{"id":"F2006B03350","name":"AD/B767/175 - Thrust Reverser Wiring","slug":"ad-b767-175-thrust-reverser-wiring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42790,"registerId":"commonwealth-F2006B03350-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \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\nBoeing 767 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B767/175 Thrust Reverser Wiring 9/200","sectionType":"part","heading":"AD/B767/175 Thrust Reverser Wiring 9/2002","content":"# AD/B767/175 Thrust Reverser Wiring 9/2002\n\nApplicability: Model 767-300 series aeroplanes, line numbers 001 through 810 inclusive, equipped with Rolls Royce RB211-524H series engines.\n\nRequirement: 1. Re-route wire bundle W518 (which is located along the leading edge of the right wing from the outboard pressure seal to the wing/strut disconnect), according to Boeing Service Bulletin (SB) 767-78-0085, dated 8 November 2001.\n\n2. Perform the functional test specified in SB 767-78-0085.\n\nNote: FAA AD 2002-14-02 Amdt 39-12802 refers.\n\nCompliance: For Requirement 1 \\- Within 36 months after the effective date of this Directive.\n\nFor Requirement 2 \\- Before the next flight, after completing Requirement 1 re-routing of wire bundle W518.\n\nThis Airworthiness Directive becomes effective on 5 September 2002.\n\nBackground: This Directive requires re-routing wire bundle W518 containing control wiring for the thrust reverser actuation system. This action is necessary to ensure that control\n\nwiring for the thrust reverser actuation system is adequately separated. Inadequately separated wiring could allow a single failure to result in uncommanded deployment of a thrust reverser and consequent reduced controllability of the airplane.\n\n![Signature of Eugene Paul Holzapfel, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 29 July 2002\n\n![](image.001.png)","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive stays within the original safety intent set out in the background: to separate thrust‑reverser control wiring to prevent an uncommanded deployment. It applies only to the specified 767‑300 subfleet with RB211‑524H engines, mandates compliance with Boeing SB 767‑78‑0085, and sets the 36‑month and pre‑flight test timing—there is no expansion beyond that targeted remedy."},"complexity_factors":["Technical but narrowly defined task: re‑routing a single wire bundle (W518) along the right wing leading edge as located in the Requirement.","Mandatory use of a factory service bulletin (Boeing SB 767‑78‑0085) means operators must follow detailed OEM instructions rather than a generic fix.","Compliance timing: a 36‑month window for the wiring modification creates planning and scheduling implications across affected fleet.","Immediate operational constraint: the functional test must be completed before the next flight after re‑routing, affecting return‑to‑service sequencing.","Limited applicability: only Model 767‑300, line numbers 001–810, with RB211‑524H engines — narrows regulatory footprint but requires accurate fleet identification.","Reference to FAA AD 2002‑14‑02 indicates coordination with foreign authority actions and potential harmonisation of compliance records."],"plain_english_summary":"Mechanically, this Airworthiness Directive orders operators of Boeing 767‑300 aeroplanes (line numbers 001–810) fitted with Rolls‑Royce RB211‑524H engines to re‑route wire bundle W518 along the right wing per Boeing Service Bulletin 767‑78‑0085 and then perform a functional test. The re‑routing must be completed within 36 months and the test done before the next flight. CASA issued the directive to ensure separation of thrust‑reverser control wiring so a single wiring failure cannot cause an uncommanded reverser deployment; operators fund and schedule the work."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific unsafe wiring condition. The scope remains precisely limited to the identified safety issue (thrust reverser wiring separation) on the specified aircraft population. No scope creep is evident."},"complexity_factors":["Single, clearly defined applicability (specific aircraft model, line numbers, and engine type)","Only 2 requirements with straightforward sequential compliance","No defined terms section or complex interpretation provisions","Single cross-reference to Boeing Service Bulletin and FAA AD for technical guidance","No nested exceptions, conditional logic, or discretionary powers","Clear, fixed compliance dates rather than conditional triggers"],"plain_english_summary":"CASA Airworthiness Directive requires operators of Boeing 767-300 (s/n 001–810) fitted with Rolls-Royce RB211-524H engines to re-route the W518 electrical wire bundle along the right wing and perform a functional test. It fixes wiring proximity that could cause an uncommanded thrust reverser deployment in flight.\n\nCompliance follows Boeing Service Bulletin 767-78-0085; reroute within three years and test before the next flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-175-thrust-reverser-wiring","history":"/api/acts/ad-b767-175-thrust-reverser-wiring/history","analysis":"/api/acts/ad-b767-175-thrust-reverser-wiring/analysis","conflicts":"/api/acts/ad-b767-175-thrust-reverser-wiring/conflicts","importantCases":"/api/acts/ad-b767-175-thrust-reverser-wiring/important-cases","documents":"/api/acts/ad-b767-175-thrust-reverser-wiring/documents"}}