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| Issue date | Title | Topic | |
|---|---|---|---|
| ML20029A546 | 12 February 1991 | Special Rept 91-01:on 910113,inoperable Condenser Bay Sprinkler Sys 2 Not Restored within 14 Days.Caused by Steam Leak in Vicinity of Sprinkler Head.Sprinkler Will Be Replaced During Refueling Outage 13R | Locked High Radiation Area |
| ML20043A790 | 11 May 1990 | Special Rept 90-03:on 900412,Fire Diesel Pump 1-1 Not Restored to Functional Status within 7 Days.Pump Removed from Svc to Install Mod.Mod Completed,Tested & Returned to Functional Status on 900420 | |
| ML20012F517 | 3 April 1990 | Special Rept 90-02:on 900309,stack Radioactive Effluent Monitoring Sys High Range Monitor Not Repaired within 7 Days,Per Tech Spec 3.13.H.Caused by Acceptance Criteria Test Procedure.Test Procedure Revised | |
| ML19351A300 | 11 October 1989 | Special Rept 89-03:on 890904,during Weekly Surveillance of Fire Barrier Doors,Door Between Fire Zones RB-FZ-1E & RB-FZ-1F4 Did Not Meet Acceptance Criteria.Door Unable to Latch W/O Assistance.Fire Watch Established & Door Repaired | Fire Barrier Fire Watch |
| ML20028D651 | 7 January 1983 | RO 82-9:on 821208,temp Sensor Instrumentation Located Upstream of Us Route 9 Bridge Did Not Meet Overall Sys Accuracy Limits.Caused by Downdrift of Temp Transmitter Zero & Span Adjustments.Temp Transmitter Recalibr | |
| ML20028D663 | 7 January 1983 | RO 82-10:on 821210,during shutdown,364 Dead or Severely Stressed Fish Collected.Caused by Temp in Discharge Canal Below Lethal Temp for Affected Species | |
| ML20050D999 | 2 April 1982 | RO 50-219/82-20/01P:on 820401,abnormal Degradation of Primary Containment Identified,Based on MSIV Leak Rates Outside of Acceptable Limits.Cause Under Investigation.Msivs Adjusted & Repaired | Packing leak |
| ML20050D547 | 1 April 1982 | RO 50-219/82-19/01P:on 820331,results of Leak Rate Testing on Main Steam Isolation Drain Valves Identified Abnormal Degradation of Primary Containment.Cause Unknown.Valve V-1-106 Repaired & Valve V-1-111 Will Be Replaced | |
| ML20049H471 | 19 February 1982 | RO 82-10/01P:on 820218,determined Apparent Deficiency in Safety Evaluation 218.77-81 Re safety-related Sys.Electrical Fire on 820109 Caused Deluge Sys to Actuate.Ac & Dc Ground Faults Occurred Due to Water Damage | |
| ML20041A982 | 11 February 1982 | RO 82-06/01P:on 811203,control Power Fuses 16F301A,16F302A, 16F303A & 16F304A Removed from Svc for Maint on Electromatic Relief Valve Pressure Switch,Rendering Valve a & Automatic Depressurization Sys Inoperable.Switch Replaced | |
| ML20040F498 | 1 February 1982 | RO 82-01:on 820117,fire Suppression Water Sys Declared Inoperable.Caused by Inoperability of Fire Diesels Due to Extremely Low Temps.Space Heaters Repaired & Returned to Svc.Fuel Oil Temp Problem Under Investigation | |
| ML20040C673 | 18 January 1982 | RO 219/82-01:on 820117,fire Diesels 1-1 & 1-2 Shut Down for Maint,Rendering Fire Suppression Water Sys Inoperable.Caused by Frozen Cooling Water Lines & Fuel Oil Due to Failure of Two Space Heaters.Heaters Replaced | |
