Customer should not have run patient samples when aqc was turned off on the instrument.Customer confirmed that they did not see any deviation in results.Customer was aware of the security setting features to prevent the operator from turning off aqc.Siemens published a customer bulletin on (b)(6) 2014 which states that when an operator disables the automatic qc option, and then fails to reselect and save the aqc option in the setup, no qc will be run automatically, and there are no indications on the analyzer display to notify the operator that the automatic qc has been disabled.A copy of customer bulletin has been provided to the customer.The event had occurred due to an operator error.
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