Pages that link to "NRC Form 368A"
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The following pages link to NRC Form 368A:
Displayed 50 items.
- 05000281/LER-1991-010-03, :on 911031,determined That Damage to C Main Steam Trip Valve/Bypass Valve 2-MS-155 Rendered Valve Incapable of Immediate Closure.Caused by Failure of Yolk Bushing Threads in Valve.Valve Closed (← links)
- 05000281/LER-1988-001, :on 880127,discovered That Leakage Through Containment Isolation Valves TV-SS-201A & TV-SS-201B Greater than ASME Section XI Spec.On 880202,wrong Leads Lifted for Trip Valves.Caused by Impurities in Sys (← links)
- 05000280/LER-1989-042, :on 891031,leak Detected Through Crack in Fillet Weld on Socket Tee Connecting Drain Line to Letdown Line Which Exceeded Allowable Type C Leakage.Caused by Vibration.Line & Valve Configuration Changed (← links)
- 05000281/LER-1989-001-02, :on 890105,loss of Containment Integrity Occurred During Refueling Operations.Caused by Loss of Administrative Controls Due to Procedural Deficiencies. Refueling Integrity Procedures Modified (← links)
- 05000280/LER-1988-046, :on 881231,alarm Received in Control Room Indicating That Valve 1-SW-263 Had Closed.Caused by Personnel Error.Operators Verified That No Fire Existed in Room 3.Valve Opened & Chiller C Restarted (← links)
- 05000280/LER-1988-035, :on 880914,specific Activity Sample of Reactor Coolant Showed Dose Equivalent I-131 Level of 1.04 Microcuries/Cc,Exceeding Tech Spec Limits.Caused by Iodine Spike Due to Fuel Element Defects (← links)
- 05000281/LER-1988-015-02, :on 880626,rod Urgent Failure Annunciator Activated in Control Room.Caused by Failed Circuit Card & Blown Fuse.Failed Circuit Card & Blown Fuse Replaced & Rod Control Sys Tested Satisfactorily (← links)
- 05000281/LER-1995-003, :on 950224, as Found Calibration Test Data for Three RPS Transmitters Not within Allowable Tolerance. Caused by Faulty Pressure Gauge Used in Calibration.Pressure Gauge Replaced & Repeated Calibration Check (← links)
- 05000280/LER-1995-008, :on 950919,pressurizer Safety Valve Found Setpoint Out of Tolerance.Caused by Psvs Being Installed Prior to Start of Most Recent Operating Cycle (← links)
- 05000280/LER-1996-001, :on 951213,ESW Pump Was Inoperable Due to Loss of Missile Protection for Piping.Revised DCP 91-025 (← links)
- 05000280/LER-1996-003-02, :on 960513,control Room Air Handling Units (AHU) Declared Inoperable.Caused by Mechanical Failure. Adjusted 1-VS-AC-2 Backdraft Dampers Counterweight Arm for AHU 1-VS-AC-2 (← links)
- 05000280/LER-1997-005, :on 970502,Unit 1 Power Range Nuclear Instrumentation Was Inoperable Due to Personnel Error.Sro & STA That Were Involved in Event Were Counseled (← links)
- 05000280/LER-1988-043, :on 881110,engineering Evaluation Determined That Recirculation Sprays B & C HX Svc Water Inlet Valve & Outlet Valve Have Undersized Motors.Cause Undetermined. Motors Will Be Replaced Prior to Unit Restart (← links)
- 05000280/LER-1988-014-01, :on 870630,determined That Unique Scenario Could Exist Whereby Auxiliary Feedwater Could Be Lost to Operating Unit.Administrative Controls Established & Safety Analysis Reviewed for high-energy Line Break (← links)
- 05000280/LER-1988-029, :on 880815,reactor Trip & Safety Injection Occurred.Caused by Spurious Initiation of Train a High Consequence Limiting Safeguard.Relay Replaced & Limit Switch on Steam Dump Valve Adjusted (← links)
- 05000281/LER-1988-009-02, :on 880420,component Cooling Water HXs Declared Inoperable.Caused by Vacuum Priming Lines Up to Isolation Valves Not Being Seismically Supported.Engineering Work Request to Install Seismic Supports Made (← links)
- 05000280/LER-1988-011-01, :on 880415,power-operated Relief Valves Failed to Manually Open When Selector Switches Placed in Open Position.Cause Under Investigation.Selector Switches,Air Supply & Valves Examined for Malfunctions (← links)
