Event Notification Report for December 28, 2004
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/27/2004 - 12/28/2004
EVENT NUMBERS
41298
Power Reactor
Event Number: 41298
Facility: TURKEY POINT
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: PAUL REIMERS
HQ OPS Officer: HOWIE CROUCH
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: PAUL REIMERS
HQ OPS Officer: HOWIE CROUCH
Notification Date: 12/28/2004
Notification Time: 23:51 [ET]
Event Date: 12/28/2004
Event Time: 22:46 [EST]
Last Update Date: 12/29/2004
Notification Time: 23:51 [ET]
Event Date: 12/28/2004
Event Time: 22:46 [EST]
Last Update Date: 12/29/2004
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 MOORMAN (R2)
JAMES MOORMAN (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | M/R | Y | 70 | Power Operation | 0 | Hot Standby |
MANUAL REACTOR TRIP DUE TO GENERATOR EXCITER COOLING WATER LEAK
"Unit 3 unplanned Manual Reactor trip from 70% due to Generator Exciter cooling water leak. Leak caused voltage regulator transfer to manual. Cooling water leak was isolated after the manual reactor trip. Water was noted in the 3B 4kv safety related bus room affecting 3B Residual Heat Removal Pump breaker. This component is considered inoperable pending corrective action. Plant is stable in mode 3.
"Auxiliary Feed Water actuated automatically, as expected, and operated normally following the reactor trip."
All control rods fully inserted. The MSIV's were manually closed to prevent excessive RCS cooldown and decay heat is being removed via the atmospheric steam dumps. Unit 4 was unaffected. The licensee will notify the NRC Resident Inspector.
"Unit 3 unplanned Manual Reactor trip from 70% due to Generator Exciter cooling water leak. Leak caused voltage regulator transfer to manual. Cooling water leak was isolated after the manual reactor trip. Water was noted in the 3B 4kv safety related bus room affecting 3B Residual Heat Removal Pump breaker. This component is considered inoperable pending corrective action. Plant is stable in mode 3.
"Auxiliary Feed Water actuated automatically, as expected, and operated normally following the reactor trip."
All control rods fully inserted. The MSIV's were manually closed to prevent excessive RCS cooldown and decay heat is being removed via the atmospheric steam dumps. Unit 4 was unaffected. The licensee will notify the NRC Resident Inspector.