{"id":"F2006B04171","name":"AD/BEECH 76/13 - Rudder Torque Lower Hinge Adaptor","slug":"ad-beech-76-13-rudder-torque-lower-hinge-adaptor","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43924,"registerId":"commonwealth-F2006B04171-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 76/13 - Rudder Torque Lower Hinge Adaptor","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)  Beechcraft 76 (Duchess) Series Aeroplanes\n\n \n\nAD/BEECH 76/13 Rudder Torque Lower Hinge Adaptor 7/83\n\nApplicability: All model 76 with S/Nos. ME-1 to ME-394. Requirement:  Action in accordance with Beechcraft SI No. 1238.\n\nCompliance: Unless already accomplished, within 100 hours’ time in service after 31 July 1983.\n\n \n\nBackground: The manufacturer has issued an improved attachment for rudder torque tube/hinge adapter.\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":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1714},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted, single-issue safety directive from 1983 addressing a specific mechanical defect in a particular aircraft model. It remains confined to its original purpose of mandating a design improvement to prevent rudder attachment failures."},"complexity_factors":["Requires cross-referencing an external technical document (Beechcraft Service Instruction No. 1238) not reproduced in the directive","Technical aviation terminology (rudder torque tube, hinge adaptor, time in service)","Specific serial number applicability that requires checking aircraft logs (ME-1 to ME-394)"],"plain_english_summary":"**What this is:** A mandatory safety instruction (called an Airworthiness Directive) issued by the Civil Aviation Safety Authority for specific aircraft.\n\n**Who it affects:** Owners and operators of Beechcraft 76 'Duchess' aeroplanes with serial numbers ME-1 through ME-394.\n\n**What it requires:** You must modify the lower hinge adaptor on the rudder torque tube (the mechanical component that connects the rudder to the aircraft's control system) by following the manufacturer's Service Instruction No. 1238. In plain terms: install an improved, stronger part to replace or upgrade the original attachment.\n\n**When:** If not already done, complete the work within 100 hours of flight time after 31 July 1983.\n\n**Why it matters:** The original attachment design for the rudder torque tube needed strengthening. This directive makes the upgrade compulsory to ensure the rudder (which steers the aircraft left and right) remains secure and airworthy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-76-13-rudder-torque-lower-hinge-adaptor","history":"/api/acts/ad-beech-76-13-rudder-torque-lower-hinge-adaptor/history","analysis":"/api/acts/ad-beech-76-13-rudder-torque-lower-hinge-adaptor/analysis","conflicts":"/api/acts/ad-beech-76-13-rudder-torque-lower-hinge-adaptor/conflicts","importantCases":"/api/acts/ad-beech-76-13-rudder-torque-lower-hinge-adaptor/important-cases","documents":"/api/acts/ad-beech-76-13-rudder-torque-lower-hinge-adaptor/documents"}}