| | | Reporting criterion |
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| 05000266/LER-1998-001, :on 980102,missed Surveillances Required by Section XI Pressure Tp Constituted Condition Prohibited by Ts.Caused by Inadequate Procedural Control.Procedure Changes Completed to Set Test Frequency Requirements |
- on 980102,missed Surveillances Required by Section XI Pressure Tp Constituted Condition Prohibited by Ts.Caused by Inadequate Procedural Control.Procedure Changes Completed to Set Test Frequency Requirements
| 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000301/LER-1998-001, Forwards LER 98-001-00,describing Mispositioning Event Which Resulted in SG Venting Steam Outside Containment During Plant Heatup.Commitments Are Encl in Rept in Italics | Forwards LER 98-001-00,describing Mispositioning Event Which Resulted in SG Venting Steam Outside Containment During Plant Heatup.Commitments Are Encl in Rept in Italics | 10 CFR 50.73(a)(2)(v), Loss of Safety Function |
| 05000301/LER-1998-001-01, :on 980202,SG Vent Mispositioned During Plant Heatup Were Noted.Caused by Inadequate Procedure Coordination.Subject Vent Valve Was Closed Approx 0928 on 980202 |
- on 980202,SG Vent Mispositioned During Plant Heatup Were Noted.Caused by Inadequate Procedure Coordination.Subject Vent Valve Was Closed Approx 0928 on 980202
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation |
| 05000266/LER-1998-002, :on 980108,failure of High Voltage Station Auxiliary Transformer Occurred Due to Ground in Low Voltage Side Bus Duct.Operability of 1X03 Was Restored & Verified to Be in Operation by Infrared Scan |
- on 980108,failure of High Voltage Station Auxiliary Transformer Occurred Due to Ground in Low Voltage Side Bus Duct.Operability of 1X03 Was Restored & Verified to Be in Operation by Infrared Scan
| 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000301/LER-1998-002, Forwards LER 98-002-00 Re Serious Degradation of Reactor Coolant Pump Component Cooling Water Return Line Check Valve Which May Prevent Closure | Forwards LER 98-002-00 Re Serious Degradation of Reactor Coolant Pump Component Cooling Water Return Line Check Valve Which May Prevent Closure | |
| 05000301/LER-1998-002-01, :on 980313,discovered Serious Degradation of Reactor Coolant Cooling Water Return Line Check Valve.Caused by Service Related Wear.Valve Was Opened,Repaired & Returned to Service |
- on 980313,discovered Serious Degradation of Reactor Coolant Cooling Water Return Line Check Valve.Caused by Service Related Wear.Valve Was Opened,Repaired & Returned to Service
| 10 CFR 50.73(a)(2)(x) |
| 05000266/LER-1998-003-01, Forwards LER 98-003-01 Re Discovery That Flow Rates Were Outside Design Basis of Plant.Rept Revises Corrective Action Commitment Re Replacement of SW Piping to Unit 2 Fan Cooler Motor Heat Exchangers | Forwards LER 98-003-01 Re Discovery That Flow Rates Were Outside Design Basis of Plant.Rept Revises Corrective Action Commitment Re Replacement of SW Piping to Unit 2 Fan Cooler Motor Heat Exchangers | 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition |
| 05000301/LER-1998-003-01, :on 980408,ASME Section XI Pressure Test Program Surveillance Was Missed.Caused by Failure to Consult Latest Rev of Increased Frequency Surveillance List. Condition Rept Will Be Written to Document Requirement |
- on 980408,ASME Section XI Pressure Test Program Surveillance Was Missed.Caused by Failure to Consult Latest Rev of Increased Frequency Surveillance List. Condition Rept Will Be Written to Document Requirement
| 10 CFR 50.73(a)(2)(1) |
