{"id":"F2006B08191","name":"AD/CESSNA 320/13 - Fuel Crossover Line - Modification","slug":"ad-cessna-320-13-fuel-crossover-line-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115400,"registerId":"commonwealth-F2006B08191-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 320/13 - Fuel Crossover Line - Modification","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 320 Series Aeroplanes\n\n \n\nAD/CESSNA 320/13 Fuel Crossover Line - Modification 6/70\n\nApplicability: All models.\n\n \n\nDocument: Rex Aviation Tech. Memo No. TM-26/A. Compliance: Within 100 hours time in service after 30 June 1970.\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":1418},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: a one-time safety modification for a specific aircraft fuel system. There is no evidence of expansion into broader operational or maintenance requirements beyond the fuel crossover line modification."},"complexity_factors":["Single operative requirement with no sections or subsections","No defined terms requiring interpretation","Only one external reference (the technical memo specifying the actual modification)","Simple arithmetic compliance deadline (100 hours after fixed date)","Total content is approximately 50 words of operative text"],"plain_english_summary":"**What this is:** An airworthiness directive — a mandatory safety order issued by the Civil Aviation Safety Authority requiring a specific mechanical fix on certain aircraft.\n\n**Who it affects:** Owners and operators of **all models** of Cessna 320 series aeroplanes.\n\n**What you must do:** Modify the aircraft's **fuel crossover line** (a pipe or hose that allows fuel to flow between tanks) according to the instructions in **Rex Aviation Technical Memo No. TM-26/A**.\n\n**Deadline:** You must complete this modification within **100 hours of flight time** after 30 June 1970.\n\n**Why it matters:** This directive ensures the fuel system meets safety standards. Flying without this modification could risk fuel leaks or engine failure, making the aircraft unairworthy (illegal to fly)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-320-13-fuel-crossover-line-modification","history":"/api/acts/ad-cessna-320-13-fuel-crossover-line-modification/history","analysis":"/api/acts/ad-cessna-320-13-fuel-crossover-line-modification/analysis","conflicts":"/api/acts/ad-cessna-320-13-fuel-crossover-line-modification/conflicts","importantCases":"/api/acts/ad-cessna-320-13-fuel-crossover-line-modification/important-cases","documents":"/api/acts/ad-cessna-320-13-fuel-crossover-line-modification/documents"}}