Additional information: h4 device manufacture date was added the device history record (dhr) was reviewed showing no abnormal process conditions were present during the manufacturing of the product that could have led to the reported condition.The dhr review showed that all acceptance criteria inspections per established sampling levels were within acceptable limits during the production process.A sample analysis could not be performed because no photo or sample was available for evaluation.The reported condition could not be confirmed.Based on the present information, and because no sample was received, a root cause cannot be determined.No action plan required at this point.The manufacturing site will continue to monitor customer complaint and feedback notifications.This complaint will be used for tracking and trending purposes.
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