{"id":"F2008L01799","name":"AD/CESSNA 180/40 Amdt 1 - Main Gear Wheel Assemblies - CANCELLED","slug":"ad-cessna-180-40-amdt-1-main-gear-wheel-assemblies-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":73957,"registerId":"commonwealth-F2008L01799-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 180, 182 and Wren 460 Series Aero","sectionType":"division","heading":"Cessna 180, 182 and Wren 460 Series Aeroplanes","content":"### Cessna 180, 182 and Wren 460 Series Aeroplanes\n\n| AD/CESSNA 180/40 Amdt 1 | Main Gear Wheel Assemblies | 7/2008 |\n| ----------------------- | -------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                       |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 3 July 2008.                                                                                                                                                                                                                                                                             |\n| Background:  | This airworthiness directive, 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 in accordance with Cessna Service Letter SE 74-8. As all aircraft would have been modified by now, the AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n6 May 2008","sortOrder":0},{"sectionNumber":"AD/CESSNA 180/40 Amdt 1","sectionType":"part","heading":"AD/CESSNA 180/40 Amdt 1","content":"## AD/CESSNA 180/40 Amdt 1","sortOrder":1},{"sectionNumber":"Main Gear Wheel Assemblies","sectionType":"part","heading":"Main Gear Wheel Assemblies","content":"## Main Gear Wheel Assemblies","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":3910},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"This amendment fundamentally changes the scope by cancelling the mandatory maintenance requirement entirely. The original 1974 directive required specific mechanical modifications to aircraft wheel assemblies; this instrument eliminates that obligation completely, converting the directive from an active safety mandate into a cancelled instrument."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislation","Extremely brief (under 200 words of substantive content)"],"plain_english_summary":"This instrument cancels a 1974 CASA airworthiness directive that required owners/operators of Cessna 180 and 182 series and Wren 460 aeroplanes to replace 1/4\" landing‑gear wheel through‑bolts with 5/16\" cap screws. Effective 3 July 2008, CASA found the modification to be universally completed, so the specific maintenance requirement is no longer necessary."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-180-40-amdt-1-main-gear-wheel-assemblies-cancelled","history":"/api/acts/ad-cessna-180-40-amdt-1-main-gear-wheel-assemblies-cancelled/history","analysis":"/api/acts/ad-cessna-180-40-amdt-1-main-gear-wheel-assemblies-cancelled/analysis","conflicts":"/api/acts/ad-cessna-180-40-amdt-1-main-gear-wheel-assemblies-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-180-40-amdt-1-main-gear-wheel-assemblies-cancelled/important-cases","documents":"/api/acts/ad-cessna-180-40-amdt-1-main-gear-wheel-assemblies-cancelled/documents"}}