Turkey Point Nuclear Generating Unit Nos. 3 and 4 - Issuance of Amendments Regarding Technical Specifications Changes to Address Non-Conservative Actions for Containment and Control Room Ventilation Functions (EPID L-2017-LLA-0425)
Hope Creek Generating Station - Issuance of Amendment No. 213 Regarding Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control (EPID L-2017-LLA-0352)
South Texas Project, Units 1 & 2 - License Amendment Request to Revise Technical Specifications to Adopt TSTF-522, Revise Ventilation System Surveillance Requirements to Operate for 10 Hours Per Month, Using the Consolidated Line Item ...
EN Revision Text: CONTROL ROOM EMERGENCY FILTRATION SYSTEM DECLARED INOPERABLE
On June 26, 2018, at 1630 CDT, the Control Room Emergency Filtration System (CREFS) was declared inoperable when Main Control Room Supply Fan SF-C-1B was discovered to have elevated vibrations that brought into question the ability to meet its mission time.
CREFS is a single train safety system. Per 10 CFR 50.72(b)(3)(v)(D), an 8 hour report is required due to the fact that at the time of discovery this condition could have prevented the fulfillment of a safety function of an SSC (System Structure or Component) that is required to mitigate the consequences of an accident.
The licensee has notified the NRC Senior Resident Inspector.
* * RETRACTION FROM THOMAS FORLAND TO VINCE KLCO ON 8/13/18 AT 1024 EDT * * *
The following retraction was received from Cooper Nuclear Station (CNS) via facsimile and phone call:
CNS is retracting the 8-hour non-emergency notification made on June 26, 2018 at 1630 CDT
(EN# 53476). Subsequent evaluation concluded that overall vibration levels were not at a level that would impact the ability of the Main Control Room Supply Fan SF-C-18 to perform its safety function for its required mission time and the CREFS therefore, was operable.
The NRC Senior Resident Inspector has been notified.
H. B. Robinson Steam Electric Plant, Unit No. 2, Issuance of Amendment 258 Regarding Request to Revise Technical Specification Surveillance Requirement Frequencies to Support 24-Month Fuel Cycles (CAC No. MF9544; EPID L-2017-LLA-0206)