{"id":"F2009L00879","name":"AD/PA-42/6 - Aileron Trim Tab Control Tube and Rudder Trim Cable Retainer Hardware - Inspection and Replacement - CANCELLED","slug":"ad-pa-42-6-aileron-trim-tab-control-tube-and-rudder-trim-cable-retainer-hardware-inspection-and-repl","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78156,"registerId":"commonwealth-F2009L00879-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-42 (Cheyenne III) Series Aeropl","sectionType":"division","heading":"Piper PA-42 (Cheyenne III) Series Aeroplanes","content":"### Piper PA-42 (Cheyenne III) Series Aeroplanes\n\n| AD/PA-42/6 | Aileron Trim Tab Control Tube and Rudder Trim Cable Retainer Hardware - Inspectionand Replacement | 4/2009 |\n| ---------- | ------------------------------------------------------------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                 |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 9 April 2009.                                                                                                                                                                      |\n| Background:  | This unique Australian AD specified inspection and replacement of trim system components in accordance with Piper SB No. 778 within 10 hours time in service after May 1984. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n25 February 2009","sortOrder":0},{"sectionNumber":"AD/PA-42/6","sectionType":"part","heading":"AD/PA-42/6","content":"## AD/PA-42/6","sortOrder":1},{"sectionNumber":"Aileron Trim Tab Control Tube and Rudder","sectionType":"part","heading":"Aileron Trim Tab Control Tube and Rudder Trim Cable Retainer Hardware - Inspectionand Replacement","content":"## Aileron Trim Tab Control Tube and Rudder Trim Cable Retainer Hardware - Inspection  \nand Replacement","sortOrder":2},{"sectionNumber":"4/2009","sectionType":"part","heading":"4/2009","content":"## 4/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2014},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The instrument eliminates the entire scope of the original Airworthiness Directive by cancelling it completely. Where the AD previously mandated specific inspection and replacement actions for aircraft components, it now imposes zero requirements."},"complexity_factors":["Single sentence carrying legal effect ('This AD is cancelled on 9 April 2009')","Zero defined terms or interpretation sections","No conditional logic, exceptions, or procedural steps","Only one external reference (Piper SB No. 778) mentioned solely in historical background","Total substantive content is approximately 50 words"],"plain_english_summary":"**This document cancels a previous aircraft safety rule.**\n\nThis Airworthiness Directive (AD) previously forced owners of **Piper PA-42 (Cheyenne III) aircraft** to inspect and replace specific trim system parts—specifically the aileron trim tab control tube and rudder trim cable retainer hardware—within 10 hours of flying time after May 1984.\n\n**What has changed:**\n*   As of **9 April 2009**, this maintenance requirement no longer applies.\n*   Operators no longer need to inspect or replace these parts under this rule.\n*   The Civil Aviation Safety Authority cancelled the directive because it is no longer considered necessary for safety.\n\nThis removes a mandatory maintenance obligation for owners of these aircraft models."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-42-6-aileron-trim-tab-control-tube-and-rudder-trim-cable-retainer-hardware-inspection-and-repl","history":"/api/acts/ad-pa-42-6-aileron-trim-tab-control-tube-and-rudder-trim-cable-retainer-hardware-inspection-and-repl/history","analysis":"/api/acts/ad-pa-42-6-aileron-trim-tab-control-tube-and-rudder-trim-cable-retainer-hardware-inspection-and-repl/analysis","conflicts":"/api/acts/ad-pa-42-6-aileron-trim-tab-control-tube-and-rudder-trim-cable-retainer-hardware-inspection-and-repl/conflicts","importantCases":"/api/acts/ad-pa-42-6-aileron-trim-tab-control-tube-and-rudder-trim-cable-retainer-hardware-inspection-and-repl/important-cases","documents":"/api/acts/ad-pa-42-6-aileron-trim-tab-control-tube-and-rudder-trim-cable-retainer-hardware-inspection-and-repl/documents"}}