| ML20040C631 | 22 December 1981 | Nonroutine Environ Operating Rept 50-219/81-7-1:on 811207, Intake Temp Was 37.3 F & Discharge Temp 61.9 F Resulting in Temp Difference of 24.6 F Exceeding Permit Level of 23 F. Caused by Grass Clogging Intake & Reducing Flow | |
| ML20040C626 | 22 December 1981 | Nonroutine Environ Operating Rept 50-219/81-6-2:on 811121, Dilution Pump 1-2 Tripped Leaving Only Dilution Pump 1-1 Operating for More than 15 Minutes & Ambient Water Temp Less than 60 F.Cause of Trip Not Determined | |
| ML20040C615 | 22 December 1981 | Nonroutine Environ Operating Rept 50-219/81-4-2:on 811124, Dilution Pump 1-2 Tripped Leaving Only Dilution Pump 1-3 Operating for More than 15 Minutes & Ambient Water Temp Less than 60 F.Cause of Trip Not Determined | |
| ML20040C620 | 22 December 1981 | Nonroutine Environ Operating Rept 50-219/81-5-2:on 811202, Dilution Pump 1-2 Tripped Leaving Only Dilution Pump 1-3 Operating for More than 15 Minutes & Ambient Water Temp Less than 60 F.Caused by High Oil Temps Due to Clogged Screen | |
| ML20040C607 | 22 December 1981 | Nonroutine Environ Operating Rept 50-219/81-3-2:on 811128, Less than Two Dilution Pumps Were Operating for Greater than 15 Minutes & Ambient Water Temp Was Less than 60 F.Caused by Loose Pump Impeller on Pump 1-1 | |
| ML20039B283 | 10 December 1981 | RO 50-219/81-65-01P:on 811203 & 09,two Isolation Valves for Isolation Condenser Sys Found to Have Defects & Valve V-14-30 Found Inoperable.Damaged Threads in Lower Part of Stem Nut Repaired.Cause Under Investigation | |
| ML20038C716 | 9 December 1981 | RO 50-219/81-64/01P:on 811203,containment Spray High Drywell Pressure Switches IP-154A,IP-15B,IP-15C & IP-15D Tripped at Value Greater than Tech Specs.Caused by Instrument Repeatability.Switches Reset | |
| ML20010E713 | 28 August 1981 | RO 50-219/81-42/01P:on 810828,stack Gas Not Continuously Monitored as Required by Tech Spec Due to Trip of Stack Gas Sample Pump B.Probably Caused by Failure of Bearings &/Or Micarta Vanes in Pump | |
| ML20009E347 | 15 July 1981 | RO 81-030/01P-0:on 810714,during Required Surveillance at steady-state Power Standby Gas Treatment Sys 1 Failed to Start & Reactor Bldg Main Exhaust Valve V-28-22 Failed to Close.Caused by Faulty Tube Flow Sensor | |
| ML20004C840 | 1 June 1981 | Ro:On 800728 & 1219,data from 10-meter Wind Direction Monitoring Sys Was Lost.Caused by V76 Central Computer Disk Failure & Simultaneous Electronic Failure of Esterline Angus L1152S Recorder.Equipment Repaired | |
| ML19345H254 | 27 April 1981 | RO 81-001:on 810415 & 16,two Dilution Pumps Tripped & Reserve Pump Would Not Start.Caused by Component Failure. Flow Switch Jumpered After First Event,Lube Oil Cooler Switch Reset After Second | |
| ML19343B433 | 17 December 1980 | RO 50-219/80-13:on 801204,plant Intake Water Level Reached Critically Low Elevation,Affecting Supply of Cooling Water to Main Condenser,Reactor & Turbine Bldgs.Caused by Environ & Svc Conditions.Dilution Pumps 1-2 & 1-3 Restarted | |
| ML19347C746 | 17 December 1980 | RO:801121 Fire Diesel 1-2 Removed from Svc to Determine Cause of Failure to Start Automatically on Decrease in Sys Pressure.Caused by Failure of Corrosion Resistor Element in Cooling Water Line Resulting in Diesel Overheat | |
