8 décembre 2017
Cette vanne défaillante a été isolée sur le réacteur n°2 pour stopper la circulation de fluide à travers elle.
Type : BWR Mark 2- Puissance : 3 515 MWth - Première divergence : 8 / 1989
Available in english only
Event Number : 53108
Facility : LIMERICK - State : PA - Unit : [2]
Type : [2] GE-4
Event Date : 12/08/2017 - Event Time : 13:10 [EST]
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Initial PWR : 100 % Current PWR : 100 %
Event Text
HIGH PRESSURE COOLANT INJECTION INOPERABLE DUE TO A LEAKING CHECK VALVE
"U/2 HPCI [Unit 2/High Pressure Coolant Injection] was declared inoperable due to leak by of the pump discharge check valve after pump shutdown from flow testing. This resulted in cycling of the minimum flow valve. The discharge valve was closed to prevent the continued cycling of the minimum flow valve. This condition was identified during normal surveillance testing."
The licensee notified the NRC Resident Inspector.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2017/20171211en.html