Review of the most recent repair record determined the rpms were in specification but erratic, the switch was stuck, the control bar was in the correction position, the calibration was in at all readings and the head had some damage.The machine head, switch, motor, plug harness, bearings, screws and other parts were replaced and resolved the reported issue.Dhr was reviewed and no discrepancies related to the reported event were found.A definitive root cause cannot be determined.The event is confirmed.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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