{"id":"F2008L03718","name":"AD/PA-24/31 - Landing Gear and Flap Assemblies - Inspection - CANCELLED","slug":"ad-pa-24-31-landing-gear-and-flap-assemblies-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75440,"registerId":"commonwealth-F2008L03718-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-24 (Comanche) Series Aeroplanes","sectionType":"division","heading":"Piper PA-24 (Comanche) Series Aeroplanes","content":"### Piper PA-24 (Comanche) Series Aeroplanes\n\n| AD/PA-24/31 | Landing Gear andFlap Assemblies - Inspection | 11/2008 |\n| ----------- | -------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                     |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 23 October 2008.                                                                                                                                                                                                       |\n| Background:  | This unique Australian AD specified inspection of landing gear and flap assemblies in accordance with Piper SL No. 650 Addendum 1. Compliance was required within 100 hours time in service after December 1973. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n9 September 2008","sortOrder":0},{"sectionNumber":"AD/PA-24/31","sectionType":"part","heading":"AD/PA-24/31","content":"## AD/PA-24/31","sortOrder":1},{"sectionNumber":"Landing Gear andFlap Assemblies - Inspec","sectionType":"part","heading":"Landing Gear andFlap Assemblies - Inspection","content":"## Landing Gear and  \nFlap Assemblies - Inspection","sortOrder":2},{"sectionNumber":"11/2008","sectionType":"part","heading":"11/2008","content":"## 11/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":937},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument represents a straightforward termination of a previous regulatory requirement. It does not expand the scope of aviation safety law; rather, it narrows it by removing a specific directive from force. The scope remains consistent with the original purpose of the AD program—managing aircraft safety—by decluttering obsolete requirements."},"complexity_factors":["Single operative provision: cancellation only","No defined terms or interpretation section","No cross-references to other legislation (only historical reference to previous directive)","No conditional logic or exceptions","Background section is purely historical context with no legal effect"],"plain_english_summary":"**What this is:** This document cancels a previous aircraft safety rule (called an Airworthiness Directive or AD) that required owners of Piper PA-24 Comanche aeroplanes to inspect their landing gear and flap assemblies.\n\n**Who it affects:** Owners and operators of Piper PA-24 (Comanche) series aircraft, and maintenance engineers who work on them.\n\n**What it does:** It formally cancels the earlier directive (AD/PA-24/31) as of 23 October 2008. The original rule required a specific inspection within 100 flying hours after December 1973, following guidelines from the manufacturer (Piper Service Letter No. 650). Because that safety requirement is no longer necessary, this document makes it void—meaning owners no longer need to comply with that specific inspection rule.\n\n**Why it matters:** It removes a regulatory burden from aircraft owners. Once cancelled, the specific inspection mandated back in 1973 is no longer legally required, though owners must still follow other current safety rules."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-24-31-landing-gear-and-flap-assemblies-inspection-cancelled","history":"/api/acts/ad-pa-24-31-landing-gear-and-flap-assemblies-inspection-cancelled/history","analysis":"/api/acts/ad-pa-24-31-landing-gear-and-flap-assemblies-inspection-cancelled/analysis","conflicts":"/api/acts/ad-pa-24-31-landing-gear-and-flap-assemblies-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-pa-24-31-landing-gear-and-flap-assemblies-inspection-cancelled/important-cases","documents":"/api/acts/ad-pa-24-31-landing-gear-and-flap-assemblies-inspection-cancelled/documents"}}