A customer in (b)(6) reported their thinprep 5000 processor with autoloader etched a wrong vial id onto a slide.The slides were processed on (b)(6) 2016.Based on the pictures that were obtained the quality of these labels/barcodes have deteriorated compared to last time.It was noted that the barcode in question is very poor in the fact that it has ink bleed and bare patches.The instrument gave no error code for slide id (b)(6).It was confirmed that all faulty slide id's were found and reprocessed, and there was no patient recall or delay in diagnosis as a result.Customer has two different barcodes on vial, advised customer to strike through redundant barcode with black marker.Hologic field service engineer confirmed and reproduced error.Performed preventative maintenance per technical documentation.Instrument operational.Although no patients needed to be recalled as a result of this incident this is a reportable event since the instrument did not perform as intended.
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