{"id":"F2005L02081","name":"AD/B737/245 - Secondary Fuel Vapor Barrier","slug":"ad-b737-245-secondary-fuel-vapor-barrier","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":36290,"registerId":"commonwealth-F2005L02081-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 737 Series Aeroplanes","sectionType":"division","heading":"Boeing 737 Series Aeroplanes","content":"### Boeing 737 Series Aeroplanes\n\n| AD/B737/245 | Secondary Fuel Vapor Barrier | 9/2005 |\n| ----------- | ---------------------------- | ------ |\n\n| Applicability: | Models 737-200, -200C, -300, -400, and -500 series aircraft, line numbers 311 through 3132.Models 737-600, -700, -700C, -800, and -900 series aircraft, line numbers 1 through 1088, and 1090 through 1134.                                                                                                                                                                                              |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2005-13-15 Amdt 39-14152.Note: Boeing Special Attention Service Bulletins 737-57-1261 and 737-57-1250 Revision 1, or later FAA approved revisions, refer.                                                                                                                                                                                 |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of 1 September 2005.                                                                                                                                                                                                                                                                                                             |\n|                | This Airworthiness Directive becomes effective on 1 September 2005.                                                                                                                                                                                                                                                                                                                                      |\n| Background:    | The FAA received reports that the secondary fuel vapour barrier was not applied correctly to, or was missing from, certain areas of the wing centre section. The actions required by this Directive are intended to prevent fuel or fuel vapours from leaking into the cargo or passenger compartments and coming into contact with a possible ignition source, which could result in fire or explosion. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n21 July 2005","sortOrder":0},{"sectionNumber":"AD/B737/245","sectionType":"part","heading":"AD/B737/245","content":"## AD/B737/245","sortOrder":1},{"sectionNumber":"Secondary Fuel Vapor Barrier","sectionType":"part","heading":"Secondary Fuel Vapor Barrier","content":"## Secondary Fuel Vapor Barrier","sortOrder":2},{"sectionNumber":"9/2005","sectionType":"part","heading":"9/2005","content":"## 9/2005","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"This directive adopts the FAA's technical requirements for the secondary fuel vapour barrier for the listed 737 models and line numbers without expanding or narrowing the described hazard or affected fleet beyond the FAA AD and referenced Boeing service bulletins (Requirement; Applicability; Background)."},"complexity_factors":["Model- and line-number-specific applicability narrows who must comply (Applicability)","Mandates compliance with an external FAA AD (2005-13-15), creating cross-jurisdictional reliance (Requirement)","References Boeing Special Attention Service Bulletins 737-57-1261 and 737-57-1250 Revision 1 as the technical method (Requirement)","Work requires specialised inspection and repair of wing centre section structures and sealant application (implied by Background and Service Bulletins)","Compliance timing and an effective date (1 September 2005) require operators to schedule maintenance to avoid operational disruption (Compliance)","Regulatory enforcement and continued conformity depend on CASA's adoption of the FAA technical requirements (Compliance)"],"plain_english_summary":"This airworthiness directive requires owners/operators of specified Boeing 737 models and line numbers to inspect for, and where missing or incorrectly applied, install a secondary fuel vapour barrier on the wing centre section in line with FAA AD 2005-13-15 and Boeing service bulletins. (Applicability; Requirement; Compliance). The Civil Aviation Safety Authority made the directive effective 1 September 2005; operators pay for and must schedule the maintenance to prevent fuel or vapour entering passenger or cargo compartments. (Background)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific manufacturing defect on specific aircraft models. It has not expanded beyond its original purpose of mandating repairs to the fuel vapour barrier."},"complexity_factors":["Very short document (under 300 words)","Only 4 substantive sections: Applicability, Requirement, Compliance, and Background","No defined terms section — technical terms are used in their ordinary aviation sense","Single cross-reference to an external FAA directive and Boeing service bulletins","No conditional logic, exceptions, or nested provisions","Straightforward compliance deadline (single fixed date)"],"plain_english_summary":"This CASA Airworthiness Directive orders mandatory inspections and repairs on certain Boeing 737 Classic and Next Generation aeroplanes where a protective secondary fuel vapour barrier in the wing centre section was missing or incorrectly applied during manufacture.  \n\nOperators must follow FAA AD 2005‑13‑15 and Boeing service bulletins to restore the barrier because fuel or vapour could leak into passenger or cargo areas and create a fire/explosion risk. Effective 1 September 2005."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-245-secondary-fuel-vapor-barrier","history":"/api/acts/ad-b737-245-secondary-fuel-vapor-barrier/history","analysis":"/api/acts/ad-b737-245-secondary-fuel-vapor-barrier/analysis","conflicts":"/api/acts/ad-b737-245-secondary-fuel-vapor-barrier/conflicts","importantCases":"/api/acts/ad-b737-245-secondary-fuel-vapor-barrier/important-cases","documents":"/api/acts/ad-b737-245-secondary-fuel-vapor-barrier/documents"}}