Event Notification Report for November 25, 2012
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/24/2012 - 11/25/2012
EVENT NUMBERS
48534
Power Reactor
Event Number: 48534
Facility: SALEM
Region: 1 State: NJ
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JOHN KONOVALCHICK
HQ OPS Officer: DONALD NORWOOD
Region: 1 State: NJ
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JOHN KONOVALCHICK
HQ OPS Officer: DONALD NORWOOD
Notification Date: 11/25/2012
Notification Time: 15:13 [ET]
Event Date: 11/25/2012
Event Time: 11:30 [EST]
Last Update Date: 11/25/2012
Notification Time: 15:13 [ET]
Event Date: 11/25/2012
Event Time: 11:30 [EST]
Last Update Date: 11/25/2012
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
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
JAMES DWYER (R1DO)
JAMES DWYER (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 92 | Power Operation | 0 | Hot Standby |
AUTOMATIC REACTOR TRIP DUE TO STEAM GENERATOR FEEDWATER REGULATOR VALVE NOT RESPONDING TO DEMAND SIGNAL
"This notification is being made to report that Salem Unit 2 has experienced an automatic reactor trip at 1130 EST. The reactor trip was caused by 24BF19, 24 steam generator feedwater regulation valve, not responding to demand signal that resulted in a reactor trip due to 24 steam generator lo-lo level. The cause of the 24BF19 failure to respond to demand is under investigation.
"21, 22 & 23 AFW pumps all auto started as expected on the reactor trip feeding the steam generators. 23 AFW pump has been shutdown by procedure. 21 & 22 AFW pumps are maintaining steam generator levels with decay heat removal via the main steam dump system. All control & shutdown rods fully inserted on the reactor trip.
"Salem Unit 2 is currently in mode 3. Reactor coolant system temperature is 547 degrees F with pressure at 2235 psig. There are no shut down technical specifications action statements in effect.
"All ECCS and ESF systems are available. All safety related equipment responded as expected. There were no personnel injuries associated with this event."
The licensee will inform the Lower Alloways Creek Township, the State of New Jersey, and the State of Delaware. The licensee has informed the NRC Resident Inspector.
"This notification is being made to report that Salem Unit 2 has experienced an automatic reactor trip at 1130 EST. The reactor trip was caused by 24BF19, 24 steam generator feedwater regulation valve, not responding to demand signal that resulted in a reactor trip due to 24 steam generator lo-lo level. The cause of the 24BF19 failure to respond to demand is under investigation.
"21, 22 & 23 AFW pumps all auto started as expected on the reactor trip feeding the steam generators. 23 AFW pump has been shutdown by procedure. 21 & 22 AFW pumps are maintaining steam generator levels with decay heat removal via the main steam dump system. All control & shutdown rods fully inserted on the reactor trip.
"Salem Unit 2 is currently in mode 3. Reactor coolant system temperature is 547 degrees F with pressure at 2235 psig. There are no shut down technical specifications action statements in effect.
"All ECCS and ESF systems are available. All safety related equipment responded as expected. There were no personnel injuries associated with this event."
The licensee will inform the Lower Alloways Creek Township, the State of New Jersey, and the State of Delaware. The licensee has informed the NRC Resident Inspector.