{"id":"F2006B08457","name":"AD/CF6/13 - Accessory Compartment Fire Shields","slug":"ad-cf6-13-accessory-compartment-fire-shields","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51096,"registerId":"commonwealth-F2006B08457-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CF6/13 - Accessory Compartment Fire Shields","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 - 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  General Electric Turbine Engines - CF6 Series\n\n \n\nAD/CF6/13 Accessory Compartment Fire Shields 11/88\n\nDM\n\n \n\nApplicability: CF6-80A Series.\n\n \n\nRequirement: Install fire shields in accordance with the requirements of FAA AD 89-16-08 Paras\n\n(a) and (b) unless already accomplished. Compliance: Prior to 27 October 1989.\n\nBackground: The FAA advises of one event involving a CF6-80A engine where an external fire resulted from failure of a number 5R bearing. The fire progressed into the accessory compartment damaging fuel carrying lines causing fuel leakage which sustained the fire.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The document itself imposes a specific retrofit requirement for CF6-80A engines to install accessory compartment fire shields per FAA AD 89-16-08 paras (a) and (b) and sets a compliance date. There is no material in this text indicating a change in scope from an earlier intent or a broader expansion of applicability; the AD is confined to the stated engine series and the specified FAA AD requirements (Applicability; Requirement)."},"complexity_factors":["Narrow, engine-specific technical scope limited to CF6-80A series (Applicability).","Mandated action is straightforward (install fire shields) but requires following another instrument (FAA AD 89-16-08 paras (a) and (b)), adding cross-reference complexity (Requirement).","Fixed compliance deadline creates scheduling pressure and administrative coordination (Compliance).","Technical installation details are not reproduced in this text, so implementers must obtain and interpret the FAA AD and apply technical judgement during installation (Requirement).","No alternative compliance path, exemption route, or implementation guidance is provided in this AD, so operators must follow the cited FAA AD as the sole instruction in this document (Requirement)."],"plain_english_summary":"This instrument mandates installation of accessory-compartment fire shields on General Electric CF6-80A engines, in accordance with FAA AD 89-16-08 paras (a) and (b), unless already done. It affects aircraft owners/operators, who must pay for parts, labor and downtime and comply prior to 27 October 1989, after an FAA-reported bearing failure led to a fuel-fed accessory-compartment fire."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific mechanical defect in specific engines. It has not expanded beyond its original purpose of mandating fire shield installation."},"complexity_factors":["Very short document — approximately 150 words of substantive content","Only one defined applicability (CF6-80A Series engines)","Single straightforward requirement with one exception clause (\"unless already accomplished\")","No cross-references to other Australian legislation — only references external FAA directive (AD 89-16-08)","No conditional logic, nested exceptions, or alternative compliance methods","Standardised AD format with clear sections: Applicability, Requirement, Compliance, Background"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for aircraft engines.\n\n**What it does:**\nRequires owners and operators of **General Electric CF6-80A series turbine engines** to install **fire shields** in the engine's accessory compartment.\n\n**Why it matters:**\nThe FAA (American aviation regulator) reported an incident where a bearing failure in one of these engines caused an external fire. The fire spread into the accessory compartment, damaged fuel lines, caused fuel to leak, and kept the fire burning. The fire shields are physical barriers designed to stop or slow this kind of fire spread, protecting the aircraft and passengers.\n\n**Who must comply:**\nAnyone operating aircraft with CF6-80A engines — this includes airlines, cargo operators, and any other aviation businesses using these engines.\n\n**The deadline:**\nThe work had to be completed **before 27 October 1989** (this is a historical directive from 1988).\n\n**Key point:**\nIf the fire shields were already installed before this directive came out, you don't need to do it again (\"unless already accomplished\")."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cf6-13-accessory-compartment-fire-shields","history":"/api/acts/ad-cf6-13-accessory-compartment-fire-shields/history","analysis":"/api/acts/ad-cf6-13-accessory-compartment-fire-shields/analysis","conflicts":"/api/acts/ad-cf6-13-accessory-compartment-fire-shields/conflicts","importantCases":"/api/acts/ad-cf6-13-accessory-compartment-fire-shields/important-cases","documents":"/api/acts/ad-cf6-13-accessory-compartment-fire-shields/documents"}}