This complaint has been recorded under (b)(4).Review of the most recent repair record determined the unit was found to have an erratic motor speed, was out of calibration, and the control bar position was not correct.The needle bearing, reciprocating arm, gasket, swivel, shaft bearings, sleeve bearings, motor, seals, machined head, pin, and screws were replaced and resolved the reported issue.It was noted that the device has not been returned for annual preventative maintenance.Review of the device history record identified no deviations or anomalies during manufacturing.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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