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Power Reactor Status Report for May 06, 1999

UNEVALUATED INFORMATION PROVIDED BY THE FACILITY

On this page:

Region 1

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Beaver Valley 1 0 1999-05-01 SURVEILLANCE OUTAGE - SHUTDOWN DUE TO PROBLEMS WITH THE MAIN TURBINE SEAL OIL SYSTEM
Beaver Valley 2 100
Calvert Cliffs 1 100
Calvert Cliffs 2 0 1999-03-12 EXITING REFUELING OUTAGE
FitzPatrick 100
Ginna 100 REACTOR POWER DECREASED FROM 97% TO 94% ON 05/05/99 DUE TO A 1.2-SECOND TURBINE POWER RUNBACK SIGNAL ON OVERPOWER DELTA TEMPERATURE (REFER TO EVENT #35680) - DISCOVERED THAT DELTA T SPANS WERE NOT CORRECT AND ADJUSTED THEM *
Hope Creek 1 100
Indian Point 2 99 MAXIMUM OPERATING POWER DUE TO STEAM FLOW DEMAND - TURBINE THROTTLE VALVES FULLY OPEN
Indian Point 3 100
Limerick 1 100
Limerick 2 0 1999-04-16 REFUELING OUTAGE - FUEL SHUFFLE ON HOLD - PERFORMING CONTROL ROD DRIVE MAINTENANCE *
Millstone 2 0 1996-02-20 EXITING REFUELING OUTAGE - PLANT STARTUP ON HOLD DUE TO RESTRAINING ORDER BY STATE JUDGE INVOLVING PLANT INTAKE
Millstone 3 0 1999-05-01 ENTERING REFUELING OUTAGE
Nine Mile Point 1 0 1999-04-11 REFUELING OUTAGE - DEFUELED
Nine Mile Point 2 32 HOLDING POWER AT THIS LEVEL TO TROUBLESHOOT RECIRCULATION FLOW CONTROL VALVES AFTER EXITING A FORCED MAINTENANCE OUTAGE *
Oyster Creek 100
Peach Bottom 2 100
Peach Bottom 3 100
Pilgrim 1 80 HOLDING POWER AT THIS LEVEL DUE TO AN INOPERABLE MAIN STEAM ISOLATION VALVE
Salem 1 100
Salem 2 0 1999-04-03 REFUELING OUTAGE - VESSEL HEAD TENSIONING IN PROGRESS *
Seabrook 1 0 1999-03-27 REFUELING OUTAGE - BUBBLE DRAWN IN PRESSURIZER *
Susquehanna 1 100
Susquehanna 2 95 HOLDING POWER AT THIS LEVEL IN PREPARATION FOR A PLANNED FORCED MAINTENANCE OUTAGE - PLAN TO TAKE UNIT OFF LINE AT ABOUT 2100 TO REPAIR THE ISOPHASE GOING TO THE MAIN OUTPUT TRANSFORMER - UNIT WILL REMAIN CRITICAL *
Three Mile Island 1 100
Vermont Yankee 100

