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Power Reactor Status Report for May 15, 1999

UNEVALUATED INFORMATION PROVIDED BY THE FACILITY

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Region 1

Unit Power Down Reason or Comment Change in Report (*) Scrams (#)
Beaver Valley 1 60 HOLDING POWER AT THIS LEVEL TO PERFORM PLANNED MAINTENANCE ON A FEEDWATER PUMP *
Beaver Valley 2 100
Calvert Cliffs 1 0 1999-05-10 MAINTENANCE OUTAGE - PREPARING TO ENTER MODE 4 *
Calvert Cliffs 2 100 *
FitzPatrick 100
Ginna 98 OPERATING AT REDUCED LOAD DUE TO DELTA-T SETPOINT ISSUES
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 MOVES COMPLETE - REACTOR REASSEMBLY IN PROGRESS *
Millstone 2 19 INCREASING POWER TO 29% FOR AN NRC HOLD *
Millstone 3 0 1999-05-01 REFUELING OUTAGE - FUEL OFFLOAD SUSPENDED DUE TO PROBLEMS WITH SIGMA MACHINE *
Nine Mile Point 1 0 1999-04-11 REFUELING OUTAGE - DEFUELED
Nine Mile Point 2 100
Oyster Creek 70 DECREASING TO 65% POWER TO PERFORM PLANNED MAINTENANCE ON A FEEDWATER HEATER *
Peach Bottom 2 72 INCREASING POWER AFTER REDUCING POWER TO THIS LEVEL TO PERFORM MAIN STEAM ISOLATION VALVE SOLENOID VALVE REPLACEMENT *
Peach Bottom 3 100
Pilgrim 1 0 1999-05-08 REFUELING OUTAGE - FUEL OFFLOAD AND FUEL SHUFFLE IN PROGRESS
Salem 1 100
Salem 2 0 1999-04-03 REFUELING OUTAGE
Seabrook 1 49 INCREASING POWER AFTER EXITING A REFUELING OUTAGE *
Susquehanna 1 100
Susquehanna 2 100
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 2 100 *
Browns Ferry 3 100
Brunswick 1 100
Brunswick 2 0 1999-04-16 REFUELING OUTAGE
Catawba 1 0 1999-04-21 REFUELING OUTAGE *
Catawba 2 0 1999-05-03 MAINTENANCE OUTAGE - TROUBLESHOOTING INTERMEDIATE RANGE DETECTOR PROBLEM *
Crystal River 3 100
Farley 1 100
Farley 2 100
Harris 1 100
Hatch 1 97 HOLDING POWER AT THIS LEVEL TO PERFORM POWER UPRATE TESTING *
Hatch 2 98 MAXIMUM OPERATING POWER
McGuire 1 100
McGuire 2 100
North Anna 1 63 DECREASING TO 60% POWER TO PERFORM BUS DUCT COOLING MAINTENANCE *
North Anna 2 100
Oconee 1 100
Oconee 2 100
Oconee 3 0 1999-05-15 FORCED MAINTENANCE OUTAGE DUE TO LOW REACTOR COOLANT PUMP OIL LEVEL *
Robinson 2 100
Saint Lucie 1 100
Saint Lucie 2 100
Sequoyah 1 100
Sequoyah 2 98 HOLDING POWER AT THIS LEVEL TO PERFORM NUCLEAR INSTRUMENTATION SYSTEM CALIBRATIONS AFTER EXITING A REFUELING OUTAGE *
Summer 48 HOLDING POWER AT THIS LEVEL TO PERFORM FLUX MAPPING AND NUCLEAR INSTRUMENTATION CROSS CALIBRATION AFTER EXITING A REFUELING OUTAGE *
Surry 1 100
Surry 2 0 1999-04-18 REFUELING OUTAGE
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
Byron 1 0 1999-05-13 AUTOMATIC REACTOR TRIP FROM 100% POWER DUE TO AN INADVERTENT POWER RANGE HIGH FLUX SIGNAL DURING SURVEILLANCE TESTING (REFER TO EVENT #35710) - EXACT CAUSE UNDER INVESTIGATION *
Byron 2 100
Clinton 0 1999-05-14 REFUELING OUTAGE - MANUAL REACTOR SCRAM FROM 4% POWER DUE TO A LEVEL TRANSIENT ASSOCIATED WITH A FEED REGULATING VALVE MALFUNCTION (REFER TO EVENT #35715) - CAUSE DETERMINED TO BE BINDING ON PART OF VALVE THAT GIVES FEEDBACK TO CONTROL SYSTEM *
D.C. Cook 1 0 1997-09-08 MAINTENANCE OUTAGE
D.C. Cook 2 0 1997-09-09 REFUELING OUTAGE
Davis-Besse 100
Dresden 2 99 *
Dresden 3 99
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 0 1999-05-08 MAINTENANCE OUTAGE
Palisades 0 1999-05-07 MAINTENANCE OUTAGE - REACTOR COOLANT SYSTEM SOLID - HEATUP IN PROGRESS *
Perry 1 100
Point Beach 1 0 1999-05-14 MANUAL REACTOR TRIP FROM 100% POWER AND MANUAL SAFETY INJECTION DUE TO A STEAM LEAK ON THE 4B FEEDWATER HEATER STEAM SIDE (REFER TO EVENT #35714) - BREAK REPORTED TO BE 27" LONG AND APPROXIMATELY ½" WIDE *
Point Beach 2 52 HOLDING POWER AT THIS LEVEL TO PERFORM INSPECTION ON THE #4 FEEDWATER HEATERS *
Prairie Island 1 0 1999-04-16 REFUELING OUTAGE - FUEL RELOAD COMPLETE
Prairie Island 2 100
Quad Cities 1 100
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 99 HOLDING POWER AT THIS LEVEL TO PERFORM TURBINE BYPASS VALVE TESTING *
Palo Verde 3 100
River Bend 1 0 1999-04-03 REFUELING OUTAGE - FUEL SHUFFLE TEMPORARILY STOPPED *
San Onofre 2 100
San Onofre 3 0 1999-05-13 MANUAL REACTOR TRIP FROM 97% POWER DUE TO LOSS OF BOTH FEEDWATER PUMPS (REFER TO EVENT #35713) - CAUSE DETERMINED TO BE A FAILED RELAY IN THE FEEDWATER REGULATING VALVE CONTROL SYSTEM WHICH CAUSE VALVE CLOSURE AND HIGH DISCHARGE PRESSURE ON BOTH PUMPS *
South Texas 1 100
South Texas 2 100
Waterford 3 100
Wolf Creek 1 100 *

* - 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.