{"id":"F2006B04802","name":"AD/BO 105/13 - Load Hook System","slug":"ad-bo-105-13-load-hook-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44590,"registerId":"commonwealth-F2006B04802-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BO 105/13 - Load Hook System","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)  Eurocopter BO 105 Series Helicopters\n\n \n\nAD/BO 105/13 Load Hook System  4/89 DM\n\nApplicability: All model BO 105 helicopters employing a load hook system using any of the following load hooks:\n\n \n\nS1609-2-105, S1609-2-105A, S1609-2-106 or S1609-2-106A\n\n \n\nRequirement: Action in accordance with MBB Alert Service Bulletin No ASB-BO 105-80-107.\n\n \n\nCompliance: Before further use of the load hook system or by 22 February 1989, whichever occurs first.\n\n \n\nBackground:  The manufacturer has warned of a potential problem where in advertent release of the load from the load hook may occur.\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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2063},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains tightly focused on its original purpose: remedying a specific mechanical defect in load hook systems for the BO 105 helicopter model. It has not expanded to include additional aircraft systems or broader operational requirements."},"complexity_factors":["Extremely short document (single page)","Single compliance action referencing an external technical bulletin","Limited applicability scope (four specific part numbers)","No nested definitions, exceptions, or conditional clauses","Clear, absolute deadline with no alternative compliance methods"],"plain_english_summary":"**What this is:** A mandatory safety order (called an Airworthiness Directive) for helicopter operators.\n\n**Who it affects:** Anyone operating **Eurocopter BO 105 helicopters** that use cargo hooks with these specific part numbers:\n- S1609-2-105\n- S1609-2-105A  \n- S1609-2-106\n- S1609-2-106A\n\n**What it requires:** Operators must perform specific maintenance actions outlined in **MBB Alert Service Bulletin No ASB-BO 105-80-107**. This fixes a design flaw that could cause the cargo hook to release loads unexpectedly.\n\n**Deadline:** The fix had to be completed before using the cargo hook system again, or by **22 February 1989** (whichever came first).\n\n**Why it matters:** Prevents dangerous situations where underslung cargo (such as construction materials, firefighting buckets, or rescue equipment) could fall from the helicopter without warning, endangering people and property below."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bo-105-13-load-hook-system","history":"/api/acts/ad-bo-105-13-load-hook-system/history","analysis":"/api/acts/ad-bo-105-13-load-hook-system/analysis","conflicts":"/api/acts/ad-bo-105-13-load-hook-system/conflicts","importantCases":"/api/acts/ad-bo-105-13-load-hook-system/important-cases","documents":"/api/acts/ad-bo-105-13-load-hook-system/documents"}}