{"id":"F2009L00201","name":"AD/PA-23/71 - Emergency Gear Extension System - Inspection - CANCELLED","slug":"ad-pa-23-71-emergency-gear-extension-system-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76664,"registerId":"commonwealth-F2009L00201-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-23 (Apache and Aztec) Series Ae","sectionType":"division","heading":"Piper PA-23 (Apache and Aztec) Series Aeroplanes","content":"### Piper PA-23 (Apache and Aztec) Series Aeroplanes\n\n| AD/PA-23/71 | Emergency GearExtension System - Inspection | 2/2009 |\n| ----------- | ------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 12 February 2009.                                                                                                                                                                 |\n| Background:  | This unique Australian AD specified inspection of the emergency gear extension system in accordance with Piper SB No. 564 within 100 hours time in service after July 1977. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n23 December 2008","sortOrder":0},{"sectionNumber":"AD/PA-23/71","sectionType":"part","heading":"AD/PA-23/71","content":"## AD/PA-23/71","sortOrder":1},{"sectionNumber":"Emergency GearExtension System - Inspect","sectionType":"part","heading":"Emergency GearExtension System - Inspection","content":"## Emergency Gear  \nExtension System - Inspection","sortOrder":2},{"sectionNumber":"2/2009","sectionType":"part","heading":"2/2009","content":"## 2/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2030},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This document reduces the scope of the regulatory regime by cancelling the Airworthiness Directive entirely. It does not expand beyond the original purpose; rather, it eliminates the original mandatory inspection requirement."},"complexity_factors":["Document contains only a cancellation notice with no operative provisions","No defined terms or interpretation sections","No conditional logic or cross-references to other legislation","Single straightforward requirement: cancellation of previous directive"],"plain_english_summary":"**What this is:** This document cancels a previous aviation safety rule (called an Airworthiness Directive) that applied to specific Piper aircraft models.\n\n**Who it affects:** Owners and operators of **Piper PA-23 Apache and Aztec** series aeroplanes.\n\n**What it used to require:** The original rule required these aircraft to have their emergency landing gear extension systems inspected within 100 flying hours after July 1977, following specific manufacturer guidelines (Piper Service Bulletin No. 564).\n\n**What it does now:** As of **12 February 2009**, this inspection requirement is **cancelled** and no longer applies. Aircraft owners do not need to comply with this particular safety directive anymore.\n\n**Why this matters:** This removes a compliance burden for operators of these older aircraft, as the safety authority determined the inspection was no longer necessary."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-23-71-emergency-gear-extension-system-inspection-cancelled","history":"/api/acts/ad-pa-23-71-emergency-gear-extension-system-inspection-cancelled/history","analysis":"/api/acts/ad-pa-23-71-emergency-gear-extension-system-inspection-cancelled/analysis","conflicts":"/api/acts/ad-pa-23-71-emergency-gear-extension-system-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-pa-23-71-emergency-gear-extension-system-inspection-cancelled/important-cases","documents":"/api/acts/ad-pa-23-71-emergency-gear-extension-system-inspection-cancelled/documents"}}