| | | Reporting criterion |
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| 05000369/LER-1981-001, Forwards LER 81-001/03L-0 | Forwards LER 81-001/03L-0 | |
| 05000369/LER-1981-001-03, /03L-0:on 810129-0212,several Fire Detection Instruments Were Inoperable for Periods Exceeding 1-h. Caused by Const in Area.Fire Watches & Patrols Established | /03L-0:on 810129-0212,several Fire Detection Instruments Were Inoperable for Periods Exceeding 1-h. Caused by Const in Area.Fire Watches & Patrols Established | |
| 05000369/LER-1981-002-01, /01T-0:on 810130,during Test,Vent Valve VX-41 & Containment Isolation Valve XV-40 Found Open to Atmosphere, in Violation of Tech Spec 4.9.4.1.Caused by Lack of Valve Checklist & Lack of Periodic Test.Valves Closed | /01T-0:on 810130,during Test,Vent Valve VX-41 & Containment Isolation Valve XV-40 Found Open to Atmosphere, in Violation of Tech Spec 4.9.4.1.Caused by Lack of Valve Checklist & Lack of Periodic Test.Valves Closed | |
| 05000369/LER-1981-002, Forwards LER 81-002/01T-0 | Forwards LER 81-002/01T-0 | |
| 05000369/LER-1981-003-03, /03L-0:on 810129,conventional Waste Plant Discharge Flow Monitor Found Inoperable.Caused by Inaccurate Flow Readings Due to Inability of Instrument to Measure Continuous Discharge Flow.New Equipment Ordered | /03L-0:on 810129,conventional Waste Plant Discharge Flow Monitor Found Inoperable.Caused by Inaccurate Flow Readings Due to Inability of Instrument to Measure Continuous Discharge Flow.New Equipment Ordered | |
| 05000369/LER-1981-003, Forwards LER 81-003/03L-0 | Forwards LER 81-003/03L-0 | |
| 05000369/LER-1981-004-03, /03L-0:on 810129-0212,various Firestops & Fire Doors Found Inoperable for Periods Exceeding 1-h.Caused by Const in & Through Areas Normally Closed Off.Fire Watches & Patrols Established | /03L-0:on 810129-0212,various Firestops & Fire Doors Found Inoperable for Periods Exceeding 1-h.Caused by Const in & Through Areas Normally Closed Off.Fire Watches & Patrols Established | |
| 05000369/LER-1981-004, Forwards LER 81-004/03L-0 | Forwards LER 81-004/03L-0 | |
| 05000369/LER-1981-005, Forwards LER 81-005/03L-0 | Forwards LER 81-005/03L-0 | |
| 05000369/LER-1981-005-03, /03L-0:on 810202,power Supply to Both Excore Range Monitors Was Interrupted.Caused by Maint Personnel Cutting Off Power to Investigate Steam Generator Status Lights & lo-lo Level Alarms.Personnel Instructed | /03L-0:on 810202,power Supply to Both Excore Range Monitors Was Interrupted.Caused by Maint Personnel Cutting Off Power to Investigate Steam Generator Status Lights & lo-lo Level Alarms.Personnel Instructed | |
| 05000369/LER-1981-006-03, /03L-0:on 810202,leaking Seal Discovered on RHR Pump.Caused by Improperly Loaded Spring Which Holds Seal Faces Together.Seal Replaced | /03L-0:on 810202,leaking Seal Discovered on RHR Pump.Caused by Improperly Loaded Spring Which Holds Seal Faces Together.Seal Replaced | |
| 05000369/LER-1981-006, Forwards LER 81-006/03L-0 | Forwards LER 81-006/03L-0 | |
| 05000369/LER-1981-007-03, /03L-0:on 810203,RHR Sys Train a Was Declared Inoperable.Caused by Draining Essential Header to Repair Leaking Valves in Nuclear Svc Water Sys.Valves Repaired & Train a Returned to Svc | /03L-0:on 810203,RHR Sys Train a Was Declared Inoperable.Caused by Draining Essential Header to Repair Leaking Valves in Nuclear Svc Water Sys.Valves Repaired & Train a Returned to Svc | |
