Event Notification Report for September 24, 2003
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/23/2003 - 09/24/2003
Power Reactor
Event Number: 40196
Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: GORDON ROBINSON
HQ OPS Officer: RICH LAURA
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: GORDON ROBINSON
HQ OPS Officer: RICH LAURA
Notification Date: 09/24/2003
Notification Time: 03:20 [ET]
Event Date: 09/24/2003
Event Time: 00:53 [EDT]
Last Update Date: 09/24/2003
Notification Time: 03:20 [ET]
Event Date: 09/24/2003
Event Time: 00:53 [EDT]
Last Update Date: 09/24/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(A) - ECCS INJECTION 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)(A) - ECCS INJECTION 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
TODD JACKSON (R1)
TODD JACKSON (R1)
| 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 |
AUTOMATIC SCRAM AT SUSQUEHANNA ON LOW WATER LEVEL
"At 0053 hours on September 24, 2003 with Susquehanna Unit 1 operating at 100% power an automatic reactor scram occurred due to low water level. At the time of the scram, reactor feed pump testing was in progress and the 'C' reactor feed pump tripped. The reactor recirc pumps runback initiated as expected when water level reached 30" with the feed pump tripped. Level continued to drop and reached the Level 3 auto scram setpoint. Level continued to drop and reached a low level of approximately -48" wide range. Reactor Core Isolation Cooling and High Pressure Coolant Injection auto started at their initiation setpoints and injected to the vessel to recover level. All level 2 and 3 containment isolations occurred as expected. The reactor recirc pumps tripped as expected when level 2 was reached. Reactor Pressure was controlled with bypass valves, there were no Safety Relief Valve lifts. There are no challenges to containment.
"Unit 1 is currently stable in Mode 3 with both reactor recirc pumps restarted. A human performance error was the cause of the reactor feed pump trip. Investigation is continuing into the plant response to the reactor feed pump trip."
The NRC Resident Inspector was notified of this event.
"At 0053 hours on September 24, 2003 with Susquehanna Unit 1 operating at 100% power an automatic reactor scram occurred due to low water level. At the time of the scram, reactor feed pump testing was in progress and the 'C' reactor feed pump tripped. The reactor recirc pumps runback initiated as expected when water level reached 30" with the feed pump tripped. Level continued to drop and reached the Level 3 auto scram setpoint. Level continued to drop and reached a low level of approximately -48" wide range. Reactor Core Isolation Cooling and High Pressure Coolant Injection auto started at their initiation setpoints and injected to the vessel to recover level. All level 2 and 3 containment isolations occurred as expected. The reactor recirc pumps tripped as expected when level 2 was reached. Reactor Pressure was controlled with bypass valves, there were no Safety Relief Valve lifts. There are no challenges to containment.
"Unit 1 is currently stable in Mode 3 with both reactor recirc pumps restarted. A human performance error was the cause of the reactor feed pump trip. Investigation is continuing into the plant response to the reactor feed pump trip."
The NRC Resident Inspector was notified of this event.
Power Reactor
Event Number: 40197
Facility: OYSTER CREEK
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: MR. VOISHNIS
HQ OPS Officer: NATHAN SANFILIPPO
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: MR. VOISHNIS
HQ OPS Officer: NATHAN SANFILIPPO
Notification Date: 09/24/2003
Notification Time: 16:52 [ET]
Event Date: 09/24/2003
Event Time: 14:55 [EDT]
Last Update Date: 09/24/2003
Notification Time: 16:52 [ET]
Event Date: 09/24/2003
Event Time: 14:55 [EDT]
Last Update Date: 09/24/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
TODD JACKSON (R1)
TODD JACKSON (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
OFFSITE NOTIFICATION DUE TO RECOVERY OF LIVE SEA TURTLE
Notifications will be made to the National Marine Fisheries Service and the Brigintine Marine Mammal Stranding Center due to a live sea turtle retrieved from the Oyster Creek dilution plant. This notification and report is required by the Oyster Creek Environmental Technical Specifications.
The licensee notified the NRC Resident Inspector.
Notifications will be made to the National Marine Fisheries Service and the Brigintine Marine Mammal Stranding Center due to a live sea turtle retrieved from the Oyster Creek dilution plant. This notification and report is required by the Oyster Creek Environmental Technical Specifications.
The licensee notified the NRC Resident Inspector.