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Category:LICENSEE EVENT REPORT (SEE ALSO AO RO)
MONTHYEARML20216D3501998-04-0606 April 1998 LER 98-S02-00:on 980309,suspension of Safeguards Under 10CFR50.54(x) During Severe Storm Occurred Due to Personnel Safety Concerns.Caused by Severe Weather.Failed Surge Protection Was Replaced L-96-296, LER 96-S02-00:on 961011,failed to Terminate Access of Temporary Licensee Employee.Caused by Cognitive Personnel Error.Security Unassigned Card Key & Plant Administrative Procedure 0010509 Revised1996-11-0707 November 1996 LER 96-S02-00:on 961011,failed to Terminate Access of Temporary Licensee Employee.Caused by Cognitive Personnel Error.Security Unassigned Card Key & Plant Administrative Procedure 0010509 Revised 05000335/LER-1981-039, Updated LER 81-039/03L-1:on 810802,during Power Operation, PORV Block Valve MV1403 Would Not Close.Caused by Loose Electrical Connection on Valve Limit Switch.Connection Tightened During Oct 1981 refueling.W/840319 Ltr1984-03-19019 March 1984 Updated LER 81-039/03L-1:on 810802,during Power Operation, PORV Block Valve MV1403 Would Not Close.Caused by Loose Electrical Connection on Valve Limit Switch.Connection Tightened During Oct 1981 refueling.W/840319 Ltr ML20062A0971978-09-27027 September 1978 /03L-0 on 780905:During Full Pwr Oper 2 Damper Motors in the Suction Line for ECCS Area Exhaust Fan HVE-9B Blew Control Circuit Fuses,Caused by Loss of Insulating Fluid Thru Leaking Gasket in One Motor,Shorting Both Out 1998-04-06
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML17241A4891999-10-0707 October 1999 LER 99-004-00:on 990912,noted That MSSV Surveillance Was Outside of TS Requirements.Caused by Setpoint Drift.Subject MSSVs Are Being Refurbished & Retested Prior to Unit Startup from SL1-16 Refueling Outage.With 991007 Ltr ML17241A4951999-09-30030 September 1999 Monthly Operating Repts for Sept 1999 for St Lucie,Units 1 & 2.With 991014 Ltr ML17241A4741999-08-31031 August 1999 Rev 1 to PCM 99016, St Lucie Unit 1,Cycle 16 Colr. ML17241A4591999-08-31031 August 1999 Monthly Operating Repts for Aug 1999 for St Lucie,Units 1 & 2.With 990913 Ltr ML17241A4301999-07-31031 July 1999 Monthly Operating Repts for Jul 1999 for St Lucie Units 1 & 2.With 990805 Ltr ML17241A4111999-07-16016 July 1999 LER 99-007-00:on 990610,unplanned Cooldown Transient Occurred Due to Personnel Error.Trained & Briefed Personnel & Revised Procedures.With 990716 Ltr ML17241A4031999-07-0606 July 1999 LER 99-006-00:on 990605,sub-critical Reactor Trip Occurred Due to Inadvertent MSIV Opening.Caused by Personnel Error. Provided Operation Supervision Instruction to Operating Crews,Stand Down Meetings & Operator Aids.With 990706 Ltr ML17241A4041999-07-0606 July 1999 LER 99-005-00:on 990604,CEA Drop Resulted in Manual Reactor Trip.Caused by Procedural Inadequacies.Procedure Changes Are Planned to Correct Lack of Procedural Guidance for CEA Subgroup Power Switch Replacement.With 990706 Ltr ML17241A4091999-06-30030 June 1999 Monthly Operating Repts for June 1999 for St Lucie,Units 1 & 2.With 990712 Ltr ML17241A3941999-06-30030 June 1999 LER 99-004-01:on 990415,as Found Cycle 10 Psv Setpoints Were Outside TS Limits.Caused by Manufacturing Process Defect. All Three Psvs Were Replaced with pre-tested Valves During Cycle 11 Refueling Outage.With 990630 Ltr ML17355A3681999-06-30030 June 1999 Revised Update to Topical QA Rept, Dtd June 1999 ML17241A3551999-06-0404 June 1999 LER 99-002-00:on 990505,both Trains of Safety Injection Actuation Were Blocked During Surveillance.Caused by Procedure Error.Procedure Revised.With 990604 Ltr ML17241A3631999-05-31031 May 1999 Monthly Operating Repts for