ENS 47066: Difference between revisions

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Revision as of 21:06, 1 March 2018

v t e ENS Event
16:00 May 1, 2011
Title	Previous Inoperability of Criticality Accident Alarm System Warning Circuit Not Identified
Event Description	As part of the corrective actions for the Criticality Accident Alarm System (CAAS) events reported on 7/13/11 (EN#47047) and 7/15/11 (EN#47061), GNF-A is performing an investigation into the cause of the delayed audible alarm actuation. The investigation has determined that this delay existed at the time of the May and June 2011 functional tests and was not adequately identified and thus not reported. The response time to activate the horns did not meet the design requirement for CAAS. These events are being reported pursuant to the requirements of 10CFR70.50 (b)(2). The licensee states that the delay in the alarm actuation existed during surveillance testing in May and June of 2011 but the delay was not recognized at the time. This condition rendered the system inoperable since May 2011. The licensee has notified R2 (Sykes) and will notify state and local authorities. R2DO (Freeman) notified.

ENS 47066 +/-
Where
Global Nuclear Fuel Wilmington, North Carolina (NRC Region 2)
License number:	Snm-1097
Reporting

10 CFR 70.50(b)(2)
Time - Person (Reporting Time:+1850.43 h77.101 days <br />11.014 weeks <br />2.535 months <br />)
Opened:	Phillip Ollis 18:26 Jul 17, 2011
NRC Officer:	Bill Huffman
Last Updated:	Jul 17, 2011
47066 - 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":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 47066\u003C/a\u003E - \u003Ca href=\"/Global_Nuclear_Fuel\" title=\"Global Nuclear Fuel\"\u003EGlobal Nuclear Fuel\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EPrevious Inoperability of Criticality Accident Alarm System Warning Circuit Not Identified\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 47066 - Global Nuclear Fuel\n","link":"","lat":34.320930555555556,"lon":-77.92285,"icon":""}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Global Nuclear Fuel with 10 CFR 70.50(b)(2)
WEEKMONTHYEAR2014-01-22T18:15:00 [Table view]
[ENS list for Global Nuclear Fuel]

@@ Line 16: / Line 16: @@
 | event date = 05/01/2011 12:00 EDT
 | last update date = 07/17/2011
-| title = Previous Inoperability Of Criticality Accident Alarm System Warning Circuit Not Identified
+| title = Previous Inoperability of Criticality Accident Alarm System Warning Circuit Not Identified
 | event text = As part of the corrective actions for the Criticality Accident Alarm System (CAAS) events reported on 7/13/11 (EN #47047) and 7/15/11 (EN #47061), GNF-A is performing an investigation into the cause of the delayed audible alarm actuation. The investigation has determined that this delay existed at the time of the May and June 2011 functional tests and was not adequately identified and thus not reported. The response time to activate the horns did not meet the design requirement for CAAS. These events are being reported pursuant to the requirements of 10CFR70.50 (b)(2).
 The licensee states that the delay in the alarm actuation existed during surveillance testing in May and June of 2011 but the delay was not recognized at the time.  This condition rendered the system inoperable since May 2011.