{"id":"F2006B02979","name":"AD/B737/78 - Evacuation Slide Valise","slug":"ad-b737-78-evacuation-slide-valise","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42338,"registerId":"commonwealth-F2006B02979-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B737/78 - Evacuation Slide Valise","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 737 Series Aeroplanes\n\n \n\nAD/B737/78 Evacuation Slide Valise 13/93\n\nApplicability: Model 737-200, -300, -400 and -500 series aircraft equipped with BFGoodrich evacuation slides, as listed in BFGoodrich Service Bulletin 101658/659/660-25-257.\n\n \n\nRequirement: Modify the evacuation slide valise in accordance with BFGoodrich Service Bulletin 101658/659/660-25-257.\n\n \n\nNote: FAA AD 93-17-03 Amdt 39-8673 refers.\n\n \n\nCompliance: Prior to 7 October 1996.\n\n \n\nBackground: The FAA received three reports of evacuation slide inflation pressure loss. The pressure loss was found to be due to the failure of the aspirator to close and seal, after the battery test lead was ingested. As a consequence the slide was rendered inoperative.\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 AD’s scope aligns with its stated safety purpose: it targets specific 737 models fitted with particular BFGoodrich slides and mandates a defined modification per the supplier's service bulletin to address a reported aspirator sealing fault. The directive does not expand beyond those aircraft/equipment or add unrelated obligations."},"complexity_factors":["Narrow applicability: limited to Model 737-200, -300, -400 and -500 series aircraft equipped with BFGoodrich evacuation slides listed in BFGoodrich Service Bulletin 101658/659/660-25-257 (Applicability).","Single prescriptive action: a one-step modification requirement to be done in accordance with the named BFGoodrich Service Bulletin (Requirement).","Fixed compliance deadline: specific date for completion (Compliance: Prior to 7 October 1996).","Dependence on external technical material: implementation requires access to and reliance on the BFGoodrich Service Bulletin and coordination with its instructions (Requirement).","Cross-reference to foreign regulator action: cites FAA AD 93-17-03, indicating alignment with an external airworthiness action (Note).","Safety-critical consequence but mechanically targeted fix: background describes a specific failure mode (aspirator sealing after battery test lead ingestion) rather than broad regulatory change (Background)."],"plain_english_summary":"Requires operators of Boeing 737-200/300/400/500 aircraft fitted with specified BFGoodrich evacuation slides to modify the slide valise per BFGoodrich Service Bulletin 101658/659/660-25-257 before 7 October 1996. The modification addresses reports that an aspirator failed to seal after a battery test lead was ingested, causing inflation pressure loss and rendering slides inoperative. It matters because affected operators must implement the technical fix by the deadline to restore reliable emergency inflation."},"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 in specific aircraft models. It has not expanded beyond its original purpose of mandating a single modification to prevent evacuation slide failures."},"complexity_factors":["Single, unambiguous requirement with clear applicability criteria","Only 4 defined model variants specified","One external reference to a service bulletin (BFGoodrich SB 101658/659/660-25-257)","Single compliance deadline with no conditional exceptions","No nested definitions, cross-references to other legislation, or discretionary provisions","Background explanation provided in plain narrative form"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — essentially a mandatory safety fix ordered by Australia's aviation regulator (CASA) for specific Boeing 737 aircraft.\n\n**Who it affects:** Owners and operators of Boeing 737-200, -300, -400, and -500 series planes that use BFGoodrich evacuation slides (emergency inflatable escape chutes).\n\n**What it requires:** Airlines must modify the \"valise\" (the protective container/pack that holds the folded evacuation slide) following instructions in a BFGoodrich service bulletin. This prevents a specific failure where a battery test lead could get sucked into the slide's aspirator (a device that draws in air to inflate the slide), stopping it from sealing properly and causing the slide to lose pressure and fail in an emergency.\n\n**Why it matters:** Three reported cases of slides failing to inflate properly prompted this action. In an emergency evacuation, a non-working slide could trap passengers inside a burning or damaged aircraft. The deadline for compliance was 7 October 1996.\n\n**Key point:** This directive references an American FAA safety order (AD 93-17-03), showing how Australia often adopts US aviation safety standards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-78-evacuation-slide-valise","history":"/api/acts/ad-b737-78-evacuation-slide-valise/history","analysis":"/api/acts/ad-b737-78-evacuation-slide-valise/analysis","conflicts":"/api/acts/ad-b737-78-evacuation-slide-valise/conflicts","importantCases":"/api/acts/ad-b737-78-evacuation-slide-valise/important-cases","documents":"/api/acts/ad-b737-78-evacuation-slide-valise/documents"}}