Alarm history and patient data file review found three new alarms recorded in the freedom driver's eeprom, all 2d fault code alarms which were recorded during eeprom extraction.Visual inspection of internal and external components revealed no abnormalities.During the investigation, the freedom driver failed incoming functional testing for high left driveline peak pressure.Because this type of failure is produced by a defective piston cylinder assembly, a known good piston cylinder assembly was installed in the freedom driver.A functional test was reperformed and the driver passed all sections of the test under these conditions.The failure was replicated during the investigation via functional testing.The root cause of the failed testing is a faulty piston cylinder assembly.Failure occurred during routine service, therefore no impact to patient.This issue will be monitored and trended as part of the customer complaint process.Syncarida has completed its evaluation and is closing this file.(if new or additional information is received in the future, syncarida will file a follow-up mdr.).(b)(4) follow-up report 1.
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