{"id":"F2006B04110","name":"AD/BEECH 60/6 - Fin Spar","slug":"ad-beech-60-6-fin-spar","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43797,"registerId":"commonwealth-F2006B04110-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 60/6 - Fin Spar","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 60 (Duke) Series Aeroplanes\n\n \n\nAD/BEECH 60/6 Fin Spar 5/70\n\nApplicability: Model 60 with S/Nos. P-1 to P-117, P-120, P-124 and P-125. Requirement:  Action in accordance with Beechcraft SI No. 0336-134.\n\nCompliance: Within 100 hours’ time in service after 29 May 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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1416},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted, vintage safety directive from 1970 addressing a specific structural concern on identified aircraft. The scope remains tightly confined to fin spar maintenance on the listed serial numbers and has not expanded beyond this original technical purpose."},"complexity_factors":["Single external cross-reference to manufacturer service instruction (SI 0336-134) without reproducing steps","Narrow applicability limited to specific aircraft serial numbers only","Simple time-based compliance trigger (100 hours time-in-service) with no exceptions or conditional logic"],"plain_english_summary":"This Airworthiness Directive (AD) mandates a safety inspection or repair for specific Beechcraft 60 \"Duke\" aircraft.\n\n**Who it affects:**\nOwners and operators of Beechcraft Model 60 aircraft with serial numbers P-1 through P-117, plus P-120, P-124, and P-125.\n\n**What you must do:**\nPerform maintenance actions on the **fin spar** — the main structural beam inside the vertical tail fin — strictly following the procedures in Beechcraft Service Instruction No. 0336-134.\n\n**Deadline:**\nWithin 100 hours of flight time after 29 May 1970.\n\n**Why it matters:**\nThis directive addresses potential structural defects in the tail section that could affect aircraft safety. Compliance is mandatory under civil aviation safety law."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-60-6-fin-spar","history":"/api/acts/ad-beech-60-6-fin-spar/history","analysis":"/api/acts/ad-beech-60-6-fin-spar/analysis","conflicts":"/api/acts/ad-beech-60-6-fin-spar/conflicts","importantCases":"/api/acts/ad-beech-60-6-fin-spar/important-cases","documents":"/api/acts/ad-beech-60-6-fin-spar/documents"}}