Pages that link to "PNO-II-86-045, on 860627,four PORVs Opened,Dropping Primary Sys Pressure from 2,235 Psi to 702 Psi & Temp from 550 F to 450 F in 6 Minutes.Cause Under Investigation.Valves Closed & Safety Injection Initiated"
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The following pages link to PNO-II-86-045, on 860627,four PORVs Opened,Dropping Primary Sys Pressure from 2,235 Psi to 702 Psi & Temp from 550 F to 450 F in 6 Minutes.Cause Under Investigation.Valves Closed & Safety Injection Initiated:
Displayed 37 items.
- PNO-II-96-082, on 961206,Unit 1 Taken Off Line in Order to Investigate/Locate Source of Increase in Unidentified Leakage.Nrc Resident Inspectors Will Continue to Closely Monitor Licensee Recovery Activities (← links)
- PNO-II-88-018, on 880309,unit Tripped from 21% Power Resulting in Feedwater Isolation Which Caused Steam Generator Levels to Decrease (← links)
- PNO-II-85-004, on 850107,initial Criticality Achieved.All Parameters within Predicted Ranges.Low Power Testing Proceeding According to Schedule (← links)
- PNO-II-85-096, on 851018,reactor Shut Down Due to Unidentified RCS Leak of 1.3 Gpm.Cause Under Investigation. Probably Caused by RHR Valve Packing Leak.Plant in Hot Standby for 72 H (← links)
- PNO-II-96-083, on 961214,Unit 2 Shutdown Due to Small Amount of Backleakage Through Injection Sys Discharge Check Valve, Causing Gas Entrainment in B Train of RHR Sys.Nrc Resident Inspectors Observed Unit Shutdown & RHR Testing (← links)
- PNO-II-85-057, on 850606,during Routine Patrol,Breach of Plant Vital Area Discovered.Security Panel in Vent Duct Adjacent to Fire Door Bent Back.Security Officer Posted at Barrier.No Abnormal Conditions Found in Vital Area (← links)
- PNO-II-86-018, on 860225,facility Began Initial Fuel Loading (← links)
- PNO-II-88-047, on 880805,unit Shut Down Due to Primary to Secondary Leak in D Steam Generator.Generator Found to Have Unretrievable Part in Secondary Side During Last Outage.Eddy Current Tests of Two Generators Planned (← links)
- PNO-II-88-044, on 880716,reactor Shut Down for Repair of Failed Charging Pump 2A.Shutdown Exceeded 48 H.Cause of Failure Under Investigation.Disassembly & Replacement of Pump Rotating Element Necessary.Startup Expected on 880721 (← links)
- PNO-II-88-012, on 880208,small Unplanned Gas Released Into Auxiliary Bldg & Ventilated to Atmosphere.Release within Allowable Limits & Not Required to Be Reported to Nrc.States of Sc & Nc Informed (← links)
- PNO-II-99-017, on 990515,indication of Main Generator Ground Fault Was Received While Performing Turbine Startup in Preparation for Placing Unit on Line.Licensee Is Conducting Investigation to Determine Actual Cause of Ground (← links)
- PNO-II-97-066, on 971230,RCS Leakage Requiring Forced Unit Cooldown Occurred.No Radioactive Release Outside of Reactor Containment Facilities Due to Leakage.Licensee Informed States on Nc & Sc (← links)
- PNO-II-86-033, on 860508,Unit 2 Achieved Initial Criticality. All Parameters Near Anticipated Levels.Region II Based & Resident Inspectors Witnessed Event.Util Issuing News Release (← links)
- PNO-II-97-064, on 971229,inadvertent Safety Injection Occurred Due to Operators Failing to Perform Step Which Resulted in Cold Leg Injection Valve Being Left Open. Licensee Engineers Performing Evaluation (← links)
- PNO-II-93-021, on 930503,NRC Duty Officer Notified of Suspension of Licensed Operator Who Admitted to Offsite Arrest for Possession of Cocaine.Region II Monitoring Licensee Ongoing Investigation (← links)
- PNO-II-93-014, on 930324,NRC Duty Officer Notified That Previous Random Screening for Drugs of Licensed Reactor Operator at Plant Had Been Confirmed Positive for Cocaine. State of Sc & Local Officials Have Been Notified (← links)
- PNO-II-86-045 (redirect page) (← links)
- PNO-II-86-041, on 860613,25 Gpm Leak Discovered Inside Containment.Caused by 360-degree Crack in Socket Weld to Flange for Variable Orifice Control Valve Outlet Side.Weld Will Be Analyzed by Westinghouse for Metal Fatigue (← links)
