The customer reported that the freedom driver sounds like there are loose parts on the inside of the device.The customer also reported that the patient was subsequently switched to the backup freedom driver.There was no reported adverse patient impact.The freedom driver was returned to syncardia for evaluation.Visual inspection of the external components of the driver revealed no abnormalities.No loose parts were found in the driver.No new electronic data fault alarms results were extracted from the driver, and the customer did not report any fault alarms.The driver in "as received" condition passed all required functional testing requirements with no anomalies or alarms.There was no evidence of loose parts during operation of the driver.There was no evidence of a device malfunction, and the driver continued to perform its life-sustaining functions during failure investigation testing.Risk to the patient was low because the driver continued to perform its life-sustaining functions.The driver was serviced which included the replacement of the main printed circuit board assembly (pcba) and the following components per days of use: speaker pcba, piston and cylinder assembly (pca), motor/gearbox assembly and motor controller pcbas, before being placed into finished goods.This issue will continue to be monitored and trended as part of the customer experience process.Syncardia has completed its evaluation of this complaint and is closing this file.
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