{"id":"F2006B04558","name":"AD/BELL 212/26 Amdt 1 - Hydraulic Servo Cylinder Assembly - Spanner Link Assembly Inspection and Rework","slug":"ad-bell-212-26-amdt-1-hydraulic-servo-cylinder-assembly-spanner-link-assembly-inspection-and-rework","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114288,"registerId":"commonwealth-F2006B04558-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 212/26 Amdt 1 - Hydraulic Servo Cylinder Assembly - Spanner Link Assembly Inspection and Rework","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\nBell Helicopter Textron 212 Series Helicopters\n\n \n\nAD/BELL 212/26\n\nAmdt 1\n\n\nHydraulic Servo Cylinder Assembly - Spanner Link Assembly Inspection and Rework\n\n\n10/82\n\n \n\nApplicability: All model 212 helicopters S/N 30502 thru 30925, 30927 thru 30943, 30945, 30953,\n\n30955, 30958, 30964, 32101 thru 32107, and 32109 thru 32112.\n\n \n\nDocument: Bell 212 Alert SB 212-79-16A.\n\n \n\nCompliance: Within 100 hours time in service after 31 October 1982.\n\n \n\nBackground: The redundant feature of the dual hydraulic servo system could be adversely affected by interference to the spanner link assembly.\n\n \n\nThis Directive is amended to include additional helicopters in the applicability listing.\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1236},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":true,"description":"This amendment expands the scope by adding additional helicopter serial numbers to the applicability list, broadening the mandate to cover more aircraft that may have the same safety defect."},"complexity_factors":["Technical aviation terminology (hydraulic servo cylinders, spanner links, time in service)","Reference to external technical document (Bell Alert SB 212-79-16A) without reproducing its contents","Specific serial number applicability requiring cross-referencing against aircraft registration records"],"plain_english_summary":"A safety directive requiring owners/operators of certain Bell 212 helicopters to inspect and rework the spanner link assembly in the hydraulic servo cylinder to prevent interference that could disable the backup hydraulic system. It matters because loss of the redundant system can leave pilots without hydraulic assistance. The work was to be done within 100 flight hours after 31 Oct 1982; this amendment expands the affected serial-number range."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-212-26-amdt-1-hydraulic-servo-cylinder-assembly-spanner-link-assembly-inspection-and-rework","history":"/api/acts/ad-bell-212-26-amdt-1-hydraulic-servo-cylinder-assembly-spanner-link-assembly-inspection-and-rework/history","analysis":"/api/acts/ad-bell-212-26-amdt-1-hydraulic-servo-cylinder-assembly-spanner-link-assembly-inspection-and-rework/analysis","conflicts":"/api/acts/ad-bell-212-26-amdt-1-hydraulic-servo-cylinder-assembly-spanner-link-assembly-inspection-and-rework/conflicts","importantCases":"/api/acts/ad-bell-212-26-amdt-1-hydraulic-servo-cylinder-assembly-spanner-link-assembly-inspection-and-rework/important-cases","documents":"/api/acts/ad-bell-212-26-amdt-1-hydraulic-servo-cylinder-assembly-spanner-link-assembly-inspection-and-rework/documents"}}