{"id":"F2009L03033","name":"AD/L.40/4 - Elevator and Rudder Control System - Modification - CANCELLED","slug":"ad-l-40-4-elevator-and-rudder-control-system-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80600,"registerId":"commonwealth-F2009L03033-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Meta Sokol L.40 Series Aeroplanes","sectionType":"division","heading":"Meta Sokol L.40 Series Aeroplanes","content":"### Meta Sokol L.40 Series Aeroplanes\n\n| AD/L.40/4 | Elevator and RudderControl System - Modification | 9/2009 |\n| --------- | ------------------------------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                    |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 27 August 2009.                                                                                                                                                                                                                                       |\n| Background:  | This unique Australian AD specified once-only replacement of wires in elevator and rudder control systems with approved flexible cables to an approved scheme before September 1971. 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\n30 June 2009","sortOrder":0},{"sectionNumber":"AD/L.40/4","sectionType":"part","heading":"AD/L.40/4","content":"## AD/L.40/4","sortOrder":1},{"sectionNumber":"Elevator and RudderControl System - Modi","sectionType":"part","heading":"Elevator and RudderControl System - Modification","content":"## Elevator and Rudder  \nControl System - Modification","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":1261},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument cancels the previous AD entirely rather than expanding its scope. It terminates the regulatory requirement rather than altering the scope."},"complexity_factors":["Single operative provision (cancellation of previous directive)","No conditional logic or cross-references to other legislation","No defined terms requiring interpretation","Brief historical background provided for context only"],"plain_english_summary":"**What this is:** This document cancels a previous safety rule (called an Airworthiness Directive or AD) that applied to a specific type of aircraft—the Meta Sokol L.40 series.\n\n**What it used to require:** The original rule required aircraft owners to replace wires in the elevator and rudder control systems with approved flexible cables. This was a one-time modification that had to be completed before September 1971.\n\n**Why it's cancelled:** The Civil Aviation Safety Authority (CASA) has determined this safety requirement is no longer necessary. The directive is formally cancelled effective 27 August 2009.\n\n**Who is affected:** Owners and operators of Meta Sokol L.40 series aeroplanes, though given the 1971 deadline and the 2009 cancellation, this primarily affects historical compliance records."}},"importantCases":[],"_links":{"self":"/api/acts/ad-l-40-4-elevator-and-rudder-control-system-modification-cancelled","history":"/api/acts/ad-l-40-4-elevator-and-rudder-control-system-modification-cancelled/history","analysis":"/api/acts/ad-l-40-4-elevator-and-rudder-control-system-modification-cancelled/analysis","conflicts":"/api/acts/ad-l-40-4-elevator-and-rudder-control-system-modification-cancelled/conflicts","importantCases":"/api/acts/ad-l-40-4-elevator-and-rudder-control-system-modification-cancelled/important-cases","documents":"/api/acts/ad-l-40-4-elevator-and-rudder-control-system-modification-cancelled/documents"}}