| 05000301/LER-1998-003, Forwards LER 98-003-00,describing Discovery That Vent Valve from Reactor Coolant Drain Tank Which Had Been Placed on Increased Frequency Surveillance for Stroke Time Was Not Tested in Time Frame Required.New Commitments in Ital | Forwards LER 98-003-00,describing Discovery That Vent Valve from Reactor Coolant Drain Tank Which Had Been Placed on Increased Frequency Surveillance for Stroke Time Was Not Tested in Time Frame Required.New Commitments in Italics | |
| 05000301/LER-1998-004, Forwards LER 98-004-00,which Describes Operation of Unit W/Eight Hour Average Reactor Thermal Output in Excess of Licensed Limit.Commitments Made within Ltr Encl | Forwards LER 98-004-00,which Describes Operation of Unit W/Eight Hour Average Reactor Thermal Output in Excess of Licensed Limit.Commitments Made within Ltr Encl | 10 CFR 50.73(a)(2)(i) |
| 05000266/LER-1998-004, :on 980114,RCP LO Collection Sys Design Did Not Comply W/App R Section III.0.Caused by Design Mod Conducted in 1981-82 Did Not Rigorously Document Design Basis of Locs. Minor Maint & Matl Repairs Were Initiated & Are Complete |
- on 980114,RCP LO Collection Sys Design Did Not Comply W/App R Section III.0.Caused by Design Mod Conducted in 1981-82 Did Not Rigorously Document Design Basis of Locs. Minor Maint & Matl Repairs Were Initiated & Are Complete
| 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition |
| 05000301/LER-1998-004-01, :on 980424,operations W/Reactor Core Power Level Was in Excess of 1518.5 Mwt.Caused by Failure to Return FT-466V Input Parameter to Off Scan.Input FT-446V Was Removed from on Scan at Approx 1452 |
- on 980424,operations W/Reactor Core Power Level Was in Excess of 1518.5 Mwt.Caused by Failure to Return FT-466V Input Parameter to Off Scan.Input FT-446V Was Removed from on Scan at Approx 1452
| 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(1) |
| 05000266/LER-1998-005, :on 980121,discovered That Control Rod Exercise Test Required Tech Specs Had Not Been Performed as Required. Caused Data Entry Error Into Computerized Maint Planning. Maint Planning Sys Revised |
- on 980121,discovered That Control Rod Exercise Test Required Tech Specs Had Not Been Performed as Required. Caused Data Entry Error Into Computerized Maint Planning. Maint Planning Sys Revised
| 10 CFR 50.73(a)(2)(1) |
| 05000266/LER-1998-006, :on 980122,unanticipated Partial Svc Water Sys Isolation During Special Test Occurred.Caused by Inadequate Test Procedure.Procedure PBTP-77 Will Be Archived W/ Documentation of Deficiencies |
- on 980122,unanticipated Partial Svc Water Sys Isolation During Special Test Occurred.Caused by Inadequate Test Procedure.Procedure PBTP-77 Will Be Archived W/ Documentation of Deficiencies
| 10 CFR 50.73(a)(2)(iv), System Actuation |
| 05000266/LER-1998-007, :on 980123,determined That Relay Installed in 1P-29 turbine-driven Auxiliary Fdw Pump Low Suction Pressure Trip Circuitry Possessed Incomplete Solder Connection.Caused by Incomplete Solder Connection.Circuitry Replaced |
- on 980123,determined That Relay Installed in 1P-29 turbine-driven Auxiliary Fdw Pump Low Suction Pressure Trip Circuitry Possessed Incomplete Solder Connection.Caused by Incomplete Solder Connection.Circuitry Replaced
| |
| 05000266/LER-1998-008, :on 980203,EDG Air Start Motor Solenoid Valves W/Spring Not in Accordance W/Design Occurred.Caused by Use of 275 Psig Solenoid Valve Which Does Not Meet Minimum DC Voltage Available.Solenoid Valves Modified |
- on 980203,EDG Air Start Motor Solenoid Valves W/Spring Not in Accordance W/Design Occurred.Caused by Use of 275 Psig Solenoid Valve Which Does Not Meet Minimum DC Voltage Available.Solenoid Valves Modified
| 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition |
| 05000266/LER-1998-009, :on 980203,inadequate TS Surveillance of under- Voltage Relay Contacts in Safeguards Sequence Circuitry,Was Determined.Caused by Failure to Adequately Test Relay Circuitry.Required Surveillance Testing Completed |
