{"id":"F2006L02239","name":"AD/B737/289 - Fuel Shutoff Valve Wiring and Conduit Assemblies","slug":"ad-b737-289-fuel-shutoff-valve-wiring-and-conduit-assemblies","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":117565,"registerId":"commonwealth-F2006L02239-current","compilationNumber":null,"startDate":"2026-04-03","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/B737/289 | Fuel Shutoff Valve Wiringand Conduit Assemblies | 8/2006 |\n| ----------- | ----------------------------------------------- | ------ |\n\n| Applicability: | Model 737-600, -700, -700C, -800 and -900 series aeroplanes, as listed in Boeing Special Attention Service Bulletin (SB) 737-28-1199, Revision 1, dated15 December 2005.                                                                                                                                 |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Replace the fuel shutoff valve wires and conduit assemblies in the left and right engine strut aft fairing areas with new fuel shutoff valve wires and conduit assemblies, in accordance with the Accomplishment Instructions of Special Attention SB 737-28-1199, Revision 1.                           |\n|                | Actions accomplished before the effective date of this Directive in accordance with Special Attention Service Bulletin 737-28-1199, dated 9 September 2004, are considered acceptable for compliance with the applicable action specified in this Directive.                                             |\n|                | Later revisions of the above SB, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2006-12-11, are considered acceptable for compliance with the equivalent Requirements of this Directive.                                      |\n|                | Note: FAA AD 2006-12-11 Amdt 39-14636 refers.                                                                                                                                                                                                                                                            |\n| Compliance:    | Within 36 months after the effective date of this Directive.                                                                                                                                                                                                                                             |\n|                | This Airworthiness Directive becomes effective on 3 August 2006.                                                                                                                                                                                                                                         |\n| Background:    | The FAA has received a report that an operator discovered many small chafe marks and exposed shield braid on fuel shutoff wires routed through a conduit in the wing. Exposed wires could provide an ignition source in a flammable leakage zone and possibly lead to an uncontrolled fire or explosion. |\n\n|     | This Directive requires replacing the fuel shutoff valve wires and conduit assemblies in the left and right engine strut aft fairing areas. |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n21 June 2006","sortOrder":0},{"sectionNumber":"AD/B737/289","sectionType":"part","heading":"AD/B737/289","content":"## AD/B737/289","sortOrder":1},{"sectionNumber":"Fuel Shutoff Valve Wiringand Conduit Ass","sectionType":"part","heading":"Fuel Shutoff Valve Wiringand Conduit Assemblies","content":"## Fuel Shutoff Valve Wiring  \nand Conduit Assemblies","sortOrder":2},{"sectionNumber":"8/2006","sectionType":"part","heading":"8/2006","content":"## 8/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope remains focused on replacing fuel shutoff valve wiring and conduit assemblies on the specific 737 models listed in Boeing SB 737-28-1199. The Directive does not expand to other systems or aircraft types; it explicitly accepts earlier compliance with the original SB and later SB revisions approved by the FAA as equivalent means of compliance."},"complexity_factors":["Narrow applicability to listed Boeing 737 series models as per Boeing SB 737-28-1199","Single, discrete technical action: replace fuel shutoff valve wires and conduit assemblies","Compliance tied to manufacturer's service bulletin instructions (Accomplishment Instructions)","Acceptance of prior SB compliance and later SB revisions approved by FAA as AMOCs introduces cross-jurisdictional equivalence","Fixed compliance window (36 months) and clear effective date","Reference to FAA AD 2006-12-11 creates dependency on foreign regulator documentation"],"plain_english_summary":"*AD/B737/289* requires operators of specified Boeing 737-600/700/700C/800/900 series aeroplanes to replace the fuel shutoff valve wires and conduit assemblies in the left and right engine strut aft fairing areas, following Boeing Special Attention SB 737-28-1199 (or accepted revisions), within 36 months. The change responds to FAA reports of chafed wiring that could expose shield braid and create an ignition source; operators must pay for and carry out the replacements, and CASA enforces the deadline."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope: mandating a specific wiring replacement on specific Boeing 737 models to address a identified safety defect. There is no evidence of scope creep; the document is a straightforward adoption of a US FAA safety directive for Australian-registered aircraft."},"complexity_factors":["Single, specific technical requirement (wire replacement) with clear reference to external technical standard (Boeing Service Bulletin)","Minimal conditional logic: only two exceptions/variances (prior compliance under earlier SB version, and future AMOC approvals)","No defined terms section — relies entirely on referenced external documents for technical specifications","Short document (approximately 300 words of substantive content)","Clear applicability criteria listing specific aircraft models by reference to Boeing document","Single compliance deadline with no phased or conditional timelines"],"plain_english_summary":"This AD requires operators of Boeing 737-600/700/700C/800/900 (NG) series to replace worn fuel shutoff valve wiring and protective conduit in the engine strut areas because chafed wiring and exposed shielding could ignite fuel leaks. Work must follow Boeing Service Bulletin 737-28-1199 (Rev 1) and be done within 36 months of 3 Aug 2006.\n\nEarlier compliant repairs and FAA‑approved alternate methods of compliance are accepted."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-289-fuel-shutoff-valve-wiring-and-conduit-assemblies","history":"/api/acts/ad-b737-289-fuel-shutoff-valve-wiring-and-conduit-assemblies/history","analysis":"/api/acts/ad-b737-289-fuel-shutoff-valve-wiring-and-conduit-assemblies/analysis","conflicts":"/api/acts/ad-b737-289-fuel-shutoff-valve-wiring-and-conduit-assemblies/conflicts","importantCases":"/api/acts/ad-b737-289-fuel-shutoff-valve-wiring-and-conduit-assemblies/important-cases","documents":"/api/acts/ad-b737-289-fuel-shutoff-valve-wiring-and-conduit-assemblies/documents"}}