{"id":"F2006B03647","name":"AD/BEECH 1900/3 - Wing Fasteners","slug":"ad-beech-1900-3-wing-fasteners","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43237,"registerId":"commonwealth-F2006B03647-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 1900/3 - Wing Fasteners","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 1900 Series Aeroplanes\n\n \n\nAD/BEECH 1900/3 Wing Fasteners 3/90\n\nApplicability: Model 1900C airliner with S//Nos UC-2 through UC-13, UC-15 through UC-17, UC- 19, UC-20, UC-22 through UC-45. (C12J) S/Nos UD-1 through UD-6.\n\n \n\nRequirement: Action in accordance with Beechcraft Mandatory SB 2336.\n\n \n\nCompliance: Prior to exceeding 100 hours time in service after 22 March 1990 or at the next scheduled inspection for issue of Maintenance Release after 22 March 1990, whichever occurs later.\n\n \n\nBackground: Fasteners may not have been installed at manufacture and are required to meet design requirements.\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":1075},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope addressing a specific manufacturing defect (potentially missing wing fasteners) in identified Beechcraft 1900C aircraft. There is no evidence of scope expansion beyond the original safety issue."},"complexity_factors":["Highly specific applicability limited to enumerated serial numbers","Single external technical reference (Beechcraft SB 2336) without reproduced text","Simple alternative compliance deadline (whichever occurs later)","No defined terms section or interpretive provisions"],"plain_english_summary":"**What this is:** An Airworthiness Directive (a formal safety order from the aviation regulator) requiring owners of specific Beechcraft 1900C aircraft to inspect and fix missing wing fasteners.\n\n**Who it affects:** Operators of Beechcraft 1900C airliners with specific serial numbers (UC-2 through UC-13, UC-15 through UC-17, UC-19, UC-20, UC-22 through UC-45, and UD-1 through UD-6).\n\n**What you must do:** Follow the instructions in **Beechcraft Mandatory Service Bulletin 2336** to ensure certain fasteners in the wing structure are properly installed. These fasteners may have been missing from the factory.\n\n**When:** Complete this work before the aircraft accumulates 100 hours of flight time after 22 March 1990, or at the next scheduled maintenance check after that date—whichever happens **later**.\n\n**Why it matters:** Missing fasteners could compromise the structural integrity of the wing, posing a safety risk to flight operations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-1900-3-wing-fasteners","history":"/api/acts/ad-beech-1900-3-wing-fasteners/history","analysis":"/api/acts/ad-beech-1900-3-wing-fasteners/analysis","conflicts":"/api/acts/ad-beech-1900-3-wing-fasteners/conflicts","importantCases":"/api/acts/ad-beech-1900-3-wing-fasteners/important-cases","documents":"/api/acts/ad-beech-1900-3-wing-fasteners/documents"}}