{"id":"F2006B08303","name":"AD/CESSNA 400/16 - Elevator Control Bob Weight Arm - Inspection","slug":"ad-cessna-400-16-elevator-control-bob-weight-arm-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115696,"registerId":"commonwealth-F2006B08303-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/16 - Elevator Control Bob Weight Arm - 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 400/16  Elevator Control Bob Weight Arm - Inspection\n\n\n3/70\n\n \n\nApplicability: All models which have exceeded 1500 hours time in service and are not modified to the satisfaction of the Secretary.\n\n \n\nRequirement: Inspect the elevator control bob weight arm P/N 5091500-1 for cracking in the vicinity of the weld.\n\n \n\nCompliance: At intervals not exceeding 100 hours time in service after 1 September 1971.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\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":2591},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope, targeting only the inspection of a specific elevator component in high-time Cessna 400 aircraft. There is no evidence of scope expansion into unrelated aircraft systems or types."},"complexity_factors":["Single, specific mechanical component identified by part number","Unambiguous inspection requirement with no nested conditions or exceptions","Straightforward compliance interval (100 hours time in service)","Limited applicability criteria based solely on flight hours and modification status","No cross-references to other legislative provisions within the operative text"],"plain_english_summary":"This AD requires owners/operators of Cessna 400 series aircraft (with >1,500 total hours and no approved modification) to inspect the elevator control bob weight arm (P/N 5091500-1) for cracks at the weld joint.  \n\nInspections must be repeated every 100 flight hours (from 1 Sep 1971 onward) to detect cracks that could cause elevator control failure and serious risk to safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-16-elevator-control-bob-weight-arm-inspection","history":"/api/acts/ad-cessna-400-16-elevator-control-bob-weight-arm-inspection/history","analysis":"/api/acts/ad-cessna-400-16-elevator-control-bob-weight-arm-inspection/analysis","conflicts":"/api/acts/ad-cessna-400-16-elevator-control-bob-weight-arm-inspection/conflicts","importantCases":"/api/acts/ad-cessna-400-16-elevator-control-bob-weight-arm-inspection/important-cases","documents":"/api/acts/ad-cessna-400-16-elevator-control-bob-weight-arm-inspection/documents"}}