{"id":"F2008L01878","name":"AD/PA-28/46 - Wing Reinforcement - Modification - CANCELLED","slug":"ad-pa-28-46-wing-reinforcement-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74102,"registerId":"commonwealth-F2008L01878-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-28 Series Aeroplanes","sectionType":"division","heading":"Piper PA-28 Series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-28/46 | Wing Reinforcement - Modification | 7/2008 |\n| ----------- | --------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                           |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 3 July 2008.                                                                                                                                                                                                                 |\n| Background:  | This Directive specified mandatory installation of modification kit Piper 760878V in accordance with Piper SB No. 424 within 100 hours from 31 July 1974. As all affected aircraft would have been modified long ago, this AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n7 May 2008","sortOrder":0},{"sectionNumber":"AD/PA-28/46","sectionType":"part","heading":"AD/PA-28/46","content":"## AD/PA-28/46","sortOrder":1},{"sectionNumber":"Wing Reinforcement - Modification","sectionType":"part","heading":"Wing Reinforcement - Modification","content":"## Wing Reinforcement - Modification","sortOrder":2},{"sectionNumber":"7/2008","sectionType":"part","heading":"7/2008","content":"## 7/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1870},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the regulatory requirement entirely rather than expanding or altering its scope. It formally cancels a previous airworthiness directive that mandated wing reinforcement modifications for Piper PA-28 aircraft, recognising that all affected aircraft have long since complied with the original 1974 requirement."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislation","Extremely short document (cancellation notice only)"],"plain_english_summary":"This instrument formally cancels a long‑standing airworthiness directive that had required installation of a Piper wing reinforcement kit on PA‑28 aircraft. It removes the legal obligation to fit Piper 760878V (per SB No. 424), but affects few if any operators because CASA found the 1974 requirement was already complied with. The cancellation is a regulatory cleanup that eliminates an obsolete paperwork burden."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-46-wing-reinforcement-modification-cancelled","history":"/api/acts/ad-pa-28-46-wing-reinforcement-modification-cancelled/history","analysis":"/api/acts/ad-pa-28-46-wing-reinforcement-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-28-46-wing-reinforcement-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-28-46-wing-reinforcement-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-28-46-wing-reinforcement-modification-cancelled/documents"}}