{"id":"F2006B04251","name":"AD/BEECH 90/62 - Horizontal Stabiliser Forward Spar Web Rivets - Inspection","slug":"ad-beech-90-62-horizontal-stabiliser-forward-spar-web-rivets-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44038,"registerId":"commonwealth-F2006B04251-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 90/62 - Horizontal Stabiliser Forward Spar Web Rivets - 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)  Beechcraft 90 and 65-90 (King Air) Series Aeroplanes\n\n \n\n# AD/BEECH 90/62 Horizontal Stabiliser Forward Spar\n\nWeb Rivets - Inspection\n\nApplicability: All model F90 with S/Nos. LA-2 to LA-101. Document:  Beechcraft SI No. 1192.\n\n# 10/81\n\nCompliance: 1. For those aeroplanes which have achieved 2000 hours’ time in service inspect within 100 hours’ time in service after 31 October 1981 and thereafter at intervals not exceeding 500 hours’ time in service.\n\n \n\n2. For those aeroplanes which have not achieved 2000 hours’ time in service, inspect before achieving 2000 hours’ time in service and thereafter at intervals not exceeding 500 hours’ time in service.\n\n \n\nBackground: It is possible that looseness could develop in the horizontal stabiliser forward spar web rivets during normal service.\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":3145},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope targeting inspection of horizontal stabiliser forward spar web rivets on specific aircraft serial numbers. There is no indication of expansion to cover additional aircraft types, models, or structural components beyond the original applicability."},"complexity_factors":["Narrow applicability limited to one specific aircraft model (Beechcraft F90) and specific serial number range (LA-2 to LA-101)","Simple binary conditional logic based solely on flight hours threshold (2,000 hours)","No defined terms section or cross-references to other legislative provisions","Single, specific operational requirement (rivet inspection) with clear intervals"],"plain_english_summary":"This mandatory safety directive requires owners and operators of Beechcraft Model F90 aircraft (serials LA-2 through LA-101) to perform recurring inspections of rivets in the forward spar web of the horizontal stabiliser. Inspections must begin before 2,000 total flight hours (or within 100 hours if already over 2,000) and recur every 500 flight hours. The rule addresses identified loose rivets that could weaken the tail’s structural integrity and compromise flight safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-90-62-horizontal-stabiliser-forward-spar-web-rivets-inspection","history":"/api/acts/ad-beech-90-62-horizontal-stabiliser-forward-spar-web-rivets-inspection/history","analysis":"/api/acts/ad-beech-90-62-horizontal-stabiliser-forward-spar-web-rivets-inspection/analysis","conflicts":"/api/acts/ad-beech-90-62-horizontal-stabiliser-forward-spar-web-rivets-inspection/conflicts","importantCases":"/api/acts/ad-beech-90-62-horizontal-stabiliser-forward-spar-web-rivets-inspection/important-cases","documents":"/api/acts/ad-beech-90-62-horizontal-stabiliser-forward-spar-web-rivets-inspection/documents"}}