{"id":"F2006B04562","name":"AD/BELL 212/30 - Engine Mount Fireshield - Installation","slug":"ad-bell-212-30-engine-mount-fireshield-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114292,"registerId":"commonwealth-F2006B04562-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 212/30 - Engine Mount Fireshield - 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 212 Series Helicopters\n\n \n\nAD/BELL 212/30 Engine Mount Fireshield - Installation 4/82\n\nApplicability: All models.\n\n \n\nRequirement: Install engine mount fireshield kit Bell Drwg. No. 412-961-021, or a fireshield kit approved by the Secretary.\n\n \n\nCompliance: Prior to issue of Certificate of Airworthiness.\n\n \n\nBackground: In order to reduce the effect of a single engine fire it is necessary to protect the engine mount with a fireshield. This will permit the other engine to remain aligned and to continue to deliver power to the rotor.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1023},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive remains precisely focused on its original technical purpose: mandating fireshield installation for Bell 212 helicopters to mitigate single-engine fire risks."},"complexity_factors":["Single, unambiguous technical requirement","No cross-references to other legislative instruments","Only one defined term (the drawing number)","Straightforward compliance trigger (prior to certification)"],"plain_english_summary":"This mandate requires owners/operators of Bell 212 helicopters in Australia to fit a protective fireshield (Bell Drawing No. 412-961-021 or Secretary‑approved equivalent) around the engine mount before a Certificate of Airworthiness is issued.  \n\nIt’s intended to prevent heat damage to the engine mount if one engine catches fire, so the remaining engine stays aligned and the helicopter can continue to fly safely."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-212-30-engine-mount-fireshield-installation","history":"/api/acts/ad-bell-212-30-engine-mount-fireshield-installation/history","analysis":"/api/acts/ad-bell-212-30-engine-mount-fireshield-installation/analysis","conflicts":"/api/acts/ad-bell-212-30-engine-mount-fireshield-installation/conflicts","importantCases":"/api/acts/ad-bell-212-30-engine-mount-fireshield-installation/important-cases","documents":"/api/acts/ad-bell-212-30-engine-mount-fireshield-installation/documents"}}