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Event Notification Report for June 1, 2016

U.S. Nuclear Regulatory Commission
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Event Reports For
05/31/2016 - 06/01/2016

** EVENT NUMBERS **


51951 51967

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Agreement State Event Number: 51951
Rep Org: KENTUCKY DEPT OF RADIATION CONTROL
Licensee: BIG RIVERS ELECTRIC CORPORATION
Region: 1
City: HENDERSON State: KY
County:
License #: 201-277-56
Agreement: Y
Docket:
NRC Notified By: ERIC PERRY
HQ OPS Officer: BETHANY CECERE
Notification Date: 05/24/2016
Notification Time: 09:11 [ET]
Event Date: 05/18/2016
Event Time: [CDT]
Last Update Date: 05/24/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
JON LILLIENDAHL (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)

Event Text

AGREEMENT STATE REPORT - FAILED SHUTTER DEVICE

The following report was excerpted from an email from the Commonwealth of Kentucky, Department for Public Health, Radiation Health Branch:

On May 18, 2016, a fixed gauge was discovered to have a failed shutter device at the licensee's site at West Centertown, Kentucky. There was a failure of on/off mechanisms on one fixed gauge to function as designed. Failure discovered during routine testing of on/off mechanism by licensee. The licensee has contacted a service provider to schedule removal/repair.

The licensee notified the Kentucky Department for Public Health on May 24, 2016.

The fixed gauge is in a remote area of the plant and no overexposures of personnel have occurred.

Kentucky Event Report ID: KY160005.

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Power Reactor Event Number: 51967
Facility: CALVERT CLIFFS
Region: 1 State: MD
Unit: [1] [ ] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: TIM HUBER
HQ OPS Officer: JEFF HERRERA
Notification Date: 05/31/2016
Notification Time: 18:12 [ET]
Event Date: 05/31/2016
Event Time: 16:26 [EDT]
Last Update Date: 05/31/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
DAN SCHROEDER (R1DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 A/R Y 100 Power Operation 0 Hot Standby

Event Text

CALVERT CLIFFS LOSS OF LOAD TURBINE/REACTOR TRIP FROM 100 PERCENT POWER

"On 05/31/2016 at 1626 [EDT], a Reactor Trip occurred on Loss of Load RPS [Reactor Protection System] actuation. The Turbine Trip was apparently caused by a failed ESFAS [Engineered Safety Feature Actuation System] logic module. The failed NSR [Non Safety Related] logic module was associated with 11 Steam Generator High Level Turbine Trip. All systems responded as designed. Normal decay heat removal is to the condenser. All offsite power sources remained in service."

The NRC Resident Inspector was notified.

Page Last Reviewed/Updated Wednesday, June 01, 2016
Wednesday, June 01, 2016