This supplemental report is being submitted to provide the results of the legal manufacturer's final investigation.The device was returned to olympus for inspection.And the reportable malfunction was confirmed.A review of the device history record found no deviations, that could have caused or contributed to the reported issue.It has been over 8 years, since the subject device was manufactured.Based on the results of the investigation, flow rate display was partly missing, due to defective lighting caused by failure of the front panel led (light-emitting diode).However, olympus could not identify a definitive root cause of the event.Olympus will continue to monitor field performance for this device.
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