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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

List of results

• 05000237/LER-1980-039, /03X-1 for Dresden, Unit 2 Re HPCI Inboard Steam Supply Valve Opened and Had a Dual Light Indication  + (16:17:57, 8 January 2025)
• 05000237/LER-1980-041, /03L-0 for Dresden, Unit 2 Re Reactor Building Vent and Refueling Floor Rad Monitor Surveillance (DCP 2007-12) Was Performed  + (16:17:59, 8 January 2025)
• 05000237/LER-1980-042, /03L-0 for Dresden, Units 2 and 3 Re That Technical Staff Personnel Revealed That the Ultrasonic Testing of the Scram Discharge Volume Was Not Performed During the 1500-2300 Shift  + (16:18:00, 8 January 2025)
• 05000237/LER-1981-030, /01T-0 for Dresden, Unit 2 Re Operator Noticed the HPCI Steam Line Was Cold and Filled with Water. the HPCI System Was Declared Inoperable  + (16:18:02, 8 January 2025)
• 05000237/LER-1981-024, /03L-0 for Dresden, Unit 2 Re While Conducting Routine Review of Surveillance, It Was Found That the Monthly Surveillance Required by Tech. Spec. 4.4.c.1 for Standby Liquid Control Tank Sampling Was Three Days Overdue  + (16:18:03, 8 January 2025)
• 05000237/LER-1980-043, /03L-0 for Dresden, Unit 2 Re Surveillance Testing of the Condenser Low Vacuum Switches, Pressure Switch 2-503D Was Found to Have a Trip Point of 22.85 Inches Hg  + (16:18:07, 8 January 2025)
• 05000237/LER-1980-046, Regarding a Failure to Receive CRD Volume During a Reactor Scram  + (16:18:08, 8 January 2025)
• 05000237/LER-1980-050, /03L-0 for Dresden, Unit 2 Re the 1501-62D Pressure Switch Actuated at 44.2 Inches of Water Increasing, Tech. Spec. Limit Is Less than or Equal to 41.6 Inches of Water Increasing  + (16:18:11, 8 January 2025)
• 05000237/LER-1980-049, /03L-0 for Dresden, Unit 2 Re at Completion of Secondary Containment Leak Rate Test the Reactor Building Ventilation Isolation Valve 2A-5742 Would Not Open  + (16:18:13, 8 January 2025)
• 05000237/LER-1981-007, /03L for Dresden, Unit 2 Re While Conducting Steam Line Area Temperature Switch Calibration Surveillance, Temperature Switch TS 2-261-180 Failed to Trip  + (16:18:16, 8 January 2025)
• 05000237/LER-1978-041, /03L-0 for Dresden, Units 2 and 3 Re While Testing the Diesel Generator to Allow Monthly Inspection of Redundant Diesel the Thermal Overload for the Diesel Cooling Water Pump Tripped  + (16:18:18, 8 January 2025)
• 05000237/LER-1981-080, /031-0 for Dresden, Unit 2 Re Abnormal Degradation of Systems Other than Those Specified in Item B.1.e Above Designed to Contain Radioactive Material Resulting from the Fission Process  + (16:18:19, 8 January 2025)
• 05000237/LER-1981-011-03, L-0 for Dresden, Unit 2 Re Observed Inadequacies in the Implementation of Administrative or Procedural Controls Which Threaten to Cause Reduction of Degree of Redundancy Provided in Reactor Protection Systems or Engineered S  + (16:18:21, 8 January 2025)
• 05000237/LER-1981-015, /03L-0 for Dresden, Unit 2 Re the Fire Marshall Discovered That the Heat Detectors Were Not Functionally Tested within the 6 Month Interval Required by Tech. Spec. 4.12.A.1  + (16:18:23, 8 January 2025)
• 05000237/LER-1978-027, /03L for Dresden, Unit 2 Re a Sample Taken from Radwaste a WST at 1020 After the Tank Was Filled to 88%  + (16:18:33, 8 January 2025)
• 05000237/LER-1978-031, /03L-0 for Dresden, Unit 2 Re PS-2-1430-1466C Failed to Operate  + (16:18:34, 8 January 2025)
