{"id":"F2006B08349","name":"AD/CESSNA 400/64 - Hydraulic Lines - Inspection","slug":"ad-cessna-400-64-hydraulic-lines-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115756,"registerId":"commonwealth-F2006B08349-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/64 - Hydraulic Lines - Inspection","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 400/64 Hydraulic Lines - Inspection 2/79\n\nApplicability: Model 404 with S/Nos. 404-0001 to 404-0404. Document:  Cessna SL No. ME78-42.\n\nCompliance: Within 100 hours time in service after 28 February 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\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2228},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope—mandating a specific inspection for a defined set of aircraft. It has not expanded beyond its initial safety purpose."},"complexity_factors":["Single, specific safety requirement with no subsections","No definitions or interpretation section","No conditional logic, exceptions, or nested provisions","Applicability limited to specific aircraft model and serial number range"],"plain_english_summary":"This Airworthiness Directive (AD) is a mandatory safety order requiring a **hydraulic line inspection** on specific aircraft.\n\n**Who it affects:**\nOwners and operators of **Cessna Model 404 aircraft** with serial numbers from 404-0001 to 404-0404.\n\n**What you must do:**\nInspect the aircraft's hydraulic lines according to the procedures in **Cessna Service Letter ME78-42**. This inspection must be completed **within 100 hours of flight time (time in service) after 28 February 1979**.\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety instructions issued by the aviation regulator when defects are discovered that could affect flight safety. Compliance is mandatory—you cannot legally operate the aircraft beyond the specified timeframe without completing the required inspection."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-64-hydraulic-lines-inspection","history":"/api/acts/ad-cessna-400-64-hydraulic-lines-inspection/history","analysis":"/api/acts/ad-cessna-400-64-hydraulic-lines-inspection/analysis","conflicts":"/api/acts/ad-cessna-400-64-hydraulic-lines-inspection/conflicts","importantCases":"/api/acts/ad-cessna-400-64-hydraulic-lines-inspection/important-cases","documents":"/api/acts/ad-cessna-400-64-hydraulic-lines-inspection/documents"}}