{"id":"F2008L04572","name":"AD/B767/248 - Fuel Quantity Indicating System Wire Bundles","slug":"ad-b767-248-fuel-quantity-indicating-system-wire-bundles","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120899,"registerId":"commonwealth-F2008L04572-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 767 Series Aeroplanes","sectionType":"division","heading":"Boeing 767 Series Aeroplanes","content":"### Boeing 767 Series Aeroplanes\n\n| AD/B767/248 | Fuel Quantity Indicating System Wire Bundles | 1/2009 |\n| ----------- | -------------------------------------------- | ------ |\n\n| Applicability: | Model 767-200 and -300 series aeroplanes, as identified in Boeing Alert Service Bulletin (ASB) 767-28A0064, Revision 2, dated 27 October 2005. |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement: | Replace the wire segments of the four Fuel Quantity Indicating System (FQIS) wire bundles with new, improved wire segments, in accordance with the Accomplishment Instructions of ASB 767-28A0064, Revision 2. |\n| | Actions accomplished before the effective date of this Directive in accordance with ASB 767-28A0064 original issue, dated 31 May 2001 or Revision 1, dated21 February 2002, are considered acceptable for compliance with the corresponding actions specified in this Directive. |\n| | Later revisions of ASB 767-28A0064, Revision 2, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2008-22-06, are considered acceptable for compliance with the equivalent Requirements of this Directive. |\n| | Note: FAA AD 2008-22-06 Amdt 39-15701 refers. |\n| Compliance: | Within 36 months after the effective date of this Directive. |\n| | This Airworthiness Directive becomes effective on 15 January 2009. |\n| Background: | This Directive results from operator inspections of the FQIS wire bundles that revealed corrosion at the connections between the ground wire and shield of each of the four FQIS wire bundles. The Directive is issued to prevent this corrosion, which could reduce system protection of the lightning shield and result in loss of the electrical grounding between the lightning shield and the airplane structure. This condition, in combination with flammable fuel vapours, could result in fuel tank explosions and consequent loss of the aeroplane. |\n\n![](image.001.png) \nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n27 November 2008","sortOrder":0},{"sectionNumber":"AD/B767/248","sectionType":"part","heading":"AD/B767/248","content":"## AD/B767/248","sortOrder":1},{"sectionNumber":"Fuel Quantity Indicating System Wire Bun","sectionType":"part","heading":"Fuel Quantity Indicating System Wire Bundles","content":"## Fuel Quantity Indicating System Wire Bundles","sortOrder":2},{"sectionNumber":"1/2009","sectionType":"part","heading":"1/2009","content":"## 1/2009","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive maintains the original safety scope: require replacement of specified FQIS wire segments to prevent corrosion-related loss of shielding and grounding. It does not broaden affected systems or aircraft beyond those identified in the Boeing ASB. The text expressly accepts actions done per earlier ASB issues and FAA‑approved alternate methods of compliance, which preserves flexibility but does not change the population or core requirement."},"complexity_factors":["Narrow applicability: limited to Model 767‑200 and ‑300 aircraft as identified in the Boeing ASB (reduces breadth).","Single clear technical action: replace FQIS wire segments per the ASB (reduces procedural complexity).","Dependence on external documents: compliance tied to Boeing ASB 767‑28A0064 Rev 2 and acceptable earlier ASB issues or FAA‑approved AMOCs (adds cross‑reference complexity).","Fixed compliance window of 36 months (scheduling/operational impact for operators).","Maintenance access and potential aircraft downtime to reach wiring and perform replacements (practical implementation cost).","Acceptance of prior work and later FAA AMOCs introduces conditional compliance paths (moderate administrative discretion)."],"plain_english_summary":"Requires operators of Boeing 767‑200 and ‑300 aeroplanes identified in Boeing Alert Service Bulletin (ASB) 767‑28A0064 Rev 2 to replace the wire segments in the four Fuel Quantity Indicating System (FQIS) wire bundles with improved parts, per the ASB. Operators must complete the replacement within 36 months of the directive's effective date.\n\nThe directive responds to discovered corrosion at ground‑wire/shield connections that could reduce lightning shielding and electrical grounding. CASA issued the directive; aircraft operators pay for and schedule the work, and FAA‑approved alternate compliance methods 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"},"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 767 models to address a identified corrosion safety risk. There is no evidence of scope creep; it is a targeted safety intervention consistent with standard aviation regulatory practice."},"complexity_factors":["Single, specific technical requirement (wire replacement) with clear reference to external technical document (Boeing ASB)","Only one defined term of note (FQIS - Fuel Quantity Indicating System)","Simple compliance timeline (36 months from effective date)","Limited conditional logic: two grandfathering provisions for earlier repairs and one provision for future FAA-approved alternatives","No nested exceptions or complex cross-referencing between multiple legislative instruments","Short document (approximately 250 words of substantive content)","Single regulatory instrument type (Airworthiness Directive) with standard CASA format"],"plain_english_summary":"This AD mandates replacement of aged wiring in the Fuel Quantity Indicating System on certain Boeing 767-200/-300 aircraft after inspections found corrosion at ground-to-shield connections. Corroded shielding and poor grounding increase the risk of lightning-induced ignition of fuel vapours and potential fuel-tank explosions.\n\nAffected operators must install Boeing‑specified improved wire assemblies within 36 months of 15 Jan 2009; prior compliance under earlier Boeing bulletins or FAA‑approved revisions is accepted."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-248-fuel-quantity-indicating-system-wire-bundles","history":"/api/acts/ad-b767-248-fuel-quantity-indicating-system-wire-bundles/history","analysis":"/api/acts/ad-b767-248-fuel-quantity-indicating-system-wire-bundles/analysis","conflicts":"/api/acts/ad-b767-248-fuel-quantity-indicating-system-wire-bundles/conflicts","importantCases":"/api/acts/ad-b767-248-fuel-quantity-indicating-system-wire-bundles/important-cases","documents":"/api/acts/ad-b767-248-fuel-quantity-indicating-system-wire-bundles/documents"}}