{"id":"F2006B09070","name":"AD/DHC-3/21 - Rudder Pedal Support","slug":"ad-dhc-3-21-rudder-pedal-support","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52835,"registerId":"commonwealth-F2006B09070-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHC-3/21 - Rudder Pedal Support","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)  DHC-3 (Otter) Series Aeroplanes\n\n \n\nAD/DHC-3/21 Rudder Pedal Support 12/66\n\nApplicability: All models.\n\n \n\nRequirement: Action in accordance with De H Canada TNS Otter No. 96. Compliance:  Forthwith.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1631},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope addressing rudder pedal support integrity on the DHC-3 Otter aircraft series."},"complexity_factors":["Relies entirely on an external technical document (De H Canada TNS Otter No. 96) for substantive requirements, which is not reproduced in the directive","Uses aviation-specific regulatory shorthand ('TNS', 'Forthwith', 'AD') without internal definitions","Extreme brevity typical of airworthiness directives creates opacity for non-aviation readers"],"plain_english_summary":"This Airworthiness Directive applies to all De Havilland Canada DHC‑3 Otter aircraft and mandates immediate inspection or repair of the rudder pedal support per De H Canada TNS Otter No. 96.  \n\nIt affects owners and operators who must act “forthwith” because a failed support can cause loss of directional control during taxi, takeoff, or landing, posing a serious safety risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-3-21-rudder-pedal-support","history":"/api/acts/ad-dhc-3-21-rudder-pedal-support/history","analysis":"/api/acts/ad-dhc-3-21-rudder-pedal-support/analysis","conflicts":"/api/acts/ad-dhc-3-21-rudder-pedal-support/conflicts","importantCases":"/api/acts/ad-dhc-3-21-rudder-pedal-support/important-cases","documents":"/api/acts/ad-dhc-3-21-rudder-pedal-support/documents"}}