Additional narrative: (b)(6).(b)(6).This 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.It was further determined that the motor was defective.The assignable root cause was determined to be due to wear from normal use and servicing.If additional information should become available, a supplemental medwatch report will be submitted accordingly.
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It was reported by (b)(6) that during service and evaluation, it was discovered that the motor seized, was blocked and running rough on the compact air drive device.It was further determined during the pre-repair diagnostics assessment that the device failed for check triggers for forward/reverse mode, check for untrue running, check for excessive noise, check for air leak, check power with test bench, min 110 to 160 watt and for check starting behavior.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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