Event Notification Report for February 18, 2003
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/17/2003 - 02/18/2003
Power Reactor
Event Number: 39603
Facility: LASALLE
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-5,[2] GE-5
NRC Notified By: KEITH TABER
HQ OPS Officer: ERIC THOMAS
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-5,[2] GE-5
NRC Notified By: KEITH TABER
HQ OPS Officer: ERIC THOMAS
Notification Date: 02/20/2003
Notification Time: 17:32 [ET]
Event Date: 02/18/2003
Event Time: 10:16 [CST]
Last Update Date: 02/20/2003
Notification Time: 17:32 [ET]
Event Date: 02/18/2003
Event Time: 10:16 [CST]
Last Update Date: 02/20/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
JOHN MADERA (R3)
JOHN MADERA (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Refueling | 0 | Refueling |
INVALID SPECIFIED SYSTEM ACTUATION
"On February 18, 2003, at 1016 hours, with Unit 2 in Mode 5 (refuel), the 2B Emergency Diesel Generator (DG), automatically started during the restoration from the reactor vessel hydrostatic leakage test. The apparent cause was a spurious pressure spike sensed at instrument rack 2H22-P004 while opening the reactor vessel head vent valves. This pressure spike caused the associated reactor vessel water level transmitters to sense a low level condition. This invalid low level signal resulted in the automatic actuation of the 2B DG (Div. III) which is the emergency power supply to the Unit 2 High Pressure Core Spray (HPCS) system. The Unit 2 HPCS pump control switch had been placed in the pull to lock position as part of the procedure controls for the hydrostatic leakage test and therefore did not actuate. This system actuation is reportable under 10 CFR 50.73 (a)(2)(iv)(A).
"The 2B DG responded normally and reached normal speed and voltage. It was run both loaded and unloaded successfully, and was secured at 1042 on February 18, 2003.
"This report is being made in accordance with 10 CFR 50.73 (a)(1), which states that in the case of an invalid actuation reported under 10 CFR 50.73(a)(2)(iv), other than an actuation of the RPS when the reactor is critical, the licensee may provide a telephone notification to the NRC Operations Center within 60 days after discovery of the event instead of submitting a written LER."
"On February 18, 2003, at 1016 hours, with Unit 2 in Mode 5 (refuel), the 2B Emergency Diesel Generator (DG), automatically started during the restoration from the reactor vessel hydrostatic leakage test. The apparent cause was a spurious pressure spike sensed at instrument rack 2H22-P004 while opening the reactor vessel head vent valves. This pressure spike caused the associated reactor vessel water level transmitters to sense a low level condition. This invalid low level signal resulted in the automatic actuation of the 2B DG (Div. III) which is the emergency power supply to the Unit 2 High Pressure Core Spray (HPCS) system. The Unit 2 HPCS pump control switch had been placed in the pull to lock position as part of the procedure controls for the hydrostatic leakage test and therefore did not actuate. This system actuation is reportable under 10 CFR 50.73 (a)(2)(iv)(A).
"The 2B DG responded normally and reached normal speed and voltage. It was run both loaded and unloaded successfully, and was secured at 1042 on February 18, 2003.
"This report is being made in accordance with 10 CFR 50.73 (a)(1), which states that in the case of an invalid actuation reported under 10 CFR 50.73(a)(2)(iv), other than an actuation of the RPS when the reactor is critical, the licensee may provide a telephone notification to the NRC Operations Center within 60 days after discovery of the event instead of submitting a written LER."
Power Reactor
Event Number: 39595
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [1] [2] []
RX Type: [1] CE,[2] CE
NRC Notified By: CHARLES PIKE
HQ OPS Officer: HOWIE CROUCH
Region: 2 State: FL
Unit: [1] [2] []
RX Type: [1] CE,[2] CE
NRC Notified By: CHARLES PIKE
HQ OPS Officer: HOWIE CROUCH
Notification Date: 02/18/2003
Notification Time: 12:40 [ET]
Event Date: 02/18/2003
Event Time: 12:00 [EST]
Last Update Date: 02/18/2003
Notification Time: 12:40 [ET]
Event Date: 02/18/2003
Event Time: 12:00 [EST]
Last Update Date: 02/18/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
73.71(b)(1) - SAFEGUARDS REPORTS
10 CFR Section:
73.71(b)(1) - SAFEGUARDS REPORTS
Person (Organization):
CHARLES R. OGLE (R2)
ROBERTA WARREN (IAT)
CHARLES R. OGLE (R2)
ROBERTA WARREN (IAT)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
1- HOUR SAFEGUARDS REPORT
Unescorted access granted to contract employee inappropriately. Immediate compensatory measures taken upon discovery. Contact Headquarters Operations Officer for details.
Unescorted access granted to contract employee inappropriately. Immediate compensatory measures taken upon discovery. Contact Headquarters Operations Officer for details.