| ML19345C811 | 2 December 1980 | Nonroutine Environ Operating Rept 50-219/80-12:on 801122 During Reactor Shutdown W/Three Circulating Pumps in Svc, Water Temp in Discharge Canal Fell Below Lower Lethal Temp, Resulting in Fishkill.Blocking Devices Considered | |
| ML19350A064 | 25 November 1980 | Nonroutine Environ Operating Rept 80-219/80-11:on 801118, Fish Were Found Dead in Creek.Caused by Apparent Distraction from Fall Migration Due to Warm Water from Facility. Installation of Blocking Devices Under Review | |
| ML19345C341 | 21 November 1980 | Nonroutine Environ Operating Rept 50-219/80-10:on 801111,ETS Limiting Condition Exceeded When Less than Two Dilution Pumps Worked for 25 Minutes W/Ambient Intake Water Temp at Less than 60 F.Caused by Unusual Svc Condition | |
| ML19345B436 | 21 November 1980 | Nonroutine Environ Operating Rept 50-219/80-10:on 801111, Dilution Pump 1-2 Tripped.Caused by Debris in Barnegat Bay Clogging Pump Seal Water Strainers,Reducing Pressure.Lines cleared.Long-term Corrective Action Being Reviewed | |
| ML19340C179 | 6 November 1980 | RO 50-219/80-49/1P:on 801105,while Removing Isolation Condenser B from Svc to Repair Leak on Isolation Valve V-14-19,valves V-14-1 & V-14-19 Failed to Close.Cause Undetermined | |
| ML19340B546 | 3 November 1980 | RO 50-219/80-9:on 801026,intake Trash Racks,Ristroph Traveling Screens,Turbine Bldg Closed Cooling Water Heat Exchangers & Main Condensers Were Fouled W/Seaweed & Approx 10,000 Blue Crabs Due to Intense 801025 Northeast Storm | |
| ML19339C088 | 3 November 1980 | Nonroutine Environ Operating Rept 50-219/80-9:on 801026, Intake Trash Racks,Ristroph Traveling Screens,Turbine Bldg Closed Cooling Water Heat Exchangers & Main Condensers Were Fouled W/Seaweed & Blue Crabs.Caused by 801025 Storm | |
| ML19347A746 | 25 September 1980 | Nonroutine Environ Operating Rept 50-219/80-08:on 800910, Second Dilution Pump Placed Into Operation W/Bridge Water Temp Below ETS Requirements.Caused by Insufficient Pump Quota.Damaged Pump Removed & Repaired | |
| ML19338E645 | 25 September 1980 | Nonroutine Environ Operating Rept 50-219/80-8: on 800910, Second Dilution Pump Was Not Placed Into Operation W/Water Temp Exceeding 87 F for Period More Tht 2-h 15 Minutes. Caused by Damaged Inboard Motor Bearing | |
| ML19337A834 | 19 September 1980 | Nonroutine Environ Operating Rept 80-7:on 800901,02 & 04, Four Individual Dilution Pump Trips Occurred During Which Inoperative or Reserve Pump Could Not Be Started within Required 15 Minutes.Caused by Component Failure | |
| ML19344E633 | 26 August 1980 | RO 50-219/80-5:on 800808,09,11 & 12,during Steady State power,10 Dilution Pump Trips Occurred,Exceeding Limiting Condition Per Tech Spec.Caused by High Lubricating Oil Temp Due to Low Cooling Water Pressure | |
| ML19344E645 | 26 August 1980 | Nonroutine Environ Operating Rept 50-219/80-6:on 800811,at Steady State Power,Condenser Discharge Temp Exceeded 106 F. Caused by Shift in Meteorological Conditions.Load Reduction Initiated & Temp Stablilized | |
