(b)(6).(b)(4).The device was returned for service; however, did not meet manufacturing specifications during pre-repair assessment.Reliability engineering evaluated the device and the reported condition was confirmed.The assignable root cause was determined to be due to improper maintenance, which is user error/misuse/abuse.If additional information should become available, a supplemental medwatch report will be sent accordingly.
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It was reported by (b)(6) that during service and evaluation, it was observed that the motor on the air oscillator device was blocked, seized and rough running.It was further noted that the device failed pre-test for immediate stop, excessive noise, air leak, frequency, starting behavior and performance.It was noted in the service order that the device did not work.This event did not occur during surgery.There was no patient involvement.There were no reports of injuries, medical intervention or prolonged hospitalization.The exact date of this event was unknown.All available information has been disclosed.If additional information should become available, a supplemental medwatch report will be submitted accordingly.
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