(b)(4) product usage when the alleged issue/event was detected is unknown.A visual, functional and dimensional inspection of the product involved in the complaint could not be conducted since the product was not returned.The device history record investigation did not show issues related to complaint.A document assessment (fmea) was conducted and no changes required.Corrective actions cannot be established since it is necessary to receive the physical sample to perform a proper investigation and confirm the alleged defect.At this time since the sample is not available it is not possible to determine the source of the defect reported.Customer complaint cannot be confirmed due to the lack of the device sample to perform a proper investigation and determine the root cause.If the device sample becomes available at a later date, this complaint will be updated accordingly.Will continue to monitor and trend of similar complaints.
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(b)(4).The sample was returned for evaluation.A visual exam was performed and it was observed that the wire (power source) was out of place.Functional testing was performed and the unit passed the tests.A current test could not be conducted as an open circuit was detected and the unit did not heat up.It is possible that the damage was due to overheating of the unit.Based on the investigation performed, the reported complaint was confirmed.Although the complaint was confirmed, a root cause could not be determined.All units are 100% tested at the manufacturing facility; therefore, a defect of this type would be detected prior to release.A conclusion code could not be chosen as the complaint was confirmed; however, a root cause was not established.
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