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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

• 05000249/LER-1978-013, /01T-0 for Dresden 3 Regarding Setpoints Being Set High by 10% During the Quarterly Scheduled Calibration Dis 1700-1  + (16:33:54, 8 January 2025)
• 05000249/LER-1978-015, /03L-0 for Dresden 3 Regarding Discovery of One Snubber in Drywell to Be Functionally Inoperable by Bench Test During Inspection to Check 10% of All Hydraulic Snubbers During Refueling  + (16:33:55, 8 January 2025)
• 05000249/LER-1978-016, /03L-0 for Dresden 3 Regarding Leakage Through Standby Liquid Control Check Valve 3-1101-15 Exceeding the T.S.4.7.A Limit for Single Valve Leakage of 29.38 Scfh  + (16:33:58, 8 January 2025)
• 05000249/LER-1978-017, /01T-0 for Dresden 3 Regarding an NRC Request That Immediate Action 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 Suction Va  + (16:34:00, 8 January 2025)
• 05000249/LER-1978-019, /03L-0 for Dresden 3 Regarding the Discovery of Ps 504C and 504D Found to Trip at 403 PSI and 405 PSI Respectively  + (16:34:01, 8 January 2025)
• 05000249/LER-1978-018, /03L-0 for Dresden 3 Regarding the Discovery of U3 Diesel Oil Storage Tank at 9000 Gal. Which Is Below the 10000 Gal. Limit Required by Technical Specification 3.9.c  + (16:34:03, 8 January 2025)
• 05000249/LER-1977-048, /03L-0 for Dresden 3 Regarding Excessive Leakage Noted Into the Drywell Floor Drains and a Reactor Shutdown Began in Order to Prevent Exceeding the Tech Specification Limit  + (16:34:05, 8 January 2025)
• 05000249/LER-1977-050, /03L-0 for Dresden 3 Regarding an Attempt to Switch Cleanup Pumps and Subsequent System Isolated on High Pressure, and Valve M03-1201-1 Lost All Indication  + (16:34:07, 8 January 2025)
• 05000249/LER-1977-051, /03L-0 for Dresden 3 Regarding Dis 500-2 Setpoint for Reactor Level Switch LIS 3-263-58B Found at ll6.8 Water Dp Which Is Above the Technical Specification Limit  + (16:34:08, 8 January 2025)
• 05000237/LER-1977-054, /01T-0 for Dresden 3 Regarding an Incident Where Unit 2 Was Shut Down for Refueling and Unit 3 at Steady-State Operation, Operability Surveillance Was Performed on Unit 3 Diesel Generator Following Unit 2/3 Diesel Generator Coo  + (16:34:10, 8 January 2025)
• ML17252A355  + (16:34:11, 8 January 2025)
• 05000237/LER-1977-053, /03L-0 for Dresden Regarding an Occurrence Where the D/G Overload Alarm Was Received During an Operability Surveillance  + (16:34:12, 8 January 2025)
• ML17252A353  + (16:34:13, 8 January 2025)
• ML17252A352  + (16:34:14, 8 January 2025)
• 05000237/LER-1977-021, /03X-1 for Dresden 3 Regarding a Pin Hole Leak Found in Minimum Flow Line from 3A Reactor Feedwater Pump (Line 3-3205C-6)  + (16:34:16, 8 January 2025)
• 05000249/LER-1977-057, /03L-0 for Dresden 3 Regarding the Failure of the LPCI Heat Exchange Discharge Valve (M03-1501-3A) to Open  + (16:34:19, 8 January 2025)
• ML17252A346  + (16:34:20, 8 January 2025)
• 05000249/LER-1978-001, /03L-0 for Dresden 3 Regarding the Discovery IRM Nos. 15 and 16 to Trip at 109%  + (16:34:22, 8 January 2025)
• 05000249/LER-1978-002, /03L-0 for Dresden 3 Regarding the Failure of MO-3-1501-5C to Reopen While Performing DOS 1500-1. the Motor Oper. Suction Valve to C LPCI Pp. Closed But Could Not Be Reopened from Control Room  + (16:34:26, 8 January 2025)
• 05000249/LER-1978-003, /01T-0 for Dresden 3 Regarding Discovery of Containment Valve Leakages in Excess of Technical Specification 4.7.A Limits  + (16:34:28, 8 January 2025)
• 05000249/LER-1978-009, /01T-0 for Dresden 3 Regarding an Ultrasonic Inspection of the Safe End-To-Pipe Weld on the CRD Return Line Revealed Indications Which Suggested Cracking  + (16:34:30, 8 January 2025)
• 05000249/LER-1978-007, /03L-0 for Dresden 3 Regarding Dis 2300-6 HPCI Area Temperature SW 2371 a Tripped at 284.3 Degrees Fahrenheit  + (16:34:32, 8 January 2025)
• 05000249/LER-1978-011, /01T-0 for Dresden 3 Regarding Cracks Identified in Cladding of CRD Nozzle Inner Radius and Vessel Wall Beneath Nozzle  + (16:34:33, 8 January 2025)
• 05000249/LER-1978-005, /03L-0 for Dresden 3 Regarding the Discovery of a Pin Hole Leak in Minimum Flow Line from 3B Reactor Feedwater Pump Line 3-3205B-6  + (16:34:35, 8 January 2025)
• 05000249/LER-1978-006, /03L-0 for Dresden 3 Regarding the Discovery of Vacuum Breaker 1601-32F Binding  + (16:34:37, 8 January 2025)

