This event has been recorded by zimmer biomet under (b)(4).This medwatch is being filed to relay additional information.The following sections were updated/corrected: b4, d4, d10, e1, g4, g7, h2, h3, h4, h6, h10 conclusion summary: on december 10, 2018, it was reported that the device had intermittent/no power.The customer returned an electric dermatome device, serial number (b)(4), for evaluation.The device history record (dhr) and previous repair report reviewed noted no related non-conformances, requests for deviation, change notices or any other issues with manufacturing or with the device.The dhr and previous repair report review also found that all verifications, inspections and tests were successfully completed.Zimmer biomet (b)(6) has previously repaired/evaluated electric dermatome serial number (b)(4) three times as documented in the repair reports in livelink.The last repair was august 21, 2017 where it was reported that the motor runs slow at power up and stalls under load and the motor, ball bearing, spring seal, external ring, set screw, handpiece switch, insulator and harness assembly plug were replaced.This is not a related issue.Product review of the electric dermatome by zimmer biomet (b)(6) on december 24, 2018 revealed that the device operated below motor speed specifications.Repair of the electric dermatome was performed by zimmer biomet (b)(6) on december 24, 2018 which included replacement of the motor, handpiece switch, bearing pack, o-ring, seal and reciprocating arm.Electric dermatome, serial number (b)(4), was then tested and functioned properly.It was repaired, inspected and tested.The reported event was confirmed since during the product review by zimmer biomet taiwan it was noted that the device operated below motor speed specifications.The root cause of the reported event could not be specifically determined with the information that was provided.During the product review by zimmer biomet taiwan it was noted that the device operated below motor speed specifications.It is unknown with the information that was provided how this occurred.The investigation was based on the information that was provided initially and any information that was obtained throughout the follow-up process.
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