{"id":"F2006B08805","name":"AD/DC3/3 - Rudder Pedal Slide Tube Support - Modification","slug":"ad-dc3-3-rudder-pedal-slide-tube-support-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52174,"registerId":"commonwealth-F2006B08805-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DC3/3 - Rudder Pedal Slide Tube Support - Modification","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)  Douglas DC3 Series Aeroplanes\n\n \n\nAD/DC3/3 Rudder Pedal Slide Tube Support - Modification NK\n\nDocument: 1. Douglas SB (C47) No. 101; or\n\n \n\n2. FAA AD 46-43-2; or\n\n \n\n3. ANO 105.1.16.1.5.3.\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":4,"scope_assessment":{"changed":false,"description":"Based on the supplied text, the instrument does not show a change in scope from what its title indicates: it applies to Douglas DC3 series aeroplanes and mandates a modification to the rudder pedal slide tube support by reference to one of three technical documents. The text provided contains no indication that the AD expands or narrows that scope beyond the stated requirement."},"complexity_factors":["Normative text is short and relies on cross-reference to three external technical documents (Douglas SB No. 101; FAA AD 46-43-2; ANO 105.1.16.1.5.3), requiring operators to obtain and interpret separate materials.","Technical nature of the required modification (airframe control linkage) demands certified maintenance competence and creates operational downtime planning.","Absent procedural detail in the AD itself (no compliance time, no step-by-step instructions in the supplied text) increases administrative effort to identify precise obligations.","Legal obligation imposed by CASA under Part 39 creates regulated compliance risk for owners/operators; resolving compliance requires interaction between operator, maintenance provider and regulator.","Limited scope (specific aircraft type: Douglas DC3 series) lowers breadth but raises concentration of cost and specialised parts/skills, which can complicate execution."],"plain_english_summary":"This airworthiness directive (AD/DC3/3) requires a physical modification to the rudder pedal slide tube support on Douglas DC3 series aeroplanes, issued by CASA to address an identified airworthiness concern. \n\nIt affects DC3 owners/operators and maintenance organisations, who must carry out and certify the modification by following one of three referenced technical documents (Douglas SB No.101; FAA AD 46-43-2; ANO 105.1.16.1.5.3), with costs and downtime borne by operators."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive focused on a specific mechanical modification for a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Extremely short document (approximately 150 words)","Only one substantive requirement (modification of rudder pedal slide tube support)","Three alternative compliance pathways provided (simple 'or' structure)","No defined terms section","No nested exceptions or conditional logic","Single aircraft type affected (Douglas DC-3 series)","No cross-references to other legislation beyond the three listed technical documents"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:** It requires owners and operators of **Douglas DC-3 series aeroplanes** to carry out a specific modification to the **rudder pedal slide tube support**. This is a structural or mechanical fix to ensure the rudder pedals (which pilots use to steer the aircraft on the ground and coordinate turns in the air) remain securely mounted and function properly.\n\n**Who it affects:** Anyone who owns, operates, or maintains a Douglas DC-3 aircraft in Australia.\n\n**Why it matters:** If the rudder pedal slide tube support fails or wears out, pilots could lose control of the aircraft's rudder — a serious safety risk. This AD mandates a fix to prevent accidents.\n\n**How to comply:** Aircraft operators must follow one of three approved technical documents:\n- Douglas Service Bulletin (C47) No. 101; or\n- FAA Airworthiness Directive 46-43-2 (the US equivalent); or\n- ANO 105.1.16.1.5.3 (an older Australian airworthiness notice).\n\n**The bottom line:** If you fly or maintain a DC-3 in Australia, you must check and modify the rudder pedal mounting to keep the aircraft airworthy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dc3-3-rudder-pedal-slide-tube-support-modification","history":"/api/acts/ad-dc3-3-rudder-pedal-slide-tube-support-modification/history","analysis":"/api/acts/ad-dc3-3-rudder-pedal-slide-tube-support-modification/analysis","conflicts":"/api/acts/ad-dc3-3-rudder-pedal-slide-tube-support-modification/conflicts","importantCases":"/api/acts/ad-dc3-3-rudder-pedal-slide-tube-support-modification/important-cases","documents":"/api/acts/ad-dc3-3-rudder-pedal-slide-tube-support-modification/documents"}}