19 mars 2019
C’est lors de l’arrêt du réacteur n° 2 pour rechargement que la panne a été découverte sur ce circuit fondamental pour la sécurité du réacteur.
Type : Fukushima I (BWR Mark1) - Puissance : 2 804 MWth - Première divergence : n° 2 : 07/1978
Available in english only
Event Number : 53944
Facility : HATCH - State : GA
Unit : [2] - RX Type : [2] GE-4
Event Date : 03/19/2019 - Event Time : 01:40 [EDT]
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Initial PWR : 1 % Current PWR : 1 %
Event Text
HIGH PRESSURE COOLANT INJECTION SYSTEM INOPERABLE
"At 0140 [EDT] on 03/19/2019, while the unit was at approximately 1% power and 154 psig pressure in MODE 2, it was discovered that Unit 2 High Pressure Coolant Injection (HPCI) was INOPERABLE. HPCI does not have a redundant system, therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v).
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
Unit 2 entered LCO 3.5.1.c for the HPCI being inoperable.
There is no effect on Unit 1.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2019/20190320en.html