The investigation revealed the following: the incident was presumably user related due to a wrong application from the customer site.The customer was performing a water flush from bottle 3 to clean the retort, and while the water was in the retort, another laboratory employee saw the empty bottle and replaced the bottle 3 with reagent alcohol.After the retort was drained, the reagent alcohol backed up in to the lines, air system, and all of the bottles.Then the customer ran the instrument without changing the bottles, and the baskets with the tissues were affected.The field service engineer inspected the instrument and verified the condition at customer site.He drained the condensate bottle and overfull trap bottle of the unit, cleaned the lines leading to trap bottle, disconnected the air lines in rear of system and drained the water from the pump.The field service engineer performed a smart clean on the instrument.Additionally the customer replaced the reagents on the unit and performed a clean on unit after performing a pressure test and a fill drain test.The unit is operating per manufacturers specifications.The customer did state they were recommending a rebiopsy, but this had not yet been performed.
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