- 05000280/LER-1988-024, :on 880711,16 Individual Rod Position Indicators for Eight Rods in Each Shutdown Bank a & B Differed from Group Demand Step Counter by Greater than 12 Steps.Caused by Drift in Subj Indicators (← links)
- 05000280/LER-1988-017-01, :on 880606,discovered Debris in Temporary Discharge Cone Strainer & Recirculation Spray Sump Pumps. Caused by Inadequate Insp Program.Containment Sump & Pump Screen Surveillance Will Be Implemented (← links)
- 05000280/LER-1988-009-01, :on 880311,specific Activity Sample of Reactor Coolant Showed dose-equivalent I-131 Level of 1.5 Uci Which Exceed Tech Spec Limit.Caused by Fuel Element Defect in Reactor Core (← links)
- 05000281/LER-1988-002-02, :on 880202,containment Isolation Valves Declared Inoperable Due to Leakage in Excess of Spec Value. Cause Not Determined.Valves Will Be Replaced/Repaired Based Upon Failure Analysis Results (← links)
- 05000280/LER-1987-027, :on 871027,electrical Short in Train a Turbine Bldg Flood Control Panel Caused Spurious Completion of Flood Protection Circuit.Caused by Leak on Access Manway of Moisture Separator Reheater 1-MS-E-1B (← links)
- 05000281/LER-1987-005-03, :on 871014 Electrician Inadvertently Completed Flood Protection Circuit Causing Two of Four Condenser Circulating Water Inlet Valves to Close.Caused by Personnel Error.Procedure Written for Maint Personnel (← links)
- 05000280/LER-1987-022, :on 870830 & 0903,main Control Room Ventilation Isolation Occurred.Caused by High Voltage Output on Chlorine Gas Detector.Chemistry Dept Verified That No Chlorine in Main Control Room.Ventilation Sys Realigned (← links)
- 05000280/LER-1987-015-01, :on 870717,individual Rod Position Indicators for Shutdown Banks a & B & Control Banks A,B,C & D Declared Inoperable.Caused by Banks Indicating Below Demand Counter Position Due to Dirty Dc Power Contacts (← links)
- 05000281/LER-1986-018, :on 861112,discovered Environ Qualified Components Not Installed Per Approved Raychem Guidelines. Caused by Inadequate Training of Personnel Installing Matl. Procedures Revised & Addl Training Conducted (← links)
- 05000272/LER-1997-008, :on 970321,inadequate Surveillance Testing of PORV Accumulators & Check Valves Was Attributed to Lack of Adequate Controls for Development & Maintenance of TS Surveillance Procedures.New Procedure Made (← links)
- 05000272/LER-1997-001-02, :on 970117,discovered Inadequate IST Surveillance of B Injection Inlet Valves.Caused by Inadequate Communication Between EOP & Ist.Reviewed Salem EOPs for Similar Problems (← links)
- 05000272/LER-1996-041, :on 961228,surveillance for Radiation Monitors Source Check Required by TS Was Missed.Caused by Lack of Attention to Detail.Reemphasized Mgt Expectations Concerning Surveillance Test Accountability (← links)
- 05000311/LER-1996-015-02, :on 961219,breach of Containment Closure During Core Reload Occurred.Caused by Inadequate Inplementation of Outage Scheduling & Risk Management Requirements.Containment Closure Was Reestablished Using Alternate Isolation Poi (← links)
- 05000272/LER-1996-012-01, :on 960723,potential Loss of Residual Capability Identified.Caused by Inadequate Valve Design.Rhr Flow Control Valves Replaced (← links)
- 05000272/LER-1994-015, :on 941018,determined That Refueling Water Storage Tank Volume Was Less than Required.Cause Not Determined.Properly Adjusted Transmitters & Returned RWST Level to Specification (← links)
- 05000272/LER-1995-016-01, :on 950720,difference Between Containment Design Parameters & Accident Analysis Was Discovered.Caused by Inadequate 10CFR50.59 SEs for Changes in Containment Temp Profiles.Changed UFSAR & TS (← links)
