Pages that link to "PNO-III-88-002, on 880111,reactor Tripped & HPCI & RCIC Sys Triggered Automatically Due to Trip of One Reactor Feedwater Pump.Caused by Feedwater Control Sys Power Supply Failure. Power Supply Replaced"
Jump to navigation
Jump to search
The following pages link to PNO-III-88-002, on 880111,reactor Tripped & HPCI & RCIC Sys Triggered Automatically Due to Trip of One Reactor Feedwater Pump.Caused by Feedwater Control Sys Power Supply Failure. Power Supply Replaced:
Displayed 50 items.
- PNO-III-85-098, on 851117,between 17,000 & 35,000 Gallons of Radioactive Water Released from Ruptured Seam in Condensate Storage Tank.Water Radioactivity Less than 0.4% of Regulatory Limit for Offsite Release (← links)
- PNO-III-85-083, on 850917,leak Observed in East Steam Bypass Line.Transient Power Spike Observed While Attempting to Isolate Line & Open Valve.Cause of Transient Not Determined. Cracked Piping Around Valve Under Investigation (← links)
- PNO-III-85-077, on 850904,leak Rate Test Connection Valve Installed on 850620 in Containment Sampling Sys Found Open & Attached Line Uncapped,Due to Unrevised Containment Valve Lineup Procedure.Valve Closed (← links)
- PNO-III-88-022, on 880318,received Bomb Threat Possibly Originating on Site.Site Access Restricted to Essential Personnel & Search of Facility Begun.No Explosive Devices Found & No Explosions Occurred.Investigation Continuing (← links)
- PNO-III-88-014, on 880226,portion of Automatic Start Circuitry for Plant Four Diesel Generators Not Fully Tested. Unusual Event Classification Terminated on 880227 Following Manual Reactor Scram.Maint & Testing Outage Begun (← links)
- PNO-III-86-037, on 860418,util Announced Extension of Outage to mid-Jul 1986.Licensee Review of Reevaluation of Design Work Performed on Concrete Embedments & Pipe Supports Will Be Completed by 860501 (← links)
- PNO-III-86-004, RHR Pump Motor Removed Offsite for Testing & Insp Following 851125 Failure Due to Mfg Defect.Pump Replaced.Generic Implications Under Investigation (← links)
- PNO-III-86-024, on 860317,backup Reactor Protection Sys Trip Breaker Failed to Trip During Bus a Transfer from Primary Electrical Supply.Caused by Repeated Testing.Manual Scram Inserted.Investigation Underway (← links)
- PNO-III-85-095, on 851113,unusual Noise & Vibration Observed in Emergency Diesel Generator.Operator Manually Tripped Diesel.Preliminary Evaluation Indicates Damage to Connecting Rod Bearing for Upper Crankshaft & Upper Piston Skirt (← links)
- PNO-III-85-076, on 850825,recirculation Pump B Problem Resulted in Brief Power Increase from 2.9 to 8.8%.Reactor Operators Tripped Pump After Failing to Reduce Pump Speed. Testing Disclosed No Problems W/Speed Control Circuitry (← links)
- PNO-III-85-070, on 850806,Monroe County Board of Commissioners Requested Full Investigation of Operational Procedures & Employee Credentials Due to 850702 Unplanned Criticality Not Reported to NRC Until 850715 (← links)
- PNO-III-85-066, on 850729,low Svc Water Flow Alarm Received During Surveillance Testing of Div I Diesel Generator. Generator Manually Tripped.Caused by Closed Bypass Valve in Line Returning Water to Reservoir.Investigation Underway (← links)
- PNO-III-85-058, on 850702,reactor Brought to Criticality W/O Shift Supervisor Realizing Incident.Caused by Reactor Operator Failing to Follow Proper Procedures for Moving Control Rods in Full Out Position.Incident Being Reviewed (← links)
- PNO-III-85-055, on 850709,reactor Tripped on Low Water Level. Caused by Operator Inattentiveness to Level Indicator.No ECCS Injection Occurred (← links)
