{"id":"F2006B03403","name":"AD/B767/5 - Cargo Compartment Fire Protection","slug":"ad-b767-5-cargo-compartment-fire-protection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42944,"registerId":"commonwealth-F2006B03403-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/5 - Cargo Compartment Fire Protection","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)  Boeing 767 Series Aeroplanes\n\n \n\nAD/B767/5 Cargo Compartment Fire Protection 9/85\n\nApplicability: All models.\n\n \n\nRequirement: Modify and test the environmental control system according to the requirements detailed in Boeing SB 767-21-0041 latest revision.\n\n \n\nNote: FAA AD 85-13-02 Amdt 39-5085 refers.\n\n \n\nCompliance: Before 31 December 1985.\n\n \n\nBackground: The rework is necessary to assure the effectiveness of the cargo compartment fire protection system.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The text sets a clear, model‑wide requirement to modify and test the environmental control system and specifies a compliance date. It does not indicate any expansion or narrowing of scope from an earlier version within the supplied text; the AD applies to all Boeing 767 models and requires compliance with the Boeing service bulletin as stated (Applicability; Requirement; Compliance)."},"complexity_factors":["Technical modification and testing of the environmental control system (requires specialist maintenance expertise and procedures) (Requirement)","Mandated adherence to an external document (Boeing SB 767-21-0041 latest revision) for the detailed procedure (Requirement)","Universal applicability to all Boeing 767 models increases scale of compliance (Applicability)","Fixed regulatory deadline requiring scheduling and fleet-level coordination (Compliance)","Regulatory linkage to an FAA AD, requiring awareness of related foreign regulatory material (Note)","Operational impacts from required testing and aircraft downtime, with costs and resource needs unspecified in the AD (Requirement; Compliance)"],"plain_english_summary":"This directive requires all Boeing 767 aircraft to have their environmental control system modified and functionally tested to ensure cargo-compartment fire protection, following Boeing Service Bulletin 767-21-0041 (latest revision). Owners/operators and their maintenance organisations must complete the work by 31 December 1985.\n\nIt matters because it enforces a safety upgrade across the fleet and places the scheduling, downtime, parts and funding burden on operators, who must obtain and follow the OEM service bulletin to comply."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive from 1985 with a single, specific purpose. It has not expanded beyond its original intent of ensuring cargo fire protection system effectiveness through environmental control system modifications."},"complexity_factors":["Very short document (under 200 words)","Only 1 defined term implicitly referenced (Boeing SB 767-21-0041)","Single, unambiguous compliance requirement with clear deadline","No nested exceptions or conditional logic","No cross-references to other legislation beyond a single note about the corresponding FAA directive","Straightforward applicability (all models, no exclusions)"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or modifications to aircraft.\n\n**What it does:** It orders owners and operators of **all Boeing 767 aircraft** to modify and test their **environmental control system** (the system that manages cabin air conditioning, heating, and pressurisation) according to Boeing's official instructions (Service Bulletin 767-21-0041).\n\n**Why it matters:** The modification is needed to ensure the **cargo compartment fire protection system** works properly. If the environmental system isn't fixed, fire suppression in the cargo hold might fail — a serious safety risk for cargo and passenger flights alike.\n\n**Who must comply:** Anyone operating a Boeing 767 in Australia had to complete this work **before 31 December 1985**.\n\n**Key point:** This directive references an American safety order (FAA AD 85-13-02), showing how Australia often aligns its aviation safety rules with US standards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-5-cargo-compartment-fire-protection","history":"/api/acts/ad-b767-5-cargo-compartment-fire-protection/history","analysis":"/api/acts/ad-b767-5-cargo-compartment-fire-protection/analysis","conflicts":"/api/acts/ad-b767-5-cargo-compartment-fire-protection/conflicts","importantCases":"/api/acts/ad-b767-5-cargo-compartment-fire-protection/important-cases","documents":"/api/acts/ad-b767-5-cargo-compartment-fire-protection/documents"}}