| 05000369/LER-1981-007, Forwards LER 81-007/03L-0 | Forwards LER 81-007/03L-0 | |
| 05000369/LER-1981-008, Forwards LER 81-008/03L-0 | Forwards LER 81-008/03L-0 | |
| 05000369/LER-1981-008-03, /03L-0:on 810203,control Area Ventilation Sys Train a Declared Inoperable.Caused by Draining Essential Header to Repair Leaking Valves in Nuclear Svc Water Sys. Valves Repaired & Train a Returned to Svc | /03L-0:on 810203,control Area Ventilation Sys Train a Declared Inoperable.Caused by Draining Essential Header to Repair Leaking Valves in Nuclear Svc Water Sys. Valves Repaired & Train a Returned to Svc | |
| 05000369/LER-1981-009-03, /03L-0:on 810205,flow to Reactor Coolant Loops Was Momentarily Lost.Caused by Failure of Throttle Valve to Close Due to Loosening of Nut Holding Linkage to Valve Stem. Linkage Repositioned & Nut Tightened | /03L-0:on 810205,flow to Reactor Coolant Loops Was Momentarily Lost.Caused by Failure of Throttle Valve to Close Due to Loosening of Nut Holding Linkage to Valve Stem. Linkage Repositioned & Nut Tightened | |
| 05000369/LER-1981-009, Forwards LER 81-009/03L-0.Detailed Event Analysis Encl | Forwards LER 81-009/03L-0.Detailed Event Analysis Encl | |
| 05000369/LER-1981-010, Forwards LER 81-010/03L-0 | Forwards LER 81-010/03L-0 | |
| 05000369/LER-1981-010-03, /03L-0:on 810207,total RHR Flow Exceeded Tech Specs.Caused by Air Line Supplying Actuator on RHR Valve Breaking,Allowing Valve to Fail Open.Rhr Flow Reset.Rigid Air Supply Lines to Be Replaced W/Flexible Lines | /03L-0:on 810207,total RHR Flow Exceeded Tech Specs.Caused by Air Line Supplying Actuator on RHR Valve Breaking,Allowing Valve to Fail Open.Rhr Flow Reset.Rigid Air Supply Lines to Be Replaced W/Flexible Lines | |
| 05000369/LER-1981-011-03, /03T-0:on 810210,both Pressure Seals on Inner Door of Lower Personnel Air Lock Failed.Caused by Hole in One Seal & Bubble in Other Seal.Seals Replaced & Returned to Manufacturer | /03T-0:on 810210,both Pressure Seals on Inner Door of Lower Personnel Air Lock Failed.Caused by Hole in One Seal & Bubble in Other Seal.Seals Replaced & Returned to Manufacturer | |
| 05000369/LER-1981-011, Forwards LER 81-011/03T-0 | Forwards LER 81-011/03T-0 | |
| 05000369/LER-1981-012-03, /03T-0:on 801211,isolation Valve NV-250 Found Not Verified Closed Under Administrative Control Per Tech Spec. Caused by Lack of Signoff Step in Daily Surveillance Items. Procedure Change Incorporated | /03T-0:on 801211,isolation Valve NV-250 Found Not Verified Closed Under Administrative Control Per Tech Spec. Caused by Lack of Signoff Step in Daily Surveillance Items. Procedure Change Incorporated | |
| 05000369/LER-1981-012, Forwards LER 81-012/03T-0 | Forwards LER 81-012/03T-0 | |
| 05000369/LER-1981-013-03, /03L-0:on 810212,radiation Detectors EMF 33,35,36, 37,38,39 & 40 Were Declared Inoperable Due to Loss of Sample Flows.Caused by Individual Nonrelated Failures of Each Emf. Repairs Performed & EMFs Declared Operable | /03L-0:on 810212,radiation Detectors EMF 33,35,36, 37,38,39 & 40 Were Declared Inoperable Due to Loss of Sample Flows.Caused by Individual Nonrelated Failures of Each Emf. Repairs Performed & EMFs Declared Operable | |