- PNO-III-80-054, on 800318,licensee Informed Region 3 That Channel 7 News in Detroit,Mi Plans to Televise 800321 Interview W/Site Contractor Employees Re Allegations of Improper Receipt Insp of Small Bore Pipe (← links)
- PNO-III-80-032, on 800219,correspondents from ABC 20/20 Program Will Interview Regional Director & Other Members Re NRC Investigation Into Allegations of Falsification of Qualification Records of Personnel Doing Design Work (← links)
- PNO-III-88-071, on 880809,brick Thrown Through Windshield of Contractor Vehicle & Driver Assaulted by Picketers.Incident Being Investigated by Monroe County Sheriff Dept.State Will Be Informed (← links)
- PNO-III-88-065, on 880723,unidentified Drywell Leakage Forces Shutdown.Leakage Believed Coming from RCIC Inboard Steam Isolation Valve & Two Valves in Reactor Water Cleanup Sys. Repairs,Maint & Insp Activities Planned (← links)
- PNO-III-88-064, on 880713,pressure Transient in RWCU Sys Caused Compression Fitting on Instrument Line to Separate, Releasing Water & Steam Contaminated W/Radioactivity in Reactor Bldg.Caused by Failed Fitting.Damaged Line Isolated (← links)
- PNO-III-87-101, on 870726,licensee Received Bomb Threat from Caller Angry Because Place of Residence Lost Power During Storm.Security Personnel Notified & Search Procedures Implemented.No Bomb Discovered (← links)
- PNO-III-88-019, on 880306,weapon Incident Involving Security Guard Occurred When During Verbal Confrontation One Security Guard Pointed Handgun at Second Guard.Individual Suspended & State of Mi Notified (← links)
- PNO-III-94-078, on 941002,planned anti-nuclear Demonstration Held on Public Highways at Road Intersections Leading to Access Roads & owner-controlled Area Gates to Plant.Media Covered Event.State of Mi Informed (← links)
- PNO-III-88-003, on 880115,regional Administrator Authorized Licensee to Exceed 75% for First Time & Proceed Up to 100% Power.On 880116,licensee Began Increasing Power But Encountered Vibration Problems on Two Main Steam Lines (← links)
- ML20195H152 (redirect page) (← links)
- PNO-III-88-002 (redirect page) (← links)
- PNO-III-98-055, on 981113,licensee Shut Unit Down to Repair Steam Leak from Reactor Feedwater Check Valve.Valve Is SR & Would Provide Containment Isolation Function Under Accident Conditions (← links)
- PNO-III-88-001, on 871231,reactor Scrammed from 75% Power as Result of High Water Level in Reactor,Caused by Personnel Error During Installation of Auxiliary Computer Intended to Monitor Feedwater Heater Temp (← links)
- PNO-III-86-008, on 860125,roving Fire Watch Discovered Burning Insulation on Exhaust Line of Emergency Diesel Generator 13.Caused by Oil Soaking Insulation During Prior Disassembly & Oil Flushing.Fire Extinguished.Leak Repaired (← links)
- PNO-III-88-052, on 880528,water Hammer in RWCU Sys Damaged Fitting on 5/8 Inch Instrument Line & Caused Leak of Steam & Water Into RWCU Sys Pump Room.Caused by Water Hammer. Instrument Line Repaired (← links)
- PNO-III-87-048, on 870402,util Informed Region III That Some Licensed Operators May Not Have Attended All of Required Lectures of Requalification Program.Unit Will Not Restart, Pending Review of Program (← links)
- PNO-III-86-077, on 860806,fire & Electric Overload Alarm Received.Fire Located in Cubicle Containing Power Supply Breaker.Cause Unknown.Fire Extinguished.Power Supply Breaker & Affected Motor Control Ctr Inspected (← links)
- PNO-III-94-010, on 940216,licensee Announced Plan to Release Up to 1.5 Million Gals of Slightly Contaminated Water from Plant.Water Associated w/931225 Turbine Accident at Plant (← links)
- PNO-III-94-090, on 941219,reactor Operators Began Startup of Plant 2 Reactor Following Recovery from Turbine Generator Failure & Fire on 931225 (← links)
