{"id":"F2009L02858","name":"AD/AS 355/14 Amdt 1 - Combiner Gearbox R.H. and L.H. - CANCELLED","slug":"ad-as-355-14-amdt-1-combiner-gearbox-r-h-and-l-h-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80192,"registerId":"commonwealth-F2009L02858-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter AS 355 (Twin Ecureuil) Series","sectionType":"division","heading":"Eurocopter AS 355 (Twin Ecureuil) Series Helicopters","content":"### Eurocopter AS 355 (Twin Ecureuil) Series Helicopters\n\n| AD/AS 355/14 Amdt 1 | Combiner Gearbox R.H. and L.H. | 8/2009 |\n| ------------------- | ------------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                           |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 30 July 2009.                                                                                                                                                                |\n| Background:  | This unique Australian AD specified inspection in accordance with Aerospatiale SB No. 05-09 Rev 2 at intervals not exceeding 300 hours time in service until modified. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n18 June 2009","sortOrder":0},{"sectionNumber":"AD/AS 355/14 Amdt 1","sectionType":"part","heading":"AD/AS 355/14 Amdt 1","content":"## AD/AS 355/14 Amdt 1","sortOrder":1},{"sectionNumber":"Combiner Gearbox R.H. and L.H.","sectionType":"part","heading":"Combiner Gearbox R.H. and L.H.","content":"## Combiner Gearbox R.H. and L.H.","sortOrder":2},{"sectionNumber":"8/2009","sectionType":"part","heading":"8/2009","content":"## 8/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1422},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs exactly its stated function: cancelling Airworthiness Directive AD/AS 355/14. The scope is limited to revocation and has not expanded beyond this single purpose."},"complexity_factors":["Single operative provision (cancellation)","No defined terms section","No conditional logic, exceptions, or cross-references","Document consists primarily of background explanation rather than operative text"],"plain_english_summary":"This document **cancels** a previous safety rule (Airworthiness Directive) that required regular inspections of the combiner gearboxes on Eurocopter AS 355 helicopters.\n\n**What it does:**\n- Removes the requirement for helicopter operators to inspect the right-hand and left-hand combiner gearboxes every 300 flight hours\n- Stops mandatory compliance with Aerospatiale Service Bulletin No. 05-09 Rev 2\n\n**Who it affects:**\n- Owners and operators of Eurocopter AS 355 (Twin Ecureuil) series helicopters in Australia\n\n**Why it matters:**\n- This maintenance requirement is no longer necessary, likely because design improvements or alternative safety measures have made the repeated inspections redundant\n- Saves operators time and money by removing an ongoing inspection burden that was unique to Australian-registered aircraft"}},"importantCases":[],"_links":{"self":"/api/acts/ad-as-355-14-amdt-1-combiner-gearbox-r-h-and-l-h-cancelled","history":"/api/acts/ad-as-355-14-amdt-1-combiner-gearbox-r-h-and-l-h-cancelled/history","analysis":"/api/acts/ad-as-355-14-amdt-1-combiner-gearbox-r-h-and-l-h-cancelled/analysis","conflicts":"/api/acts/ad-as-355-14-amdt-1-combiner-gearbox-r-h-and-l-h-cancelled/conflicts","importantCases":"/api/acts/ad-as-355-14-amdt-1-combiner-gearbox-r-h-and-l-h-cancelled/important-cases","documents":"/api/acts/ad-as-355-14-amdt-1-combiner-gearbox-r-h-and-l-h-cancelled/documents"}}