This supplemental report is being submitted to provide additional information.The subject device has not been returned to olympus medical systems corp.(omsc) for evaluation, but was returned to olympus china (ocsm).During the incoming inspection, ocsm found leak in the instrument channel of the device.Omsc reviewed the manufacturing history (dhr) of the subject device and confirmed no irregularity.Omsc investigated the service record for the subject device and confirmed that the bending section has been replaced in august 2020 for the fifth replacement within a year and a half.The exact cause of the reported phenomenon could not be conclusively determined.However, there is the possibility that the reported phenomenon was attributed to the damage of the angulation mechanism due to rust.
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