Event Notification Report for January 04, 2003
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/03/2003 - 01/04/2003
EVENT NUMBERS
39488
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 39488
Facility: QUAD CITIES
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: JOHN LECHMAIER
HQ OPS Officer: HOWIE CROUCH
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: JOHN LECHMAIER
HQ OPS Officer: HOWIE CROUCH
Notification Date: 01/04/2003
Notification Time: 07:47 [ET]
Event Date: 01/04/2003
Event Time: 01:13 [CST]
Last Update Date: 03/04/2003
Notification Time: 07:47 [ET]
Event Date: 01/04/2003
Event Time: 01:13 [CST]
Last Update Date: 03/04/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
ROGER LANKSBURY (R3)
ROGER LANKSBURY (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
LOW PRESSURE COOLANT INJECTION DECLARED INOPERABLE
"At 0113 hours CST on 1/4/2003, SR 3.5.1.1 [Surveillance Requirement] (monthly fill and vent surveillance) was initiated on U-2 B RHR loop. When the high point vents were opened, no flow was observed within the established venting criteria required by the surveillance. Based on this, neither LPCI [Low Pressure Coolant Injection] subsystem could be ensured filled to the injection valves. Both LPCI subsystems were declared inoperable and TS 3.5.1 [Technical Specification] Condition D [was] entered. At 0204 hours CST, when full flow was observed from the 2B RHR loop, TS 3.5.1 Condition D was exited. At 0210 hours CST, 2A RHR loop was subsequently vented and full flow was observed immediately.
"This notification is being made in accordance with 10CFR50.72(b)(3)(v)[(D)]."
Licensee has informed the NRC Resident Inspector.
*** EVENT RETRACTED ON 3/4/03 1157 EST BY MIKE SWEGLE TO ERIC THOMAS ***
"ENS Retraction - Low Pressure Coolant Injection Declared Inoperable
"The purpose of this notification is to retract the ENS report made on 1/04/2003 at 0747 EST (Event #39488). The initial report was made when it appeared the established venting criteria for Low Pressure Coolant Injection (LPCI) was not met during the monthly fill and vent surveillance. A subsequent investigation has determined that the LPCI system was properly filled and vented at the time. A review of plant parameters (including alarm data, system piping configuration, and Reactor Building Equipment Drain Tank flow indications) confirmed that the RHR piping was properly filled.
"The original event is attributed to difficulty in interpreting the sight glass indications during the venting process. The sight glass indicator used to visually verify that flow is established during the venting surveillance was not properly drained.
"For these reasons, Quad Cities Station has determined that the LPCI system was fully operable at the time of the event."
The licensee has informed the NRC Resident Inspector.
"At 0113 hours CST on 1/4/2003, SR 3.5.1.1 [Surveillance Requirement] (monthly fill and vent surveillance) was initiated on U-2 B RHR loop. When the high point vents were opened, no flow was observed within the established venting criteria required by the surveillance. Based on this, neither LPCI [Low Pressure Coolant Injection] subsystem could be ensured filled to the injection valves. Both LPCI subsystems were declared inoperable and TS 3.5.1 [Technical Specification] Condition D [was] entered. At 0204 hours CST, when full flow was observed from the 2B RHR loop, TS 3.5.1 Condition D was exited. At 0210 hours CST, 2A RHR loop was subsequently vented and full flow was observed immediately.
"This notification is being made in accordance with 10CFR50.72(b)(3)(v)[(D)]."
Licensee has informed the NRC Resident Inspector.
*** EVENT RETRACTED ON 3/4/03 1157 EST BY MIKE SWEGLE TO ERIC THOMAS ***
"ENS Retraction - Low Pressure Coolant Injection Declared Inoperable
"The purpose of this notification is to retract the ENS report made on 1/04/2003 at 0747 EST (Event #39488). The initial report was made when it appeared the established venting criteria for Low Pressure Coolant Injection (LPCI) was not met during the monthly fill and vent surveillance. A subsequent investigation has determined that the LPCI system was properly filled and vented at the time. A review of plant parameters (including alarm data, system piping configuration, and Reactor Building Equipment Drain Tank flow indications) confirmed that the RHR piping was properly filled.
"The original event is attributed to difficulty in interpreting the sight glass indications during the venting process. The sight glass indicator used to visually verify that flow is established during the venting surveillance was not properly drained.
"For these reasons, Quad Cities Station has determined that the LPCI system was fully operable at the time of the event."
The licensee has informed the NRC Resident Inspector.