• 05000237/LER-1978-032, /03L-0 for Dresden, Unit 2 Re During Steady State Operation, Torus to Drywell Vacuum Breaker 2-1601-33E & F Were Found Inoperable During Routine Operability Surveillance  + (16:18:36, 8 January 2025)
• 05000237/LER-1980-024, /03L-0 for Dresden, Unit 2 Re Drywell Oxygen Concentration Indication Failed Downscale in Violation of Tech. Spec. 3.7.A.6.d  + (16:18:38, 8 January 2025)
• 05000237/LER-1978-035, /01T-0 for Dresden, Unit 2 Re During pre-installation Corrosion Inspection of Recently Purchased Spent Fuel Storage Racks, Cracks Through Weld Metal in Aluminum Channel to Base Plate Fillet Welds Were Found in 8 of 18 Racks  + (16:18:39, 8 January 2025)
• 05000237/LER-1977-047, /01T-0 for Dresden, Unit 2 Re During Refuel Outage 3 Cracks Were Found on CRD Return Nozzle Thermal Sleeve  + (16:18:41, 8 January 2025)
• 05000237/LER-1977-039, /03L-0 for Dresden, Unit 2 Re a Gasket Failure Was Found on Torus Drain Flange 313A Which Degraded the Primary Containment Boundary  + (16:18:43, 8 January 2025)
• 05000237/LER-1977-041, /03L-0 for Dresden, Unit 2 Re APRM 5 Was Found to Ino on 12 Instead of 11 LPRMs Bypassed as Required by T.S. 3.1.1  + (16:18:44, 8 January 2025)
• 05000237/LER-1977-045, /01T-0 for Dresden, Unit 2 Re While Preforming Leak Rate Testing Procedure Dts 1600-1, Measured Leakage for Reactor Feed Check Valves 2-220-58B&62B Were 1149 and 195 Scfh  + (16:18:46, 8 January 2025)
• 05000237/LER-1977-046, /03L-0 for Dresden, Unit 2 Re Two Snubbers 26 and 28 Drywell Were Found to Have Less than the Required Amount for Fluid, Thus Questioning Their Operability  + (16:18:48, 8 January 2025)
• 05000237/LER-1977-043, /03L-0 for Dresden, Unit 2 Re Drywell Hi Pressure Switch PS2-1501-62A Tripped at 42.9 H20 Increasing Pressure  + (16:18:49, 8 January 2025)

• 05000237/LER-1977-044, /03L-0 for Dresden, Unit 2 Re Conditions Leading to Operations in a Degraded Mode Permitted by a Limiting Condition for Operation  + (16:18:51, 8 January 2025)

• 05000237/LER-1977-049, /01T-0 for Dresden, Unit 2 Re Discovery During Plant Life of Conditions Not Specifically Considered in the Safety Analysis Report or Technical Specifications That Require Corrective Measures to Prevent the Existence of Unsafe C  + (16:18:52, 8 January 2025)
• 05000237/LER-1977-050, /03L-0 for Dresden, Unit 2 Re Local Leak Rate Test of Drywell Personnel Air Lock During Refueling  + (16:18:54, 8 January 2025)
• 05000237/LER-1977-057, /01T-0 for Dresden, Unit 2 Re While in Refuel Mode During Refueling, CRD D-2 Select Switch Allowed Two Drives to Be Simultaneously Selected Defeating the Refuel Mode one-rod-permissive, Contrary to T.S. 3.10.D.1  + (16:18:56, 8 January 2025)
• 05000237/LER-1977-058, /01T-0 for Dresden, Unit 2 Re During Refueling Tests Required by LLRT Procedure Dts 1600-1, Torus Air Sample Line Isolation Valves 8501-1A and 1B Had Through Leakage in Excess of Single Valve Ad Penetration Limits  + (16:18:57, 8 January 2025)
• 05000237/LER-1977-059, /03L-0 for Dresden, Unit 2 Re During Normal Operation, Surveillance Program Review Revealed Violation of T.S. 1.0.CC.b Maximum Combined Interval Time by 6.5 Days for HPCI Monthly Valve and Pump Operability  + (16:19:02, 8 January 2025)
• 05000237/LER-1977-051, /03L-0 for Dresden, Units 2 and 3 Re During Surveillance, Diesel Tripped Resulting in Operation of Unit 3 in Degraded Mode Permitted by T.S. 3.9.B.2  + (16:19:06, 8 January 2025)
