The united states of america customer reported "the in-run control was lighter than archival runs.The standard control was not affected.The test slides appeared to be ok but without proper reactivity in the in-run control there is only 1 recourse- to repeat the entire set.The repeat run was successful on a different platform." the field service engineer (fse) serviced the instrument and found the syringe and stopcock were both crystalized in buffer salts due to leaking at these points.The fse replaced the syringe and stopcock which resolved this malfunction.The customer was able to complete staining with another instrument.The instrument is fully operational, within specification, and ready for use.Diagnostics were not altered.There was no direct or indirect patient harm or user harm reported.
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