{"id":"F2009L03853","name":"AD/BELL 205/19 Amdt 1 - Transmission Support Case - Inspection - CANCELLED","slug":"ad-bell-205-19-amdt-1-transmission-support-case-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":81108,"registerId":"commonwealth-F2009L03853-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bell Helicopter Textron 205 Series Helic","sectionType":"division","heading":"Bell Helicopter Textron 205 Series Helicopters","content":"### Bell Helicopter Textron 205 Series Helicopters\n\n| AD/BELL 205/19 Amdt 1 | Transmission Support Case - Inspection | 12/2009 |\n| --------------------- | -------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                             |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 19 November 2009.                                                                                                                                                                              |\n| Background:  | This unique Australian AD specified a visual inspection at intervals not exceeding 100 hours time in service after July 1974. The AD was not based on a manufacturer’s service document. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n30 September 2009","sortOrder":0},{"sectionNumber":"AD/BELL 205/19 Amdt 1","sectionType":"part","heading":"AD/BELL 205/19 Amdt 1","content":"## AD/BELL 205/19 Amdt 1","sortOrder":1},{"sectionNumber":"Transmission Support Case - Inspection","sectionType":"part","heading":"Transmission Support Case - Inspection","content":"## Transmission Support Case - Inspection","sortOrder":2},{"sectionNumber":"12/2009","sectionType":"part","heading":"12/2009","content":"## 12/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2544},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly the limited function indicated by its title and context—cancelling a previous airworthiness directive. There is no expansion of scope beyond the termination of the specific inspection requirement."},"complexity_factors":["Single operative provision cancelling a previous instrument","No defined terms, interpretation sections, or statutory cross-references","No conditional logic, exceptions, or operative subsections","Total substantive text of fewer than 75 words"],"plain_english_summary":"This document cancels a previous aviation safety rule that required owners of **Bell 205 series helicopters** to perform regular visual inspections of the **transmission support case** (the structural component that holds the main rotor transmission in place).\n\n**What it does:**\n*   **Removes a maintenance requirement:** Operators no longer need to conduct a specific visual inspection of the transmission support case every 100 hours of flight time.\n*   **Ends a long-standing rule:** The inspection requirement had been in place since 1974 and was unique to Australian operations (not based on manufacturer guidelines).\n\n**Who it affects:**\n*   Owners, operators, and maintenance engineers responsible for Bell Helicopter Textron 205 series aircraft.\n\n**Why it matters:**\n*   This reduces maintenance costs and downtime for these helicopter operators, as the specific 100-hour inspection is no longer mandatory for keeping the aircraft airworthy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-205-19-amdt-1-transmission-support-case-inspection-cancelled","history":"/api/acts/ad-bell-205-19-amdt-1-transmission-support-case-inspection-cancelled/history","analysis":"/api/acts/ad-bell-205-19-amdt-1-transmission-support-case-inspection-cancelled/analysis","conflicts":"/api/acts/ad-bell-205-19-amdt-1-transmission-support-case-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-bell-205-19-amdt-1-transmission-support-case-inspection-cancelled/important-cases","documents":"/api/acts/ad-bell-205-19-amdt-1-transmission-support-case-inspection-cancelled/documents"}}