{"id":"F2006B08357","name":"AD/CESSNA 400/74 - Fuel Pressure Switch Line - Inspection and Modification","slug":"ad-cessna-400-74-fuel-pressure-switch-line-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115764,"registerId":"commonwealth-F2006B08357-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/74 - Fuel Pressure Switch Line - Inspection and 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 400 Series Aeroplanes\n\n \n\n# AD/CESSNA 400/74 Fuel Pressure Switch Line - Inspection\n\nand Modification\n\nApplicability: Model 402C with S/Nos. 402C0001 to 402C0292; Model 414A with S/Nos.\n\n414A0001 to 414A0500.\n\n \n\nDocument: Cessna SIL No. ME80-23.\n\n \n\nCompliance: Within 50 hours time in service after 13 August 1980.\n\n# 9/80\n\n \n\nBackground:  An improved support is now available for the fuel pressure switch line in the engine nacelle. Chafing failure of this line may cause fuel to be sprayed on to the exhaust system.\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":1870},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope addressing the specific safety defect in the fuel pressure switch line support for identified Cessna aircraft models."},"complexity_factors":["Single, clearly defined technical requirement with no sub-conditions","Limited applicability restricted to two specific aircraft models and defined serial number ranges","No exceptions, exemptions, or alternative compliance pathways","Straightforward compliance deadline (50 hours time in service from a fixed date)","No defined terms, interpretive provisions, or cross-references to other legislation"],"plain_english_summary":"Owners/operators of Cessna 402C (s/n 402C0001–402C0292) and 414A (s/n 414A0001–414A0500) must inspect and modify the fuel pressure switch line in the engine nacelle.  \n\nWithin 50 flight hours after 13 August 1980, install an improved support bracket per Cessna Service Information Letter No. ME80-23 to prevent chafing that could wear through the fuel line and spray fuel onto the hot exhaust, creating a fire or explosion hazard."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-74-fuel-pressure-switch-line-inspection-and-modification","history":"/api/acts/ad-cessna-400-74-fuel-pressure-switch-line-inspection-and-modification/history","analysis":"/api/acts/ad-cessna-400-74-fuel-pressure-switch-line-inspection-and-modification/analysis","conflicts":"/api/acts/ad-cessna-400-74-fuel-pressure-switch-line-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-cessna-400-74-fuel-pressure-switch-line-inspection-and-modification/important-cases","documents":"/api/acts/ad-cessna-400-74-fuel-pressure-switch-line-inspection-and-modification/documents"}}