- on 980203,inadequate TS Surveillance of under- Voltage Relay Contacts in Safeguards Sequence Circuitry,Was Determined.Caused by Failure to Adequately Test Relay Circuitry.Required Surveillance Testing Completed
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(1) |
| 05000266/LER-1998-010-01, Forwards LER 98-010-01,re Containment Spray Channel Functional Testing.Commitments Made within Ltr,Encl | Forwards LER 98-010-01,re Containment Spray Channel Functional Testing.Commitments Made within Ltr,Encl | 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000266/LER-1998-010, :on 980213,inadequate TS Surveillance of Containment Spray Logic Was Noted.Caused by Failure to Verify Switch Position.Bistable Switch Continuity Was Verified within 24 H of Determining Testing Was Inadequate |
- on 980213,inadequate TS Surveillance of Containment Spray Logic Was Noted.Caused by Failure to Verify Switch Position.Bistable Switch Continuity Was Verified within 24 H of Determining Testing Was Inadequate
| 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000266/LER-1998-011, :on 980214,missed TS Surveillance of Radiation Monitor Prior to Discharge Occurred.Caused by Failure to Adhere to Procedures Based on Failure to Recognize.Thorough Root Cause Evaluation Performed |
- on 980214,missed TS Surveillance of Radiation Monitor Prior to Discharge Occurred.Caused by Failure to Adhere to Procedures Based on Failure to Recognize.Thorough Root Cause Evaluation Performed
| 10 CFR 50.73(a)(2)(1) |
| 05000266/LER-1998-012, :on 980330,discovered That twenty-seven Containment Penetration Pressure Tests Had Not Been Performed.Caused by Inadequate Program Monitoring & Mgt. Submitted Relief Request & Initiated Root Cause Evaluation |
- on 980330,discovered That twenty-seven Containment Penetration Pressure Tests Had Not Been Performed.Caused by Inadequate Program Monitoring & Mgt. Submitted Relief Request & Initiated Root Cause Evaluation
| 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(1) |
| 05000266/LER-1998-013, :on 980416,discovered That Discharge Pressure Indicator Root Valves for Containment Spray Pumps Were Not Shut as Required.Caused by Failure to Maintain Adequate Configuration Control.Shut Subject Root Valves |
- on 980416,discovered That Discharge Pressure Indicator Root Valves for Containment Spray Pumps Were Not Shut as Required.Caused by Failure to Maintain Adequate Configuration Control.Shut Subject Root Valves
| |
| 05000266/LER-1998-014, :on 980417,ESF Actuation Automatic Start of Swp Occurred.Caused by Inadequate Procedure That Failed to Provide Info on Expected Start of Swps P32A & P32B.Revised Procedure Iwp 95-048-02 to Provide Necessary Info |
- on 980417,ESF Actuation Automatic Start of Swp Occurred.Caused by Inadequate Procedure That Failed to Provide Info on Expected Start of Swps P32A & P32B.Revised Procedure Iwp 95-048-02 to Provide Necessary Info
| |
| 05000266/LER-1998-015, :on 980420,containments Fan Cooler Test Results Were Outside Acceptance Criteria.Cause Is Still Being Evaluated.Pressure Washing of Air Side of Cooling Coils for All Four Unit 1 CFCs Has Been Completed |
- on 980420,containments Fan Cooler Test Results Were Outside Acceptance Criteria.Cause Is Still Being Evaluated.Pressure Washing of Air Side of Cooling Coils for All Four Unit 1 CFCs Has Been Completed
| 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2) |
| 05000266/LER-1998-015-01, Forwards LER 98-015-01 Re Containment Fan Cooler Test Results Outside Acceptance Criteria.Addl Info Re Corrective Actions Taken,Provided.No New Commitments,Made | Forwards LER 98-015-01 Re Containment Fan Cooler Test Results Outside Acceptance Criteria.Addl Info Re Corrective Actions Taken,Provided.No New Commitments,Made | 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition |
