerId":"commonwealth-F2006B10520-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/79 - Fire Warning System","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 125/79 Fire Warning System 7/86\n\nThis AD contents has been removed from the listing because the aircraft model is not currently on the register.\n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"N/A — this is a static administrative entry marking the removal of a former directive, not an evolving legislative instrument."},"complexity_factors":["Document is a stub/placeholder entry (3 sentences total)","No operative provisions currently in force","No defined terms, cross-references, or conditional logic","Historical reference only — content explicitly removed"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA). \n\n**What it does:**\n- Originally required owners/operators of **British Aerospace BAe 125 series aircraft** to inspect or modify their **fire warning systems** (the equipment that alerts pilots if there's an engine or cabin fire).\n- **However**, this particular directive has been **removed from active use** because no BAe 125 aircraft are currently registered in Australia.\n\n**Who it affects:**\n- Nobody, currently. It applied historically to operators of these specific business jets.\n\n**Why it matters:**\n- Airworthiness Directives are critical safety tools. When active, they force aircraft owners to fix known defects before flying. This entry shows how CASA cleans up its rulebook — removing directives that no longer apply when aircraft types leave the Australian register."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The listing entry formerly identified an AD specific to British Aerospace BAe 125 Series aeroplanes (AD/HS 125/79, Fire Warning System). The recorded action is removal of that AD from the listing on the stated ground that the aircraft model is not currently on the register, which narrows the listing’s practical scope to none while the model remains unregistered. (See removal sentence: \"This AD contents has been removed from the listing because the aircraft model is not currently on the register.\")"},"complexity_factors":["Very short source text limited to an AD identifier, aircraft model, and a single administrative note of removal","No operative compliance requirements, technical measures, or procedural steps included in the text","No cross-references, dates, or conditions that would require legal interpretation","Decision rule stated plainly (removal because model not on register) reducing interpretive ambiguity"],"plain_english_summary":"This entry recorded AD/HS 125/79, a fire-warning-system airworthiness directive for British Aerospace BAe 125 Series aeroplanes, but the listing entry has been removed because the model is not currently on the register. \n\nWhen active, ADs affect owners/operators of the identified type; the source notes only removal from the public listing and does not state whether the AD itself was revoked, superseded, or remains in force."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-79-fire-warning-system","history":"/api/acts/ad-hs-125-79-fire-warning-system/history","analysis":"/api/acts/ad-hs-125-79-fire-warning-system/analysis","conflicts":"/api/acts/ad-hs-125-79-fire-warning-system/conflicts","importantCases":"/api/acts/ad-hs-125-79-fire-warning-system/important-cases","documents":"/api/acts/ad-hs-125-79-fire-warning-system/documents"}}