• 05000249/LER-1977-034, Regarding an Interruption in the Feedwater Flow Signal to the Circulation System  + (16:34:39, 8 January 2025)

• 05000249/LER-1977-033, Regarding an Occurrence Where APRM 4 Would Not Generate an Inop Until 13 LPRMs Were Bypassed  + (16:34:40, 8 January 2025)
• 05000249/LER-1977-032, Regarding a Surveillance Interval Discrepancy for the LPCI and Core Spray Pump and Valve Operability  + (16:34:42, 8 January 2025)
• ML17252A333  + (16:34:43, 8 January 2025)
• 05000249/LER-1977-036, Regarding a Failure of Test Valve MO-3-1501-20B Located on the Torus Test Return Line to Open  + (16:34:44, 8 January 2025)
• 05000249/LER-1977-037, For Dresden Unit 3 Regarding an Occurrence of Less than 50% LPRM Inputs in APRM 1 and 2  + (16:34:46, 8 January 2025)
• 05000249/LER-1977-038, Regarding a Discovery of the Breaker for the Diesel Generator Cooling Water Pump Tripped  + (16:34:48, 8 January 2025)
• 05000249/LER-1977-041, /01T-0 for Dresden 3 Regarding Discovery of APRM Nos. 4 and 6 to Inop on 12 Instead of 11 LPRMs Bypassed as Required by Technical Specification Section 3.1, Table 3.1.1  + (16:34:49, 8 January 2025)
• 05000249/LER-1977-039, /03L-0 for Dresden 3 Regarding Setpoint for Reactor Level Switch LIS 3-263-57B Found to Be Above the Technical Specification Limit  + (16:34:51, 8 January 2025)
• 05000249/LER-1977-040, /03L-0 for Dresden 3 Regarding the Circuit Breaker for Service Water Makeup Valve MO-3-4102 to the Isolation Condenser Found in Off Position  + (16:34:53, 8 January 2025)
• 05000249/LER-1977-043, /03L-0 for Dresden 3 Regarding B Main Steam Line Radiation Monitor Indication Doubling  + (16:34:55, 8 January 2025)
• ML17252A324  + (16:34:55, 8 January 2025)
• ML17252A322  + (16:34:57, 8 January 2025)
• 05000249/LER-1977-052, /03L-0 for Dresden 3 Regarding Discovery of DPIS 3-1349A Tripping at a Level Exceeding the Technical Specification Limit  + (16:35:00, 8 January 2025)
• 05000249/LER-1977-017, Regarding the Discovery of APRM 4 to Generate an Inop When 60% of the LPRM Inputs Were Bypassed  + (16:35:01, 8 January 2025)
• 05000249/LER-1977-018, Regarding the Discovery of the Analysis Completion Date for the April 77 Dresden 3 Reactor Water Exceeded the Allowable Limit by 17 Hours  + (16:35:03, 8 January 2025)
• 05000237/LER-1977-020, Regarding a Pin-Hole Leak in a Weld Crack on the 3A Moisture Separator Drain Tank Drain Line  + (16:35:05, 8 January 2025)
• 05000237/LER-1977-022, Regarding an In-Leakage Occurrence, Where Water Was Observed at the 6 Pip Penetration Weld to the Discharge Silencer of the Pump and a Crack Was Noted  + (16:35:08, 8 January 2025)
• 05000249/LER-1977-022, Regarding Water Observed at the 6 Pipe Penetration Weld to the Discharge Silencer of the Pump and a Crack Was Noted  + (16:35:10, 8 January 2025)
• 05000249/LER-1977-021, Regarding the Discovery of a Pin Hole Leak in the Minimum Flow Line from the 3A Reactor Feedwater Pump During a Reactor Shutdown  + (16:35:12, 8 January 2025)
• 05000249/LER-1977-025, LERs 77-025-00, 77-026-00, 77-027-00 for Dresden Unit 3 Regarding Electromagnetic Relief Valves 3-203-3C and 3D, the Failure of 3D Electromatic Relief Valve, and the Failure of Electromatics 203-3D and 3E  + (16:35:14, 8 January 2025)
• 05000237/LER-1977-019, Updated LER 77-019-00 for Dresden Unit 3 Regarding on 06/06/1977, During Routine Half Core Control Rod Drive (CRD) Scram Testing at 46% Power, CRD H-9 (Core Location 30-35) Was Responding Irregularly  + (16:35:16, 8 January 2025)
• 05000237/LER-1977-010, Updated LER 77-010-00 for Dresden Unit 3 Regarding Routine Calibration Checks, Undervoltage Relays for Buses 34-1 and 38 Were Found to Be Apparently Inoperative  + (16:35:19, 8 January 2025)
• 05000249/LER-1977-011, Regarding Reactor Building Vacuum Breaker A03-1601-20A Not Opening as Required During a Routine Surveillance  + (16:35:23, 8 January 2025)
• 05000249/LER-1977-012-01, Regarding a Failure of the Responsible Radman to Collect the Required 4 Hour Reactor Water Sample During the Start-Up  + (16:35:25, 8 January 2025)
• 05000249/LER-1977-012, Regarding a Reactor Water Sampling Interval Violation on April 29, 1977  + (16:35:27, 8 January 2025)