{"id":"F2006B04375","name":"AD/BELL 205/37 - Main Rotor Hub Fitting Assemblies - Inspection","slug":"ad-bell-205-37-main-rotor-hub-fitting-assemblies-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44200,"registerId":"commonwealth-F2006B04375-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 205/37 - Main Rotor Hub Fitting Assemblies - 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 3/1977,Rotorcraft,Bell Helicopter Textron 205 Series Helicopters,Main Rotor Hub Fitting Assemblies - Inspection,37\ntitle: Airworthiness Directive - AD/BELL 205/37 - Main Rotor Hub Fitting Assemblies - 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\nBell Helicopter Textron 205 Series Helicopters\n\n \n\nAD/BELL 205/37 Main Rotor Hub Fitting Assemblies - Inspection 3/77\n\nApplicability: All models. Document: Bell SB No. 205-77-1.\n\nCompliance: 1. For fittings which have achieved 1000 hours time in service, before 1 March 1977 and thereafter at intervals not exceeding 1000 hours time in service.\n\n \n\n2. All other fittings, at intervals not exceeding 1000 hours time in service.\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1722},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This 1977 directive remains focused on its original purpose: mandatory recurrent inspection of main rotor hub fittings to prevent mechanical failure. No evidence of scope creep beyond the initial safety-critical component inspection."},"complexity_factors":["Very short, single-subject directive (only 3 substantive paragraphs)","Only one external reference (Bell Service Bulletin 205-77-1) for technical inspection details","Simple binary compliance split based on 1,000-hour threshold and March 1977 date","Minimal legal terminology beyond standard aviation phrase 'time in service'"],"plain_english_summary":"This Airworthiness Directive requires owners and operators of Bell 205 series helicopters to perform recurring inspections of the main rotor hub fitting assemblies per Bell Service Bulletin No. 205-77-1.  \n\nInspections must occur at intervals not exceeding 1,000 flight hours (and, if fittings had already exceeded 1,000 hours before 1 March 1977, were to be inspected by that date and then every 1,000 hours). The rule prevents fatigue cracks that could cause catastrophic rotor failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-205-37-main-rotor-hub-fitting-assemblies-inspection","history":"/api/acts/ad-bell-205-37-main-rotor-hub-fitting-assemblies-inspection/history","analysis":"/api/acts/ad-bell-205-37-main-rotor-hub-fitting-assemblies-inspection/analysis","conflicts":"/api/acts/ad-bell-205-37-main-rotor-hub-fitting-assemblies-inspection/conflicts","importantCases":"/api/acts/ad-bell-205-37-main-rotor-hub-fitting-assemblies-inspection/important-cases","documents":"/api/acts/ad-bell-205-37-main-rotor-hub-fitting-assemblies-inspection/documents"}}