{"id":"F2006B10465","name":"AD/HS 125/25 - Flight Controls - Rudder Servo Motor Control Cables - Inspection","slug":"ad-hs-125-25-flight-controls-rudder-servo-motor-control-cables-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116193,"registerId":"commonwealth-F2006B10465-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HS 125/25 - Flight Controls - Rudder Servo Motor Control Cables - Inspection","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 125/25 Flight Controls - Rudder Servo Motor\n\nControl Cables - Inspection\n\n\n8/72\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 original scope (an AD applying to BAe 125 Series aircraft requiring inspection of rudder servo motor control cables) is recorded but the entry has been removed from the published listing on the stated basis that the aircraft model is not currently on the Australian register. As a result, the AD as listed no longer creates active obligations for registered aircraft in Australia at the time of removal. (Source: AD title and final sentence: \"This AD contents has been removed from the listing because the aircraft model is not currently on the register.\")"},"complexity_factors":["Technical subject matter: relates to rudder servo motor control cables (flight‑control system components).","Regulatory reference: issued under Civil Aviation Regulations 1998, Part 39 (requires familiarity with AD framework).","Sparse content: supplied text contains title and administrative note only; no inspection procedures, intervals, or compliance times are included, increasing practical ambiguity.","Administrative status change: entry records removal from listing because the aircraft model is not on the register, creating a conditional scope that depends on register state."],"plain_english_summary":"# What this instrument does\n\n- This entry is an airworthiness directive (AD) titled \"AD/HS 125/25 Flight Controls - Rudder Servo Motor Control Cables - Inspection\" that applies to British Aerospace BAe 125 Series aeroplanes. (Source: title line and header.)\n\n- Mechanically, the AD requires inspection activity focused on the rudder servo motor control cables — that is, it directs that those flight‑control cable components be inspected. The AD is issued under the Civil Aviation Regulations 1998, Part 39, by the Civil Aviation Safety Authority (CASA). (Source: header referencing the Regulations and CASA and the AD title.)\n\n# Who it affects\n\n- The principal parties affected would be the owners and operators of BAe 125 series aircraft and the maintenance organisations that perform inspections and repairs on those aircraft. Those parties would be responsible for arranging and paying for the required inspection work. (Source: implication of an AD applying to a specific aircraft type in the title.)\n\n# Why it matters\n\n- The stated subject (rudder servo motor control cables) is part of the aircraft's flight‑control system; an inspection AD directs checks on a component where a safety or airworthiness concern has been identified or suspected. The AD mechanism legally requires affected parties to undertake the directed inspection measures while the AD is active. (Source: AD title and regulatory context in header.)\n\n# Current administrative status and practical effect\n\n- The document records that \"This AD contents has been removed from the listing because the aircraft model is not currently on the register.\" That means, as recorded in this entry, the AD has been removed from the published listing on the basis that no BAe 125 aircraft of the affected model are currently on the Australian register. Practically, that removes any active obligation under this specific listed item for aircraft on the Australian register. (Source: final sentence.)\n\n# Practical implementation notes and trade-offs (based on what the text shows)\n\n- Who pays: owners/operators would bear inspection and any remedial costs if the AD were active. (Source: implied by AD applicability to aircraft operators.)\n\n- Who decides: CASA issues and lists ADs under Civil Aviation Regulations 1998, Part 39; CASA determines publication and listing status. (Source: header referencing CASA and Part 39.)\n\n- Behaviour change required: when an AD is active for a registered aircraft type, the operator must have the mandated inspections performed; for this entry, the listing removal means no active inspection requirement for aircraft on the Australian register at the time of removal. (Source: AD title and removal statement.)\n\n- Compliance burden and uncertainty: the text supplied does not include inspection intervals, procedures, compliance times, or acceptable corrective actions. That absence means the AD text as supplied does not on its own specify the operational details that operators would need to comply; normally those details would appear in the full AD text. The lack of procedural detail increases ambiguity about the specific burden and costs. (Source: absence of procedural content in the supplied text.)\n\n- Administrative trade-offs and opportunity costs: publishing and later removing an AD from a public listing imposes administrative work for regulator and industry (publication, possible compliance planning, then removal). The supplied entry states removal was because the model is not on the register; it does not show whether the underlying inspection requirement remains on record in another form or could be reactivated if the type returns to the register. (Source: removal statement.)"},"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is not substantive legislation but rather a stub/placeholder entry indicating that an Airworthiness Directive has been removed from the active register. The document contains no operative legal provisions, requirements, or substantive content — only a header, reference number, and explanatory note that the content has been removed. It appears to be a navigation page or archival marker from a database of airworthiness directives rather than the actual legislative instrument itself.","scope_assessment":{"changed":false,"description":"This appears to be a historical record of a specific airworthiness directive. The document's current form accurately reflects its purpose as an archived entry — it was never intended to be expansive legislation, but rather a specific safety order for a particular aircraft type. The removal notice is consistent with standard aviation regulatory practice of maintaining historical records while clearing inactive items from active enforcement lists."},"complexity_factors":["Document is essentially a stub/placeholder with no operative provisions","No defined terms, cross-references, or conditional logic present","Content consists of a title, reference number, and explanatory note about removal","No substantive regulatory requirements remain in the text"],"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 maintenance or inspections on aircraft.\n\n**What it covers:**\n- **Aircraft type:** British Aerospace BAe 125 series business jets\n- **Issue:** Rudder servo motor control cables (these are the cables that help move the rudder, which steers the aircraft left and right)\n- **Required action:** Inspection of those cables\n\n**Current status:**\nThis directive has been **removed from active use** because no BAe 125 aircraft are currently registered in Australia. Think of it like a product recall that's been archived because nobody owns that product anymore.\n\n**Why it matters:**\nAirworthiness Directives are critical safety tools. Even though this particular one is inactive, it illustrates how aviation safety works — mechanical problems get identified, mandatory fixes are issued, and when aircraft types leave the fleet, their associated directives get cleaned up from the active list."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hs-125-25-flight-controls-rudder-servo-motor-control-cables-inspection","history":"/api/acts/ad-hs-125-25-flight-controls-rudder-servo-motor-control-cables-inspection/history","analysis":"/api/acts/ad-hs-125-25-flight-controls-rudder-servo-motor-control-cables-inspection/analysis","conflicts":"/api/acts/ad-hs-125-25-flight-controls-rudder-servo-motor-control-cables-inspection/conflicts","importantCases":"/api/acts/ad-hs-125-25-flight-controls-rudder-servo-motor-control-cables-inspection/important-cases","documents":"/api/acts/ad-hs-125-25-flight-controls-rudder-servo-motor-control-cables-inspection/documents"}}