{"id":"F2006B03312","name":"AD/B767/130 - Nacelle Strut and Wing Structure","slug":"ad-b767-130-nacelle-strut-and-wing-structure","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42749,"registerId":"commonwealth-F2006B03312-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.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.","sortOrder":0},{"sectionNumber":"AD/B767/130 Nacelle Strut and Wing Struc","sectionType":"part","heading":"AD/B767/130 Nacelle Strut and Wing Structure 1/2001","content":"# AD/B767/130 Nacelle Strut and Wing Structure 1/2001\n\nApplicability: Model 767 series aircraft powered by Rolls-Royce RB211 series engines, line numbers 1 through 663.\n\nRequirement: Modify in accordance with the technical requirements of FAA AD 2000-19-09 Amdt 39-11910.\n\nNote: Boeing Service Bulletin 767-54-0082 refers.\n\nCompliance: As specified in the Requirement document.\n\nThis Airworthiness Directive becomes effective on 25 January 2001.\n\nBackground: This Directive requires modification of the nacelle strut and wing structure. This action is necessary to prevent fatigue cracking in primary strut structure and consequent reduced structural integrity of the strut.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 5 December 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 20 December 2000.","sortOrder":1}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1505},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive maintains its original focused scope addressing a specific unsafe condition (fatigue cracking in nacelle strut structure) in defined aircraft configurations. No expansion beyond the original technical safety purpose is evident."},"complexity_factors":["Incorporation by reference to external technical documents (FAA AD 2000-19-09 and Boeing Service Bulletin 767-54-0082) which contain the actual implementation instructions","Narrow applicability criteria combining aircraft model, specific engine type, and manufacturing line number range (1-663)","Technical aerospace terminology requiring specialized engineering knowledge to interpret and execute"],"plain_english_summary":"**What this does:** This is a safety order (Airworthiness Directive) issued by Australia's aviation safety regulator requiring specific structural modifications to certain Boeing 767 aircraft.\n\n**Who it affects:** Owners and operators of Boeing 767 series aircraft powered by Rolls-Royce RB211 engines, specifically those with manufacturing line numbers 1 through 663.\n\n**What must be done:** Operators must modify the **nacelle strut** (the structure that attaches the engine housing to the wing) and the **wing structure** itself. The exact technical steps are contained in two external documents: a US Federal Aviation Administration directive (FAA AD 2000-19-09) and Boeing Service Bulletin 767-54-0082.\n\n**Why it matters:** The modification prevents **fatigue cracking** (progressive metal weakening caused by repeated flight stresses) in the primary strut structure. Without this fix, the structural integrity of the engine mounting system could be compromised, creating a serious safety risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-130-nacelle-strut-and-wing-structure","history":"/api/acts/ad-b767-130-nacelle-strut-and-wing-structure/history","analysis":"/api/acts/ad-b767-130-nacelle-strut-and-wing-structure/analysis","conflicts":"/api/acts/ad-b767-130-nacelle-strut-and-wing-structure/conflicts","importantCases":"/api/acts/ad-b767-130-nacelle-strut-and-wing-structure/important-cases","documents":"/api/acts/ad-b767-130-nacelle-strut-and-wing-structure/documents"}}