{"id":"F2006B03120","name":"AD/B747/22 - Escape Slide/Raft Lanyard Assembly - Inspection","slug":"ad-b747-22-escape-slide-raft-lanyard-assembly-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42492,"registerId":"commonwealth-F2006B03120-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/22 - Escape Slide/Raft Lanyard Assembly - Inspection","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/B747/22 Escape Slide/Raft Lanyard Assembly - Inspection 3/80\n\nApplicability: All model 747 equipped with escape slide/raft assemblies P/N 7A1238, 7A1239, 7A1255, 7A1256, 7A1257 and 7A1261, manufactured prior to January 1979.\n\n \n\nDocument: FAA AD 79-18-02, Amdt. 39-3537.\n\n \n\nNote: Boeing Alert SB No. 747-25A2467 and B.F. Goodrich Alert SB No. 25-051 refer.\n\n \n\nCompliance: Unless already accomplished initially inspect before 1 June 1980 and thereafter at intervals not exceeding 1 year.\n\n \n\nBackground: During slide/raft refurbishment a number of firing lanyard assemblies have been found corroded and/or frayed.\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 discrete, targeted safety directive focused specifically on inspecting lanyard assemblies on pre-1979 Boeing 747 escape slides. It has not expanded beyond its original narrow technical purpose."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 6 specific part numbers to identify affected equipment","Single compliance requirement with clear deadline and interval","No defined terms section or interpretation provisions","No cross-references to other legislation beyond advisory service bulletins","Simple conditional: 'Unless already accomplished' is the only exception","No nested logic or sub-delegations"],"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 maintenance actions on aircraft.\n\n**What it does:** It orders airlines and aircraft operators to inspect the escape slide/raft lanyard assemblies on certain Boeing 747 aircraft. A lanyard assembly is the cord or cable system that triggers the emergency inflatable slides/rafts to deploy.\n\n**Who it affects:** \n- **Aircraft:** All Boeing 747 models equipped with specific escape slide/raft part numbers (7A1238, 7A1239, 7A1255, 7A1256, 7A1257, and 7A1261) that were manufactured before January 1979.\n- **Operators:** Airlines and companies operating these specific aircraft in Australia.\n\n**Why it matters:** During routine refurbishment, authorities discovered that some firing lanyards were corroded or frayed. A damaged lanyard could fail to deploy the emergency escape slide or raft during an evacuation, potentially trapping passengers and crew during an emergency. This directive prevents that catastrophic failure by mandating regular inspections.\n\n**What must be done:**\n- **First inspection:** Must be completed before 1 June 1980\n- **Ongoing inspections:** Must be repeated at least once every year\n- **Unless already done:** If an operator already inspected their equipment, they don't need to do it again immediately — just follow the yearly schedule\n\n**Key documents referenced:**\n- Original US Federal Aviation Administration (FAA) directive 79-18-02\n- Boeing Alert Service Bulletin 747-25A2467\n- B.F. Goodrich Alert Service Bulletin 25-051"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive's scope is the inspection of specified escape slide/raft lanyard assemblies on all Boeing 747 models when those assemblies were manufactured prior to January 1979 (Applicability). The text implements a recurring inspection requirement in response to corrosion/fraying found during refurbishment (Background) and does not indicate any change from that stated intent."},"complexity_factors":["Narrow technical scope limited to specific part numbers and aircraft (Applicability)","Simple, fixed compliance timing (initial inspection by 1 June 1980, then yearly) (Compliance)","Dependence on external, technical service bulletins and an FAA AD for inspection procedures (Document; Note)","Potential operational coordination required for inspection and replacement logistics across affected fleet","No detailed corrective-action or recordkeeping steps included in the directive text (Background; Document)"],"plain_english_summary":"This directive requires operators of Boeing 747s fitted with certain escape slide/raft firing lanyards (those manufactured before January 1979) to inspect those assemblies for corrosion or fraying. An initial inspection must be done by 1 June 1980 if not already completed, with recurring inspections at intervals not exceeding one year. It affects operators and maintenance organisations (who bear inspection and repair costs) and points them to FAA/Boeing/B.F. Goodrich service guidance for procedures."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-22-escape-slide-raft-lanyard-assembly-inspection","history":"/api/acts/ad-b747-22-escape-slide-raft-lanyard-assembly-inspection/history","analysis":"/api/acts/ad-b747-22-escape-slide-raft-lanyard-assembly-inspection/analysis","conflicts":"/api/acts/ad-b747-22-escape-slide-raft-lanyard-assembly-inspection/conflicts","importantCases":"/api/acts/ad-b747-22-escape-slide-raft-lanyard-assembly-inspection/important-cases","documents":"/api/acts/ad-b747-22-escape-slide-raft-lanyard-assembly-inspection/documents"}}