ENS Event | |
|---|---|
01:42 Dec 10, 2016 | |
| Title | Technical Specification Required Shutdown |
| Event Description | On December 09, 2016 at 1734 EST, U2 Train-A NSCW [Nuclear Service Cooling Water] Transfer Pump #8 tripped during Return To Service Surveillance testing for Train-B NSCW Transfer pump #7. Technical Spec 3.7.9 Condition E entered at 1734 with Required Actions to be in M3 [mode 3, Hot Standby] in 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> AND M4 [mode 4, Hot Shutdown] in 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. A unit shutdown was commenced at 2042 EST [as a conservative measure] to comply with TS 3.7.9 Condition E.
At 1937, U2 B-train NSCW Transfer Pump #7 was declared operable and TS 3.7.9 Condition E was exited. The plant is currently raising power to 100%. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Vogtle  Georgia (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-1.93 h-0.0804 days <br />-0.0115 weeks <br />-0.00264 months <br />) | |
| Opened: | Matt Horn 23:46 Dec 9, 2016 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | Dec 10, 2016 |
| 52423 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (82 %) |
WEEKMONTHYEARENS 524232016-12-10T01:42:00010 December 2016 01:42:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown ENS 424342006-03-20T18:00:00020 March 2006 18:00:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Plant Shutdown Due to Rcs Pressure Boundary Leakage ENS 423092006-02-04T02:24:0004 February 2006 02:24:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Identified Rcs Pressure Boundary Leakage ENS 421942005-12-09T20:44:0009 December 2005 20:44:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Rcs Pressure Boundary Leakage Identified 2016-12-10T01:42:00 | |