- 05000272/LER-1996-002, :on 960110,evaluation Determined That Motor Operated Gate Valves Susceptible to Pressure Locking & Thermal Binding.Caused by Inability to Meet GL 95-07 Criteria.Test Procedure Changed (← links)
- 05000311/LER-1995-008-02, :on 951215,Tech Spec 4.9.9 Missed Isolation Testing Discovered.Caused by Lack of Adequate Controls to Ensure All Testing Requirements Addressed.Procedure S2.IC-FT.RM--0088(Q) Revised (← links)
- 05000311/LER-1995-004, :on 950607,EFS Actuation Occurred During Unit 2 Controlled Shutdown Per TS 3.0.3.Caused by Inadequate Mgt Oversight of Operability Determination Process.Trained All Licensed Operators (← links)
- 05000272/LER-1995-020-01, :on 950914,vital 230 Volt MCCs Declared Inoperable Due to Failed Bus Bar Bolting.Caused by Stress Corrosion Cracking.Design Change Package DCP-1ER-0098 Implemented to Replace Bus Bolts W/Carbon Steel Bolts (← links)
- 05000255/LER-1996-004, :on 960118,SIS Disabled W/Primary Coolant Sys Greater than 300 F.Caused by Personnel Error.Permanent Maint Procedure to Disable/Enable SIS Actuation on Low Pressurizer Pressure Will Be Revised to Align W/Ts (← links)
- 05000255/LER-1995-001-01, :on 950302,left Channel DBA Sequencer Malfunctioned & Started Most of Left Channel Safeguards Equipment.Caused by Failure of DBA Sequencer micro-processor Module.Svc of Mfg of Sequencer Hardware Will Be Utilized (← links)
- 05000255/LER-1987-014, :on 870427,primary Data Logger Computer Memory Failed Causing in-core Alarm Sys to Be Inoperable.Caused by Operator Misinterpreting Tech Spec Action Statement.Tech Spec Revised (← links)
- 05000255/LER-1987-013, :on 870322,personnel Identified That Water Flow Switch Fire Detector WFS-262 (Kp;Fis) Inoperable.Caused by Failure to Perform 1 H Fire Watch.Quarterly Test Revised to Include Refs to Appropriate Tech Specs (← links)
- 05000296/LER-1997-004-02, :on 970414,unplanned Manual Start of EDG During Scheduled Redundant Start Test Occurred.Caused by Personnel Error.Edg 3D Shutdown & Returned to pre-event Configuration (← links)
- 05000296/LER-1997-002-03, :on 970410,HPCI Declared Inoperable.Caused by Personnel Error.Operations Personnel Stopped Instrument Mechanics Testing & Returned HPCI to Standby Readiness (← links)
- 05000296/LER-1996-004, :on 960717,loss of ECCS Division I & Division II Instrumentation Renders ECCS Equipment Inoperable.Caused by Loss of Inverter Output.Failed Components Replaced in Atu Inverter Circuitry & Instrumentation Logic Restored (← links)
- 05000296/LER-1997-001-04, :on 970305,loss of Offsite Power on Unit 3 During Refueling Outage Resulted from Shorted Component. Replaced Relays Involved in Event W/Less Sensitive Relays (← links)
- 05000260/LER-1996-004-01, :on 960425,Unit 2 SRV Pilot Cartridges Failed Setpoint Acceptance Tests.Caused by SRV Pilot Disc/Seat Bonding Resulting in SRV Setpoints Deviating.Valves Currently Being Retested & Recertified (← links)
- 05000260/LER-1996-008, :on 961101,Unit 2 Main Steam SRV Pilot Cartridges Failed Setpoint Tolerence Bench Tests.Caused by SRV Pilot Disc/Seat Bonding Resulting in SRV Setpoints.Srv Pilot Cartridges Replaced (← links)
- 05000296/LER-1996-006-03, :on 961106,loss of ECCS Div 1 Instrumentation Rendered ECCS Equipment Inoperable.Caused by Cleared Fuse in ECCS Div.Fuse Replaced & Addl Testing to Challenge Replacement Fuse Performed (← links)
- 05000260/LER-1994-010, :on 941005,loss of ECCS Division II Instrumentation Resulting from Blown Fuse in Atu Inverter. Caused by a Failed Capacitor.Blown DC Input Fuse Was Replaced (← links)
- 05000400/LER-1987-020, :on 870413,reactor Trip Setpoints on All Three Overtemp Delta Temp (Odt) Bistables Incorrectly Set.Caused by Apparent Design Oversight in Odt Circuit Design & Vendor Testing Methodology.Test Procedures Revised (← links)