{"id":"F2009L02849","name":"AD/AS 355/32 - Servo Control Securing Screws - CANCELLED","slug":"ad-as-355-32-servo-control-securing-screws-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80163,"registerId":"commonwealth-F2009L02849-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter AS 355 (Twin Ecureuil) Series","sectionType":"division","heading":"Eurocopter AS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 355/32 | Servo Control Securing Screws | 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 and torque checking of screws within 25 hours CTIS after May 1988. The AD was not based on a manufacturer’s service document. 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 355/32","sectionType":"part","heading":"AD/AS 355/32","content":"## AD/AS 355/32","sortOrder":1},{"sectionNumber":"Servo Control Securing Screws","sectionType":"part","heading":"Servo Control Securing Screws","content":"## Servo Control Securing Screws","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":1920},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a straightforward cancellation instrument that terminates a previous airworthiness directive without expanding, narrowing, or otherwise altering the regulatory scope. It simply removes an existing obligation rather than creating new requirements or extending coverage to new aircraft types."},"complexity_factors":["Single operative provision (cancellation of previous directive)","No defined terms requiring interpretation","No cross-references to other legislative provisions","No conditional logic or exceptions","Extremely short substantive content (under 100 words)"],"plain_english_summary":"**What this is:** This document officially cancels a previous aviation safety rule affecting Eurocopter AS 355 (Twin Ecureuil) helicopters.\n\n**What it did:** The cancelled rule required inspection and tightening of screws in the servo control system (the mechanism that helps control the helicopter) within 25 hours of flight time. This was a unique Australian requirement first imposed in 1988, not based on the manufacturer's own guidelines.\n\n**What changed:** The inspection requirement is no longer mandatory. The Civil Aviation Safety Authority (CASA) has determined this specific safety check is unnecessary and has revoked it.\n\n**Who it affects:** Owners and operators of Eurocopter AS 355 helicopter series.\n\n**Why it matters:** If you operate one of these helicopters, you no longer need to perform this particular screw inspection that was previously required only under Australian regulations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-as-355-32-servo-control-securing-screws-cancelled","history":"/api/acts/ad-as-355-32-servo-control-securing-screws-cancelled/history","analysis":"/api/acts/ad-as-355-32-servo-control-securing-screws-cancelled/analysis","conflicts":"/api/acts/ad-as-355-32-servo-control-securing-screws-cancelled/conflicts","importantCases":"/api/acts/ad-as-355-32-servo-control-securing-screws-cancelled/important-cases","documents":"/api/acts/ad-as-355-32-servo-control-securing-screws-cancelled/documents"}}