ENS 54038

v t e ENS Event
13:00 Apr 30, 2019
Title	Technical Specification Violation Due to Using the Wrong Procedure
Event Description	On April 30, 2019 at approximately 0900 EDT at the National Bureau of Standards Test Reactor (NBSR) a Senior Reactor Operator (SRO) was discussing proposed changes to the area radiation monitor system with NBSR Instrumentation and Control personnel. During this discussion, the SRO realized that the surveillance standard for the radiation monitors had changed in September 2018. The Technical Specification 3.7.1(4) states 'The reactor shall not be operated unless: Two area radiation monitors are operable on floors C-100 and C-200'. To verify operability Technical Specification 4.7.1(4)(b) states 'The Area Radiation Monitors shall be channel tested monthly and channel calibrated annually'. The SRO informed the Chief of Reactor Operations (CRO) that they had incorrectly performed the required monthly channel test in December 2018 and January 2019. The channel test was properly performed in November 2018 and February 2019. The Reactor operated between 12/05/2018 and 12/21/2018 and again between 02/05/2019 and 02/15/2019.

ENS 54038 +/-
Where
National Inst Of Standards & Tech Gaithersburg, Maryland (NRC Region 0)
License number:	TR-5
Reporting

10 CFR 50.72(b)(1), 50.54(x) TS Deviation
Time - Person (Reporting Time:+1.28 h0.0533 days <br />0.00762 weeks <br />0.00175 months <br />)
Opened:	Tom Newton 14:17 Apr 30, 2019
NRC Officer:	Jeff Herrera
Last Updated:	Apr 30, 2019
54038 - NRC Website
v • d • e

v t e Emergency Notification System
National Inst Of Standards & Tech with 10 CFR 50.72(b)(1), 50.54(x) TS Deviation
WEEKMONTHYEAR2019-04-30T13:00:00 [Table view]
[ENS list for National Inst Of Standards & Tech]

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