{"id":"F2009L03719","name":"AD/BELL 407/32 Amdt 1 - Cyclic Control Lever Assembly Installation","slug":"ad-bell-407-32-amdt-1-cyclic-control-lever-assembly-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":141582,"registerId":"commonwealth-F2009L03719-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bell Helicopter Textron Canada (BHTC) 40","sectionType":"division","heading":"Bell Helicopter Textron Canada (BHTC) 407 Series Helicopters","content":"### Bell Helicopter Textron Canada (BHTC) 407 Series Helicopters\n\n| AD/BELL 407/32 Amdt 1 | Cyclic Control Lever Assembly Installation | 12/2009 DM |\n| --------------------- | ------------------------------------------ | ---------- |\n\n| Applicability: | All Model 407 helicopters.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | For helicopters with less than 50 flight hours in service or with a cyclic lever assembly installed within the last 50 flight hours:Perform a one time inspection and if required, rectification, of the cyclic lever assembly installation, in accordance with accomplishment instructions provided in Bell Alert Service bulletin 407-09-85 dated 10 March 2009, or later Transport Canada approved revision.Note: Transport Canada AD CF-2009-10R1 refers.                                                    |\n| Compliance:    | Within 10 flight hours after 30 September 2009, but no later than 30 calendar days after the effective date of this Directive; unless already accomplished.                                                                                                                                                                                                                                                                                                                                                      |\n|                | This Amendment becomes effective on 30 September 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                           |\n| Background:    | An incorrectly installed bearing Part Number 206-301-051-101, in the co-pilot cyclic control lever assembly has been discovered during manufacturing. It is possible, that an incorrectly installed bearing could be found in any aircraft with a recently installed cyclic control lever assembly.Amendment 1 is issued to reflect the requirements of the latest Transport Canada AD, which, while retaining the requirements of the original AD issue, requires possible extra work on Model 206 helicopters. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n28 September 2009","sortOrder":0},{"sectionNumber":"AD/BELL 407/32 Amdt 1","sectionType":"part","heading":"AD/BELL 407/32 Amdt 1","content":"## AD/BELL 407/32 Amdt 1","sortOrder":1},{"sectionNumber":"Cyclic Control Lever Assembly Installati","sectionType":"part","heading":"Cyclic Control Lever Assembly Installation","content":"## Cyclic Control Lever Assembly Installation","sortOrder":2},{"sectionNumber":"12/2009 DM","sectionType":"part","heading":"12/2009 DM","content":"## 12/2009 DM","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 amendment does not expand the scope beyond the original directive's purpose. The background note explains that Amendment 1 was issued to align with updated Canadian requirements that also cover Model 206 helicopters, but the actual requirements for Australian Bell 407 operators remain identical to the original AD. The scope remains tightly focused on the cyclic control lever bearing inspection for the 407 series only."},"complexity_factors":["Very short document (approximately 250 words of substantive content)","Only 2 defined applicability conditions (flight hours threshold and recent installation)","Single compliance pathway with straightforward time limit (10 flight hours or 30 days)","No nested exceptions or conditional logic — only one exemption (\"unless already accomplished\")","Minimal cross-referencing (only to Bell service bulletin and Transport Canada AD for background)","Clear, directive-style language typical of safety-critical aviation instruments"],"plain_english_summary":"This CASA Airworthiness Directive mandates a one-time inspection of the co‑pilot cyclic control lever bearing on Bell Model 407 helicopters to check for incorrect installation that could cause loss of control. It applies to owners/operators of all Bell 407s with under 50 flight hours or where the cyclic lever was fitted within the last 50 hours; any defects must be rectified per Bell’s service bulletin. The inspection must be done within 10 flight hours after 30 Sep 2009 or within 30 days of the AD taking effect."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The Amendment retains the Directive's applicability to Model 407 helicopters but explicitly aligns it with Transport Canada's AD CF‑2009‑10R1, which \"requires possible extra work on Model 206 helicopters.\" That alignment broadens the practical supervisory context (and may implicate additional helicopter types under the related Transport Canada AD), even though the Directive text itself lists only Model 407 for mandatory compliance."},"complexity_factors":["Narrow technical scope: applies to cyclic lever assemblies on Bell 407 helicopters with <50 flight hours or recently installed assemblies","Short compliance window: within 10 flight hours after the effective date or within 30 calendar days","Dependency on external documents: requires following Bell Alert Service Bulletin 407‑09‑85 or later Transport Canada–approved revision","Conditional work: inspection may trigger corrective maintenance, creating variable cost and downtime for operators","Cross-reference note: Amendment cites Transport Canada AD CF‑2009‑10R1 and mentions possible extra work on Model 206, introducing potential ambiguity about affected models","No repair procedure included in directive text: implementers must consult the service bulletin for technical steps and parts"],"plain_english_summary":"This Directive requires owners/operators of Bell 407 helicopters whose cyclic control lever assembly has less than 50 flight hours (or was installed within the last 50 hours) to carry out a one‑time inspection and any needed corrective work, following Bell Alert Service Bulletin 407‑09‑85 (or a later Transport Canada–approved revision). Compliance must occur within 10 flight hours after 30 September 2009 or no later than 30 calendar days. The measure addresses a possibly incorrectly installed bearing (P/N 206‑301‑051‑101) discovered in co‑pilot cyclic assemblies; operators pay inspection and repair costs and must follow the referenced service instructions."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-407-32-amdt-1-cyclic-control-lever-assembly-installation","history":"/api/acts/ad-bell-407-32-amdt-1-cyclic-control-lever-assembly-installation/history","analysis":"/api/acts/ad-bell-407-32-amdt-1-cyclic-control-lever-assembly-installation/analysis","conflicts":"/api/acts/ad-bell-407-32-amdt-1-cyclic-control-lever-assembly-installation/conflicts","importantCases":"/api/acts/ad-bell-407-32-amdt-1-cyclic-control-lever-assembly-installation/important-cases","documents":"/api/acts/ad-bell-407-32-amdt-1-cyclic-control-lever-assembly-installation/documents"}}