The device history record file was reviewed, and no discrepancy was found according to the condition reported.A sample evaluation could not be performed since no sample nor photos were provided for this complaint.The investigation shall be reopened if a sample is received at a later date.Based on the present information, a possible root cause cannot be determined as the reported issue could not be confirmed nor determined to be related to the manufacturing process.No action plan is deemed required.The current process is running according to product specifications meeting quality acceptance criteria.We will keep monitoring the process for any adverse trends that require immediate attention.
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