| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
07/15/2014 - 07/16/2014 ** EVENT NUMBERS ** |
 | Power Reactor | Event Number: 50281 | Facility: MILLSTONE
Region: 1 State: CT
Unit: [ ] [2] [ ]
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: GERALD BAKER
HQ OPS Officer: CHARLES TEAL | Notification Date: 07/15/2014
Notification Time: 13:20 [ET]
Event Date: 07/15/2014
Event Time: 09:40 [EDT]
Last Update Date: 07/15/2014 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
CHRISTOPHER CAHILL (R1DO)
|
| 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 STACK HIGH RANGE RADIATION MONITOR OUT OF SERVICE FOR PLANNED MAINTENANCE
The Unit 2 stack high range radiation monitor (RM 8169) was removed from service at 0940 EDT for planned maintenance. The monitor was returned to service at 1119 EDT after the completion of maintenance.
The licensee notified the NRC Resident Inspector, the Connecticut Department of Energy and Environmental Protection, and the city of Waterford for this event. |
| Power Reactor | Event Number: 50282 | Facility: BRAIDWOOD
Region: 3 State: IL
Unit: [ ] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JOE CONQUEST
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 07/15/2014
Notification Time: 17:57 [ET]
Event Date: 07/15/2014
Event Time: 09:42 [CDT]
Last Update Date: 07/15/2014 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
| Person (Organization):
PATTY PELKE (R3DO)
|
| 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 UNANALYZED CONDITION - LOW CONTAINMENT SPRAY FLOW RATE
"At 0942 [CDT] on 7/15/2014, the 2A Containment Spray chemical additive flow was found out of tolerance low during surveillance testing. This resulted in an unanalyzed condition in that insufficient chemical additive flow might have resulted in lower than assumed containment spray pH values during past periods.
"Based on the above, this is being reported in accordance with 10CFR50.72(b)(3)(ii)(B). Actions are in progress to restore the 2A Containment Spray chemical additive flow to within tolerance. The 2B Containment Spray system is operable per Technical Specification 3.6.6 and is capable of providing required chemical additive flow.
"The required flow is 18 to 67 gallons per minute (gpm), however, the measured flow was 17.96 gpm.
"The licensee has notified the NRC Resident Inspector." | |