{"id":"F2008L00170","name":"AD/CESSNA 180/54 - Fuel Vent Tube - CANCELLED","slug":"ad-cessna-180-54-fuel-vent-tube-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":72344,"registerId":"commonwealth-F2008L00170-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 180, 182 and Wren 460 Series Aero","sectionType":"division","heading":"Cessna 180,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 180/54 | Fuel Vent Tube | 2/2008 |\n| ---------------- | -------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                             |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 14 February 2008.                                                                                                                                                                                                                                                                              |\n| Background:  | This is a unique Australian AD issued in 1978 to inspect the installation of the fuel vent tube. On certain serial number aircraft, the manufacturer indicated that the fuel vent tube may have been installed incorrectly. As all affected aircraft would have been inspected, the unsafe condition no longer exists. |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n20 December 2007","sortOrder":0},{"sectionNumber":"AD/CESSNA 180/54","sectionType":"part","heading":"AD/CESSNA 180/54","content":"## AD/CESSNA 180/54","sortOrder":1},{"sectionNumber":"Fuel Vent Tube","sectionType":"part","heading":"Fuel Vent Tube","content":"## Fuel Vent Tube","sortOrder":2},{"sectionNumber":"2/2008","sectionType":"part","heading":"2/2008","content":"## 2/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2009},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs a straightforward cancellation of a previous airworthiness directive exactly as intended. The scope remains limited to terminating the effect of AD/CESSNA 180/54 without expanding into new regulatory areas or imposing additional requirements."},"complexity_factors":["Single operative provision consisting of one word: 'CANCELLED'","No defined terms or interpretation section","No cross-references to other legislative instruments","No conditional logic, exceptions, or procedural steps","Minimal background explanation spanning only two sentences"],"plain_english_summary":"This document cancels an old aviation safety requirement for specific Cessna and Wren aircraft.\n\n**What this does**\nThis officially cancels (terminates) Airworthiness Directive AD/CESSNA 180/54 effective 14 February 2008.\n\n**Background**\nIn 1978, aviation safety authorities required owners of certain Cessna 180, 182, and Wren 460 series aeroplanes to inspect their fuel vent tubes. The manufacturer had indicated that some aircraft left the factory with these tubes installed incorrectly, which could create a safety risk.\n\n**Why it's being cancelled**\nNearly 30 years later, all affected aircraft have undergone the required inspection. The unsafe condition no longer exists because every plane that needed checking has been checked. The rule is no longer necessary.\n\n**Who is affected**\nOwners and operators of Cessna 180, 182, and Wren 460 series aircraft who were previously subject to the 1978 inspection requirement. No further action is now required."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-180-54-fuel-vent-tube-cancelled","history":"/api/acts/ad-cessna-180-54-fuel-vent-tube-cancelled/history","analysis":"/api/acts/ad-cessna-180-54-fuel-vent-tube-cancelled/analysis","conflicts":"/api/acts/ad-cessna-180-54-fuel-vent-tube-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-180-54-fuel-vent-tube-cancelled/important-cases","documents":"/api/acts/ad-cessna-180-54-fuel-vent-tube-cancelled/documents"}}