ENS 40771

v t e ENS Event
01:30 May 23, 2004
Title	Auxiliary Feedwater System Declared Inoperable Due to Underground Leak
Event Description	There is sufficient reason to believe that the buried auxiliary feedwater piping associated with Unit 2 is degraded and leaking and thus as a conservative measure it is declared inoperable. This operability determination is based on not having a reasonable assurance that the auxiliary feedwater piping can continue to perform its intended function under all design basis events including seismic events. Approximate leakrate is 8 gpm. Makeup is sufficient at this time to maintain desired level in the affected tank. Further efforts to determine the exact leak location are ongoing. This notification is being made pursuant to 10 CFR 50.72(b)(3)(v)(D) for the 8-hour notification of a condition that could have prevented the fulfillment of the safety function of systems or structures that are needed to mitigate the consequences of an accident. Emergency Condensate Storage Tank level was decreasing and water has been detected coming from a conduit in the Safeguard Building. Licensee is in Tech Spec 3.0.1 (30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> to get below 350 degrees F and 450 psig). The NRC Resident Inspector was notified of this event by the licensee. See EN #'s 40770, 40769 & 40768 for Surry Unit 2 related problems.

ENS 40771 +/-
Where
Surry Virginia (NRC Region 2)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Time - Person (Reporting Time:+-3.02 h-0.126 days <br />-0.018 weeks <br />-0.00414 months <br />)
Opened:	James Shell 22:29 May 22, 2004
NRC Officer:	John Mackinnon
Last Updated:	May 22, 2004
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v • d • e

v t e Emergency Notification System
Surry with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2019-11-21T02:44:00 [Table view]
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