ENS 44385
From kanterella
Jump to navigation
Jump to search
ENS Event | |
|---|---|
00:29 Aug 6, 2008 | |
| Title | Tech Spec Required Shutdown Due to Excessive Unidentified Leakage |
| Event Description | On August 5, 2008, a planned shutdown was in progress to repair a control rod drive mechanism due to excessive leakage (within Tech Spec identified leakage limits). During the shutdown, the site experienced excessive unidentified leakage of approximately four gallons per minute for short periods following charging pump starts, due to leakage past the letdown relief valve. [this first occurred at 1629] As a result of the plant shutdown, and not being in a steady state condition, PCS leakage is unable to be definitively determined. Limiting Condition of Operation 3.4.13 was entered at 1629 hrs. The plant was in Mode 3 at 1955 hrs. The Tech Spec requirement is to restore leakage to within limits within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. If not within limits within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, be in Mode 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> (August 6, 2008 at 0229 hours0.00265 days <br />0.0636 hours <br />3.786376e-4 weeks <br />8.71345e-5 months <br />) and be in Mode 5 within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> (August 7, 2008 at 0829 hrs). This event is being reported as a 4-hour non-emergency report in accordance with 10 CFR 50.72(b)(2)(i), Tech Spec required shutdown.
The licensee will notify the NRC Resident Inspector. |
| Where | |
|---|---|
Palisades  Michigan (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-2.03 h-0.0846 days <br />-0.0121 weeks <br />-0.00278 months <br />) | |
| Opened: | Barb Dotson 22:27 Aug 5, 2008 |
| NRC Officer: | Jason Kozal |
| Last Updated: | Aug 5, 2008 |
| 44385 - 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 44385\u003C/a\u003E - \u003Ca href=\"/Palisades\" title=\"Palisades\"\u003EPalisades\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ETech Spec Required Shutdown Due to Excessive Unidentified Leakage\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 44385 - Palisades\n","link":"","lat":42.32339722222222,"lon":-86.31451666666666,"icon":"/w/images/7/79/Entergy_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (96 %) |
| After | Hot Standby (0 %) |
WEEKMONTHYEARENS 490022013-05-05T05:12:0005 May 2013 05:12:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Shutdown - Safety Injection Refueling Water Tank Declared Inoperable Due to Leak ENS 487582013-02-15T18:00:00015 February 2013 18:00:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Component Cooling Water Train Out of Service ENS 484782012-11-04T16:30:0004 November 2012 16:30:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Secondary Side Steam Leak ENS 480182012-06-12T18:56:00012 June 2012 18:56:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown ENS 443852008-08-06T00:29:0006 August 2008 00:29:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Tech Spec Required Shutdown Due to Excessive Unidentified Leakage ENS 429542006-11-01T23:05:0001 November 2006 23:05:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Unit Shutdown Required Due to Service Water Leak Involving a Containment Air Cooler ENS 424622006-03-29T17:15:00029 March 2006 17:15:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Hpsi Inoperability 2013-05-05T05:12:00 | |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_44385&oldid=426299"