{"id":"F2006B02940","name":"AD/B737/41 - Forward Door Evacuation Slides","slug":"ad-b737-41-forward-door-evacuation-slides","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42282,"registerId":"commonwealth-F2006B02940-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B737/41 - Forward Door Evacuation Slides","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/B737/41 Forward Door Evacuation Slides 8/90\n\nApplicability: Models 737-300 and 737-400 equipped with Air Cruisers Company forward door evacuation slides P/N D31591-448 through -454 with S/Nos 0001 to 1602.\n\n \n\nRequirement: Action in accordance with Air Cruisers Company SB 103-25-17.\n\n \n\nNote 1: FAA AD 90-09-11 refers.\n\n \n\nNote 2: Boeing SB 737-25-1260 refers.\n\n \n\nCompliance: Prior to 9 August 1993.\n\n \n\nBackground: Country of origin AD. Evacuation slides may fail to automatically inflate upon deployment, and if not corrected could delay emergency evacuations.\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 addressing a specific mechanical defect in specific aircraft. It has not expanded beyond its original purpose of mandating a fix for faulty evacuation slides."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined applicability criteria (specific aircraft models and specific part/serial number ranges)","Single requirement referencing an external technical document (Service Bulletin)","No nested conditional logic or exceptions","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","Straightforward compliance deadline with no alternative methods or phased implementation"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific Boeing 737 aircraft.\n\n**What it does:**\nOrders airlines and aircraft operators to inspect and fix a problem with emergency evacuation slides on certain Boeing 737-300 and 737-400 planes. The slides, made by Air Cruisers Company, might fail to automatically inflate when deployed in an emergency. If they don't inflate, passengers and crew could be trapped or delayed during an evacuation.\n\n**Who it affects:**\n- Operators of Boeing 737-300 and 737-400 aircraft\n- Specifically those with Air Cruisers forward door evacuation slides with part numbers D31591-448 through D31591-454 and serial numbers 0001 to 1602\n\n**What must be done:**\nOperators must follow the repair instructions in **Air Cruisers Company Service Bulletin 103-25-17** (a technical notice from the manufacturer detailing the fix).\n\n**When:**\nThe fix had to be completed before 9 August 1993.\n\n**Why it matters:**\nEmergency evacuation slides are critical safety equipment. If they fail to inflate automatically, precious seconds are lost during an emergency evacuation — potentially endangering lives. This directive ensures the defect is corrected before it causes harm.\n\n**References:**\n- Based on a US Federal Aviation Administration (FAA) directive (AD 90-09-11)\n- Related to Boeing Service Bulletin 737-25-1260"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD's scope remains what the text sets out: it targets forward door evacuation slides with specific part numbers and serial numbers installed on Boeing 737-300 and 737-400 aeroplanes and requires action in accordance with Air Cruisers SB 103-25-17 to be completed before 9 August 1993. The instrument does not expand or narrow that applicability beyond the explicit lists and deadline in the text (Applicability, Requirement, Compliance). (AD/B737/41)"},"complexity_factors":["Narrow technical applicability: specific aircraft models plus exact slide part numbers and serial number range (Applicability). (AD/B737/41)","Delegation to an external service bulletin for technical steps — the AD mandates compliance with Air Cruisers SB 103-25-17 rather than specifying remedial actions itself (Requirement). (AD/B737/41)","Hard compliance deadline requiring scheduling of maintenance and possible aircraft downtime (Compliance). (AD/B737/41)","Cross-references to foreign documents (FAA AD 90-09-11 and Boeing SB 737-25-1260) that operators may need to consult for technical or corroborating information (Note 1, Note 2). (AD/B737/41)","Administrative tasks: identification and tracking of part numbers/serial numbers on installed equipment to determine who is affected (Applicability). (AD/B737/41)","Operational resource implications: need for parts, labour and approved maintenance organisations to execute the SB work (Requirement). (AD/B737/41)"],"plain_english_summary":"This AD requires owners/operators of certain Boeing 737-300/-400 aircraft to carry out the Air Cruisers Service Bulletin 103-25-17 on forward door evacuation slides with specified part and serial numbers, making that SB mandatory and enforceable before 9 August 1993. It affects operators and maintenance organisations, shifts costs and scheduling burden to operators, and aims to fix a reported risk that affected slides may not auto‑inflate during evacuation."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-41-forward-door-evacuation-slides","history":"/api/acts/ad-b737-41-forward-door-evacuation-slides/history","analysis":"/api/acts/ad-b737-41-forward-door-evacuation-slides/analysis","conflicts":"/api/acts/ad-b737-41-forward-door-evacuation-slides/conflicts","importantCases":"/api/acts/ad-b737-41-forward-door-evacuation-slides/important-cases","documents":"/api/acts/ad-b737-41-forward-door-evacuation-slides/documents"}}