ENS 49758: Difference between revisions

v t e ENS Event
01:56 Jan 23, 2014
Title	Loss of Secondary Containment Differential Pressure
Event Description	A spurious closure of a Secondary Containment isolation damper caused a trip of the Fuel Building ventilation system and a loss of Secondary Containment differential pressure. Secondary Containment differential pressure exceeded -0.25 inches of water vacuum rendering Secondary Containment inoperable between the time of 1956 and 2003 [CST]. The damper re-opened, fuel building ventilation was restarted and Secondary Containment differential pressure was restored to normal. This event is reportable under 10CFR50.72(b)(3)(v)c. The Licensee will be notifying the NRC Resident Inspector". Investigation for the spurious closure of a Secondary Containment isolation damper is in progress.

ENS 49758 +/-
Where
Clinton Illinois (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
LER:	05000461/LER-2014-001
Time - Person (Reporting Time:+-2.33 h-0.0971 days <br />-0.0139 weeks <br />-0.00319 months <br />)
Opened:	Joe Lizewski 23:36 Jan 22, 2014
NRC Officer:	Jeff Rotton
Last Updated:	Jan 22, 2014
49758 - 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 49758\u003C/a\u003E - \u003Ca href=\"/Clinton\" title=\"Clinton\"\u003EClinton\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ELoss of Secondary Containment Differential Pressure\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 49758 - Clinton\n","link":"","lat":40.17286111111111,"lon":-88.8332,"icon":"/w/images/b/be/Constellation_icon.png"}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Clinton with 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
WEEKMONTHYEAR2018-03-30T18:05:00 [Table view]
[ENS list for Clinton]

@@ Line 16: / Line 16: @@
 | event date = 01/22/2014 19:56 CST
 | last update date = 01/22/2014
-| title = Loss Of Secondary Containment Differential Pressure
+| title = Loss of Secondary Containment Differential Pressure
 | event text = A spurious closure of a Secondary Containment isolation damper caused a trip of the Fuel Building ventilation system and a loss of Secondary Containment differential pressure.  Secondary Containment differential pressure exceeded -0.25 inches of water vacuum rendering Secondary Containment inoperable between the time of 1956 and 2003 [CST].  The damper re-opened, fuel building ventilation was restarted and Secondary Containment differential pressure was restored to normal.  This event is reportable under 10CFR50.72(b)(3)(v)c.
 The Licensee will be notifying the NRC Resident Inspector".

Latest revision as of 21:51, 1 March 2018