May 1999 for St Lucie Units 1 & 2.With 990610 Ltr ML17241A3321999-05-17017 May 1999 LER 99-004-00:on 990415,determined That as Found Cycle 10 Psv Setpoints Outside TS Limits.Root Cause Under Investigation.Psvs Replaced with pe-tested Valves During Cycle 11 ML17241A3271999-05-0606 May 1999 LER 99-003-00:on 990406,ECCS Suction Header Leak Resulted in Both ECCS Trains Being Inoperable & Entry Into TS 3.0.3. Caused by Chloride Induced OD Stress Corrosion Cracking of Piping.Made Code Repairs & Coated Piping.With 990506 Ltr ML17241A3331999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for St Lucie,Units 1 & 2.With 990517 Ltr ML17229B0801999-04-0707 April 1999 LER 99-002-00:on 990311,SG ECT Error Caused Operation with Condition Prohibited by Ts.Caused by Deficiencies in Data Analysis Guideline Instructions.Licensee Will Change Data Analysis Guidelines for Lead Analysts.With 990407 Ltr ML17229B0841999-04-0707 April 1999 Rev 2 to PSL-ENG-SEMS-98-102, Engineering Evaluation of ECCS Suction Lines. ML17229B0791999-04-0707 April 1999 LER 99-001-00:on 990309,discovered Inadequate Design & IST SRs for Iodine Removal Sys (Irs).Caused by Original Design Inadequacies & Personnel Error.Naoh Tank Vent Valve V07233 Was Tagged Open.With 990407 Ltr ML17229B0961999-03-31031 March 1999 Monthly Operating Repts for Mar 1999 for St Lucie,Units 1 & 2.With 990408 Ltr ML17229B0541999-03-10010 March 1999 LER 99-001-00:on 990211,inadequate TS SRs for SIT & SDC Isolation Valves Were Noted.Caused by Failure to Correctly Implement TS Srs.Submitted LAR to Align Required TS SR with Design Bases Requirements Being Verified.With 990310 Ltr ML17229B0461999-02-28028 February 1999 Monthly Operating Repts for Feb 1999 for St Lucie,Units 1 & 2.With 990310 Ltr ML17229B0051999-01-31031 January 1999 Monthly Operating Repts for Jan 1999 for St Lucie,Units 1 & 2.With 990211 Ltr ML17229A9901999-01-20020 January 1999 LER 98-009-00:on 981223,noted That Facility Operated Outside of Design Basis.Caused by non-conservative MSLB Analysis Inputs.Will Review SR Component Differences Between Units & Will re-baseline LTOP Analysis.With 990120 Ltr ML17229A9961999-01-14014 January 1999 SG Tube Inservice Insp Special Rept. ML17229A9821999-01-0404 January 1999 LER 98-010-00:on 981207,RCS Boron Sample Frequency Required by Ts,Was Exceeded by Twelve Minutes.Caused by Personnel Error.Equipment Clearance Order Was Lifted to Draw Required Sample & Operations Procedure Was Changed.With 990104 Ltr ML17229A9831998-12-31031 December 1998 Monthly Operating Repts for Dec 1998 for St Lucie,Units 1 & 2.With 990111 Ltr ML17229A9611998-12-22022 December 1998 LER 97-002-01:on 981204,containment Sump Debris Screen Was Not IAW Design.Caused by Inadequate C/As for Sump Screen Anamolies.All Identified Sump Screen Deficiencies Were Dispositioned &/Or Repaired.With 981222 Ltr ML17229A9561998-12-15015 December 1998 LER 98-008-00:on 981118,missed TS SG U Tube Insp.Caused by Encoding Errors While Using Remote Positioning Fixtures.All SG Tube Surveyed.With 981215 Ltr ML17241A3581998-12-0909 December 1998 Changes,Tests & Experiments Made as Allowed by 10CFR50.59 for Period of 970526-981209. ML17229A9421998-11-30030 November 1998 Monthly Operating Repts for Nov 1998 for St Lucie,Units 1 & 2.With 981215 Ltr ML17229A9301998-11-25025 November 1998 LER 98-005-01:on 980807,discovered That New MOV Methodology Caused Past PORV Block Valve Operability Problem.Caused by Inadequacies in Original Vendor MOV Methodology.Planned Valve Mods Will Be Implemented During Cycle 11 1998 Outage ML17229A9021998-11-0404 November 1998 LER 98-008-00:on 981008,inadequate Reactor Protection Sys Trip Bypass TS Was Noted.Caused by Poorly