{"id":"F2006B09355","name":"AD/ECUREUIL/5 - Tail Rotor Control Fixed Plate - Inspection of Self Aligning Bearing","slug":"ad-ecureuil-5-tail-rotor-control-fixed-plate-inspection-of-self-aligning-bearing","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53602,"registerId":"commonwealth-F2006B09355-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ECUREUIL/5 - Tail Rotor Control Fixed Plate - Inspection of Self Aligning Bearing","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)  Eurocopter AS 350 (Ecureuil) Series Helicopters\n\n \n\nAD/ECUREUIL/5 Tail Rotor Control Fixed Plate - Inspection\n\nof Self Aligning Bearing\n\n\n8/79\n\n \n\nApplicability: All model AS.350 not modified in accordance with AMS 350A.07.6513 and AMS 350A.07.8515.\n\n \n\nDocument: AS.350 SB 05.01.\n\n \n\nCompliance: At periods not exceeding 50 hours time in service.\n\n \n\nBackground:  Regular inspections are required to ensure that the tail rotor control self aligning bearing is correctly located in the bore of the fixed plate.\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":1457},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope focused solely on tail rotor bearing inspection for the specified helicopter models."},"complexity_factors":["Single discrete maintenance task (visual inspection of one component)","Simple binary applicability test (absence of two specific modifications)","Fixed compliance interval with no conditions (50 hours time in service)","No internal cross-references, exceptions, or defined terms"],"plain_english_summary":"**What this does:** This is a mandatory safety rule (called an Airworthiness Directive) for operators of Eurocopter AS 350 helicopters. It requires regular checks of a specific mechanical part in the tail rotor control system.\n\n**Who it affects:** Owners and operators of AS 350 model helicopters that have **not** been modified according to service bulletins AMS 350A.07.6513 or AMS 350A.07.8515.\n\n**What must be done:** Every 50 hours of flight time, mechanics must inspect the \"self-aligning bearing\" (a component that allows movement while supporting load) in the tail rotor control fixed plate to ensure it is properly seated in its housing (the bore).\n\n**Why it matters:** The tail rotor keeps the helicopter stable and controls its direction. If this bearing slips out of place, it could lead to loss of tail rotor control, potentially causing a catastrophic accident."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ecureuil-5-tail-rotor-control-fixed-plate-inspection-of-self-aligning-bearing","history":"/api/acts/ad-ecureuil-5-tail-rotor-control-fixed-plate-inspection-of-self-aligning-bearing/history","analysis":"/api/acts/ad-ecureuil-5-tail-rotor-control-fixed-plate-inspection-of-self-aligning-bearing/analysis","conflicts":"/api/acts/ad-ecureuil-5-tail-rotor-control-fixed-plate-inspection-of-self-aligning-bearing/conflicts","importantCases":"/api/acts/ad-ecureuil-5-tail-rotor-control-fixed-plate-inspection-of-self-aligning-bearing/important-cases","documents":"/api/acts/ad-ecureuil-5-tail-rotor-control-fixed-plate-inspection-of-self-aligning-bearing/documents"}}