Event Notification Report for March 24, 2004
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/23/2004 - 03/24/2004
Power Reactor
Event Number: 40608
Facility: CRYSTAL RIVER
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] B&W-L-LP
NRC Notified By: RICHARD SWEENEY
HQ OPS Officer: BILL GOTT
Region: 2 State: FL
Unit: [3] [] []
RX Type: [3] B&W-L-LP
NRC Notified By: RICHARD SWEENEY
HQ OPS Officer: BILL GOTT
Notification Date: 03/24/2004
Notification Time: 04:39 [ET]
Event Date: 03/24/2004
Event Time: 03:31 [EST]
Last Update Date: 03/24/2004
Notification Time: 04:39 [ET]
Event Date: 03/24/2004
Event Time: 03:31 [EST]
Last Update Date: 03/24/2004
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):
RUDOLPH BERNHARD (R2)
RUDOLPH BERNHARD (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
AUTOMATIC REACTOR TRIP DUE TO TURBINE TRIP
"At approximately 0331 EST the reactor tripped due to reactor protection system actuation. The Emergency Feedwater System actuated.
"It appears that a main feedwater perturbation [sensed low feedwater flow] occurred which actuated a main turbine trip. The main turbine trip actuated the reactor protection system which tripped the reactor."
The reactor shutdown and all control rods fully inserted. Decay heat is being removed using the turbine bypass valves and emergency feedwater.
The Licensee notified the NRC Resident Inspector.
"At approximately 0331 EST the reactor tripped due to reactor protection system actuation. The Emergency Feedwater System actuated.
"It appears that a main feedwater perturbation [sensed low feedwater flow] occurred which actuated a main turbine trip. The main turbine trip actuated the reactor protection system which tripped the reactor."
The reactor shutdown and all control rods fully inserted. Decay heat is being removed using the turbine bypass valves and emergency feedwater.
The Licensee notified the NRC Resident Inspector.
General Information or Other
Event Number: 40609
Rep Org: THERMO ELECTRON CORPORATION
Licensee: THERMO ELECTRON CORPORATION
Region: 4
City: HOUSTON State: TX
County:
License #:
Agreement: Y
Docket:
NRC Notified By: BARRY NICHOLSON
HQ OPS Officer: CHAUNCEY GOULD
Licensee: THERMO ELECTRON CORPORATION
Region: 4
City: HOUSTON State: TX
County:
License #:
Agreement: Y
Docket:
NRC Notified By: BARRY NICHOLSON
HQ OPS Officer: CHAUNCEY GOULD
Notification Date: 03/24/2004
Notification Time: 19:45 [ET]
Event Date: 03/24/2004
Event Time: 00:00 [CST]
Last Update Date: 03/24/2004
Notification Time: 19:45 [ET]
Event Date: 03/24/2004
Event Time: 00:00 [CST]
Last Update Date: 03/24/2004
Emergency Class: NON EMERGENCY
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH
Person (Organization):
DAVID GRAVES (R4)
RONALD BELLAMY (R1)
JOHN MADERA (R3)
VERN HODGE (NRR)
JACK FOSTER (NRR)
DAVID GRAVES (R4)
RONALD BELLAMY (R1)
JOHN MADERA (R3)
VERN HODGE (NRR)
JACK FOSTER (NRR)
THERMO WESTRONICS MODEL 3000C AND 3200C SERIES CHART RECORDER FAILURES
It has been determined that Thermo Electron Corporation's Thermo Westronics model 3000C and 3200C chart recorders have had problems with overheating and are a possible fire hazard. These units have been supplied to Fermi and Indian Point.
The manufacturer has made arrangements with the customers to provide replacements for the faulty circuit board assemblies upon customer request.
It has been determined that Thermo Electron Corporation's Thermo Westronics model 3000C and 3200C chart recorders have had problems with overheating and are a possible fire hazard. These units have been supplied to Fermi and Indian Point.
The manufacturer has made arrangements with the customers to provide replacements for the faulty circuit board assemblies upon customer request.