Junk Plant Pilgrim: Leaking Feedwater Heaters And Another Total Loss Of Offsite Power

That 23 line is interesting. It is piss ass small line and extremely unreliable. But it plays a disproportional role in any violation levels if it stays operational. Of course, if the plant was operational, they would have had another hard trip.

The industry and NRC basically believes a plant at shutdown is more risky than at power. So they might be required to shutdown, the utilities will justify staying at power on it more risky to be shutdown.   

Facility: PILGRIM Region: 1 State: MA Unit: [1] [ ] [ ] RX Type: [1] GE-3 NRC Notified By: MICHAEL HETTWER HQ OPS Officer: DONG HWA PARK	Notification Date: 03/13/2018 Notification Time: 15:54 [ET] Event Date: 03/13/2018 Event Time: 10:00 [EDT] Last Update Date: 03/13/2018
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(v)(B) - POT RHR INOP	Person (Organization): MARC FERDAS (R1DO) JEFFERY GRANT (IRD)

Unit	SCRAM Code	RX CRIT	Initial PWR	Initial RX Mode	Current PWR	Current RX Mode
1	N	N	0	Cold Shutdown	0	Cold Shutdown

Event Text

OFF-SITE POWER UNAVAILABLE DUE TO WINTER STORM "On March 13, 2018 at 1000 hours [EDT], with the reactor in Cold Shutdown condition, both 345kV incoming power lines and 23 kV Shutdown Transformer became unavailable during the Northeast winter storm. Per procedures, the emergency on-site emergency power supplies (Emergency Diesel Generators) were running and providing power to essential systems. In addition, the back-up Diesel Air Compressor was in service and one Reactor Protection System bus was on the back-up power supply prior to the loss. "With both 345kV incoming power lines and 23 kV Shutdown Transformer unavailable, Pilgrim Nuclear Power Station procedures direct a report be made to the NRC per the requirements of Title 10 Code of Federal Regulations 50.72(b)(3)(v), any event that could have prevented the fulfillment of the safety function. No actual loss of safety function has occurred since the on-site emergency power supplies are maintaining the reactor in a safe shutdown condition and removing residual heat. "The loss of incoming power is under investigation. "This event had no impact on the health and/or safety of the public. "The NRC Resident Inspector has been notified."