The device was evaluated at olympus (b)(4).(b)(4) checked the device and duplicated the reported phenomenon.As a result of the evaluation, the following was confirmed.-the front panel was flickering due to a malfunction of the filter turret.-the device has not been repaired in the last year.The exact cause of the reported event could not be conclusively determined.However, based on the following investigation results, the reported event may have been caused by the filter turret failure.The cause of the filter turret failure could not be determined.-(b)(4) confirmed that the front panel flashed during the evaluation and determined that it was caused by the filter turret failure.-omsc reviewed the manufacturing history and confirmed that there were no manufacturing abnormalities or corrections.Device history record (dhr) review indicates that the product was manufactured and tested in accordance with all applicable procedures and met all final product release criteria.If additional information becomes available, this report will be supplemented.
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