{"id":"F2006B03621","name":"AD/BEECH 18/22 - Main Landing Gear Drag Legs, Drag Leg Bolts and Retract Slide Assemblies - Inspection","slug":"ad-beech-18-22-main-landing-gear-drag-legs-drag-leg-bolts-and-retract-slide-assemblies-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43212,"registerId":"commonwealth-F2006B03621-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 18/22 - Main Landing Gear Drag Legs, Drag Leg Bolts and Retract Slide 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 12/1981,Aircraft below 5700 kg,Beechcraft 18 Series Aeroplanes,Main Landing Gear Drag Legs, Drag Leg Bolts and Retract Slide Assemblies - Inspection,22\ntitle: Airworthiness Directive - AD/BEECH 18/22 - Main Landing Gear Drag Legs, Drag Leg Bolts and Retract Slide 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\n![](image.001.png)  Beechcraft 18 Series Aeroplanes\n\n \n\n# AD/BEECH 18/22 Main Landing Gear Drag Legs, Drag Leg Bolts\n\nand Retract Slide Assemblies - Inspection\n\nApplicability: All models D18S, E18S, E18S-9700, G18S & H18 with S/Nos. referenced in\n\n# 12/81\n\nBeechcraft Service Instruction No. 1183 or with S/Nos. referenced in subsequent issues of that service instruction.\n\n \n\nDocument: Beechcraft SI No. 1183. Compliance:  As per requirement document.\n\nBackground: The manufacturer advises of the possibility of cracks or corrosion developing in the M.LG. drag legs, drag leg bolts and retract slide assemblies.\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\nFederal Register of Legislative Instruments F2006B03621\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1530},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original, narrow scope: mandating specific structural inspections on identified Beechcraft 18 aircraft. It has not expanded beyond standard airworthiness directive parameters."},"complexity_factors":["Extremely short text (under 150 words)","Single compliance requirement with no exceptions or provisos","Requires cross-referencing an external technical manual (Beechcraft SI No. 1183)","Limited applicability (specific aircraft models and serial numbers only)","No defined terms, nested conditions, or interpretive provisions"],"plain_english_summary":"This **Airworthiness Directive** (a mandatory safety order) requires owners of specific vintage Beechcraft aircraft to inspect their landing gear for dangerous defects.\n\n**Who is affected?**\nOwners and operators of Beechcraft 18 series models **D18S, E18S, E18S-9700, G18S and H18** with specific serial numbers listed in Beechcraft Service Instruction No. 1183.\n\n**What must you do?**\nYou must inspect the **main landing gear drag legs**, **drag leg bolts** and **retract slide assemblies** for:\n- Cracks\n- Corrosion\n\n**Why is this happening?**\nThe manufacturer discovered these critical structural parts can develop cracks or rust that could cause landing gear failure.\n\n**How to comply:**\nFollow the inspection steps exactly as written in **Beechcraft Service Instruction No. 1183**. This is legally binding—you cannot skip it."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-18-22-main-landing-gear-drag-legs-drag-leg-bolts-and-retract-slide-assemblies-inspection","history":"/api/acts/ad-beech-18-22-main-landing-gear-drag-legs-drag-leg-bolts-and-retract-slide-assemblies-inspection/history","analysis":"/api/acts/ad-beech-18-22-main-landing-gear-drag-legs-drag-leg-bolts-and-retract-slide-assemblies-inspection/analysis","conflicts":"/api/acts/ad-beech-18-22-main-landing-gear-drag-legs-drag-leg-bolts-and-retract-slide-assemblies-inspection/conflicts","importantCases":"/api/acts/ad-beech-18-22-main-landing-gear-drag-legs-drag-leg-bolts-and-retract-slide-assemblies-inspection/important-cases","documents":"/api/acts/ad-beech-18-22-main-landing-gear-drag-legs-drag-leg-bolts-and-retract-slide-assemblies-inspection/documents"}}