This supplemental report is being submitted to provide the results of the legal manufacturer's final investigation.Corrected fields: b5, g2.Additional information added to field d9, h3, h4 and h6.A review of the device history record found no deviations that could have caused or contributed to the reported issue.It has been over 10 years since the subject device was manufactured.The device was returned to olympus for inspection, and the customer's allegation was not confirmed.Based on the results of the investigation, the cause of the scope communication error (b30) occurred due to the contact failure of the scope connector.However, a definitive root cause could not be determined.The following is included in the instructions for use (ifu): never install a lamp that has not been approved by olympus.The use of a nonapproved lamp can cause damage to the light source and ancillary equipment, malfunction or a fire.Three attempts were performed to obtain additional information, but no response was received from the customer.Olympus will continue to monitor field performance for this device.
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