{"id":"F2006B08306","name":"AD/CESSNA 400/19 - Elevator Torque Tube - Inspection","slug":"ad-cessna-400-19-elevator-torque-tube-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115704,"registerId":"commonwealth-F2006B08306-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/19 - Elevator Torque Tube - Inspection","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)  Cessna 400 Series Aeroplanes\n\n \n\nAD/CESSNA 400/19 Elevator Torque Tube - Inspection 8/70\n\nApplicability: All models listed in SL ME70-25. Document:  Cessna SL ME70-25.\n\nCompliance: Within 100 hours time in service after 30 September 1970.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1540},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument remains a narrow, targeted technical maintenance requirement focused exclusively on the elevator torque tube inspection for Cessna 400 series aircraft. It has not expanded beyond its original 1970 safety purpose of addressing a specific mechanical integrity issue."},"complexity_factors":["Single-page instrument with one specific compliance action","No defined terms or interpretation section","Only one external reference (Cessna Service Letter ME70-25)","Simple applicability criteria (specific aircraft series only)","Single, unambiguous deadline (100 hours after 30 September 1970)","No exceptions, exemptions, or conditional provisions"],"plain_english_summary":"This Airworthiness Directive (AD) is a mandatory safety order for aircraft owners. **What it requires:** Operators of Cessna 400 series aeroplanes must inspect the **elevator torque tube**—a critical component that transmits the pilot's control inputs to the elevator (the part of the tail that makes the plane climb or dive). **Who it affects:** All specific models listed in Cessna Service Letter ME70-25. **When:** The inspection must be completed within **100 hours of flight time** (called \"time in service\") after 30 September 1970. **Why it matters:** This prevents potential structural failures in the flight control system that could lead to loss of aircraft control. The directive references a manufacturer service letter (SL ME70-25) for technical details on how to perform the inspection."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-19-elevator-torque-tube-inspection","history":"/api/acts/ad-cessna-400-19-elevator-torque-tube-inspection/history","analysis":"/api/acts/ad-cessna-400-19-elevator-torque-tube-inspection/analysis","conflicts":"/api/acts/ad-cessna-400-19-elevator-torque-tube-inspection/conflicts","importantCases":"/api/acts/ad-cessna-400-19-elevator-torque-tube-inspection/important-cases","documents":"/api/acts/ad-cessna-400-19-elevator-torque-tube-inspection/documents"}}