{"id":"F2006B03223","name":"AD/B747/42 - Evacuation Slides/Rafts - Modification","slug":"ad-b747-42-evacuation-slides-rafts-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42621,"registerId":"commonwealth-F2006B03223-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/42 - Evacuation Slides/Rafts - Modification","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/B747/42 Evacuation Slides/Rafts - Modification 6/85\n\nApplicability: All models equipped with B.F. Goodrich evacuation slides and slide/rafts, part numbers as specified in B.F. Goodrich Service Bulletins listed below.\n\n \n\nRequirement: B.F. Goodrich S.B. 25-090 R.1 B.F. Goodrich S.B. 25-084 B.F. Goodrich S.B. 25- 088 R.1\n\n \n\nNote: FAA AD 85-02-01 refers.\n\n \n\nCompliance: Prior to 31 March 1986.\n\n \n\nBackground: Evacuation slides/rafts have been subject to malfunction or non-inflation to an unacceptable level. The modifications contained in this directive should restore successful deployment rates.\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 source text sets out the scope clearly: all Boeing 747 models equipped with the specified B.F. Goodrich evacuation slides/slide-rafts must be modified per the listed service bulletins by the stated deadline. The instrument does not indicate any change from an earlier scope within this text, so there is no evidence here that the applicable scope has been altered from the original intent."},"complexity_factors":["Technical compliance depends on external manufacturer service bulletins rather than detailed steps in the directive itself (Requirement).","A firm, time-bound compliance deadline is specified (Compliance), creating scheduling and resource constraints for operators.","Applicability is narrow but precise: applies to all Boeing 747 models fitted with the specified B.F. Goodrich slides/slide-rafts (Applicability).","The directive references another authority (FAA AD 85-02-01), introducing cross-jurisdictional alignment considerations (Note).","The directive states the intended safety outcome but does not quantify inspection/verification procedures or resource implications within the text (Background; Requirement)."],"plain_english_summary":"This directive requires Boeing 747s fitted with certain B.F. Goodrich evacuation slides/slide‑rafts to be retrofitted per the referenced B.F. Goodrich service bulletins by 31 March 1986. It aims to restore reliable slide/raft inflation after reported failures and notes a corresponding FAA AD.\n\nOwners/operators must schedule and pay for the modifications (labour, parts, shop time) and follow the service‑bulletin procedures; compliance timing and reliance on those bulletins are the principal operational and implementation risks."},"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. It has not expanded beyond its original purpose of mandating slide/raft modifications."},"complexity_factors":["Very short document (under 200 words)","Only 3 defined references (the B.F. Goodrich Service Bulletins)","Single, unambiguous compliance requirement with fixed deadline","No nested conditions, exceptions, or cross-references to other legislation beyond a single note referencing the equivalent FAA directive","Clear applicability statement targeting specific aircraft models and part numbers"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for aircraft.\n\n**What it does:** It requires owners and operators of Boeing 747 aircraft to modify or replace certain evacuation slides and slide/rafts made by B.F. Goodrich. These are the inflatable escape chutes that deploy from aircraft doors during an emergency.\n\n**Why it matters:** The slides were failing to inflate properly at an \"unacceptable level\" — meaning passengers and crew could be trapped during an emergency evacuation. The directive mandates specific technical fixes (detailed in three B.F. Goodrich Service Bulletins) to ensure the slides work when lives depend on them.\n\n**Who must comply:** Anyone operating a Boeing 747 equipped with the affected B.F. Goodrich evacuation equipment, identified by specific part numbers in the manufacturer's bulletins.\n\n**Deadline:** The modifications had to be completed before 31 March 1986.\n\n**Key point:** This is a retrospective safety fix — it addresses a known defect in existing equipment rather than setting standards for new manufacturing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-42-evacuation-slides-rafts-modification","history":"/api/acts/ad-b747-42-evacuation-slides-rafts-modification/history","analysis":"/api/acts/ad-b747-42-evacuation-slides-rafts-modification/analysis","conflicts":"/api/acts/ad-b747-42-evacuation-slides-rafts-modification/conflicts","importantCases":"/api/acts/ad-b747-42-evacuation-slides-rafts-modification/important-cases","documents":"/api/acts/ad-b747-42-evacuation-slides-rafts-modification/documents"}}