ENS 46404

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v t e ENS Event
16:15 Nov 8, 2010
Title	Agreement State Report - Process Gauge Shutter Could Not Be Locked Closed
Event Description	The following information was reported via fax by the State of Nebraska The licensee uses fixed industrial gauges for measuring densities in flyash hoppers at the Stations precipitator building. The industrial fixed gauges contain a Cesium 137 sealed source. The Cesium 137 sources were originally installed in April, 1984 and at the time contained 50 milliCuries per source. The Sources were manufactured and installed by Kay Ray Inc. The gauge is Model No. 7062BP, and housing serial number 17666. The source capsule manufacture was Amersham model No. CDC 800 and K-R Ref. Number serial number 15607-V. The maintenance group at North Omaha wanted to replace bags in the Unit 5 Transfer House Tertiary Collector. The Shift Supervisor and Operations was notified of the "Tag-out request" as well as the Laboratory. The first step of the "tag-out" is to secure the Transfer House level detectors, the sealed radiation sources. There are two sources in the Transfer House. Both source shutters closed properly, as indicated by surveys. The keys for the interlock Mechanism for the Primary Collector Tank could not be turned to lock the handle in the Closed Position. (Reference: Attachment 2 of Registry for the Kay-Ray Fixed Gauge Model 7062BP). The shutters for both sources remain operable, and can be opened and closed. This 'event' happened at 10:15 am. No personnel were exposed to radiation during this event.

ENS 46404 +/-
Where
Omaha Public Power District Omaha, Nebraska (NRC Region 4)
License number:	01-39-04
Organization:	Ne Div Of Radioactive Materials
Reporting

Agreement State
Time - Person (Reporting Time:+1.73 h0.0721 days <br />0.0103 weeks <br />0.00237 months <br />)
Opened:	Wayne Golsdorf 17:59 Nov 8, 2010
NRC Officer:	John Knoke
Last Updated:	Nov 8, 2010
46404 - NRC Website Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Omaha Public Power District with Agreement State
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[ENS list for Omaha Public Power District]

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