Worded Ts. Submitted LAR to Clarify Power Requirements for High Rate of Power Trips.With 981104 Ltr ML17241A4931998-11-0101 November 1998 Statement of Account for Period of 981101-990930 for Suntrust Bank,As Trustee for Florida Municipal Power Agency Nuclear Decommissioning Trust (St Lucie Project). ML17229A9051998-10-31031 October 1998 Monthly Operating Repts for Oct 1998 for St Lucie,Units 1 & 2.With 981110 Ltr ML17229A8871998-10-19019 October 1998 Part 21 Rept Re Potential Defect in Swagelok Stainless Steel Front Ferrule,Part Number SS-503-1 Which Was Machined with Improper Length.C/A Includes Insp Equipment That Will 100% Identify Short Length ML17229A8781998-10-19019 October 1998 Part 21 Rept Re Potential Defect in Swagelok Stainless Steel Front Ferrule,Part Number SS-503-1,which Was Machined with Improper Length.Insp Equipment That Will 100% Identify Short Length ML17229A8771998-10-14014 October 1998 LER 98-006-00:on 980918,inadvertent Afas Actuation Was Noted.Caused by Degradation of Multiple Afas Power Supplies. Replaced Afas Power Supplies & Revised Procedures.With 981014 Ltr ML17229A8761998-10-14014 October 1998 LER 98-007-00:on 980918,identified Discrepancies Between Fire Protection Design Requirements & Field Conditions. Caused by Inadequate Translation & Implementation of Fire Protection Requirements.Procedures Revised.With 981014 Ltr ML17229A8721998-09-30030 September 1998 Monthly Operating Repts for Sept 1998 for St Lucie Units 1 & 2.With 981009 Ltr ML17229A8511998-09-0202 September 1998 LER 98-005-00:on 980807,discovered That PORV Margins Were Insufficient to Accommodate Addl Conservatism.Caused by Inadequacies in Original Vendor MOV Methodology.Will Implement Planned Valve Actuator mods.W/980902 Ltr ML17229A8611998-08-31031 August 1998 Monthly Operating Repts for Aug 1998 for St Lucie,Units 1 & 2.With 980911 Ltr ML18066A2771998-08-13013 August 1998 Part 21 Rept Re Deficiency in CE Current Screening Methodology for Determining Limiting Fuel Assembly for Detailed PWR thermal-hydraulic Sa.Evaluations Were Performed for Affected Plants to Determine Effect of Deficiency ML17229A8481998-08-0707 August 1998 Rev 1 to PSL-ENG-SEFJ-98-013, St Lucie Unit 2,Cycle 10 Colr. ML17229A9461998-08-0707 August 1998 Rev 0 to PCM 98016, St Lucie Unit 2,Cycle 11 Colr. ML17229A8301998-07-31031 July 1998 Monthly Operating Repts for July 1998 for St Lucie,Units 1 & 2.W/980814 Ltr ML17229A8201998-07-29029 July 1998 LER 98-007-00:on 980630,inadequate Procedure May Have Resulted in SBO Recovery Complications.Caused by Inadequate Procedures.Attached Caution Tags to Appropriate Control switches.W/980729 Ltr ML17229A7981998-06-30030 June 1998 Monthly Operating Repts for June 1998 for St Lucie,Units 1 & 2.W/980713 Ltr ML17229A7701998-05-31031 May 1998 Monthly Operating Repts for May 1998 for St Lucie,Units 1 & 2.W/980612 Ltr ML17229A7411998-05-28028 May 1998 LER 98-004-00:on 980430,discovered Waste Gas Decay Tank Operation W/O Available Oxygen Analyzers,Which Is Prohibited by Ts.Caused by Inadequate Licensee Review of License Amend. Oxygen Analyzer recalibrated.W/980528 Ltr 1999-09-30
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LER-2082-022, |
