{"id":"F2008L02984","name":"AD/PA-28/23 Amdt 2 - Rudder Trim Arm Assembly Cracking - CANCELLED","slug":"ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74969,"registerId":"commonwealth-F2008L02984-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-28 Series Aeroplanes","sectionType":"division","heading":"Piper PA-28 Series Aeroplanes","content":"### Piper PA-28 Series Aeroplanes\n\n| AD/PA-28/23 Amdt 2 | Rudder Trim Arm Assembly Cracking | 9/2008 |\n| ------------------ | --------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                          |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 28 August 2008.                                                                                                                                                                                                             |\n| Background:  | This unique Australian AD required inspection of the rudder trim arm assembly at each issue of a maintenance release. The AD was not based on a manufacturer’s service document. A review indicated its retention as an AD was no longer warranted. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n17 July 2008","sortOrder":0},{"sectionNumber":"AD/PA-28/23 Amdt 2","sectionType":"part","heading":"AD/PA-28/23 Amdt 2","content":"## AD/PA-28/23 Amdt 2","sortOrder":1},{"sectionNumber":"Rudder Trim Arm Assembly Cracking","sectionType":"part","heading":"Rudder Trim Arm Assembly Cracking","content":"## Rudder Trim Arm Assembly Cracking","sortOrder":2},{"sectionNumber":"9/2008","sectionType":"part","heading":"9/2008","content":"## 9/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2267},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the entire regulatory scheme rather than expanding it. The scope has not grown beyond the original purpose; instead, the mandatory inspection requirement has been completely eliminated following a safety review."},"complexity_factors":["Single operative provision (cancellation of the previous instrument)","No definitions or interpretation section","No cross-references to other legislative provisions","No conditional logic, exceptions, or procedural steps","Minimal background explanation (three sentences)"],"plain_english_summary":"This Airworthiness Directive cancels a previous CASA requirement that mandated rudder trim arm inspections on Piper PA-28 aircraft at every maintenance release. CASA reviewed the unique Australia-only rule, found it unsupported by manufacturer guidance and no longer justified.\n\nAs of 28 August 2008, owners and operators no longer must perform that inspection to comply with the AD."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking-cancelled","history":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking-cancelled/history","analysis":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking-cancelled/analysis","conflicts":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking-cancelled/conflicts","importantCases":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking-cancelled/important-cases","documents":"/api/acts/ad-pa-28-23-amdt-2-rudder-trim-arm-assembly-cracking-cancelled/documents"}}