ENS 45204: Difference between revisions
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| event date = 07/13/2009 03:03 EDT | | event date = 07/13/2009 03:03 EDT | ||
| last update date = 07/14/2009 | | last update date = 07/14/2009 | ||
| title = Degraded Condition Due | | title = Degraded Condition Due to Rcs Pressure Boundary Leak | ||
| event text = At 0303 EDT on July 13, 2009, while in Hot Standby Mode 3, operators at Millstone Power Station Unit 2 identified a leak in the vicinity of the "A" reactor coolant pump (RCP). The containment sump leakage trend indicated a leak rate of 0.03 gallons per minute. At 0540 EDT, chemical analysis confirmed the leakage to be from the reactor coolant system. Follow up inspections are in progress to determine the source of the pressure boundary leak. Operators have cooled the plant to Cold Shutdown Mode 5 in accordance with plant Technical Specification 3.4.6.2, Reactor Coolant Operational Leakage. | | event text = At 0303 EDT on July 13, 2009, while in Hot Standby Mode 3, operators at Millstone Power Station Unit 2 identified a leak in the vicinity of the "A" reactor coolant pump (RCP). The containment sump leakage trend indicated a leak rate of 0.03 gallons per minute. At 0540 EDT, chemical analysis confirmed the leakage to be from the reactor coolant system. Follow up inspections are in progress to determine the source of the pressure boundary leak. Operators have cooled the plant to Cold Shutdown Mode 5 in accordance with plant Technical Specification 3.4.6.2, Reactor Coolant Operational Leakage. | ||
The plant entered Cold Shutdown Mode 5 at 1601 EDT on July 13, 2009. | The plant entered Cold Shutdown Mode 5 at 1601 EDT on July 13, 2009. | ||
Latest revision as of 22:11, 1 March 2018
| Where | |
|---|---|
Millstone  Connecticut (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
| Time - Person (Reporting Time:+26.18 h1.091 days <br />0.156 weeks <br />0.0359 months <br />) | |
| Opened: | Morris Sanders 09:14 Jul 14, 2009 |
| NRC Officer: | Charles Teal |
| Last Updated: | Jul 14, 2009 |
| 45204 - NRC Website
| |