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Event Notification Report for January 30, 2018

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
01/29/2018 - 01/30/2018

** EVENT NUMBERS **


53123 53179

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!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor Event Number: 53123
Facility: BRUNSWICK
Region: 2 State: NC
Unit: [ ] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: ALAN SCHULTZ
HQ OPS Officer: ANDREW WAUGH
Notification Date: 12/17/2017
Notification Time: 05:48 [ET]
Event Date: 12/17/2017
Event Time: 03:16 [EST]
Last Update Date: 01/29/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
BINOY DESAI (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 100 Power Operation

Event Text

HIGH PRESSURE COOLANT INJECTION (HPCI) SYSTEM DECLARED INOPERABLE

"On December 17, 2017 at 0316 EST, the Unit 2 HPCI system was isolated and declared inoperable due to a packing failure of the HPCI Turbine Steam Supply Valve (i.e., 2-E41-F001). Isolation of the HPCI system due to the packing failure prevents the HPCI system from performing its design safety function. As such, this event is being reported in accordance with 10 CFR 50.72(b)(3)(v)(D) as a condition that at the time of discovery could have prevented the fulfillment of the safety function of a system that is needed to mitigate the consequences of an accident.

"Unit 2 HPCI system has been isolated and depressurized. The HPCI system will remain inoperable until the valve can be repaired.

"The safety significance of this condition is minimal. All other Emergency Core Cooling Systems (ECCS) and the Reactor Core Isolation Cooling (RCIC) system remain operable.

"This event did not result in any adverse impact to the health and safety of the public."

The NRC Resident Inspector has been notified.


* * * RETRACTION ON 1/29/18 AT 1514 EST FROM MARK TURKAL TO DONG PARK * * *

"Based upon further evaluation, Duke Energy is retracting Event Notification 53123. Engineering has determined that the packing failure of the HPCI Turbine Steam Supply Valve did not prevent the HPCI system from performing its safety function. Environmental conditions resulting from the steam leak would not have caused automatic HPCI isolation or otherwise have degraded HPCI operation. Additionally, the amount of steam diverted through the packing leak was negligible with respect to total steam flow and did not affect HPCI system performance. HPCI would have remained operable throughout its entire mission time. Therefore, this condition does not represent an event or condition that could have prevented fulfillment of a safety function needed to mitigate the consequences of an accident and is not reportable in accordance with 10 CFR 50.72(b)(3)(v)(D).

"The NRC Resident Inspector was notified of this retraction."

Notified R2DO (Heisserer).

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Agreement State Event Number: 53179
Rep Org: TENNESSEE DIV OF RAD HEALTH
Licensee: ROANE MEDICAL CENTER
Region: 1
City: HARRIMAN State: TN
County:
License #: R-73003
Agreement: Y
Docket:
NRC Notified By: ANDREW HOLCOMB
HQ OPS Officer: STEVEN VITTO
Notification Date: 01/22/2018
Notification Time: 15:16 [ET]
Event Date: 02/19/2014
Event Time: [EST]
Last Update Date: 01/22/2018
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
HAROLD GRAY (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - FACILITY FAILED TO REPORT SUSPECTED OVEREXPOSURE

The following was received via email:

"On 1/19/18, while conducting an inspection at [Roane Medical Center] RMC of a standard diagnostic nuclear medicine program with no written directive, an inspector identified, in review of facility dose records, evidence of an overexposure to a nuclear medicine technician of a dose of 118.425 Rem for period of January 20, 2014 to February 19, 2014. Investigation by the facility subsequently determined that the exposure was not likely a real exposure to the individual. However, facility failed to report the suspected overexposure. Dose was subsequently removed from the individual's dose history based on their investigation."

State Event Report ID NO.: TN-18-012

Page Last Reviewed/Updated Tuesday, January 30, 2018
Tuesday, January 30, 2018