| 05000369/LER-1981-013, Forwards LER 81-013/03L-0.Detailed Event Analysis Encl | Forwards LER 81-013/03L-0.Detailed Event Analysis Encl | |
| 05000369/LER-1981-014, Forwards LER 81-014/03L-0 | Forwards LER 81-014/03L-0 | |
| 05000369/LER-1981-014-03, /03L-0:on 810212,while in Mode 6,control Room Received High Groundwater Alarm.Caused by Localized Temporary High Groundwater Level.Proper Surveillance Conducted & Alarm Was Cleared within 2 Days | /03L-0:on 810212,while in Mode 6,control Room Received High Groundwater Alarm.Caused by Localized Temporary High Groundwater Level.Proper Surveillance Conducted & Alarm Was Cleared within 2 Days | |
| 05000369/LER-1981-015-03, /03L-0:on 810213,various Firestops & Fire Doors Rendered Inoperable for Periods Exceeding 1-h from 810213-27.Caused by Const in & Through Areas Normally Closed Off.Fire Watches & Patrols Established as Required | /03L-0:on 810213,various Firestops & Fire Doors Rendered Inoperable for Periods Exceeding 1-h from 810213-27.Caused by Const in & Through Areas Normally Closed Off.Fire Watches & Patrols Established as Required | |
| 05000369/LER-1981-015, Forwards LER 81-015/03L-0 | Forwards LER 81-015/03L-0 | |
| 05000369/LER-1981-016, Forwards LER 81-016/03L-0 | Forwards LER 81-016/03L-0 | |
| 05000369/LER-1981-016-03, /03L-0:on 810216,several Firestops Inadvertently Left Open W/O Fire Watches Being Posted.Caused by Omission of Stops from Maint List of Those Requiring Seals.Stops Sealed.Seals Will Be Verified Every 18 Months | /03L-0:on 810216,several Firestops Inadvertently Left Open W/O Fire Watches Being Posted.Caused by Omission of Stops from Maint List of Those Requiring Seals.Stops Sealed.Seals Will Be Verified Every 18 Months | |
| 05000369/LER-1981-018, Forwards LER 81-018/03L-0.Detailed Event Analysis Encl | Forwards LER 81-018/03L-0.Detailed Event Analysis Encl | |
| 05000369/LER-1981-018-03, /03L-0:on 810219,annunciator Alarm Indicated Loss of Sample Flow on Radiation Monitor 1-EMF-33.Monitor Vacuum Pump Internally Damaged Due to Water Inside Pump.Pump Vanes & Bearings Replaced & Water Removed | /03L-0:on 810219,annunciator Alarm Indicated Loss of Sample Flow on Radiation Monitor 1-EMF-33.Monitor Vacuum Pump Internally Damaged Due to Water Inside Pump.Pump Vanes & Bearings Replaced & Water Removed | |
| 05000369/LER-1981-019-01, /01T-0:on 810306,during ESF Testing,Loss of Ac Power Was Experienced on Half of Station Security Sys.Caused by Blown Security Sys Power Inverter Fuse.Security Procedures Changed to Indicate Info Concerning Power Sys | /01T-0:on 810306,during ESF Testing,Loss of Ac Power Was Experienced on Half of Station Security Sys.Caused by Blown Security Sys Power Inverter Fuse.Security Procedures Changed to Indicate Info Concerning Power Sys | |
| 05000369/LER-1981-019, Forwards LER 81-019/01T-0 | Forwards LER 81-019/01T-0 | |
| 05000369/LER-1981-020, Forwards LER 81-020/03L-0.Detailed Event Analysis Encl | Forwards LER 81-020/03L-0.Detailed Event Analysis Encl | |
| 05000369/LER-1981-020-03, /03L-0:on 810219,spurious High Radiation Alarm & Loss of Flow Alarm Sounded in Control Room on EMF-49. Personnel Cleared Radiation Alarm But Overlooked Closed Valve,Causing Loss of Flow Alarm.Monitor Repaired | /03L-0:on 810219,spurious High Radiation Alarm & Loss of Flow Alarm Sounded in Control Room on EMF-49. Personnel Cleared Radiation Alarm But Overlooked Closed Valve,Causing Loss of Flow Alarm.Monitor Repaired | |
