Pages that link to "PNO-III-85-047B, steam Feed Rupture Control Actuated in Low Pressure Mode Due to Initiation of Auxiliary Feedwater Flow Following Trip.Caused by Personnel Error.Effects of Error on Subsequent Plant Behavior Still Under Evaluation"
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The following pages link to PNO-III-85-047B, steam Feed Rupture Control Actuated in Low Pressure Mode Due to Initiation of Auxiliary Feedwater Flow Following Trip.Caused by Personnel Error.Effects of Error on Subsequent Plant Behavior Still Under Evaluation:
Displayed 50 items.
- PNO-III-85-080, on 850906,licensee Inadvertently Overpressurized Steam Generator 1.Caused by Testing of Auxiliary Feedwater Pump & Partially Open Feedwater Discharge Valve.Licensee Course of Action Monitored (← links)
- PNO-III-85-086, on 850923 & 24,seven of Eight Main Steam Safety Valves Failed to Meet Criteria During Testing at Wylie Labs.Four Valves Leaked After Reseating & Lift Setpoints of Three Lower than Specs.Valves Will Be Reset (← links)
- PNO-III-85-045, on 850602,reactor Trip & Main Feedwater Pump Trip Occurred.Caused by High Turbine Vibration.Cause of Main Feedwater Pump Trip Under Investigation.Plant in Hot Standby Mode (← links)
- ML20127A373 (redirect page) (← links)
- ML20151X463 (← links)
- PNO-III-88-016, on 880304,licensee Declared Alert After Both Trains of Decay Heat Removal Sys Were Declared Inoperable (← links)
- PNO-III-86-051, on 860601,Local 245 of Intl Brotherhood of Electrical Workers Will Vote on New Contract W/Util.Strike May Begin at Midnight on 860601.Licensee Plans to Implement Contingency Plan (← links)
- PNO-III-93-018, on 930326,licensee Reported That Licensed Senior Reactor Operator Tested Positive for Alcohol During Routine Medical Exam.Individual Not Performing NRC-licensed Duties at Time of Incident,At Site Only for Medical Exam (← links)
- PNO-III-86-033, on 860406,contract Security Guard Made Bomb Threat from Onsite Telephone.Guard Admitted Hoax After Questioning by Security Administrator.Site Access of Guard Revoked & Guard Escorted Offsite (← links)
- PNO-III-87-002, on 870101,unit Tripped from 40% Power Following Trip of Main Feedwater Pump Turbine 1 & on 870103 & 05,main Turbine Control Valve Failed.Caused by Failure of Bearing & Vibration Damage,Respectively (← links)
- PNO-III-86-156, on 861230,steam Leaks in Two of Four Main Steam Lines Discovered.Caused by Vibration Which Occurs When Plant Operated at Less than 50% Power.Instrument Lines to Be Replaced in All Four Steam Lines W/Plugs (← links)
- ML20207G400 (← links)
- PNO-III-87-078, on 870524,security Guard Observed Shift Supervisor to Be Asleep.Licensee Investigation Initiated. Special Insp Team Dispatched to Review Matter (← links)
- PNO-III-87-067, on 870510,suction Valve to motor-driven Feedwater Pump Closed by Operator While Pump in Operation. Caused by Transition from One Sys to Another.Pump Will Be Examined for Damage.State of Oh Notified (← links)
- PNO-III-86-154, on 861222,reactor Tripped from 15% Power During Testing of Integrated Control Sys.Caused by Decrease in Steam Generator Water Level Due to Feedwater Sys Control Valve Closure.Licensee Investigating Cause of Valve Closure (← links)
- PNO-III-86-150, on 861218,licensee Entered Mode 4 from Mode 3 to Investigate 861215 Failure of MSIV to Close Per Tech Specs.Leak in Pressurizer Level Sensing Line Isolation Valve Will Be Repaired.Investigation Continuing (← links)
- PNO-III-86-153, on 861222,reactor Started Up,Terminating Outage Which Began During 850609 Loss of Feedwater Event. Reactor Placed in Mode 1.State of Oh Will Be Informed (← links)
- PNO-III-87-111, on 870821,severe Thunder Storms & Lighting Caused Grid Disturbance & Tripped Main Generator on High Vibration.Expected Automatic Isolation of Steam Supply Did Not Occur.Caused by Faulty Pressure Switch.Switch Repaired (← links)
- ML20249B334 (← links)
- ML20249B208 (← links)
- ML20249A558 (← links)
- ML20249A054 (← links)
- ML20248F128 (← links)
- PNO-III-87-148, low But Detectable Levels of I-131 Measured from Sample of Sewage Sludge Analyzed for Radioactivity,Per Resident 871125 Request.Second Sample Collected & Measured on 871202.No Evidence of Abnormal Releases from Plant (← links)
- ML20236U377 (← links)
- PNO-III-87-102, on 870731,security Shift Supervisor Accidentally Fired .38 Caliber Bullet Into Filing Cabinet. Procedure Changed to Prohibit Supervisors from Checking, Storing or Cleaning Weapons in Ofcs (← links)
- ML20236J880 (← links)
- ML20236J851 (← links)
- ML20236F133 (← links)
