ENS 50630: Difference between revisions
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| event date = 11/20/2014 10:22 CST | | event date = 11/20/2014 10:22 CST | ||
| last update date = 11/20/2014 | | last update date = 11/20/2014 | ||
| title = Containment Declared Inoperable Due | | title = Containment Declared Inoperable Due to Containment Fan Coil Leak | ||
| event text = At 1022 CST on November 20, 2014, a cooling water leak of approximately 20 to 30 drops per minute was identified on the 14 Containment Fan Coil Unit NW side lower face gasket. Unit 1 Containment was declared inoperable, which required entry into Technical Specifications (TS) LCO 3.6.1 Condition A, containment inoperable, applicable in MODES 1, 2, 3, and 4. Immediate actions were taken to isolate the Fan Coil Unit within 1 hour from the initial identification of the leak. 14 Containment Fan Coil Unit was isolated and Containment was declared operable and TS 3.6.1 Condition A was exited at 1109 CST. A Work Request (WR) was initiated and 14 Containment Fan Coil Unit has been restored to an operable condition. | | event text = At 1022 CST on November 20, 2014, a cooling water leak of approximately 20 to 30 drops per minute was identified on the 14 Containment Fan Coil Unit NW side lower face gasket. Unit 1 Containment was declared inoperable, which required entry into Technical Specifications (TS) LCO 3.6.1 Condition A, containment inoperable, applicable in MODES 1, 2, 3, and 4. Immediate actions were taken to isolate the Fan Coil Unit within 1 hour from the initial identification of the leak. 14 Containment Fan Coil Unit was isolated and Containment was declared operable and TS 3.6.1 Condition A was exited at 1109 CST. A Work Request (WR) was initiated and 14 Containment Fan Coil Unit has been restored to an operable condition. | ||
This condition is reportable under 10 CFR 50.72(b)(3)(v)(C) as an event or condition that could have prevented fulfillment of the safety function of structures or systems that are needed to control the release of radioactive material. | This condition is reportable under 10 CFR 50.72(b)(3)(v)(C) as an event or condition that could have prevented fulfillment of the safety function of structures or systems that are needed to control the release of radioactive material. | ||
Latest revision as of 20:49, 1 March 2018
| Where | |
|---|---|
Prairie Island  Minnesota (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |
| Time - Person (Reporting Time:+0.12 h0.005 days <br />7.142857e-4 weeks <br />1.64376e-4 months <br />) | |
| Opened: | Nathan Bibus 16:29 Nov 20, 2014 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | Nov 20, 2014 |
| 50630 - NRC Website
| |
Prairie Island with 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |