{"id":"F2006B02129","name":"AD/AC/7 - Rudder Torque Tube - Inspection","slug":"ad-ac-7-rudder-torque-tube-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41359,"registerId":"commonwealth-F2006B02129-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AC/7 - Rudder Torque Tube - Inspection","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue NK,Aircraft below 5700 kg,Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes,Rudder Torque Tube - Inspection,7\ntitle: Airworthiness Directive - AD/AC/7 - Rudder Torque Tube - Inspection\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)  Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes\n\n \n\nAD/AC/7 Rudder Torque Tube - Inspection NK\n\nApplicability: All models: S/Nos. 151 to 605. Document: Aero Commander SB No. 47. Compliance:               Forthwith.\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":886},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original targeted scope — a specific safety inspection for a defined aircraft type and serial number range. There is no evidence of scope creep beyond the original airworthiness safety purpose."},"complexity_factors":["Single compliance action required","Specific applicability limited to serial number range 151-605","No defined terms or interpretation section","No conditional logic or exceptions","Cross-reference to only one external technical document (Service Bulletin No. 47)"],"plain_english_summary":"**What this requires:** Owners and operators of specific Twin Commander aircraft (Aerocommander/Gulfstream/Rockwell 500, 600, and 700 series with serial numbers 151 to 605) must immediately inspect the **rudder torque tube** — a critical component that helps control the aircraft's steering.\n\n**Who it affects:** Anyone operating these specific aircraft models within the identified serial number range.\n\n**What you need to do:**\n- Carry out the inspection procedure outlined in **Aero Commander Service Bulletin No. 47**\n- Compliance is required **forthwith** (immediately — before further flight)\n\n**Why it matters:** This directive addresses potential safety defects in the rudder control system that could affect the pilot's ability to steer the aircraft, posing a flight safety risk if not identified and rectified."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ac-7-rudder-torque-tube-inspection","history":"/api/acts/ad-ac-7-rudder-torque-tube-inspection/history","analysis":"/api/acts/ad-ac-7-rudder-torque-tube-inspection/analysis","conflicts":"/api/acts/ad-ac-7-rudder-torque-tube-inspection/conflicts","importantCases":"/api/acts/ad-ac-7-rudder-torque-tube-inspection/important-cases","documents":"/api/acts/ad-ac-7-rudder-torque-tube-inspection/documents"}}