{"id":"F2006B03058","name":"AD/B747/156 - Door 2 Escape Slide/Raft","slug":"ad-b747-156-door-2-escape-slide-raft","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42417,"registerId":"commonwealth-F2006B03058-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/156 - Door 2 Escape Slide/Raft","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 747 Series Aeroplanes\n\n \n\nAD/B747/156 Door 2 Escape Slide/Raft 2/96\n\nApplicability: Model 747SP series aircraft equipped with BFGoodrich evacuation systems identified in BFGoodrich Service Bulletin 7A1255-25-275.\n\n \n\nRequirement: Modify the escape slide/raft on Door 2 in accordance with BFGoodrich Service Bulletin 7A1255-25-275.\n\n \n\nNote: FAA AD 95-24-02 Amdt 39-9434 refers.\n\n \n\nCompliance: Before 31 December 1998.\n\n \n\nBackground: The FAA received a report of a Door 2 escape slide/raft that did not inflate automatically after deployment onto the wing.\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":2,"scope_assessment":{"changed":false,"description":"The directive's scope remains as stated in the source: it applies only to Model 747SP aeroplanes equipped with BFGoodrich evacuation systems identified in BFGoodrich Service Bulletin 7A1255-25-275 and requires modification of the Door 2 escape slide/raft per that service bulletin, to be completed before 31 December 1998 (Applicability; Requirement; Compliance). There is no indication in the document that the scope was expanded beyond that original specification (Applicability; Requirement)."},"complexity_factors":["Narrow applicability limited to Model 747SP series with BFGoodrich evacuation systems (Applicability).","Single, specific technical action required (modify Door 2 escape slide/raft) rather than a multi-step regulatory programme (Requirement).","Direct reliance on an external manufacturer service bulletin for the method of compliance (BFGoodrich Service Bulletin 7A1255-25-275) which creates a technical dependency (Requirement).","Fixed compliance deadline that forces scheduling and operational adjustments (Compliance).","Safety-critical nature increases practical importance despite regulatory simplicity (Background).","Potential operational costs and aircraft downtime for affected operators (Applicability; Compliance).","Regulatory enforcement under Civil Aviation Regulations gives the AD mandatory effect (header; Compliance)."],"plain_english_summary":"The Australian regulator (CASA) mandates a manufacturer-prescribed modification to the Door 2 escape slide/raft on certain Boeing 747SPs equipped with BFGoodrich evacuation systems, to be done per BFGoodrich Service Bulletin 7A1255-25-275 by 31 December 1998. The AD responds to a reported failure of a Door 2 slide/raft to inflate; affected operators must arrange and fund the retrofit, scheduling work and accepting associated downtime or seeking approved alternatives."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating a safety modification to escape slide/raft systems."},"complexity_factors":["Very short document (approximately 150 words)","Only 1 defined term implicitly referenced (Service Bulletin number)","Single, unambiguous compliance requirement with clear deadline","No nested exceptions or conditional logic","Minimal cross-referencing (only one FAA AD mentioned for background)","Straightforward applicability test (specific aircraft model + specific equipment)"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of specific Boeing 747SP aircraft to fix a dangerous defect in the emergency escape slide at Door 2.\n\n**What the problem is:**\nThe FAA (American aviation regulator) discovered that the escape slide/raft at Door 2 on some Boeing 747SP planes could fail to inflate automatically after being deployed onto the wing during an emergency. This means passengers and crew might be trapped without a working escape route.\n\n**Who must act:**\nAnyone operating a **Boeing 747SP** aircraft that uses **BFGoodrich evacuation systems** (specifically those covered by Service Bulletin 7A1255-25-275).\n\n**What they must do:**\nModify or replace the faulty escape slide/raft following the manufacturer's instructions in **BFGoodrich Service Bulletin 7A1255-25-275**.\n\n**When:**\nThe fix must be completed **before 31 December 1998**.\n\n**Why it matters:**\nEmergency evacuation systems must work perfectly. A slide that doesn't inflate could cost lives during an emergency landing or evacuation."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-156-door-2-escape-slide-raft","history":"/api/acts/ad-b747-156-door-2-escape-slide-raft/history","analysis":"/api/acts/ad-b747-156-door-2-escape-slide-raft/analysis","conflicts":"/api/acts/ad-b747-156-door-2-escape-slide-raft/conflicts","importantCases":"/api/acts/ad-b747-156-door-2-escape-slide-raft/important-cases","documents":"/api/acts/ad-b747-156-door-2-escape-slide-raft/documents"}}