{"id":"F2008L03254","name":"AD/PA-32/57 - Nose Landing Gear Retraction System - Modification - CANCELLED","slug":"ad-pa-32-57-nose-landing-gear-retraction-system-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75357,"registerId":"commonwealth-F2008L03254-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-32 (Cherokee Six) Series Aeropl","sectionType":"division","heading":"Piper PA-32 (Cherokee Six) Series Aeroplanes","content":"### Piper PA-32 (Cherokee Six) Series Aeroplanes\n\n| AD/PA-32/57 | Nose Landing GearRetraction System - Modification | 10/2008 |\n| ----------- | ------------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                    |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 25 September 2008.                                                                                                                                                                                                    |\n| Background:  | This unique Australian AD specified modification of the nose landing gear retraction system in accordance with Piper SB No. 593. Compliance was required within 100 hours time in service after September 1978. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n14 August 2008","sortOrder":0},{"sectionNumber":"AD/PA-32/57","sectionType":"part","heading":"AD/PA-32/57","content":"## AD/PA-32/57","sortOrder":1},{"sectionNumber":"Nose Landing GearRetraction System - Mod","sectionType":"part","heading":"Nose Landing GearRetraction System - Modification","content":"## Nose Landing Gear  \nRetraction System - Modification","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1992},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument simply cancels a previous Airworthiness Directive without expanding or altering the regulatory framework. The scope remains limited to the specific aircraft series originally covered (Piper PA-32 Cherokee Six)."},"complexity_factors":["Single operative provision cancelling a previous instrument","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislation","Extremely short length (effectively one sentence of legal effect)"],"plain_english_summary":"This document cancels a previous aviation safety rule that required owners of **Piper PA-32 (Cherokee Six) series aircraft** to modify their nose landing gear retraction systems.\n\n**What it does:**\n- Cancels Airworthiness Directive AD/PA-32/57 effective 25 September 2008\n- Removes the legal requirement for aircraft operators to comply with the earlier modification order (which mandated compliance with Piper Service Bulletin No. 593 within 100 flying hours after September 1978)\n\n**Who it affects:**\n- Owners and operators of Piper PA-32 Cherokee Six aeroplanes\n- Maintenance organisations servicing these aircraft\n\n**Why it matters:**\nThe original rule required a specific safety modification to prevent nose landing gear failures. This cancellation removes that compliance burden because the modification is no longer considered necessary for airworthiness, though operators may still choose to perform it as best practice."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-57-nose-landing-gear-retraction-system-modification-cancelled","history":"/api/acts/ad-pa-32-57-nose-landing-gear-retraction-system-modification-cancelled/history","analysis":"/api/acts/ad-pa-32-57-nose-landing-gear-retraction-system-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-32-57-nose-landing-gear-retraction-system-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-32-57-nose-landing-gear-retraction-system-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-32-57-nose-landing-gear-retraction-system-modification-cancelled/documents"}}