Event Notification Report for March 22, 2015
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/21/2015 - 03/22/2015
EVENT NUMBERS
50916
50916
Power Reactor
Event Number: 50916
Facility: OYSTER CREEK
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: GEORGE VOISHNIS
HQ OPS Officer: DANIEL MILLS
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: GEORGE VOISHNIS
HQ OPS Officer: DANIEL MILLS
Notification Date: 03/22/2015
Notification Time: 15:17 [ET]
Event Date: 03/22/2015
Event Time: 14:14 [EDT]
Last Update Date: 03/22/2015
Notification Time: 15:17 [ET]
Event Date: 03/22/2015
Event Time: 14:14 [EDT]
Last Update Date: 03/22/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
GLENN DENTEL (R1DO)
GLENN DENTEL (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 Shutdown |
REACTOR SCRAM DUE TO APRM HI HI SIGNAL
"RPS Actuation (scram) on a Hi-Hi APRM [average power range monitor] signal [which] occurred due to a pressure spike following a failure of the EPR (Electric Pressure Regulator). All Rods Inserted. All systems responded normally. No other safety system actuations occurred. Plant will proceed to a cold shut down condition."
The plant is in a normal electrical lineup. Core cooling is being maintained by the bypass valves to the condenser.
The licensee has notified the NRC Resident Inspector and will notify the local and state governments. A press release is planned by the licensee.
"RPS Actuation (scram) on a Hi-Hi APRM [average power range monitor] signal [which] occurred due to a pressure spike following a failure of the EPR (Electric Pressure Regulator). All Rods Inserted. All systems responded normally. No other safety system actuations occurred. Plant will proceed to a cold shut down condition."
The plant is in a normal electrical lineup. Core cooling is being maintained by the bypass valves to the condenser.
The licensee has notified the NRC Resident Inspector and will notify the local and state governments. A press release is planned by the licensee.