{"id":"F2008L02983","name":"AD/PA-28/16 Amdt 2 - Aileron Spar Cracking - CANCELLED","slug":"ad-pa-28-16-amdt-2-aileron-spar-cracking-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74966,"registerId":"commonwealth-F2008L02983-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-28 Series Aeroplanes","sectionType":"division","heading":"Piper PA-28 Series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-28/16 Amdt 2 | Aileron Spar 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 ailerons 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-28/16 Amdt 2","sectionType":"part","heading":"AD/PA-28/16 Amdt 2","content":"## AD/PA-28/16 Amdt 2","sortOrder":1},{"sectionNumber":"Aileron Spar Cracking","sectionType":"part","heading":"Aileron Spar Cracking","content":"## Aileron Spar 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":2481},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs the precise, limited function stated in its title and requirement field: cancelling the previous directive. It does not expand regulatory reach or introduce new obligations."},"complexity_factors":["Single operative provision (cancellation only)","No definitions section or defined terms","No conditional logic, exceptions, or procedural steps","Background limited to two sentences explaining rationale"],"plain_english_summary":"This document officially scraps a previous aviation safety rule affecting Piper PA-28 series aircraft (light, single-engine planes commonly used for flight training and private flying).\n\n**What it does:**\n- **Cancels** Airworthiness Directive (AD) AD/PA-28/16 effective 28 August 2008\n- **Removes the inspection requirement** that forced owners to check aileron spars (hinged wing panels that control rolling) for cracks every time the aircraft received a maintenance release (the official safety certificate renewed periodically)\n\n**Why it matters:**\n- The cancelled rule was a unique Australian requirement not based on manufacturer guidance\n- Authorities reviewed safety data and decided the inspections were no longer necessary\n- This saves aircraft owners money and reduces red tape while maintaining safety standards"}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-16-amdt-2-aileron-spar-cracking-cancelled","history":"/api/acts/ad-pa-28-16-amdt-2-aileron-spar-cracking-cancelled/history","analysis":"/api/acts/ad-pa-28-16-amdt-2-aileron-spar-cracking-cancelled/analysis","conflicts":"/api/acts/ad-pa-28-16-amdt-2-aileron-spar-cracking-cancelled/conflicts","importantCases":"/api/acts/ad-pa-28-16-amdt-2-aileron-spar-cracking-cancelled/important-cases","documents":"/api/acts/ad-pa-28-16-amdt-2-aileron-spar-cracking-cancelled/documents"}}