• 05000237/LER-1978-042, /03L-0 for Dresden, Unit 2 Re During Weekly Turbine Control Vlv Exercising 3 Control Vlv Failed to Fast Close at the 10% Vlv Position  + (16:19:08, 8 January 2025)
• 05000237/LER-1977-056, /03X-2 for Dresden, Unit 2 Re While Unit Was Shut Down for Refueling, Service Water Samples Were Taken at All Containment Cooling Heat Exchangers  + (16:19:10, 8 January 2025)
• ML17252B496  + (16:19:11, 8 January 2025)
• 05000237/LER-1978-044  + (16:19:12, 8 January 2025)
• 05000237/LER-1978-043, /03L-0 for Dresden, Unit 2 Re During Unit start-up, While Pulling CRDs to Criticality on Sequence a the RWM Malfunctioned Causing Rod Insert and Withdraw Blocks  + (16:19:13, 8 January 2025)
• 05000237/LER-1978-045, /03L-0 for Dresden, Unit 2 Re While Performing Monthly Surv. Dis 1400-3, Auto Blow-down Permissive Sw. Ps 2-1430-1466D Tripped at 120 Psig  + (16:19:15, 8 January 2025)
• 05000237/LER-1978-028, /01X-1 for Dresden, Units 2 and 3 Re NRC Request for Immediate Actions to Be Taken to Mitigate the Potential for a Spurious Closure of a Recirculation Loop Suction Valve with a LOCA Occurring Between the Loop Discharge and Suct  + (16:19:17, 8 January 2025)
• 05000237/LER-1978-046, /03L-0 for Dresden, Unit 2 Re Drywell Inspection Was Made After Observing Increased Leakage Into Equipment and Floor Drain Sumps  + (16:19:18, 8 January 2025)
• 05000237/LER-1978-047, /03L-0 for Dresden, Unit 2 Re During Shutdown While Performing Monthly Sblc Tank Boron Concentration Surv., the Volume/Concentration Parameters of Sblc Tank Were Found Outside Tech. Spec. Limits  + (16:19:22, 8 January 2025)
• ML17252B488  + (16:19:23, 8 January 2025)
• 05000237/LER-1976-064, For Dresden, Unit 2 Re Reportable Occurrence Report Submitted with Technical Specifications, Section 6.6.B. Without Enclosures  + (16:19:24, 8 January 2025)
• 05000237/LER-1976-062, Re Upon Completion of Routine Diesel Generator Surveillance Testing, Control Switch Was Placed in the Stop Position, Generator Output Subsequently Became Erratic, Generator Voltage Began Oscillating  + (16:19:32, 8 January 2025)
• 05000237/LER-1976-061, Re During Testing of HPCI Test Return Line, Which Was Suspected to Be Leaking, Was Found That Contamination Demineralized Water Was in Fact Leaking from the Underground Pipe Into the Storm Sewer  + (16:19:34, 8 January 2025)
• 05000237/LER-1976-060, Re Discovery of Water Leakage in Diesel Generator Room Led Identification of Small Hole in HPCI Test Return Line at Condensate Storage Tank  + (16:19:35, 8 January 2025)
• 05000237/LER-1976-058, Re During Pump Operability Testing, Core Spray System Test Valve Failed to Close Against Pump Pressure  + (16:19:38, 8 January 2025)
• 05000237/LER-1976-059, Re Review of Quad-Cities Unusual Event Letter Led to Discovery That Dresdens Standby Gas Treatment System Deviated from Single Failure Criteria That Disabled the SBGT System  + (16:19:39, 8 January 2025)
• 05000237/LER-1976-057, Re Instrument Trip Point for Isolation Was Found at 115.6 Inches H1O Dp During Routine Monthly Surveillance Testing of Reactor Water Level  + (16:19:41, 8 January 2025)
• 05000237/LER-1976-055, For Dresden, Units 2 and 3 Re Following Inspection, Post-Maintenance Surveillance Test Was Performed on a Standby Gas Train. Maximum Attainable Flow Was Below the Tech Spec Limit  + (16:19:42, 8 January 2025)
• 05000237/LER-1976-051, Regarding Failure of Unit 2/3 Diesel Fire Pump to Start During Routine Surveillance Testing  + (16:19:44, 8 January 2025)