{"id":"F2006B03320","name":"AD/B767/143 - Main Passenger Door Wire Bundles","slug":"ad-b767-143-main-passenger-door-wire-bundles","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42757,"registerId":"commonwealth-F2006B03320-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)  \nAIRWORTHINESS DIRECTIVE\n\nFor 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\n![](image.001.png)\n\nBoeing 767 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B767/143 Main Passenger Door Wire Bun","sectionType":"part","heading":"AD/B767/143 Main Passenger Door Wire Bundles 8/2001","content":"# AD/B767/143 Main Passenger Door Wire Bundles 8/2001\n\nApplicability: Model 767-300 series aeroplanes, as listed in Boeing Alert Service Bulletin (ASB) 767-33A0085, Revision 2, dated 7 December 2000.\n\nRequirement: 1. Carry out one-time general visual inspection to detect chafing and determine adequate clearance of the wire bundles above the F4/G2 galley, in accordance with Figure 1 or Figure 3, as applicable, of the Accomplishment Instructions of ASB 767-33A0085, Revision 2.\n\nNote 1: For the purposes of this Directive, a general visual inspection is defined as: \"A visual examination of an interior or exterior area, installation, or assembly to find obvious damage, failure, or irregularity. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or drop-light and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.\"\n\n2. If chafing and/or inadequate clearance is found during the Requirement 1 inspection, repair or replace damaged wires in the wire bundles; install a bracket assembly on the wire bundle support bracket; install nut spacer plates; and re-route the wire bundles away from the ceiling support bracket, as applicable, as specified by and in accordance with Figure 2 or Figure 3, as applicable, of the Accomplishment Instructions of the ASB.\n\nAccomplishment of the one-time inspection and corrective actions in accordance with either Boeing ASB 767-33A0085, dated 11 May 2000 or Revision 1, dated 31 August 2000, before the effective date of this Directive, is considered acceptable for compliance with Requirements 1 and 2 of this Directive.\n\nNote 2: FAA AD 2001-12-03 Amdt 39-12258 refers.\n\nCompliance: For Requirement 1 - Within 6 months after the effective date of this Directive. For Requirement 2 - Before further flight after the Requirement 1 inspection. This Airworthiness Directive becomes effective on 9 August 2001.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD stays within its original, narrowly defined safety purpose: to detect and correct chafing or inadequate clearance of specific wire bundles on listed 767-300 aeroplanes. It does not expand the obligations beyond a one-time inspection and necessary corrective actions tied to that specific unsafe condition. The AD permits prior accomplishment under earlier ASB revisions but does not broaden applicability, introduce recurring inspections, or add unrelated requirements, so its scope has not materially changed from its stated purpose."},"complexity_factors":["Narrow applicability: single aircraft type group (Model 767-300 series) listed via a single Boeing ASB","Two substantive requirements (one-time inspection; corrective action if defects found)","One defined inspection term (\"general visual inspection\") with a clear Note 1 definition","Cross-reference to an external technical document (Boeing ASB 767-33A0085, Revision 2) and to FAA AD 2001-12-03","Simple timing conditions (inspect within 6 months; repairs before further flight)","Acceptance clause for prior compliance under earlier ASB versions (minor conditional complexity)"],"plain_english_summary":"**What this instrument does (mechanically)\n\n- **Applies to:** Boeing 767-300 series aeroplanes listed in Boeing Alert Service Bulletin (ASB) 767-33A0085, Revision 2 (see \"Applicability\").\n- **Required action (Requirement 1):** Perform a one-time general visual inspection to check for chafing and to confirm adequate clearance of the main passenger door wire bundles above the F4/G2 galley, following the figures and instructions in Boeing ASB 767-33A0085, Revision 2. (A \"general visual inspection\" is defined in Note 1 as a routine visual check under normal lighting; access panels may be opened and simple platforms used.)\n- **Follow-up action (Requirement 2):** If the inspection finds chafing or inadequate clearance, repair or replace damaged wires; install a bracket assembly on the wire-bundle support bracket; install nut spacer plates; and re-route the wire bundles away from the ceiling support bracket, as specified in the ASB figures cited.\n- **Timing (Compliance):** Do the inspection within 6 months after the AD's effective date. If corrective work is required, complete it before the aeroplane's next flight (\"before further flight\").\n- **Acceptable earlier compliance:** If an operator already completed the inspection and, if needed, repairs in accordance with the original ASB or Revision 1 before this AD's effective date, that work satisfies this AD (see paragraph permitting prior accomplishment).\n- **Cross-references:** The AD relies on Boeing ASB 767-33A0085 (the technical procedure) and notes an equivalent FAA AD (FAA AD 2001-12-03).