- PNO-III-87-118C, on 870911,augmented Insp Team Completed Review of Circumstances Surrounding 870906 Reactor Trip & Subsequent Equipment Problems.Meeting Scheduled for 870915 to Discuss Issues Re Plant Startup & Results of Review (← links)
- PNO-III-87-118, on 870906,reactor Shut Down.Caused by Reactor Trip Due to Various Equipment Malfunctions.Two Valves Removed for Insp & Events & Malfunctions Under Evaluation. Confirmatory Action Ltr Re Plant Startup Will Be Issued (← links)
- PNO-III-87-118D, on 870916,Region III Authorized Restart of Plant.Authorization Ltr Also Requested Meeting W/Nrc in Approx 45 Days.Reactor Shut Down Since 870906 Following Automatic Trip & Multiple Equipment Failure (← links)
- PNO-III-86-119, on 861020,northwest District of Ohio Assoc of Public School Employees Signed Resolution Opposing Member Participation in Planning or Actual Participation in Evacuation Caused by Nuclear Plant Accident (← links)
- PNO-III-87-062, on 870423,two Pressure Switches for Auxiliary Feedwater Pump Turbine Failed.Caused by Foreign Matl on Diaphragms & O-ring Sealing Surfaces.Testing Frequency of Switches Increased.Vendor Plans to Issue Part 21 Notice (← links)
- PNO-III-86-144, on 861209,atty General of State of Oh Filed Petition to Stay Commission 861121 Decision to Authorize Facility Restart.State of Oh Seeks to Delay Facility Restart Until Court Has Opportunity to Review State Concerns (← links)
- PNO-III-87-078A, on 870529,NRC Insp Determined That Shifts Supervisor Observed Dozing on 870524.Licensee Appears to Have Violated NRC Shift & Overtime Policies.Addl Senior Reactor Operators Assigned on Shift to Eliminate Overtime (← links)
- PNO-III-86-144A, on 861212,Sixth Circuit Court of Appeals in Cincinnati Denied State of Ohio Request to Stay Commission 861121 Decision Authorizing Restart of Davis-Besse.Licensee Expects Startup of Reactor During Wk of 971214 (← links)
- PNO-III-87-118B, AIT on-site Activities Concluded.Team Gathered Necessary Info to Evaluate Significance of Event by Interviewing Operators & Other Plant Personnel,Reviewing Records & by Observing Plant Conditions (← links)
- PNO-III-87-023, on 870218,two Electricians Received Flash Burns from Electrical Arc When Circuit Breaker Came Into Contact W/Nonessential 480-volt Motor Control Ctr.Workers Taken to Hosp for Treatment (← links)
- PNO-III-86-122, on 861027,State of Oh Atty General, Aj Celebrezze Will Hold Press Conference Announcing Governor Petitioned NRC to Suspend Plant OL to Allow Task Force Time to Determine Adequacy of Offsite Planning (← links)
- PNO-III-87-019, on 870202,main Feedwater Pump 1/booster Feedwater Pump Turbine Removed from Svc After Plant Operator Heard Change in Noise Level.Shaft Coupling Damage Observed. Cause of Damage & Impact on Test Schedule Not Determined (← links)
- PNO-III-86-051A, on 860602,members of Local 245 of Intl Brotherhood of Electrical Workers Walked Off Job.Caused by Members Rejecting Util Latest Contract Offer.Plant Functions Being Performed by Prof & Mgt Personnel (← links)
- PNO-III-86-025C, existence of Cracking in Reactor Coolant Pump Shaft Not Yet Confirmed.Ultrasonic Testing & Other Nondestructive Tests,Including Dye Penetrant Testing & Microscopic Exam,Failed to Identify Indications of Cracking (← links)
- PNO-III-86-025B, on 860416,discovered That Four Bolts Connecting Shaft & Impeller in Reactor Coolant Pump Flawed. All Four Pump Shafts to Be Replaced W/Modified Shaft Design. Spare Shaft Installed in Pump.State of Oh Notified (← links)
- PNO-III-98-035A, on 980624,reactor Tripped Automatically During Recovery Activities from Tornado Which Damaged Electrical Switchyard & Cut Off Offsite Power Supply (← links)
- PNO-III-98-035, on 980624,plant Automatically Shut Down After Tornado Damaged Electrical Switchyard & Cut Off Offsite Power Supply.Licensee Declared Alert Under Emergency Plan. Licensee Assessing Extent of Damage (← links)
- PNO-III-86-025A, ultrasonic Testing Identified Cracks in Shafts of Two Pumps.Cracks Suspected in Two Other Pump Shafts.Replacement of Four Reactor Coolant Pump Shafts Will Delay Startup Until mid-Oct 1986 (← links)
- PNO-III-85-054B, on 850702,newly Hired Mgt Employee Found Carrying .380 Caliber Handgun in Briefcase.On 850710,util Completed Investigation of Incident,Concluding Individual Did Not Represent Threat.Employee Fired on 850702 (← links)
- PNO-III-85-054, on 850702,security Personnel Discovered Unloaded Handgun in Briefcase of New Employee.Security Supervisor Interviewed Individual & Determined Person Posed No Threat.Further Interviews Will Occur (← links)
- PNO-III-85-054A, on 850702,newly Hired Mgt Employee Found Carrying Loaded .38 Calibr Handgun in Briefcase.Individual Suspended.Investigation Continuing (← links)