{"id":"F2006B02568","name":"AD/AUS/17 - Modification to Rudder Cable System","slug":"ad-aus-17-modification-to-rudder-cable-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41824,"registerId":"commonwealth-F2006B02568-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AUS/17 - Modification to Rudder Cable 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)  Auster/Beagle A.61 Series Aeroplanes\n\n \n\nAD/AUS/17 Modification to Rudder Cable System 12/62\n\nApplicability: As detailed in Requirement Document. Requirement:  Action in accordance with Auster SB Issue 50. Compliance:               As detailed in Requirement Document.\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":false,"description":"Based on the supplied text alone, the directive sets a modification requirement for the Auster/Beagle A.61 series and delegates technical detail and applicability to a Requirement Document and Auster SB Issue 50. There is no information in the supplied text indicating a change from an earlier or \"original\" scope; the directive's scope as written is limited to mandating the referenced modification and pointing to external documents for detail."},"complexity_factors":["The directive text is brief and defers technical and applicability details to external documents (Applicability: As detailed in Requirement Document; Compliance: As detailed in Requirement Document).","Technical action is specified via an external Service Bulletin (Requirement: Action in accordance with Auster SB Issue 50), requiring technical interpretation by maintainers.","Compliance obligations (who is covered and timing) are not listed in the directive itself and depend on the Requirement Document (Applicability/Compliance references).","Regulatory enforcement is under Civil Aviation Regulations 1998, Part 39, which sets the legal effect but not the operational detail (header reference).","Affected parties must obtain and correctly interpret multiple documents to determine precise obligations (directive text does not reproduce those documents)."],"plain_english_summary":"This directive orders a mandatory modification to the rudder cable system on Auster/Beagle A.61 series aeroplanes, requiring work \"in accordance with Auster SB Issue 50.\" Applicability and compliance timing are set out in a separate Requirement Document. Issued by CASA under the Civil Aviation Regulations, it makes owners/operators legally responsible for obtaining the referenced documents, scheduling and paying for the modification, and meeting the specified procedural and technical steps."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive focused specifically on rudder cable modifications for one aircraft series. It has not expanded beyond its original narrow technical purpose."},"complexity_factors":["Extremely short document (approximately 100 words)","No defined terms section","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Simple conditional structure: single applicability trigger and single compliance action","Delegates technical details to external document (Auster SB Issue 50) rather than incorporating them","No exceptions or nested conditions"],"plain_english_summary":"This is an **Airworthiness Directive** (AD) — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners or operators of **Auster/Beagle A.61 Series aeroplanes** to modify the rudder cable system on their aircraft.\n\n**What it does:**\n- Mandates a specific safety modification to prevent potential failure of the rudder control cables\n- Requires compliance with **Auster Service Bulletin Issue 50** (the manufacturer's official technical instruction)\n\n**Who it affects:**\n- Owners and operators of Auster/Beagle A.61 Series aircraft\n- Maintenance organisations servicing these aircraft\n\n**Why it matters:**\nRudder cables control the aircraft's directional steering. A failure could cause loss of directional control, potentially leading to an accident. This AD ensures all affected aircraft receive a critical safety fix."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aus-17-modification-to-rudder-cable-system","history":"/api/acts/ad-aus-17-modification-to-rudder-cable-system/history","analysis":"/api/acts/ad-aus-17-modification-to-rudder-cable-system/analysis","conflicts":"/api/acts/ad-aus-17-modification-to-rudder-cable-system/conflicts","importantCases":"/api/acts/ad-aus-17-modification-to-rudder-cable-system/important-cases","documents":"/api/acts/ad-aus-17-modification-to-rudder-cable-system/documents"}}