It was reported that errors were occurring during qc, but was able to eventually pass.During a patient biopsy the targets appeared correct, but when the needle was fired it went beyond the target to the other side of the breast.Bruising was noted.Pressure was applied to the area and no further medical intervention was needed.A field engineer was dispatched to the site and it was determined that the zenner diode was weak and needed to be jumped and the breast platform was replaced.Once this was completed the system was working as intended.Per the technologist a follow up call is made to patients the next day for results and she was not informed of any further issues.
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