ENS 51143

v t e ENS Event
06:00 Jun 10, 2015
Title	Density Gauge Shutter Stuck Open
Event Description	The gauge is a Kay-Ray Model 7063P, serial number 8289 with a nominal source of 1 Curie of Cesium 137. The gauge is used for lime slurry density measurements in the Unit 1 Scrubber. The malfunctioning shutter was discovered on June 6, 2015 during semiannual shutter checks as required by the license. The checks were completed today, and [the Radiation Safety Officer (RSO)] became aware of the issue as [the RSO] reviewed the documentation. Independent verification of the malfunction was made, it was found to not close. The cause of the malfunction is not known at this time. The gauge is located approximately sixteen feet above the ground level and presents no unusual risk to plant personnel. No maintenance activities will be conducted on the pipe or elbow the gauge is attached to until the shutter has been repaired. All plant personnel have been notified of the issue and the requisite restriction. [The RSO] contacted a properly licensed contractor to arrange for the repair to the shutter. This gauge is normally open during plant operation.

ENS 51143 +/-
Where
Basin Electric Power Cooperative Wheatland, Wyoming (NRC Region 4)
License number:	33-18224-01
Organization:	Basin Electric Power Cooperative
Reporting

10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure
Time - Person (Reporting Time:+8 h0.333 days <br />0.0476 weeks <br />0.011 months <br />)
Opened:	David Cummings 14:00 Jun 10, 2015
NRC Officer:	Mark Abramovitz
Last Updated:	Jun 10, 2015
51143 - NRC Website
v • d • e

v t e Emergency Notification System
Basin Electric Power Cooperative with 10 CFR 30.50(b)(2)
WEEKMONTHYEAR2015-06-10T06:00:00 [Table view]
[ENS list for Basin Electric Power Cooperative]

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