{"id":"F2006B03291","name":"AD/B767/11 - Main Landing Gear Drag Brace Upper Spindle","slug":"ad-b767-11-main-landing-gear-drag-brace-upper-spindle","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42728,"registerId":"commonwealth-F2006B03291-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B767/11 - Main Landing Gear Drag Brace Upper Spindle","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Boeing 767 Series Aeroplanes\n\n \n\nAD/B767/11 Main Landing Gear Drag Brace Upper Spindle 6/86\n\nApplicability:  All models with line positions 2 to 34, 36 to 62, and 64. Requirement:  Action in accordance with Boeing SB No. 767-32-0044. Compliance:  Before exceeding 9,000 landings.\n\nBackground: After a fracture occurred on the fatigue test, it was discovered that the root radius on the spindle threads was undersize. The manufacturer suspects that this problem may occur on all spindles with S/Nos. from HM0001 to HM0133. This AD has been raised because SB 767-32-0044 has been identified by the 767 Maintenance Planning Document as having flight safety implications.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1472},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific fatigue defect identified in testing. It has not expanded beyond its original purpose of mandating inspection/replacement of the identified defective part."},"complexity_factors":["Technical aviation terminology requiring engineering knowledge (drag brace, spindle threads, root radius)","External cross-reference to Boeing Service Bulletin 767-32-0044 for actual implementation details","Specific applicability criteria based on manufacturer line positions and spindle serial number ranges"],"plain_english_summary":"A safety order requires operators of certain Boeing 767s with affected drag-brace upper spindles to inspect or replace that part per Boeing Service Bulletin 767-32-0044 before the aircraft reaches 9,000 landings. The spindles have a manufacturing defect that can cause fatigue cracking and a possible landing-gear collapse, creating a serious crash risk for affected aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-11-main-landing-gear-drag-brace-upper-spindle","history":"/api/acts/ad-b767-11-main-landing-gear-drag-brace-upper-spindle/history","analysis":"/api/acts/ad-b767-11-main-landing-gear-drag-brace-upper-spindle/analysis","conflicts":"/api/acts/ad-b767-11-main-landing-gear-drag-brace-upper-spindle/conflicts","importantCases":"/api/acts/ad-b767-11-main-landing-gear-drag-brace-upper-spindle/important-cases","documents":"/api/acts/ad-b767-11-main-landing-gear-drag-brace-upper-spindle/documents"}}