ENS 44581
From kanterella
Jump to navigation
Jump to search
ENS Event | |
---|---|
15:25 Oct 18, 2008 | |
Title | Both Boron Injection Tank Inlet Valves Inoperable. |
Event Description | {{#Wiki_filter:At 11:25 on 10/18/08 it was identified that 2-SI-MOV-2867A and 2-SI�MOV-2867B, Boron Injection Tank (BIT) Inlet valves were both inoperable. This resulted In less than 100% of the equivalent to a single operable ECCS train being available (TS 3.5.2.C).
2-SI-MOV-2867A was made inoperable on 10/17/08 at 23:26 for troubleshooting. Subsequently 2-SI-MOV-2867B became inoperable on 10/18/08 at 03:26 because its emergency power supply was inoperable for maintenance. At that time TS 3.0.3 was applicable with 13 hours to reach MODE 4 and 37 hours to reach MODE 5. On 10/18/08 at 12:05 2-SI-MOV-2867A was made available and TS 3.0.3 action was cleared. The emergency power supply for 2-SI-MOV-2867B was made operable on 10/18/08 at 13:35. NRC Resident Inspector will be notified. }} |
Where | |
---|---|
North Anna ![]() Virginia (NRC Region 2) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
Time - Person (Reporting Time:+1.3 h0.0542 days <br />0.00774 weeks <br />0.00178 months <br />) | |
Opened: | Don Taylor 16:43 Oct 18, 2008 |
NRC Officer: | Donald Norwood |
Last Updated: | Oct 18, 2008 |
44581 - 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 44581\u003C/a\u003E - \u003Ca href=\"/North_Anna\" title=\"North Anna\"\u003ENorth Anna\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBoth Boron Injection Tank Inlet Valves Inoperable.\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 44581 - North Anna\n","link":"","lat":38.06055555555555,"lon":-77.78944444444444,"icon":"/w/images/b/b0/Dominion_icon.png"}],"imageoverlays":null} | |
Unit 2 | |
---|---|
Reactor critical | Not Critical |
Scram | No |
Before | Hot Standby (0 %) |
After | Hot Standby (0 %) |
North Anna ![]() | |
WEEKMONTHYEARENS 514602015-10-08T01:47:0008 October 2015 01:47:00
[Table view]10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition High Energy Line Break Door Found Unlatched ENS 506662014-12-10T18:44:00010 December 2014 18:44:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Inadvertent Loss of Vital Indication During Maintenance ENS 495712013-11-21T21:41:00021 November 2013 21:41:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Low Casing Cooling System Tank Level Potentially Causes Loss of Npsh to Outside Recirculation Spray Pumps ENS 445812008-10-18T15:25:00018 October 2008 15:25:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Both Boron Injection Tank Inlet Valves Inoperable. ENS 407392004-05-10T00:05:00010 May 2004 00:05:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Both Unit 2 Emergency Diesels Declared Inoperable Due to Shims/Supports Found to Be Either Missing or Not Properly Fastened. 2015-10-08T01:47:00 | |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_44581&oldid=89774"