- PNO-III-86-067, on 860708,Monroe County Board of Commissioners Adopted Resolution,By 5 to 3 Vote,Requesting Congressman Dingell to Hold Hearings on Adequacy of GE Mark 1 Containment (← links)
- PNO-III-87-001, on 870102,three Small Steam Leaks Discovered on Two of Four Main Steam Lines.During Power Reduction for Shutdown,Main Turbine Tripped on 18% Power.Cause Under Investigation.Instrument Lines Will Be Temporarily Plugged (← links)
- PNO-III-86-069, on 860715,full Scram & ECCS Actuation Occurred During Heatup of Reactor Pressure Vessel.Approx 10 Gallons of Water Injected Into Vessel.Caused by Pressure Spike from Flow Perturbation.State of Mi Informed (← links)
- PNO-III-86-097, on 860912,authorization Granted to Increase Power Level to 20%.Power Escalation Expected This Wk.Power Increase Previously Recommended for 860910 (← links)
- PNO-III-98-015, on 980201,reactor Scrammed from 96% Power Following Trip of Main Turbine.Main Turbine Trip Resulted from Main Generator Load Rejection Protective Signal. Investigation Continuing (← links)
- PNO-III-87-055, on 870410-11,licensee Identified Several Steam Leaks in Main Steam Line & HPCI & RCIC Sys Declared Inoperable.Caused by Cracked Welds & Blown Fuse, Respectively.Reactor Shut Down for Steam Line Repairs (← links)
- PNO-III-87-075, on 870521,licensee Shut Unit Down from 7% Power to Repair Valve Packing Leak Detected on 870520 in Rwcu.Source of Leak Determined & Valve Opened & Closed to Stop Leakage Through Packing (← links)
- PNO-III-86-088, on 860902,normal Plant Shutdown Began for Repair of Malfunctioning torus-to-reactor Bldg Vacuum Breaker Isolation Valve.Repair Effort Expected to Take More than 48 H.Addl Maint Will Be Conducted During Shutdown (← links)
- PNO-III-86-136, on 861117,283,000 Gallons of Water Lost from Condensate Storage Tank Following Maint on Valve.Caused by Breaking of Weld to HPCI Test Return Pipe.Radwaste Spill Occurred During Transfer of Spilled Water (← links)
- PNO-III-87-103, on 870727,licensee Reduced Power to Approx 2% to Repair Feedwater Check Valve Which Was Leaking. Unusual Event Under Licensee Emergency Plan Was Declared,Due to Required Shutdown (← links)
- PNO-III-86-148, on 861217,guns,knives,ammunition & Marijuana Found in Possession of Truck Driver Seeking Entrance to Protected Area.Driver Denied Access & Arrested by State Police.Driver Involved W/Paramilitary Organization for Hire (← links)
- PNO-III-90-026, on 900410,reactor Scrammed When Inboard MSIVs Began to Drift Shut Because of Loss of Pressure in Containment Pneumatic Nitrogen Sys (← links)
- PNO-III-89-028, on 890417,fire Occurred in Ofc Switchgear in Room in Bldg within Plant Protected Area.Fire Extinguished. Local Fire Marshall Investigating Incident & Extent of Damage (← links)
- PNO-III-89-063, on 890922,picketers Protested Licensee Use of Nonbldg Trade Union Personnel to Perform Insp & Maint Work During Outage by Disrupting Outage Contractor Traffic from Entering Gate.Two Arrests Made by County Sheriff Dept (← links)
- PNO-III-87-130, on 871006,loaded .25 Caliber Automatic Pistol Found During Search of tractor-trailer Delivering Empty Radwaste Container to Plant Protected Area.Individual Denied Site Access & Detained Until Arrival of Police (← links)
- PNO-III-87-133, on 871009,licensee Authorized to Resume Operations Following Maint Outage.Limitation of 50% Power Remains in Effect.Licensee Will Provide Monthly Repts on Status of Preventive Maint Program & Improvement Plans (← links)
- PNO-III-87-009, on 870114,Safe Energy Commission of Michigan (Sec) Announced Results of Investigation Into Licensee Safeteam Program.Rept Contends Safeteam Program Failure.Sec Plans to File 2.206 Petition W/Nrc (← links)