{"id":"F2006L03414","name":"AD/BELL 430/8 - Lateral Control Tube Assembly","slug":"ad-bell-430-8-lateral-control-tube-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":60868,"registerId":"commonwealth-F2006L03414-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bell Helicopter Textron Canada (BHTC) 43","sectionType":"division","heading":"Bell Helicopter Textron Canada (BHTC) 430 Series Helicopters","content":"### Bell Helicopter Textron Canada (BHTC) 430 Series Helicopters\n\n| AD/BELL 430/8 | Lateral Control Tube Assembly | 11/2006 |\n| ------------- | ----------------------------- | ------- |\n\n| Applicability: | Model 430 helicopters, serial numbers 49001 through 49018, 49020 through 49036, and 49038.                                                                                                                                                                                                                          |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Replace the lateral control tube assembly part number 430-001-018-101, and rework the fairing assembly part number 430-061-822-101, in accordance with Part 2 of BHTC Alert Service Bulletin 430-98-6, or later Transport Canada approved revision.Note: Transport Canada AD CF-98-29 refers.                       |\n| Compliance:    | Unless already accomplished, before 26 November 2006.                                                                                                                                                                                                                                                               |\n|                | This Airworthiness Directive becomes effective on 26 October 2006.                                                                                                                                                                                                                                                  |\n| Background:    | A report was received, that in certain flight conditions the lateral control tube assembly part number 430-001-018-101 may chafe on the inside surface of the forward fairing assembly part number 430-061-822-101. This condition, unless corrected, could result in binding of the lateral control tube assembly. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n13 September 2006","sortOrder":0},{"sectionNumber":"AD/BELL 430/8","sectionType":"part","heading":"AD/BELL 430/8","content":"## AD/BELL 430/8","sortOrder":1},{"sectionNumber":"Lateral Control Tube Assembly","sectionType":"part","heading":"Lateral Control Tube Assembly","content":"## Lateral Control Tube Assembly","sortOrder":2},{"sectionNumber":"11/2006","sectionType":"part","heading":"11/2006","content":"## 11/2006","sortOrder":3}],"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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, targeted Airworthiness Directive addressing a specific mechanical defect in a limited fleet of helicopters. The scope remains precisely focused on the original safety issue identified — chafing of the lateral control tube assembly — with no evidence of scope creep or expansion beyond this specific maintenance requirement."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined part numbers referenced","Single, straightforward compliance requirement with one alternative method (later Transport Canada approved revision)","No nested exceptions or conditional logic","Clear applicability table with specific serial number ranges","Single cross-reference to related Canadian authority (Transport Canada AD CF-98-29)","Plain language background explaining the safety issue"],"plain_english_summary":"This AD mandates replacement of the lateral control tube assembly and modification of a related fairing on specific Bell 430 helicopters (S/N 49001–49018, 49020–49036, 49038) to stop the control tube from chafing and potentially jamming, which could cause loss of lateral control. Compliance per Bell Alert Service Bulletin 430-98-6 is required by 26 November 2006 (effective 26 October 2006)."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD implements a corrective technical mandate for the reported chafing risk for the listed serial numbers, referencing BHTC Alert Service Bulletin 430-98-6 and Transport Canada AD CF-98-29. The text does not expand or narrow the affected population or required corrective action beyond that stated in the instrument."},"complexity_factors":["Narrow applicability limited to specific serial-numbered Model 430 helicopters (Applicability).","Prescriptive technical action: replace a specified part number and rework a specified fairing part (Requirement).","Dependence on an external service document and regulator approval—work must follow Part 2 of BHTC Alert Service Bulletin 430-98-6 or a later Transport Canada–approved revision (Requirement).","Hard compliance deadline with an effective date—limited operator discretion (Compliance).","Safety-driven trigger is a single reported failure mode (chafing leading to binding) rather than a broad performance standard (Background)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Bell 430 helicopters (serial numbers 49001–49018, 49020–49036, 49038) to replace the lateral control tube assembly (P/N 430-001-018-101) and rework the forward fairing (P/N 430-061-822-101) following Part 2 of BHTC Alert Service Bulletin 430-98-6 or a later Transport Canada–approved revision (Requirement; Applicability). Compliance must be done by 26 November 2006; the AD took effect 26 October 2006. The measure responds to reported chafing that could cause the tube to bind (Background). Operators pay for and arrange the work; the regulator enforces the deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-430-8-lateral-control-tube-assembly","history":"/api/acts/ad-bell-430-8-lateral-control-tube-assembly/history","analysis":"/api/acts/ad-bell-430-8-lateral-control-tube-assembly/analysis","conflicts":"/api/acts/ad-bell-430-8-lateral-control-tube-assembly/conflicts","importantCases":"/api/acts/ad-bell-430-8-lateral-control-tube-assembly/important-cases","documents":"/api/acts/ad-bell-430-8-lateral-control-tube-assembly/documents"}}