- PNO-II-99-015, on 990503,shutdown in Excess of 72 H Occurred. Licensee Is Still Conducting Investigation Into Cause of Main Generator Protection Lockout & Making Preparations to Inspect & Remove Any Excessive Fouling from Inside Afws (← links)
- PNO-II-86-057, on 860809,while Unit in Hot Standby,Reactor Coolant Pumps Experienced Seal Failure.Leak Initially Estimated at 60 Gpm But Decreased to 30 Gpm After Affected Pump Tripped.Unit Shut Down to Repair Pump Seals (← links)
- PNO-II-85-123, on 851230,two Contractor Vehicles Used to Provide Svc to Cafeteria Were Allowed Escorted Entry Into Licensee Protected Area.One of Vehicle Drivers Produced .38 Caliber Revolver Upon Entering Protected Area (← links)
- PNO-II-85-115, licensee Reported That Transamerica Delaval DG 2B Experienced Two Failures of Main Bearing Number 7 During Test Runs Following tear-down Inspection.Believed That First Failure Due to Inadequately Supported Bearing (← links)
- PNO-II-88-016, approx Six Gallons of Hydrazine Was Discharged Into Lake Wylie from Waste Water Treatment Pond at Catawba Nuclear Station Near York,Sc,Between Hrs of 9:40 Monday Night & 9:20 Tuesday Morning (← links)
- PNO-II-89-012, on 890215,security Guard Claimed to Have Been Assaulted Onsite.Guard Treated & Released from Hosp.Guard Involved in Security Event on 890113 Re Inattentiveness on Post.Guard Claimed Inattentiveness Due to Illness (← links)
- PNO-II-91-004, on 910227,facility Shutdown Exceeded 48 H. Caused by Leaking Exciter Cooling Water Sys.Sys Under Investigation (← links)
- PNO-II-98-037A, on 980807,update Shutdown in Excess of 72 H Made.Licensee Has Cleaned & Satisfactorily Inspected IC Flow Channels.Licensee Identified Discrepancies in Bolting of IC Intermediate Deck Door Frames & Hinges.Conditions Addressed (← links)
- PNO-II-98-037, on 980808,shutdown in Excess of 72 H Occurred. Licensee Inspected Approximately Half of Unit 2 Ice Condenser Bay Flow Channels from Intermediate Deck W/No Ice Obstructions in Excess of TS Limit Identified (← links)
- PNO-II-98-025, on 980507,AFW Sys Declared Inoperable.Licensee Isolated Valves 1CM-127 & 2CM-127 in Units 1 & 2, Respectively,To Prevent Recurrence Until Permanent Corrective Actions Can Be Developed (← links)
- PNO-II-87-033, on 870522,plant Taken Out of Svc to Repair Two Leaks in Resistance Temp Detector Loop on RCS Cold Leg. Shutdown of Greater than 48 H Estimated for Cleanup of Boric Acid & Repair.Unit Will Remain in Hot Standby (← links)
- PNO-II-86-045A, primary Sys Temp Dropped from 550 F to 465 F in 6 Minutes.Reactor Coolant Pumps Operated Throughout Event.Poor Human Factor Design Features Caused Operators Not to Be in Control (← links)
- ML20212A253 (redirect page) (← links)
- PNO-II-86-063, on 860901,plant Shut Down Due to Main Generator Turbine Trip Resulting from phase-to-phase Fault. Investigation of Cause & Full Extent of Damage Continuing. Unit Will Be Out of Svc for at Least 3 Months (← links)
- PNO-II-87-015A, on 870305,two High Temp Bearing Trips Occurred.Caused by Failure of California Controls Eutectic Type Temp Sensors.No Damage,Unusual Wear or Excessive Temps Revealed.Diesel Generator 1-B Journal Bearing Refurbished (← links)
- PNO-II-87-015, on 870305,unit out-of-svc Greater than 48 H. Caused by Damaged Journal Bearing in One Tdi Diesel Generator.Damaged Bearing Found During Routine Maint & Replaced (← links)
- PNO-II-86-045B, on 860628-0701,augmented Insp Team Sent to Plant.Corrective Action Documented in 860630 Confirmatory Action Ltr Being Monitored by NRC Resident Inspectors.Plant at 6% Power (← links)
- PNO-II-88-018A, suppl to PNO-II-88-018A,issued on 880309. NRC Augmented Insp Team on 880309 Has Completed Onsite Segment of Intended Mission.Licensee Given Concurrence to Restart Unit 2 on 880318 Based on Review of Insp Results (← links)
- PNO-II-82-070, on 820618,radiography Crew Experienced Disconnection of Radioactive Source While Source Outside Shield.Caused Not Stated.Source Safely Returned to Shield (← links)