{"id":"F2009L03201","name":"AD/BELL 430/14 - Flight Control Bearings","slug":"ad-bell-430-14-flight-control-bearings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":140523,"registerId":"commonwealth-F2009L03201-current","compilationNumber":null,"startDate":"2026-04-03","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 430/14 | Flight Control Bearings | 10/2009 TX |\n| -------------- | ----------------------- | ---------- |\n\n| Applicability: | Bell Helicopter Textron Canada (BHTC) 430 Helicopters Serial number 49001 through 49129.                                                                                                                                                                                                                                                          |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Perform a one-time inspection and, if required, rectification of the affected parts as per Accomplishment Instructions of BHTC Alert Service Bulletin 430-09-42 dated7 April 2009, or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada.Note: Transport Canada AD CF-2009-32 dated 24 July 2009 refers.           |\n| Compliance:    | Within the next 10 flight hours, but not later than 30 calendar days from the effective day of this AD, unless already accomplished.                                                                                                                                                                                                              |\n|                | This Airworthiness Directive becomes effective on 14 August 2009.                                                                                                                                                                                                                                                                                 |\n| Background:    | It has been determined that some bearings may not have been staked as required. Consequently, the functionality of affected parts may be limited. This situation, if not corrected, could lead to loss of control of the helicopter.BHTC Operational Safety Notice OSN GEN-09-38 dated 7 April 2009 provides further information on this subject. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n12 August 2009","sortOrder":0},{"sectionNumber":"AD/BELL 430/14","sectionType":"part","heading":"AD/BELL 430/14","content":"## AD/BELL 430/14","sortOrder":1},{"sectionNumber":"Flight Control Bearings","sectionType":"part","heading":"Flight Control Bearings","content":"## Flight Control Bearings","sortOrder":2},{"sectionNumber":"10/2009 TX","sectionType":"part","heading":"10/2009 TX","content":"## 10/2009 TX","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 manufacturing defect in a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Single, specific applicability (one helicopter model, defined serial number range)","One clear requirement: inspect and rectify per referenced service bulletin","Simple compliance timeframe (10 flight hours or 30 days)","No defined terms section, no cross-references to other legislation beyond the referenced service bulletin and Canadian AD","No conditional logic or nested exceptions — straightforward 'do this by this date' structure","Total length: approximately 200 words of substantive content"],"plain_english_summary":"This AD requires owners/operators of Bell 430 helicopters (S/N 49001–49129) to carry out an urgent one‑time inspection of flight‑control bearings per Bell Alert Service Bulletin 430‑09‑42, and to repair any defects immediately. It addresses potentially unstaked bearings that could fail and lead to loss of control.\n\nCompliance became mandatory on 14 August 2009 and had to be done within 10 flight hours or 30 days of that date."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope aligns with the stated corrective intent: a targeted, one‑time inspection and rectification for the specific serial number range per the manufacturer’s service bulletin and Transport Canada guidance. The AD does not expand applicability beyond the identified helicopters nor create ongoing recurring obligations."},"complexity_factors":["Narrow applicability: limited to Bell 430 serial numbers 49001–49129 (simple population to identify).","Short compliance window: within 10 flight hours or 30 days imposes operational scheduling pressure.","Reliance on external technical document: requires following BHTC Alert Service Bulletin 430‑09‑42 (or later approved revisions).","Potential need for rectification: inspection may lead to repairs/replacement requiring skilled maintenance and parts.","Regulatory approval linkage: later revisions must be approved by the Chief, Continuing Airworthiness, Transport Canada (administrative dependency).","Cross-reference to other instruments: Transport Canada AD CF‑2009‑32 and BHTC Operational Safety Notice OSN GEN‑09‑38 are relevant for context and compliance."],"plain_english_summary":"Requires owners/operators of Bell 430 helicopters (serial numbers 49001–49129) to carry out a one‑time inspection and, if necessary, repair of flight‑control bearings in accordance with BHTC Alert Service Bulletin 430‑09‑42 (or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada). Compliance must occur within 10 flight hours or 30 calendar days of the AD becoming effective (14 Aug 2009).\n\nOperators bear the inspection/repair costs; CASA enforces compliance. The action implements a manufacturer/transport authority‑led corrective step to address bearings that may not have been staked, a condition identified as risking loss of control."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-430-14-flight-control-bearings","history":"/api/acts/ad-bell-430-14-flight-control-bearings/history","analysis":"/api/acts/ad-bell-430-14-flight-control-bearings/analysis","conflicts":"/api/acts/ad-bell-430-14-flight-control-bearings/conflicts","importantCases":"/api/acts/ad-bell-430-14-flight-control-bearings/important-cases","documents":"/api/acts/ad-bell-430-14-flight-control-bearings/documents"}}