| 05000266/LER-1998-016, :on 980427,refueling Sys Interlock Testing Did Not Match That of FSAR Description.Caused by More Literal & Restrictive Interpretation of Description in Fsar.Revised ORT-15 to Include Items Discussed in FSAR Section 9.5 |
- on 980427,refueling Sys Interlock Testing Did Not Match That of FSAR Description.Caused by More Literal & Restrictive Interpretation of Description in Fsar.Revised ORT-15 to Include Items Discussed in FSAR Section 9.5
| 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2) |
| 05000266/LER-1998-017, :on 980512,discovered Deficient Welds on B Loop Rrtd Piping Pipe Whip Restraint.Caused by Support Being Cut & Partially Removed During Plant Mod MR 84-284.Deficient Welds Were Repaired,Inspected & Confirmed to Perform |
- on 980512,discovered Deficient Welds on B Loop Rrtd Piping Pipe Whip Restraint.Caused by Support Being Cut & Partially Removed During Plant Mod MR 84-284.Deficient Welds Were Repaired,Inspected & Confirmed to Perform
| 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v), Loss of Safety Function |
| 05000266/LER-1998-018, :on 980528,missed Surveillances for App J Testing of Containment Electrical Penetrations Occurred. Caused by Valve Discovered on Electrical Penetrations Inside Containment.Electrical Penetration Vent Valves Modified |
- on 980528,missed Surveillances for App J Testing of Containment Electrical Penetrations Occurred. Caused by Valve Discovered on Electrical Penetrations Inside Containment.Electrical Penetration Vent Valves Modified
| 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(1) |
| 05000266/LER-1998-019, :on 980615,discovered That Containment Hydrogen Monitors Lacked Environmentally Qualified Coating on Terminal Strips.Caused by Terminal Strips Being Disturbed W/O Subsequent Reapplication of Coating.Replaced Coating |
- on 980615,discovered That Containment Hydrogen Monitors Lacked Environmentally Qualified Coating on Terminal Strips.Caused by Terminal Strips Being Disturbed W/O Subsequent Reapplication of Coating.Replaced Coating
| |
| 05000266/LER-1998-020, :on 980701,identified Group of Cables in Cable Spreading Room Which May Not Meet Licensee Fire Protection Commitments.Caused by Failure to Fully Implement Certain Requirements.Fire Watch Established Twice Per Shift |
- on 980701,identified Group of Cables in Cable Spreading Room Which May Not Meet Licensee Fire Protection Commitments.Caused by Failure to Fully Implement Certain Requirements.Fire Watch Established Twice Per Shift
| |
| 05000266/LER-1998-021, :on 980702,discovered That ASME Section XI Inservice Stroke Tests Were Not Performed on Four Valves within Required Time Frame.Caused by Personnel Error.All 4 Valves Were Subsequently Tested & Found to Be Satisfactory |
- on 980702,discovered That ASME Section XI Inservice Stroke Tests Were Not Performed on Four Valves within Required Time Frame.Caused by Personnel Error.All 4 Valves Were Subsequently Tested & Found to Be Satisfactory
| 10 CFR 50.73(a)(2)(x) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition |
| 05000266/LER-1998-022, :on 980714,TS LCOs for Safety Injection & RHR Operation Occurred.Caused by Unplanned Equipment Inoperability.Duty & Call Superintendent Handbook Procedure Has Been Approved to Provide Operators Guidance |
- on 980714,TS LCOs for Safety Injection & RHR Operation Occurred.Caused by Unplanned Equipment Inoperability.Duty & Call Superintendent Handbook Procedure Has Been Approved to Provide Operators Guidance
| 10 CFR 50.73(a)(2)(vi) |
