ENS 49196

v t e ENS Event
20:52 Jul 15, 2013
Title	Salt Service Water System Declared Inoperable
Event Description	On Tuesday, July 16, 2013 at 1652 [EDT], with the reactor at 100% core thermal power (CTP) the Pilgrim Nuclear Power Station (PNPS) entered a 24-hour shutdown Limiting Condition for Operation (LCO) for Salt Service Water (SSW) inlet temperature exceeding the Technical Specification (TS) limit in TS 3.5.B.4. The LCO was subsequently exited at 1830 hours0.0212 days <br />0.508 hours <br />0.00303 weeks <br />6.96315e-4 months <br /> when the temperature of SSW trended to below the TS limit. Under certain accident conditions the SSW system is required to provide cooling water to the Reactor Building Closed Cooling Water (RBCCW) system heat exchanger. When the inlet temperature to this supplied load exceeds the 75 [degrees] F limit established in the TS, the SSW system is declared inoperable until the temperature trends below this value. This condition existed for approximately 1-1/2 hours and the SSW system was declared operable and the LCO exited. A maximum temperature of 75.3 [degrees] F was recorded during this period. The SSW temperature is being closely monitored and trended on a continuous basis. This event has no impact on the health and safety of the public. The licensee has notified the NRC Senior Resident Inspector. SSW temperature varies with tidal movement.

ENS 49196 +/-
Where
Pilgrim Massachusetts (NRC Region 1)
Reporting

10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
LER:	05000293/LER-2013-007
Time - Person (Reporting Time:+26.97 h1.124 days <br />0.161 weeks <br />0.0369 months <br />)
Opened:	Stan Paul 23:50 Jul 16, 2013
NRC Officer:	John Shoemaker
Last Updated:	Jul 17, 2013
49196 - NRC Website
v • d • e

v t e Emergency Notification System
Pilgrim with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2019-01-08T05:00:00 [Table view]
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