{"id":"F2008L00165","name":"AD/CESSNA 206/25 - Fuel Vent Tube - CANCELLED","slug":"ad-cessna-206-25-fuel-vent-tube-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":72331,"registerId":"commonwealth-F2008L00165-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 206 Series Aeroplanes","sectionType":"division","heading":"Cessna 206 Series Aeroplanes","content":"### Cessna 206 Series Aeroplanes\n\n| AD/CESSNA 206/25 | 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 206/25","sectionType":"part","heading":"AD/CESSNA 206/25","content":"## AD/CESSNA 206/25","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":1405},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument maintains its original limited purpose of cancelling a specific 1978 airworthiness directive. No expansion of scope or additional regulatory requirements introduced."},"complexity_factors":["Single operative provision cancelling previous law","No interpretation section or defined terms","No cross-references to other legislation","No conditional logic, exceptions, or procedural steps","Straightforward administrative action with minimal legal text"],"plain_english_summary":"**What this does**\nThis document officially cancels Airworthiness Directive (AD) number AD/CESSNA 206/25, effective 14 February 2008.\n\n**The backstory**\n- In **1978**, aviation safety regulators issued a directive requiring inspection of fuel vent tubes on certain Cessna 206 series aircraft\n- The manufacturer had identified that some planes left the factory with incorrectly installed fuel vent tubes (a component that allows air into the fuel tank to prevent vacuum lock)\n- This was a uniquely Australian requirement, not adopted from overseas regulators\n\n**Why cancel it now?**\nAfter nearly 30 years, all affected aircraft have been inspected and any defects corrected. The unsafe condition no longer exists in the Australian fleet.\n\n**Who is affected**\nOwners and operators of Cessna 206 series aircraft. They are no longer legally required to perform the specific fuel vent tube inspections mandated by the original 1978 directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-206-25-fuel-vent-tube-cancelled","history":"/api/acts/ad-cessna-206-25-fuel-vent-tube-cancelled/history","analysis":"/api/acts/ad-cessna-206-25-fuel-vent-tube-cancelled/analysis","conflicts":"/api/acts/ad-cessna-206-25-fuel-vent-tube-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-206-25-fuel-vent-tube-cancelled/important-cases","documents":"/api/acts/ad-cessna-206-25-fuel-vent-tube-cancelled/documents"}}