{"id":"F2006B05161","name":"AD/CESSNA 188/26 - Fuel Vent Line","slug":"ad-cessna-188-26-fuel-vent-line","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45277,"registerId":"commonwealth-F2006B05161-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 188/26 - Fuel Vent Line","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 188 (Agwagon) Series Aeroplanes\n\n \n\nAD/CESSNA 188/26 Fuel Vent Line 11/75\n\nApplicability: All model A188 with S/Nos. 18800446 to 18802278. Requirement:  Action in accordance with Cessna SL SE75-18.\n\nCompliance: Within 100 hours time in service after 28 November 1975.\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\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2079},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains a discrete, targeted safety order addressing a specific mechanical defect in fuel vent lines; it has not expanded beyond its original technical scope of ensuring airworthiness for the affected Cessna A188 aircraft."},"complexity_factors":["Narrow applicability restricted to a single aircraft model and specific serial number range","Single discrete requirement with no exceptions, exemptions, or conditional logic","Simple compliance trigger based on flight hours (time-in-service) rather than complex conditional dates","Reference to only one external technical document (Cessna Service Letter SE75-18)"],"plain_english_summary":"**What it does:** This Airworthiness Directive is a safety order requiring owners of specific Cessna agricultural aircraft to inspect or repair the fuel vent line to prevent potential fuel system failures.\n\n**Who it affects:** Owners and operators of **Cessna Model A188 \"Agwagon\"** aircraft with serial numbers between **18800446 and 18802278**.\n\n**What must be done:** Follow the manufacturer's instructions in **Cessna Service Letter SE75-18** regarding the fuel vent line.\n\n**Deadline:** The work must be completed within **100 hours of flight time** (not calendar days) after 28 November 1975.\n\n**Why it matters:** Fuel vent line defects can lead to fuel leaks or engine failure, posing serious safety risks during agricultural operations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-188-26-fuel-vent-line","history":"/api/acts/ad-cessna-188-26-fuel-vent-line/history","analysis":"/api/acts/ad-cessna-188-26-fuel-vent-line/analysis","conflicts":"/api/acts/ad-cessna-188-26-fuel-vent-line/conflicts","importantCases":"/api/acts/ad-cessna-188-26-fuel-vent-line/important-cases","documents":"/api/acts/ad-cessna-188-26-fuel-vent-line/documents"}}