| 05000369/LER-1981-021, Forwards LER 81-021/03L-0.Detailed Event Analysis Encl | Forwards LER 81-021/03L-0.Detailed Event Analysis Encl | |
| 05000369/LER-1981-021-03, /03L-0:on 810226,noble Gas Activity Monitor for Condenser Evacuation Sys EMF-33 Not Functioning.Caused by Excessive Amounts of Condensation in Sample Lines.Moisture Removed.Different Type of Moisture Separator to Be Used | /03L-0:on 810226,noble Gas Activity Monitor for Condenser Evacuation Sys EMF-33 Not Functioning.Caused by Excessive Amounts of Condensation in Sample Lines.Moisture Removed.Different Type of Moisture Separator to Be Used | |
| 05000369/LER-1981-022, Forwards LER 81-022/03L-0 | Forwards LER 81-022/03L-0 | |
| 05000369/LER-1981-022-03, /03L-0:on 810301-16,various Portions of Fire Detection Sys Inoperable for Periods Exceeding 1-h.Caused by Const in Area.Fire Watches & Patrols Established as Required | /03L-0:on 810301-16,various Portions of Fire Detection Sys Inoperable for Periods Exceeding 1-h.Caused by Const in Area.Fire Watches & Patrols Established as Required | |
| 05000369/LER-1981-023-03, /03L-0:on 810227-0313,various Firestops & Fire Doors Inoperable for Periods Exceeding 1-h.Caused by Const in & Through Areas Normally Closed Off.Fire Watches & Patrol Established as Required | /03L-0:on 810227-0313,various Firestops & Fire Doors Inoperable for Periods Exceeding 1-h.Caused by Const in & Through Areas Normally Closed Off.Fire Watches & Patrol Established as Required | |
| 05000369/LER-1981-023, Forwards LER 81-023/03L-0 | Forwards LER 81-023/03L-0 | |
| 05000369/LER-1981-024, Forwards LER 81-024/01T-0 | Forwards LER 81-024/01T-0 | |
| 05000369/LER-1981-024-01, /01T-0:on 810316,Unit 1 Wedge Plates Discovered to Be Smaller than Required Size.Cause Not Stated.Calculations Reviewed to Determine Acceptance.Corrective Action Deemed Necessary.Bar Along Length of Washer Plate Added | /01T-0:on 810316,Unit 1 Wedge Plates Discovered to Be Smaller than Required Size.Cause Not Stated.Calculations Reviewed to Determine Acceptance.Corrective Action Deemed Necessary.Bar Along Length of Washer Plate Added | |
| 05000369/LER-1981-025-01, /01T-0:on 810319,no Seismic Bracing or Calculations Found for 12 Reactor Bldg safety-related Electrical Cable Tray Hanger Stds.Cause Not Stated.Seismic Calculations Performed on Affected Hangers | /01T-0:on 810319,no Seismic Bracing or Calculations Found for 12 Reactor Bldg safety-related Electrical Cable Tray Hanger Stds.Cause Not Stated.Seismic Calculations Performed on Affected Hangers | |
| 05000369/LER-1981-025, Forwards LER 81-025/01T-0 | Forwards LER 81-025/01T-0 | |
| 05000369/LER-1981-026-03, /03L-0:on 810305,EMF Sys Panel Alarm in Control Room Indicated Malfunction of EMF-43A.Alarm Could Not Be Cleared & Control Room Outside Air Intake Gaseous Activity Monitor Inoperable.Caused by Broken Bnc Jack | /03L-0:on 810305,EMF Sys Panel Alarm in Control Room Indicated Malfunction of EMF-43A.Alarm Could Not Be Cleared & Control Room Outside Air Intake Gaseous Activity Monitor Inoperable.Caused by Broken Bnc Jack | |
| 05000369/LER-1981-026, Forwards LER 81-026/03L-0.Detailed Event Analysis Encl | Forwards LER 81-026/03L-0.Detailed Event Analysis Encl | |
