Date of event: (b)(6) 2019.Date of report: 07/08/2019.The manufacturer's field service engineer (fse) replaced the blower assembly to address and correct this reported problem.The customer returned blower assembly was tested and no failures were identified.The customer returned sleeve valve was tested and no functional failures were identified.The returned components passed all testing and no errors were generated therefore, the root cause could not be determined.The returned components passed all testing and no errors were generated therefore, the root cause could not be determined.This mdr has been reassessed as reportable after a request from the fda on march 1, 2019 to review complaints from 29 nov 2017 to 29 nov 2018.As this has been reassessed, it will appear to be a late mdr.
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