Event Notification Report for December 07, 2002
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/06/2002 - 12/07/2002
EVENT NUMBERS
39429
Power Reactor
Event Number: 39429
Facility: DRESDEN
Region: 3 State: IL
Unit: [] [] [3]
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: WOITKIEWICZ
HQ OPS Officer: CHAUNCEY GOULD
Region: 3 State: IL
Unit: [] [] [3]
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: WOITKIEWICZ
HQ OPS Officer: CHAUNCEY GOULD
Notification Date: 12/07/2002
Notification Time: 08:51 [ET]
Event Date: 12/07/2002
Event Time: 06:35 [CST]
Last Update Date: 12/07/2002
Notification Time: 08:51 [ET]
Event Date: 12/07/2002
Event Time: 06:35 [CST]
Last Update Date: 12/07/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS 50.72(b)(3)(ii)(A) - DEGRADED CONDITION
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS 50.72(b)(3)(ii)(A) - DEGRADED CONDITION
Person (Organization):
KENNETH RIEMER (R3)
CHRISTOPHER GRIMES (NRR)
KENNETH RIEMER (R3)
CHRISTOPHER GRIMES (NRR)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | N | Y | 20 | Power Operation | 20 | Power Operation |
PLANT ENTERED TS 3.4.4 DUE TO PCS BOUNDARY LEAKAGE OF APPROXIMATELY 1.5 GPM
During a drywell entry to identify the source of increased drywell leakage, they discovered a primary coolant system (PCS) leak on the "3A" reactor recirculation pump discharge loop flow instrument line. This condition required entry into TS 3.4.4 which requires that there is no pressure boundary leakage. Entering this condition requires that the unit be in mode 3 in 12 hours and mode 4 in 36 hours, which is a TS required shutdown. The leakage is estimated to be approximately 1.5 gpm. They will commence repairs when they reach mode 4 (may go to mode 5).
The NRC Resident inspector was notified.
During a drywell entry to identify the source of increased drywell leakage, they discovered a primary coolant system (PCS) leak on the "3A" reactor recirculation pump discharge loop flow instrument line. This condition required entry into TS 3.4.4 which requires that there is no pressure boundary leakage. Entering this condition requires that the unit be in mode 3 in 12 hours and mode 4 in 36 hours, which is a TS required shutdown. The leakage is estimated to be approximately 1.5 gpm. They will commence repairs when they reach mode 4 (may go to mode 5).
The NRC Resident inspector was notified.