{"id":"F2006B03405","name":"AD/B767/51 - Evacuation Systems","slug":"ad-b767-51-evacuation-systems","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42946,"registerId":"commonwealth-F2006B03405-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/51 - Evacuation Systems","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/B767/51 Evacuation Systems 2/91\n\nApplicability: Model 767 equipped with BFGoodrich escape slides or slide/rafts identified in BFGoodrich SB 25-212.\n\n \n\nRequirement: Action in accordance with the technical requirements of FAA AD 90-22-04 Amdt 39- 6776.\n\n \n\nNote: BFGoodrich SB 25-212 refers.\n\n \n\nCompliance: As specified in the Requirement Document with revised effective date of 21 February 1991.\n\n \n\nBackground: Country of origin AD. To prevent evacuation system malfunctions which may jeopardize successful emergency evacuation of the aircraft.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive format that has not expanded beyond its original purpose. It maintains the typical structure of CASA ADs: applicability, requirement referencing external technical documents, compliance date, and safety rationale. The scope remains tightly focused on the specific evacuation system defect."},"complexity_factors":["Very short document (under 200 words)","Only 1 defined applicability criterion (specific BFGoodrich equipment)","Single requirement: follow external FAA directive and manufacturer service bulletin","No nested conditions, exceptions, or cross-references within the text itself","Relies entirely on incorporated external documents (FAA AD and BFGoodrich SB) for technical detail"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order — issued by Australia's Civil Aviation Safety Authority (CASA) for **Boeing 767 aircraft**.\n\n**What it does:**\n- Requires owners or operators of specific Boeing 767 models to inspect or fix their **evacuation systems** (the emergency escape slides and slide/rafts made by BFGoodrich).\n- The directive references a **US Federal Aviation Administration (FAA) safety order** (AD 90-22-04) and a **BFGoodrich service bulletin** (SB 25-212), meaning Australian operators must follow the technical instructions in those documents.\n\n**Who it affects:**\n- Airlines or operators flying Boeing 767s equipped with specific BFGoodrich escape slides or slide/rafts identified in the manufacturer's service bulletin.\n\n**Why it matters:**\n- The directive aims to **prevent evacuation system failures** that could block passengers from escaping during an emergency. This is critical safety equipment — if slides don't deploy properly in a crash or forced landing, lives are at risk.\n\n**Key point:** This isn't optional. \"Compliance\" means operators must complete the required actions by the specified deadline (21 February 1991 for this revision)."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument's scope is limited and specific: it applies to Boeing 767 aeroplanes fitted with BFGoodrich escape slides or slide/rafts identified in BFGoodrich SB 25-212 and requires compliance with FAA AD 90-22-04 as adopted by CASA. The text indicates this action is adoption of a country-of-origin safety directive to prevent evacuation system malfunctions; it does not expand or narrow that stated intent beyond the equipment and documents cited (Applicability; Requirement; Background)."},"complexity_factors":["Cross-reference to external technical documents (FAA AD 90-22-04 Amdt 39-6776 and BFGoodrich SB 25-212) — requires consulting other documents for full technical detail (Requirement; Note).","Narrow, equipment-specific applicability (only Model 767 aircraft fitted with BFGoodrich slides/slide-rafts identified in SB 25-212) — requires fleet-specific applicability checks (Applicability).","Operational complexity from physical maintenance tasks (inspections/repairs/replacements) that create scheduling and downtime impacts for operators, though the AD does not list the technical steps itself (Requirement; Compliance).","Administrative compliance tracking — operators must record compliance by the revised effective date but enforcement details are outside the text (Compliance).","Regulatory sourcing — adoption of a country-of-origin (FAA) AD reduces local drafting but requires alignment with foreign documents and manufacturer procedures (Background; Requirement)."],"plain_english_summary":"This AD adopts an FAA airworthiness directive and a BFGoodrich service bulletin requiring owners/operators of Boeing 767s fitted with the specified BFGoodrich escape slides/slide‑rafts to carry out the referenced inspections, repairs or replacements by the revised effective date (21 February 1991). It aims to prevent evacuation‑system malfunctions; compliance imposes scheduling, parts, labour and downtime costs on operators and their maintenance providers."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-51-evacuation-systems","history":"/api/acts/ad-b767-51-evacuation-systems/history","analysis":"/api/acts/ad-b767-51-evacuation-systems/analysis","conflicts":"/api/acts/ad-b767-51-evacuation-systems/conflicts","importantCases":"/api/acts/ad-b767-51-evacuation-systems/important-cases","documents":"/api/acts/ad-b767-51-evacuation-systems/documents"}}