{"id":"F2006B08345","name":"AD/CESSNA 400/6 - Fuel Pressure Switch - Relocation","slug":"ad-cessna-400-6-fuel-pressure-switch-relocation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115752,"registerId":"commonwealth-F2006B08345-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/6 - Fuel Pressure Switch - Relocation","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\nAD/CESSNA 400/6 Fuel Pressure Switch - Relocation 10/68\n\nApplicability: All models 401 and 402 with S/Nos. 401/402-0001 to 401/402-0279. Document:  Cessna SL ME68-18.\n\nCompliance: Within 100 hours time in service after 28 November 1968.\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":1649},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow technical scope. It addresses only the specific mechanical modification (fuel pressure switch relocation) for the identified aircraft models and has not expanded to cover additional systems, aircraft types, or operational requirements beyond the original safety issue."},"complexity_factors":["Extremely brief single-requirement directive (less than 100 words of substantive content)","Relies entirely on external technical document (Cessna Service Letter ME68-18) for implementation details","Limited conditional logic — applicability is strictly limited to defined serial number ranges","Single compliance trigger based on flight hours ('time in service') rather than complex conditional deadlines"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — a legally binding safety order issued by the Civil Aviation Safety Authority (CASA) that requires aircraft owners to fix a specific safety issue.\n\n**Who it affects:** Owners and operators of specific Cessna 401 and 402 model aeroplanes with serial numbers between 401/402-0001 and 401/402-0279.\n\n**What you must do:** Relocate the fuel pressure switch on these aircraft. The actual instructions for how to do this are contained in a separate Cessna Service Letter (SL ME68-18) referenced in the document.\n\n**When you must comply:** Within 100 hours of \"time in service\" (meaning actual flight time, not just calendar time) after 28 November 1968.\n\n**Why it matters:** This directive addresses a specific technical defect or safety concern with the original placement of the fuel pressure switch. Non-compliance means the aircraft is not legally airworthy and cannot be flown."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-6-fuel-pressure-switch-relocation","history":"/api/acts/ad-cessna-400-6-fuel-pressure-switch-relocation/history","analysis":"/api/acts/ad-cessna-400-6-fuel-pressure-switch-relocation/analysis","conflicts":"/api/acts/ad-cessna-400-6-fuel-pressure-switch-relocation/conflicts","importantCases":"/api/acts/ad-cessna-400-6-fuel-pressure-switch-relocation/important-cases","documents":"/api/acts/ad-cessna-400-6-fuel-pressure-switch-relocation/documents"}}