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Event Notification Report for January 5, 2018

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
01/04/2018 - 01/05/2018

** EVENT NUMBERS **


53138 53147

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Agreement State Event Number: 53138
Rep Org: WISCONSIN RADIATION PROTECTION
Licensee: WHEATON FRANCISCAN HEALTHCARE-ELMBROOK MEMORIAL
Region: 3
City: BROOKFIELD State: WI
County:
License #: 079-1092-01
Agreement: Y
Docket:
NRC Notified By: MEGAN SHOBER
HQ OPS Officer: STEVE SANDIN
Notification Date: 12/28/2017
Notification Time: 12:50 [ET]
Event Date: 11/01/2017
Event Time: [CST]
Last Update Date: 12/28/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
RICHARD SKOKOWSKI (R3DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - TOTAL DOSE DELIVERED DIFFERED FROM PRESCRIBED DOSE BY GREATER THAN 20%

The following information was received from the State of Wisconsin via email:

"On December 28, 2017, the Wisconsin Department of Health Services (DHS) received notice that the licensee identified a prostate manual brachytherapy procedure where the total dose delivered differed from the prescribed dose by 20% or more. The implant occurred in November 2017 and post-implant dosimetric analysis was performed on December 27, 2017. The prescribed dose was 110 Gy; the dose delivered to the treatment site (D90) was 56.5% of the intended dose.

"DHS inspectors will investigate this medical event.

"Event Report ID No.: WI170023"

The licensee will compensate for the underdose with subsequent scheduled beam therapy.

A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.

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Power Reactor Event Number: 53147
Facility: PILGRIM
Region: 1 State: MA
Unit: [1] [ ] [ ]
RX Type: [1] GE-3
NRC Notified By: MICHAEL MCDONNELL
HQ OPS Officer: DAVID AIRD
Notification Date: 01/04/2018
Notification Time: 17:57 [ET]
Event Date: 01/04/2018
Event Time: 14:10 [EST]
Last Update Date: 01/04/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
DAVE WERKHEISER (R1DO)
MICHAEL F. KING (NRR)
WILLIAM GOTT (IRD)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 M/R Y 81 Power Operation 0 Hot Shutdown

Event Text

MANUAL REACTOR SCRAM DUE TO PARTIAL LOSS OF OFFSITE POWER DURING WINTER STORM

"On January 4, 2018, at 1410 hours EST, with the reactor at approximately 100 percent power and steady state conditions, the winter storm across the Northeast caused the loss of offsite 345 kV Line 342. Reactor power was reduced to approximately 81 percent and a procedurally required manual reactor scram was initiated. All control rods fully inserted.

"As a result of the reactor scram, indicated reactor water level decreased, as expected, to less than +12 inches resulting in automatic actuation of the Primary Containment Isolation Systems for Group II - Primary Containment Isolation and Reactor Building Isolation System, and Group VI - Reactor Water Cleanup System.

"Reactor Water Level was restored to the normal operating band. The Primary Containment Isolation Systems have been reset. The Reactor Protection System signal has been reset.

"Following the reactor scram, the non-safety related Control Rod Drive Pump "B" tripped on low suction pressure. Control Rod Drive Pump "A" was placed in service. All other systems operated as expected, in accordance with design.

"This event is reportable per the requirements of Title 10, Code of Federal Regulations (CFR) 50.72 (b)(2)(iv)(B) - "RPS Actuation" and 10 CFR 50.72 (b)(3)(iv)(A) - "Specified System Actuation."

"This event had no impact on the health and/or safety of the public.

"The NRC Resident Inspector has been notified."

The main steam isolation valves are open with decay heat being removed via steam to the main condenser.

Offsite power is still available from 345kV line 355. As a contingency, emergency diesel generators are running and powering safety busses per licensee procedure.

The licensee notified the Commonwealth of Massachusetts. The licensee will be notifying the town of Plymouth as part of their local notifications. The licensee will be issuing a press release.

Page Last Reviewed/Updated Friday, January 05, 2018
Friday, January 05, 2018