{"id":"F2009L03051","name":"AD/DAUPHIN/20 - Main Rotor Servo Inspection - CANCELLED","slug":"ad-dauphin-20-main-rotor-servo-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80647,"registerId":"commonwealth-F2009L03051-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter SA 360 and SA 365 (Dauphin) S","sectionType":"division","heading":"Eurocopter SA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/20 | Main Rotor Servo 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 an inspection of the main rotor servo in accordance with SB No. 05.11 after the last flight of the day. This inspection is now specified in MET section 5.21.603, page 4. Use of an AD to mandate this inspection 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/20","sectionType":"part","heading":"AD/DAUPHIN/20","content":"## AD/DAUPHIN/20","sortOrder":1},{"sectionNumber":"Main Rotor Servo Inspection","sectionType":"part","heading":"Main Rotor Servo Inspection","content":"## Main Rotor Servo 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":1381},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument is being cancelled entirely rather than expanded. The original regulatory burden (mandatory daily servo inspections) is being eliminated because the requirement has been absorbed into standard maintenance documentation."},"complexity_factors":["Single operative action (cancellation of previous instrument)","No interpretation section or defined terms","No conditional provisions, exceptions, or procedural steps","Document consists solely of background explanation and revocation clause"],"plain_english_summary":"**What this does:** This instrument cancels a previous safety directive (Airworthiness Directive AD/DAUPHIN/20) that required daily inspections of the main rotor servo on specific Eurocopter Dauphin helicopters.\n\n**Who it affects:** Owners and operators of Eurocopter SA 360 and SA 365 (Dauphin) series helicopters registered in Australia.\n\n**Why it matters:** The safety inspection itself hasn't been abolished—it's just been moved into the standard aircraft maintenance handbook (specifically MET section 5.21.603). Because the check is now part of routine maintenance requirements, having a separate mandatory directive was unnecessary red tape. This cancellation streamlines compliance by removing the duplication."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection-cancelled","history":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection-cancelled/history","analysis":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection-cancelled/analysis","conflicts":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection-cancelled/important-cases","documents":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection-cancelled/documents"}}