{"id":"F2006B08731","name":"AD/DAUPHIN/20 - Main Rotor Servo Inspection","slug":"ad-dauphin-20-main-rotor-servo-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51962,"registerId":"commonwealth-F2006B08731-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DAUPHIN/20 - Main Rotor Servo Inspection","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nEurocopter SA 360 and SA 365 (Dauphin) Series Helicopters\n\nAD/DAUPHIN/20 Main Rotor Servo Inspection 12/87\n\nTX\n\nApplicability: All model SA 360, SA 361, SA 365C, C1, C2 and C3 helicopters. Requirement: Action in accordance with Aerospatiale SA 360 and SA 365 S.B. No 05.11.\n\nCompliance: 1. For Para 1C(1) of Requirement document. Unless already accomplished at receipt of AD and at each “after last flight” inspection each day. Inspection intervals not to exceed 10 flight hours.\n\n2. For Para 1C(2) of Requirement document. Prior to completion of 400 flying hours from 31 August 1987.\n\nNote: Inspect new and overhauled servos in accordance with 1 above.\n\nBackground: Longitudinal cracks starting from between two notches used to lock the servo rod end nut have been found in the main control flared end.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":3046},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This airworthiness directive maintains its original narrow scope as issued in 1987, targeting only the specific cracking defect in main rotor servos for the listed Dauphin helicopter models."},"complexity_factors":["References external technical document (Aerospatiale Service Bulletin 05.11) without reproducing its detailed inspection procedures","Contains specialized aviation terminology requiring technical maintenance knowledge","Dual compliance pathways with different measurement bases (daily/10 flight hours versus accumulated hours from a fixed date)","Specific model applicability list requiring careful aircraft registration verification"],"plain_english_summary":"This directive requires repeated safety inspections of main rotor servos on certain Eurocopter/Aerospatiale Dauphin helicopters to detect longitudinal cracks in servo rod flared ends that could cause loss of flight control. It affects owners/operators of listed Dauphin models and requires daily or frequent checks and a one-time detailed inspection of installed and replacement servos, using the procedures in Aerospatiale Service Bulletin No. 05.11 to ensure continued airworthiness."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection","history":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection/history","analysis":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection/analysis","conflicts":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection/conflicts","importantCases":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection/important-cases","documents":"/api/acts/ad-dauphin-20-main-rotor-servo-inspection/documents"}}