{"id":"F2006B04650","name":"AD/BELL 412/15 - Battery Cable Installation","slug":"ad-bell-412-15-battery-cable-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44402,"registerId":"commonwealth-F2006B04650-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 412/15 - Battery Cable Installation","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)  Bell Helicopter Textron 412 Series Helicopters\n\n \n\nAD/BELL 412/15 Battery Cable Installation 9/86\n\nApplicability: All models with S/Nos 33108 through 33118.\n\n \n\nRequirement: Inspect the battery cable installation according to Bell Alert Service Bulletin No. 412- 86-23. Modify the installation if required according to the requirements of the referenced Service Bulletin.\n\n \n\nCompliance: Within 30 hours time in service after 30 September 1986.\n\n \n\nBackground:  Incorrect battery cable installation may cause chafing against an adjacent lightening hole and/or the forward fuel cell vent line manifold. An incorrect installation has been detected on a new production helicopter.\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":1296},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains precisely targeted at its original purpose: remedying a specific manufacturing defect in battery cable routing. It has not expanded beyond this discrete safety issue affecting a limited production batch."},"complexity_factors":["Single page directive with minimal text","Narrow applicability limited to 11 specific aircraft serial numbers","One straightforward requirement referencing a single external technical standard","No defined terms, exceptions, or conditional clauses","Binary compliance structure (inspect and modify only if required)"],"plain_english_summary":"**What this does:** This is a mandatory safety directive requiring inspection and potential repair of battery cables on specific Bell 412 helicopters.\n\n**Who it affects:** Owners and operators of Bell 412 helicopters with serial numbers 33108 through 33118 (eleven specific aircraft).\n\n**What must be done:**\n- Inspect the battery cable installation following the procedures in **Bell Alert Service Bulletin No. 412-86-23**\n- If the cables are incorrectly routed, modify the installation according to that Service Bulletin\n\n**Why it matters:** Incorrect installation can cause the battery cables to rub (chafe) against a nearby structural hole or the forward fuel cell vent line manifold. This friction could damage the cables or fuel system, creating risks of electrical failure or fire. The defect was discovered on a newly manufactured helicopter.\n\n**When it had to be done:** Within 30 hours of flight time after 30 September 1986."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-412-15-battery-cable-installation","history":"/api/acts/ad-bell-412-15-battery-cable-installation/history","analysis":"/api/acts/ad-bell-412-15-battery-cable-installation/analysis","conflicts":"/api/acts/ad-bell-412-15-battery-cable-installation/conflicts","importantCases":"/api/acts/ad-bell-412-15-battery-cable-installation/important-cases","documents":"/api/acts/ad-bell-412-15-battery-cable-installation/documents"}}