Wednesday, April 13, 2016

Junk Plant Pilgrim: Two DGs Inop

You would think they would inspect the good DG before they removed they removed the bad one. 130 drops per minute is a big leak. 

Facility: PILGRIM
Region: 1 State: MA
Unit: [1] [ ] [ ]
RX Type: [1] GE-3
NRC Notified By: MIKE MCDONNELL
HQ OPS Officer: JEFF HERRERA
Notification Date: 04/12/2016
Notification Time: 07:47 [ET]
Event Date: 04/12/2016
Event Time: 00:50 [EDT]
Last Update Date: 04/12/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
JOHN ROGGE (R1DO)

UnitSCRAM CodeRX CRITInitial PWRInitial RX ModeCurrent PWRCurrent RX Mode
1NY100Power Operation100Power Operation
Event Text
LOSS OF BOTH EMERGENCY DIESEL GENERATORS

"On April 12, 2016, with the reactor at 100 percent power and the mode switch in RUN, Pilgrim Nuclear Power Station entered an unplanned 24-hour Limiting Condition for Operation (LCO) action statement due to both emergency diesel generators (EDG) being inoperable (Technical Specification 3.5.F.1). At 0050 [EDT] this morning, with EDG B out of service for a planned LCO maintenance window, EDG A was declared inoperable due to a 130 drop per minute leak on a line to a jacket water pressure indicator.

"Repairs to EDG A are underway at this time.

"The following plant equipment has been verified operable: both 345 Kv transmission lines; 23kV transmission line; Station Blackout EDG.

"This condition is reportable to the NRC Staff as an Event or Condition that Could Have prevented Fulfillment of a Safety Function (Mitigate the consequences of an accident) under 10 CFR 50.72(b)(3)(v)(D), and requires an 8-hour notification.

"The licensee has notified the NRC Senior Resident Inspector.

"The licensee will notify the Commonwealth of Massachusetts."

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