{"id":"F2008L00740","name":"AD/CESSNA 210/25 - Main Gear Wheel Assemblies - Modification - CANCELLED","slug":"ad-cessna-210-25-main-gear-wheel-assemblies-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":72788,"registerId":"commonwealth-F2008L00740-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 210 Series Aeroplanes","sectionType":"division","heading":"Cessna 210 Series Aeroplanes","content":"### Cessna 210 Series Aeroplanes\n\n| AD/CESSNA 210/25 | Main Gear WheelAssemblies - Modification | 4/2008 |\n| ---------------- | ---------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                      |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 10 April 2008.                                                                                                                                                                                                                                          |\n| Background:  | This AD, issued in 1974, required a modification to the main gear wheel assemblies by replacing the 1/4 inch wheel through bolts with 5/16 inch cap screws. As all aircraft would have been modified by now, the unsafe condition no longer exists and the AD can be cancelled. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n28 February 2008","sortOrder":0},{"sectionNumber":"AD/CESSNA 210/25","sectionType":"part","heading":"AD/CESSNA 210/25","content":"## AD/CESSNA 210/25","sortOrder":1},{"sectionNumber":"Main Gear WheelAssemblies - Modification","sectionType":"part","heading":"Main Gear WheelAssemblies - Modification","content":"## Main Gear Wheel  \nAssemblies - Modification","sortOrder":2},{"sectionNumber":"4/2008","sectionType":"part","heading":"4/2008","content":"## 4/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2794},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The original 1974 directive imposed mandatory safety modifications and compliance obligations on aircraft owners. This instrument eliminates that regulatory regime entirely, shifting from imposing duties to removing them."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislation","Extremely short length (under 100 words of operative content)","Straightforward background explanation with no legal tests"],"plain_english_summary":"**What this does:** This document cancels an old aviation safety rule (called an **Airworthiness Directive** or AD) that applied to Cessna 210 series aircraft.\n\n**The old rule:** Since 1974, owners of these planes were required to modify their main landing gear wheel assemblies by replacing 1/4 inch wheel bolts with stronger 5/16 inch cap screws. This prevented dangerous wheel failures during landing.\n\n**The change:** The rule is now cancelled because every affected aircraft has already been modified over the past 34 years. The safety risk no longer exists, so the regulatory requirement is obsolete.\n\n**Who is affected:** Aircraft owners, operators, and maintenance engineers.\n\n**Bottom line:** This removes a redundant compliance burden. No action is required."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-210-25-main-gear-wheel-assemblies-modification-cancelled","history":"/api/acts/ad-cessna-210-25-main-gear-wheel-assemblies-modification-cancelled/history","analysis":"/api/acts/ad-cessna-210-25-main-gear-wheel-assemblies-modification-cancelled/analysis","conflicts":"/api/acts/ad-cessna-210-25-main-gear-wheel-assemblies-modification-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-210-25-main-gear-wheel-assemblies-modification-cancelled/important-cases","documents":"/api/acts/ad-cessna-210-25-main-gear-wheel-assemblies-modification-cancelled/documents"}}