| ML19331E054 | 26 August 1980 | Nonroutine Environ Operating Rept 50-219/80-5.Total of Ten Dilution Pump Trips Occurred Between 800808 & 800812.Caused by High Lubricating Oil Temp.Evaluation Completed for Upgrading Cooling Water Sys | |
| ML19338C663 | 7 August 1980 | Nonroutine Environ Operating Rept 50-219/80-4:on 800727-29, Dilution Pump 1-1 Tripped & Could Not Be Restarted within 15 Minutes.Caused by High Lubricating Oil Temp Due to Low Cooling Water Pressure.Sys Mods Proposed | |
| ML19331B655 | 6 August 1980 | RO 50/219/80-32/1P:while Performing Tour of Reactor Bldg, Discovered Both Doors to Containment Spray Pump Compartments Open.Verification Surveillance to Check Doors Was Not Performed.Pump Room Doors Closed & Dogged Shut | |
| ML19327A255 | 30 July 1980 | Nonroutine Environ Operating Rept 50-219/80-3:on 800720,w/ Us Route 9 Discharge Bridge Temp Above 87.0F,second Dilution Pump Was Not Placed Into Operation,Which Exceeded ETS Limiting Conditions.Caused by Insufficient Pump Quota | |
| ML19330C282 | 29 July 1980 | RO 50-219/80-2:on 791125-26,during Routine Startup,Less than Two Dilution Pumps Were Operating for 9-h & 47 Minutes While Ambient Water Temp Was Less than 60.0 F.Caused by Error in Plant Procedures.Plant Procedures Were Revised | |
| ML19321A540 | 17 July 1980 | RO 50-219/80-27-1P:on 800716,reactor Bldg to Suppression Chamber Vacuum Breaker Sys Inlet Pipe Was Found Blocked by Plastic Bag.Caused by Personnel Error.Plastic Bag Was Removed from Vacuum Breaker Inlet Opening | |
| ML19323J222 | 16 June 1980 | Ro:On 800502,during Routine Surveillance Testing of Isolation Condenser Initiation Pressure Switches,False High Pressure Signal Caused Reactor Scram.Caused by Opening of Gauge Valve.Mod Performed on Instrument Line | |
| ML19323H266 | 6 June 1980 | RO 50-219/80-20-1P:on 800605,following Insp of Fire Barrier, Several Penetrations Found in Degraded Condition.Caused by Delay in Performing Further Fire Watches Attributed to Personnel Error.Fire Watch Being Conducted | Fire Barrier Fire Watch |
| ML19323E419 | 16 May 1980 | RO 50-219/80-17-1P:on 800516,while Performing Control Rod Interference Checks, green-green Rod Position Indication Remained Illuminated While Withdrawing Rod 10-23.Bypass Jumpers Removed & Control Rod Panels Inspected | |
| ML19323C883 | 13 May 1980 | RO-50/219/80-16-1P:on 800420,during Surveillance of Generator Load Rejection Sensors,Pressure Switch Psl D Found Defective.Caused by Mislocated Operating Lever in Switch Housing.Switch Removed & Will Be Replaced | |
| ML19290E928 | 7 March 1980 | RO 50/219/80-13/1P:on 800309,fire Suppression Water Sys Will Be Removed from Svc to Replace Cracked Valve V-9-4.Fire Truck Pumper & Power Supply for Both Core Spray Sys Will Be Available During Repair | |
| ML19305A765 | 21 February 1980 | RO-50/219/80/10-1P:on 800220,during Insp Per IE Bulletin 79-14,three Pipe Hangers in Liquid Poison Sys Found Improperly Installed.Hangers Reset.Restraint in Cleanup Sys Under Design Review to Correct Deficiency | |
| ML19290D762 | 19 February 1980 | RO 50/219/80/8-1P:on 800215,during Insp Required by IE Bulletin 79-14,nine Improperly Installed Pipe Clamps Found on Piping to Isolation Condensers.Caused by Installation Error.Corrective Action Will Be Determined |