{"id":"F2006B03160","name":"AD/B747/264 - Flight Engineer Panel - Electrical Wire Bundles","slug":"ad-b747-264-flight-engineer-panel-electrical-wire-bundles","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42532,"registerId":"commonwealth-F2006B03160-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)![](image.001.png)AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\nBoeing 747 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B747/264 Flight Engineer Panel - Elec","sectionType":"part","heading":"AD/B747/264 Flight Engineer Panel - Electrical Wire Bundles 2/2002","content":"# AD/B747/264 Flight Engineer Panel \\- Electrical Wire Bundles 2/2002\n\nApplicability: Model 747 series aeroplanes, as listed in Boeing Alert Service Bulletin (ASB) 747- 24A2118, Revision 3, dated 24 June 1999.\n\nRequirement: 1. Perform a one-time detailed visual inspection for chafing of certain electrical wire bundles behind the P4 flight engineer's panel in the cockpit in accordance with ASB 747-24A2118, Revision 3.\n\nInspections and follow-on actions accomplished before the effective date of this Directive in accordance with Boeing Service Bulletin 747-24-2118, dated 9 February 1989; Revision 1, dated 11 May 1989; or Revision 2, dated 21 December 1989; are acceptable for compliance with the corresponding actions required by this Directive.\n\nNote 1: For the purposes of this Directive, a detailed visual inspection is defined as: \"An intensive visual examination of a specific structural area, system, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at intensity deemed appropriate by the inspector. Inspection aids such as mirror, magnifying lenses, etc., may be used. Surface cleaning and elaborate access procedures may be required.''\n\n    2. If any chafing is found during the Requirement 1 inspection, repair the chafed wire bundles in accordance with ASB 747-24A2118, Revision 3.\n\n    3. Wrap the electrical wire bundles with Teflon sleeving and reroute them, in accordance with ASB 747-24A2118, Revision 3.\n\nWhere Boeing ASB 747-24A2118, Revision 3, specifies that certain procedures may be accomplished per an \"operator's comparable procedure,'' the procedures must be accomplished per the applicable chapter of the Boeing 747 Airplane Maintenance Manual (AMM) specified in the service bulletin.\n\nNote 2: FAA AD 2001-24-31 Amdt 39-12548 refers.\n\nCompliance: For Requirement 1 \\- Before 16 January 2003.\n\nFor Requirement 2 \\- Before further flight, following the Requirement 1 inspection.","sortOrder":1}],"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":"The AD implements the inspection, repair and modification measures specified in Boeing ASB 747‑24A2118 Revision 3 and expressly accepts prior compliance under earlier SB revisions; it does not expand applicability beyond the aircraft listed in that ASB and therefore does not change the scope of affected aircraft from the ASB’s coverage."},"complexity_factors":["Cross-reference to an external technical document (Boeing ASB 747‑24A2118 Rev 3) — mandatory reliance on proprietary procedures.","Conditional acceptance of earlier service bulletin revisions for compliance — requires operators to verify previous works against AD requirements.","Multiple sequential actions: inspect, repair if chafed, then wrap/reroute — creates conditional compliance pathways.","Inclusion of a technical definition of “detailed visual inspection” — sets minimum inspection standard but requires technical judgement and tools.","Direction that some ASB‑permitted ‘‘operator's comparable procedure’’ work be done per Boeing 747 AMM — introduces operator procedural discretion and variance.","Applicability tied to parts/models listed in the ASB — operators must confirm inclusion before applying AD.","Compliance timing: a fixed deadline for inspection and an immediate (before further flight) requirement for repairs increase operational scheduling pressure.","Reference to FAA AD 2001‑24‑31 — cross‑jurisdictional regulatory alignment to consider."],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 747 aeroplanes listed in Boeing Alert Service Bulletin 747‑24A2118 Revision 3 to do a one‑time detailed visual inspection of electrical wire bundles behind the P4 flight engineer’s panel, repair any chafing before further flight, and wrap and reroute the bundles with Teflon sleeving per the service bulletin. Operators pay for inspections and repairs, must follow the ASB or the Boeing AMM where permitted, and meet the deadlines set in the Directive."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive maintaining its original purpose: addressing a specific unsafe condition in Boeing 747 aircraft wiring. The scope remains tightly focused on the flight engineer panel electrical issue as originally identified."},"complexity_factors":["Short, single-purpose directive with clear sequential requirements","Only 3 main requirements with straightforward conditional logic (if chafing found → repair)","References external technical documents (Boeing Service Bulletin) rather than embedding complex technical specifications","Single defined term ('detailed visual inspection') with explicit definition provided","Limited cross-referencing (one FAA AD reference in a note, one alternative compliance path for earlier inspections)","Clear compliance deadlines with simple timing structure"],"plain_english_summary":"Australia’s aviation regulator (CASA) has issued a safety order for Boeing 747s requiring operators to inspect and, if needed, repair electrical wire bundles behind the P4 flight engineer’s panel.  \n\nWires must be protected (Teflon sleeving) and rerouted to stop chafing that could strip insulation, cause instrument failures or electrical fires—affecting airlines and maintenance crews operating 747 series aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-264-flight-engineer-panel-electrical-wire-bundles","history":"/api/acts/ad-b747-264-flight-engineer-panel-electrical-wire-bundles/history","analysis":"/api/acts/ad-b747-264-flight-engineer-panel-electrical-wire-bundles/analysis","conflicts":"/api/acts/ad-b747-264-flight-engineer-panel-electrical-wire-bundles/conflicts","importantCases":"/api/acts/ad-b747-264-flight-engineer-panel-electrical-wire-bundles/important-cases","documents":"/api/acts/ad-b747-264-flight-engineer-panel-electrical-wire-bundles/documents"}}