\n\nPurpose stated by the instrument\n\n- The AD is issued to correct an unsafe condition involving chafing or inadequate clearance of the main passenger door wire bundles above the F4/G2 galley. The AD requires the inspection and corrective work the CASA delegate considers necessary to address that condition (see Requirement 1 and Requirement 2).\n\nPractical effects, costs and who decides\n\n- Who pays: the aircraft operator (airline or lessor) pays for labour, parts (brackets, spacer plates, wire repair materials), and any aircraft time out of service.\n- Who decides and enforces: CASA (the delegate issuing the AD) prescribes the requirement and effective date. Compliance is executed by the operator and performed by qualified maintenance personnel or contracted maintenance organisations, following the Boeing ASB.\n- Behaviour change required: operators must schedule and perform a one-time inspection within the 6-month window; if problems are found they must complete corrective work before returning the aircraft to service.\n\nTrade-offs, implementation risks and market effects\n\n- Direct costs are limited and one-time: inspection labour and, where necessary, repair parts and labour. If multiple aircraft require repair, aggregate costs for an operator can be material but are confined to maintenance budgets.\n- Operational impact: aircraft found to need repairs will be grounded until corrective action is complete (Requirement 2 mandates repair before further flight), producing short-term opportunity costs (flight cancellations or rearrangement) and scheduling pressure on maintenance facilities.\n- Competitive / market effects: the AD does not prescribe a proprietary supplier for repairs; it requires actions in accordance with Boeing's ASB, so independent maintenance providers who can follow the ASB can compete to perform the work. However, dependency on Boeing's technical drawings and specified parts can concentrate demand for certain parts or assemblies.\n- Compliance and implementation risk: accurate detection of chafing depends on competent maintenance inspection. Misinterpretation of the ASB figures or incorrect repairs could leave the unsafe condition partially mitigated; regulatory oversight rests on CASA review and operator records.\n- Substitution and scope control: the AD accepts prior compliance done under the same ASB revisions, but otherwise requires adherence to the ASB figures cited. Any alternative method of compliance would need regulatory approval (not provided in the text).\n\nNet summary\n\nThis AD mandates a one-time inspection and, if necessary, repairs and rerouting of the main passenger door wire bundles on certain Boeing 767-300 aeroplanes to remove chafing risk and ensure adequate clearance above a galley area. It is time-limited (inspect within 6 months) and requires immediate corrective action (before further flight) where defects are found. The principal burdens fall on aircraft operators and their maintenance providers as a one-off safety compliance cost (see \"Requirement 1\", \"Requirement 2\", \"Compliance\", and Notes 1–2)."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with a narrow, specific scope addressing a single identified unsafe condition in a particular aircraft model. The scope remains tightly focused on the original safety issue (wire bundle chafing) without expansion into broader operational or maintenance requirements."},"complexity_factors":["Short, single-purpose directive focused on one specific aircraft model and one specific maintenance issue","Only 2 main requirements with clear sequential logic (inspect first, repair if needed)","Heavy reliance on external technical documents (Boeing Alert Service Bulletin 767-33A0085) for actual implementation details - the AD itself does not contain the technical specifications","One defined term ('general visual inspection') provided in Note 1","Simple compliance timeline structure (6 months for inspection, before next flight for repairs)","Single cross-reference to FAA AD 2001-12-03 in Note 2","No nested exceptions or conditional logic beyond the basic 'if found, then repair' structure"],"plain_english_summary":"This safety order requires operators of certain Boeing 767-300 aircraft to inspect wiring above the F4/G2 galley near the main passenger door and correct any chafing or clearance issues that could cause electrical faults.  \n\nFixes must be completed before further flight if damage is found. The rule prevents wiring-related smoke, fire, or electrical failure and accepts prior inspections done per earlier Boeing instructions as compliant."},"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-b767-143-main-passenger-door-wire-bundles","history":"/api/acts/ad-b767-143-main-passenger-door-wire-bundles/history","analysis":"/api/acts/ad-b767-143-main-passenger-door-wire-bundles/analysis","conflicts":"/api/acts/ad-b767-143-main-passenger-door-wire-bundles/conflicts","importantCases":"/api/acts/ad-b767-143-main-passenger-door-wire-bundles/important-cases","documents":"/api/acts/ad-b767-143-main-passenger-door-wire-bundles/documents"}}