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Event Notification Report for May 22, 2013

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
05/21/2013 - 05/22/2013

** EVENT NUMBERS **


49054 49055 49056

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Power Reactor Event Number: 49054
Facility: CALVERT CLIFFS
Region: 1 State: MD
Unit: [ ] [2] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: AMI CORDER
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 05/21/2013
Notification Time: 06:20 [ET]
Event Date: 05/21/2013
Event Time: 05:33 [EDT]
Last Update Date: 05/21/2013
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):
MEL GRAY (R1DO)

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

Event Text

MANUAL REACTOR TRIP AFTER A FEED PUMP TRIP

"Reactor trip. All safety functions met with normal heat removal. 22 SGFP [Steam Generator Feedpump] exhibited high vibrations and signs of coupling damage. Further investigation will be performed."

All control rods fully inserted on the trip. Steam Generator level is being maintained with the remaining feedpump. Decay heat is being dumped to the main condenser. Electrical power is in the normal shutdown lineup. No relief or safety valves lifted during the trip. There was no effect on Unit 1.

The licensee notified the NRC Resident Inspector.

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Power Reactor Event Number: 49055
Facility: HATCH
Region: 2 State: GA
Unit: [ ] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: STEVE BURTON
HQ OPS Officer: VINCE KLCO
Notification Date: 05/21/2013
Notification Time: 16:46 [ET]
Event Date: 03/24/2013
Event Time: 10:09 [EDT]
Last Update Date: 05/21/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
ALAN BLAMEY (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 92 Power Operation 92 Power Operation

Event Text

INVALID ACTUATION OF HPCI SUCTION VALVES

"On March 24, 2013, at 1009 EDT, while personnel were entering the torus compartment to perform planned maintenance activities via permanently installed plant ladder, the sensing line to transmitter 2E41-N062D was inadvertently bumped. [This] was confirmed to be the cause for an invalid torus high water level alarm and a HPCI [High Pressure Core Injection] pump suction swap. This resulted in the HPCI suction swapping from its normal lineup, condensate storage tank (CST), to the torus as designed. Once actuated the suction swap occurred as designed. The cause was attributed to the close proximity between an individual descending/ascending the fixed ladder and the affected sensing line in conjunction with a loose tubing restraint which made the line more sensitive to being bumped. After confirming that the actuation on high torus level was invalid, HPCI suction was realigned to the CST.

"The HPCI pump suction was subsequently realigned to the CST and the loose tubing restraints were tightened."

The licensee notified the NRC Resident Inspector.

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Power Reactor Event Number: 49056
Facility: FORT CALHOUN
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: (1) CE
NRC Notified By: SCOTT MOECK
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 05/21/2013
Notification Time: 22:15 [ET]
Event Date: 05/21/2013
Event Time: 12:00 [CDT]
Last Update Date: 05/21/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
Person (Organization):
NEIL OKEEFE (R4DO)

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

FITNESS-FOR-DUTY REPORT INVOLVING A NON-LICENSED CONTRACT SUPERVISOR

A non-licensed, contract supervisory employee failed a random fitness-for-duty test. The employee's access to the plant has been revoked.

The licensee informed the NRC Resident Inspector.

Page Last Reviewed/Updated Wednesday, May 22, 2013
Wednesday, May 22, 2013