{"id":"F2008L00175","name":"AD/CESSNA 150/29 Amdt 1 - Fuel Vent Tube - CANCELLED","slug":"ad-cessna-150-29-amdt-1-fuel-vent-tube-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":72356,"registerId":"commonwealth-F2008L00175-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 150, F150, 152 & F152 Series Aero","sectionType":"division","heading":"Cessna 150, F150, 152 & F152 Series Aeroplanes","content":"### Cessna 150, F150, 152 & F152 Series Aeroplanes\n\n| AD/CESSNA 150/29 Amdt 1 | 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 150/29 Amdt 1","sectionType":"part","heading":"AD/CESSNA 150/29 Amdt 1","content":"## AD/CESSNA 150/29 Amdt 1","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":2898},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The amendment does not expand the scope beyond the original 1978 directive's intent; rather, it represents the completion of the original safety objective. The subject matter remains limited to fuel vent tubes on specific Cessna aircraft, but the regulatory obligation is terminated because the unsafe condition has been resolved."},"complexity_factors":["Single operative provision consisting of one word: 'CANCELLED'","No defined terms, interpretation section, or legal definitions","No conditional logic, exceptions, or procedural requirements","Extremely short length (under 50 words of operative text)"],"plain_english_summary":"This rule formally cancels Airworthiness Directive No. 29 (issued 1978), removing the legal requirement to inspect the fuel vent tube on specified Cessna 150, F150, 152, and F152 series aircraft.  \n\nAffecting owners, operators, and maintenance personnel, the cancellation—effective 14 February 2008—reflects that the previously identified installation defect has been corrected and the unsafe condition no longer exists."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube-cancelled","history":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube-cancelled/history","analysis":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube-cancelled/analysis","conflicts":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube-cancelled/important-cases","documents":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube-cancelled/documents"}}