Region 2

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Browns Ferry 1 0 1985-03-03 DEFUELED
Browns Ferry 2 0 1999-04-11 EXITING REFUELING OUTAGE - NEAR POINT OF CRITICALITY *
Browns Ferry 3 100
Brunswick 1 100
Brunswick 2 0 1999-04-16 REFUELING OUTAGE - FUEL RELOAD IN PROGRESS
Catawba 1 0 1999-04-21 REFUELING OUTAGE - DEFUELED
Catawba 2 0 1999-05-03 TS REQUIRED SHUTDOWN FROM 9% POWER ON 05/05/99 DUE TO BIOLOGICAL FOULING IN AFW ASSURED SOURCE PIPING (REFER TO EVENT #s 35678 AND 35670) FOLLOWING A FULL LOAD REJECTION WHEN MAIN GENERATOR OUTPUT BREAKERS OPENED ON 05/03/99 - TROUBLESHOOTING IN PROGRESS *
Crystal River 3 85 HOLDING POWER AT THIS LEVEL TO PERFORM CIRCULATING PUMP MAINTENANCE
Farley 1 100
Farley 2 49 OPERATING AT REDUCED POWER TO AVOID COASTDOWN DURING PEAK DEMAND PERIOD *
Harris 1 100
Hatch 1 53 HOLDING POWER AT THIS LEVEL TO REPAIR A CIRCULATING WATER PUMP *
Hatch 2 0 1999-05-05 AUTOMATIC REACTOR SCRAM FROM 98% MAXIMUM OPERATING POWER DUE TO A GENERATOR TRIP FOR UNKNOWN REASONS AND SUBSEQUENT TURBINE TRIP WITH REACTOR GREATER THAN 30% POWER (REFER TO EVENT #35676) - TROUBLESHOOTING IN PROGRESS *
McGuire 1 100
McGuire 2 100
North Anna 1 100
North Anna 2 100
Oconee 1 100
Oconee 2 100
Oconee 3 100
Robinson 2 100
Saint Lucie 1 100
Saint Lucie 2 100
Sequoyah 1 100
Sequoyah 2 0 1999-04-18 EXITING REFUELING OUTAGE
Summer 0 1999-04-03 EXITING REFUELING OUTAGE
Surry 1 100
Surry 2 0 1999-04-18 REFUELING OUTAGE - DEFUELED
Turkey Point 3 100
Turkey Point 4 100
Vogtle 1 100
Vogtle 2 100
Watts Bar 1 100

Region 3

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Braidwood 1 100
Braidwood 2 0 1999-04-23 REFUELING OUTAGE - FUEL RELOAD COMPLETE *
Byron 1 100
Byron 2 100
Clinton 0 1996-09-06 EXITING REFUELING OUTAGE - ROD WITHDRAWAL IN PROGRESS *
D.C. Cook 1 0 1997-09-08 MAINTENANCE OUTAGE
D.C. Cook 2 0 1997-09-09 REFUELING OUTAGE
Davis-Besse 0 1999-04-23 MAINTENANCE OUTAGE
Dresden 2 100
Dresden 3 100
Duane Arnold 100
Fermi 2 97 ADMINISTRATIVE POWER LIMIT
Kewaunee 97 POWER LIMITED DUE TO STEAM GENERATOR TUBE PLUGGING
La Salle 1 100
La Salle 2 100
Monticello 100
Palisades 100
Perry 1 80 INCREASING POWER AFTER EXITING A REFUELING OUTAGE *
Point Beach 1 100
Point Beach 2 100
Prairie Island 1 0 1999-04-16 REFUELING OUTAGE - FUEL RELOAD COMPLETE *
Prairie Island 2 100
Quad Cities 1 85 DECREASING POWER TO APPROXIMATELY 60% TO PERFORM A CONTROL ROD SHUFFLE *
Quad Cities 2 100

Region 4

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Arkansas Nuclear 1 100
Arkansas Nuclear 2 100
Callaway 100
Columbia Generating Station 0 1999-04-17 MAINTENANCE OUTAGE
Comanche Peak 1 100
Comanche Peak 2 100
Cooper 100
Diablo Canyon 1 100
Diablo Canyon 2 100
Fort Calhoun 100
Grand Gulf 1 100
Palo Verde 1 100
Palo Verde 2 98 HOLDING POWER AT THIS LEVEL TO PERFORM STEAM GENERATOR HIGH RATE BLOWDOWNS AFTER EXITING A REFUELING OUTAGE *
Palo Verde 3 100
River Bend 1 0 1999-04-03 REFUELING OUTAGE - FUEL PARTIALLY OFFLOADED - FUEL INSPECTIONS IN PROGRESS
San Onofre 2 100
San Onofre 3 0 1999-03-27 EXITING REFUELING OUTAGE *
South Texas 1 100
South Texas 2 100
Waterford 3 100
Wolf Creek 1 0 1999-04-03 EXITING REFUELING OUTAGE - PREPARING TO ENTER MODE 3 (HOT STANDBY)

* - Power Reactor Status Report change within past 24 hours
# - Number of reactor scrams or trips within past 24 hours

Notes:
  • Reactor status data collected between 4 a.m. and 8 a.m. each day.
  • All times are based on eastern time.