ENS 57194: Difference between revisions

v t e ENS Event
05:59 Jun 27, 2024
Title	Shutdown Required by Technical Specifications
Event Description	The following information was provided by the licensee via email: At 0159 EDT on 6-27-24, DC Cook Unit 2 commenced a controlled shutdown to address identified leakage through 2-QRV-251, CVCS [chemical and volume control system] charging pumps discharge flow control valve, valve packing. The leakage started at 2303 EDT on 6-26-24 and was determined to be greater than the 10 gallons per minute limit per technical specification 3.4.13 allowable leakage. The leakage was determined to not be repairable at power. Per 10CFR 50.72(b)(2) this is a 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> non-emergency report for Technical Specification required shutdown." The NRC Resident Inspector was notified. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: A normal shutdown is expected to be completed by 0900 EDT. There are no radiological releases. Unit 1 was not affected. There is no estimate for the time of the repairs.

ENS 57194 +/-
Where
Cook Michigan (NRC Region 3)
Reporting

10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown
Time - Person (Reporting Time:+-1.48 h-0.0617 days <br />-0.00881 weeks <br />-0.00203 months <br />)
Opened:	Ted Dey 04:30 Jun 27, 2024
NRC Officer:	Natalie Starfish
Last Updated:	Jun 28, 2024
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v • d • e

v t e Emergency Notification System
Cook with 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown
WEEKMONTHYEAR2024-06-27T05:59:00 [Table view]
[ENS list for Cook]

@@ Line 23: / Line 23: @@
 The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
 A normal shutdown is expected to be completed by 0900 EDT. There are no radiological releases.  Unit 1 was not affected.  There is no estimate for the time of the repairs.
-| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2024/20240628en.html#en57194
+| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2024/20240701en.html#en57194
 }}{{unit info
 | Unit = 2

Latest revision as of 07:20, 1 July 2024