ENS 50056

v t e ENS Event
20:30 Apr 23, 2014
Title	Fitness for Duty Report - False Negative Error Occurred on Quality Assurance Test
Event Description	Contrary to the requirements in 10 CFR 26.137(b), a Department of Health and Human Services (DHHS) certified laboratory returned results for a blind specimen that was inconsistent with what was expected. On 04/22/2014, blind specimens from the same lot number were sent to the two contracted DHHS laboratories. On 04/23/2014, one of the labs reported unexpected results while the other laboratory reported the expected results. At approximately 1530 [CDT] on 04/23/2014, the lab report was reviewed by Fitness For Duty Management at Callaway Plant and the inaccurate result was identified. On 04/24/2014, the Medical Review Officer (MRO) contacted Clinical Reference Laboratory (CRL) to discuss the testing discrepancy and directed the lab to retest the specimen. The MRO requested that CRL initiate an investigation to determine the reason for the inaccurate result and provide a report of the results of that investigation within 20 days. 10 CFR 26.719(c)(3), 'Reporting Requirements,' requires that 'if a false negative error occurs on a quality assurance check of validity screening tests, as required in � 26.137(b), the licensee or other entity shall notify the NRC within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after discovery of the error.' The licensee has notified the NRC Resident Inspector.

ENS 50056 +/-
Where
Callaway Missouri (NRC Region 4)
Reporting

10 CFR 26.719
Time - Person (Reporting Time:+17.63 h0.735 days <br />0.105 weeks <br />0.0241 months <br />)
Opened:	Richard Hughey 14:08 Apr 24, 2014
NRC Officer:	Howie Crouch
Last Updated:	Apr 24, 2014
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v • d • e

v t e Emergency Notification System
Callaway with 10 CFR 26.719
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