{"id":"F2006B04926","name":"AD/CESSNA 150/29 Amdt 1 - Fuel Vent Tube","slug":"ad-cessna-150-29-amdt-1-fuel-vent-tube","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44771,"registerId":"commonwealth-F2006B04926-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 150/29 Amdt 1 - Fuel Vent Tube","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Cessna 150, F150, 152 & F152 Series Aeroplanes\n\n \n\nAD/CESSNA 150/29\n\nAmdt 1\n\n\nFuel Vent Tube 1/79\n\n \n\nApplicability: Models 150 and A150 with S/Nos. 15078506 to 15079405 and A1500685 to A1500734. Models 152 and A152 with S/Nos. 15279406 to 15281252 and A1520735 to A1520780.\n\n \n\nRequirement: Action in accordance with Cessna SL No. SE 78-40, Supplement No. 2. Compliance:  Within 100 hours time in service after 31 January 1979.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2549},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original narrow technical scope focused solely on fuel vent tube compliance for defined Cessna aircraft. As a specific airworthiness directive addressing a known mechanical defect, it has not expanded beyond its original safety purpose."},"complexity_factors":["Narrow applicability restricted to specific aircraft serial number ranges only","Single requirement referencing one external technical document (Cessna Service Letter)","Simple time-based compliance calculation (100 hours after fixed date)","No definitions section, conditional clauses, or exceptions within the text"],"plain_english_summary":"This Airworthiness Directive legally required owners of specified Cessna 150/152 aircraft to inspect or modify the fuel vent tube per Cessna Service Letter SE 78‑40, Supplement No. 2. It applied to the listed 150/A150 and 152/A152 serial-number ranges and had to be completed within 100 flight hours after 31 January 1979. The measure prevents fuel leaks, fuel starvation, and potential engine failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube","history":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube/history","analysis":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube/analysis","conflicts":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube/conflicts","importantCases":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube/important-cases","documents":"/api/acts/ad-cessna-150-29-amdt-1-fuel-vent-tube/documents"}}