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05000335/LER-1982-011, Forwards LER 82-011/03L-0 | Forwards LER 82-011/03L-0 | | 05000335/LER-1982-013, Forwards Updated LER 82-013/03X-1 | Forwards Updated LER 82-013/03X-1 | | 05000335/LER-1982-016, Forwards Updated LER 82-016/03X-1 | Forwards Updated LER 82-016/03X-1 | | 05000335/LER-1982-017, Forwards LER 82-017/03L-0 | Forwards LER 82-017/03L-0 | | 05000335/LER-1982-018, Forwards LER 82-018/03L-0 | Forwards LER 82-018/03L-0 | | 05000335/LER-1982-020, Forwards LER 82-020/03L-0 | Forwards LER 82-020/03L-0 | | 05000335/LER-1982-022, Forwards LER 82-022/03L-0 | Forwards LER 82-022/03L-0 | | 05000335/LER-1982-023, Forwards LER 82-023/99X-0 | Forwards LER 82-023/99X-0 | | 05000335/LER-1982-024, Forwards LER 82-024/03L-0 | Forwards LER 82-024/03L-0 | | 05000335/LER-1982-025, Forwards LER 82-025/03L-0 | Forwards LER 82-025/03L-0 | | 05000335/LER-1982-026, Forwards LER 82-026/03L-0 | Forwards LER 82-026/03L-0 | | 05000335/LER-1982-027, Forwards LER 82-027/03L-0 | Forwards LER 82-027/03L-0 | | 05000335/LER-1982-028, Forwards LER 82-028/03L-0 | Forwards LER 82-028/03L-0 | | 05000335/LER-1982-029, Forwards LER 82-029/03L-0 | Forwards LER 82-029/03L-0 | | 05000335/LER-1982-030, Forwards LER 82-030/03L-0 | Forwards LER 82-030/03L-0 | | 05000335/LER-1982-031, Forwards LER 82-031/03L-0 | Forwards LER 82-031/03L-0 | | 05000335/LER-1982-032, Forwards LER 82-032/03L-0 | Forwards LER 82-032/03L-0 | | 05000335/LER-1982-033, Forwards LER 82-033/03L-0 | Forwards LER 82-033/03L-0 | | 05000335/LER-1982-035, Forwards LER 82-035/03L-0 | Forwards LER 82-035/03L-0 | | 05000335/LER-1982-036, Forwards LER 82-036/03L-0 | Forwards LER 82-036/03L-0 | | 05000335/LER-1982-037, Forwards LER 82-037/03L-0 | Forwards LER 82-037/03L-0 | | 05000335/LER-1982-038, Forwards LER 82-038/03L-0 | Forwards LER 82-038/03L-0 | | 05000335/LER-1982-039, Forwards LER 82-039/03L-0 | Forwards LER 82-039/03L-0 | | 05000335/LER-1982-041, Forwards LER 82-041/03L-0 | Forwards LER 82-041/03L-0 | | 05000335/LER-1982-044, Forwards LER 82-044/03L-0 | Forwards LER 82-044/03L-0 | | 05000335/LER-1982-045, Forwards LER 82-045/43X-0 | Forwards LER 82-045/43X-0 | | 05000335/LER-1982-047, Forwards LER 82-047/03L-0 | Forwards LER 82-047/03L-0 | | 05000335/LER-1982-048, Forwards LER 82-048/03L-0 | Forwards LER 82-048/03L-0 | | 05000335/LER-1982-049, Forwards LER 82-049/03L-0 | Forwards LER 82-049/03L-0 | | 05000335/LER-1982-050, Forwards LER 82-050/03L-0 | Forwards LER 82-050/03L-0 | | 05000335/LER-1982-051, Forwards LER 82-051/03L-0 | Forwards LER 82-051/03L-0 | | 05000335/LER-1982-052, Forwards LER 82-052/03L-0 | Forwards LER 82-052/03L-0 | | 05000335/LER-1982-053, Forwards LER 82-053/03L-0 | Forwards LER 82-053/03L-0 | | 05000335/LER-1982-054, Forwards LER 82-054/03L-0 | Forwards LER 82-054/03L-0 | | 05000335/LER-1982-055, Forwards LER 82-055/03L-0 | Forwards LER 82-055/03L-0 | | 05000335/LER-1982-056, Forwards LER 82-056/03L-0 | Forwards LER 82-056/03L-0 | | 05000335/LER-1982-057, Forwards LER 82-057/03L-0 | Forwards LER 82-057/03L-0 | | 05000335/LER-1982-058, Forwards LER 82-058/03L-0 | Forwards LER 82-058/03L-0 | | 05000335/LER-1982-059, Forwards LER 82-059/03L-0 | Forwards LER 82-059/03L-0 | | 05000335/LER-1982-060, Forwards LER 82-060/03L-0 | Forwards LER 82-060/03L-0 | | 05000335/LER-1982-061, Forwards LER 82-061/03L-0 | Forwards LER 82-061/03L-0 | | 05000335/LER-1982-062, Forwards LER 82-062/03L-0 | Forwards LER 82-062/03L-0 | | 05000335/LER-1982-063, Forwards LER 82-063/01T-0 | Forwards LER 82-063/01T-0 | | 05000335/LER-1982-064, Forwards LER 82-064/03L-0 | Forwards LER 82-064/03L-0 | | 05000335/LER-1982-065, Forwards LER 82-065/03L-0 | Forwards LER 82-065/03L-0 | | 05000335/LER-1982-066, Forwards LER 82-066/03L-0 | Forwards LER 82-066/03L-0 | | 05000335/LER-1982-068, Forwards LER 82-068/03L-0 | Forwards LER 82-068/03L-0 | | 05000335/LER-1982-069, Forwards LER 82-069/03L-0 | Forwards LER 82-069/03L-0 | | 05000335/LER-1982-070, Forwards LER 82-070/03L-0 | Forwards LER 82-070/03L-0 | | 05000335/LER-1982-071, Forwards LER 82-071/03L-0 | Forwards LER 82-071/03L-0 | |
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