| 05000266/LER-1998-023, :on 980718,circulating Water Pumphouse Roof Was Not IAW Plant Design Basis.Caused by Inadequate Consideration of Structural Requirements.Operability Determination to Evaluate Effect of Condition Was Completed |
- on 980718,circulating Water Pumphouse Roof Was Not IAW Plant Design Basis.Caused by Inadequate Consideration of Structural Requirements.Operability Determination to Evaluate Effect of Condition Was Completed
| |
| 05000266/LER-1998-024, :on 980721,inadvertent EDG Start Was Noted. Caused by Installation of Electrical Jumper Wire.Removed Temporary Jumper Wire & Revised Operating Procedure |
- on 980721,inadvertent EDG Start Was Noted. Caused by Installation of Electrical Jumper Wire.Removed Temporary Jumper Wire & Revised Operating Procedure
| |
| 05000266/LER-1998-025, :on 980731,determined That Operation of CR Smoke Exhaust fan,W-13C,could Prevent Maintaining Positive Pressure in Cr.Caused by Oversight in Initial Mod Project. Administrative Controls Implemented for Operation of Fan |
- on 980731,determined That Operation of CR Smoke Exhaust fan,W-13C,could Prevent Maintaining Positive Pressure in Cr.Caused by Oversight in Initial Mod Project. Administrative Controls Implemented for Operation of Fan
| |
| 05000266/LER-1998-026, :on 980914,determined That Operation of Potential Dilution in Progress Alarm Was Not Controlled IAW Ts.Caused by Failure to Address Plant Heatup Procedures. Revised Procedure OP-1A, Cold Shutdown to Hot Shutdown |
- on 980914,determined That Operation of Potential Dilution in Progress Alarm Was Not Controlled IAW Ts.Caused by Failure to Address Plant Heatup Procedures. Revised Procedure OP-1A, Cold Shutdown to Hot Shutdown
| 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) |
| 05000266/LER-1998-027, :on 981013,inadequate TS Surveillance Testing of non-essential Svc Water Isolation Logic,Was Identified. Caused by Failure of Existing Test Procedure to Adequately Consider All Postulated Failure Modes.Procedures Changed |
- on 981013,inadequate TS Surveillance Testing of non-essential Svc Water Isolation Logic,Was Identified. Caused by Failure of Existing Test Procedure to Adequately Consider All Postulated Failure Modes.Procedures Changed
| 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1) |
| 05000266/LER-1998-028, :on 981113,surveillances Required by Section XI Pressure Test Program Were Missed.Caused by Failure to Take Timely Action on & Implement Corrective Actions for ASME Program Problems.Completed 40 Month Pressure Test |
- on 981113,surveillances Required by Section XI Pressure Test Program Were Missed.Caused by Failure to Take Timely Action on & Implement Corrective Actions for ASME Program Problems.Completed 40 Month Pressure Test
| 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) |
| 05000266/LER-1998-029, :on 981227,discovered That Automatic Start Feature for Train B Svc Water Pumps Was Not Functional. Caused by Failure to Recognize Full Significance of Deenergizing Safeguards Relay Racks.Equipment Reenergized |
- on 981227,discovered That Automatic Start Feature for Train B Svc Water Pumps Was Not Functional. Caused by Failure to Recognize Full Significance of Deenergizing Safeguards Relay Racks.Equipment Reenergized
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) |
| 05000266/LER-1998-030, :on 981124,determined That Safety Related Battery Charges Should Be Reclassified as Hot Shutdown Equipment.Caused by Incorrect Assumption.Mod Will Be Installed to Provide Manual Switches |
- on 981124,determined That Safety Related Battery Charges Should Be Reclassified as Hot Shutdown Equipment.Caused by Incorrect Assumption.Mod Will Be Installed to Provide Manual Switches
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition |