{"id":"F2009L03058","name":"AD/DAUPHIN/1 - Tail Rotor and Tail Gearbox Support - Inspection - CANCELLED","slug":"ad-dauphin-1-tail-rotor-and-tail-gearbox-support-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80654,"registerId":"commonwealth-F2009L03058-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter SA 360 and SA 365 (Dauphin) S","sectionType":"division","heading":"Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters","content":"### Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters\n\n| AD/DAUPHIN/1 | Tail Rotor and TailGearbox Support - Inspection | 9/2009 |\n| ------------ | ----------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                     |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 27 August 2009.                                                                                                                                                                                                                                                        |\n| Background:  | This unique Australian AD specified inspection of the tail rotor and tail gearbox support in accordance with SB No. 05.02 at intervals of 20 and 50 hours. This inspection is now specified in PRE section 05.44.00, page 4. Use of an AD to mandate these inspections is no longer warranted. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n15 July 2009","sortOrder":0},{"sectionNumber":"AD/DAUPHIN/1","sectionType":"part","heading":"AD/DAUPHIN/1","content":"## AD/DAUPHIN/1","sortOrder":1},{"sectionNumber":"Tail Rotor and TailGearbox Support - Ins","sectionType":"part","heading":"Tail Rotor and TailGearbox Support - Inspection","content":"## Tail Rotor and Tail  \nGearbox Support - Inspection","sortOrder":2},{"sectionNumber":"9/2009","sectionType":"part","heading":"9/2009","content":"## 9/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1410},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The document simply cancels a previous directive without expanding or altering the regulatory scope. The underlying safety requirement continues in a different regulatory form (maintenance manual rather than standalone directive)."},"complexity_factors":["Single operative provision (cancellation)","No conditional logic or exceptions","No defined terms","Minimal cross-referencing (only to internal manual section)","Extremely short (under 200 words)"],"plain_english_summary":"**What this is:** This document cancels a previous safety rule (Airworthiness Directive AD/DAUPHIN/1) that required regular inspections of the tail rotor and tail gearbox support on Eurocopter SA 360 and SA 365 Dauphin helicopters.\n\n**Why it matters:** Owners and operators of these helicopters no longer need to comply with this specific directive. The inspection requirement hasn't disappeared—it's just been moved into the standard maintenance manual (Periodic Review and Examination section 05.44.00). This simplifies compliance by removing a redundant standalone rule.\n\n**Who it affects:** Operators and maintenance crews working on Eurocopter Dauphin series helicopters registered in Australia."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-1-tail-rotor-and-tail-gearbox-support-inspection-cancelled","history":"/api/acts/ad-dauphin-1-tail-rotor-and-tail-gearbox-support-inspection-cancelled/history","analysis":"/api/acts/ad-dauphin-1-tail-rotor-and-tail-gearbox-support-inspection-cancelled/analysis","conflicts":"/api/acts/ad-dauphin-1-tail-rotor-and-tail-gearbox-support-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-dauphin-1-tail-rotor-and-tail-gearbox-support-inspection-cancelled/important-cases","documents":"/api/acts/ad-dauphin-1-tail-rotor-and-tail-gearbox-support-inspection-cancelled/documents"}}