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List of results

• 05000220/LER-1978-030, 78-031-00, and 78-032-00 for Nine Mile Point Unit 1 Regarding, Respectively, Unavailability of Feedwater Pump 29-03 While Its Pump Seals Were Replaced, Unavailability of Liquid Poison Pump NP02A While a Frozen Valve  + (10:18:19, 7 January 2025)
• 05000220/LER-1978-034, Regarding an Environmental Contractor Obtaining 22 Hourly Fish Impingement Samples, and One Two-Hour Sample, Which Is Contrary to the Technical Specification Requiring 24 Hourly Samples  + (10:18:20, 7 January 2025)
• 05000237/LER-1976-074, For Dresden Unit 2 Regarding a Control Rod J-2 Withdrawal of One Notch and Reactivity Inserted by This Resulted in a Transient Power Increase  + (10:18:22, 7 January 2025)
• 05000237/LER-1977-003, For Dresden Unit 2 Regarding Discovery of an APRM Averaging Card Relay Contact Failure  + (10:18:26, 7 January 2025)
• 05000237/LER-1977-006, For Dresden Unit 2 Regarding Discovery That Three Surveillance Intervals Had Been Inadvertently Exceeded During a Routine Monthly Surveillance Audit  + (10:18:28, 7 January 2025)
• 05000237/LER-1977-009, For Dresden Unit 2 Regarding an Attempt to Replace a Burned-Out Indicating Light Bulb for the Feed Breaker to MCC 28-2 Which Tripped the Feed and Indirectly Removed the Normal Supply to RPS Bus B and the Instrument Bus  + (10:18:29, 7 January 2025)
• 05000237/LER-1977-007, For Dresden Unit 2 Regarding Discovery of IRM 16 to Trip at 122% of Scale and IRM 16s Rod Block Setpoint at 111% Due to Instrument Setpoint Drift  + (10:18:31, 7 January 2025)
• 05000237/LER-1977-008, For Dresden Unit 2 Regarding Discovery of Main Steam Line Low Pressure Isolation Switch 2-261-30C to Trip at 853 PSI, Which Is Below the Technical Specification Requirement of 855 PSI or Greater  + (10:18:33, 7 January 2025)
• 05000237/LER-1977-013, For Dresden Unit 2 Regarding Discovery of a Leak of Reactor Coolant Inside the Primary Containment  + (10:18:39, 7 January 2025)
• 05000237/LER-1997-012, Regarding Discovery That the Unit 2/3 Radwaste Floor Drain Surge Tank Sump Had Overflowed Its Designed Containment Boundaries  + (10:18:40, 7 January 2025)
• 05000237/LER-1977-016, For Dresden Unit 2 Regarding an Incident Concerning the Torque Switch on the Limitorque Operator for Recirculation Pump Suction Valve MO-2-202-4B Opened and Prevented the Valve from Closing While Isolating the B Recirc  + (10:18:46, 7 January 2025)
• 05000237/LER-1977-023, For Dresden Unit 2 Regarding Discovery of the 12% APRM Upscale Rod Block Trip Setting to Be at 12.5% for APRM Channel One Due to Setpoint Drift  + (10:19:05, 7 January 2025)
• ML18018B223  + (10:19:06, 7 January 2025)
• 05000237/LER-1977-024, For Regarding the Inoperability of the Unit 2/3 Diesel Generator for 25 Minutes on June 30, 1977  + (10:19:08, 7 January 2025)
• 05000237/LER-1977-027, Regarding Failure of 46 Control Rod Drives to Fully Insert and Latch at Position 00 Following a Reactor Scram on July 9, 1977  + (10:19:11, 7 January 2025)
• 05000237/LER-1977-018, For Dresden Unit 2 Regarding Fluctuation of a Off-Gas Monitor as a Result of Instrument Drift and Low Input  + (10:19:13, 7 January 2025)
• 05000237/LER-1977-017, For Dresden Unit 2 Regarding Discovery of the Ball Isolation Valve on E Traversing Incore Probe (TIP) System Guide Tube to Open from the Control Room  + (10:19:14, 7 January 2025)
• 05000237/LER-1975-048-01, Letter Enclosing LER 75-048-01 Regarding Current Status of a Long-Term Corrective Action to Prevent Reoccurrence of a Through-Wall Crack in the Drywell-Torus Nitrogen Purge Line 1604-18  + (10:19:18, 7 January 2025)
• ML18018B209  + (10:19:20, 7 January 2025)
• ML18018B205  + (10:19:21, 7 January 2025)
• ML18018B194  + (10:19:22, 7 January 2025)
• ML18018B186  + (10:19:23, 7 January 2025)
• 05000220/LER-1977-012, And LER 77-012-00 for Nine Mile Point Unit 1 Regarding Discovery of Discharge Pressure Switch in 12 Feedwater Pump Discharge Failed in the Closed Position and Regarding Discovery of Contacts on Relay for MSIV Isolation  + (10:19:36, 7 January 2025)
• ML18018B158  + (10:19:39, 7 January 2025)
• ML18018B155  + (10:19:43, 7 January 2025)

• 05000220/LER-1977-020, And LER 77-020-00 for Nine Mile Point Unit 1 Regarding Discovery of Two Containment Oxygen Sampling System Check Valves Indicating Leakage in Excess of Single Valve Technical Specifications  + (10:19:47, 7 January 2025)

• 05000220/LER-1977-022, For Nine Mile Point Unit 1 Regarding Discovery of Linear Indications on Three Collet Retainer Tubes in Drive Mechanisms Removed from the Reactor Vessel  + (10:19:49, 7 January 2025)
• 05000220/LER-1977-021, Regarding Discovery of Sodium Valve for Liquid Effluents Exceeded the Limit of 1.5 Pmm and LER 77-021-00 Relating to the Stack Sample Pump Being Out of Service for 9 Hours 20 Minutes Due to  + (10:19:51, 7 January 2025)
• 05000220/LER-1977-027, For Nine Mile Point Unit 1 Regarding Discovery of an Unacceptable Linear PT Indication in the Pipe at the Safe End to Pipe Weld Joint  + (10:19:53, 7 January 2025)
• ML18018B146  + (10:19:54, 7 January 2025)
• 05000220/LER-1977-028, For Nine Mile Point Unit 1 Regarding Failure of a Reactor Low Water Level Instrument to Trip When Tested  + (10:19:55, 7 January 2025)
• 05000220/LER-1977-029, 77-030-00, 77-031-00, 77-034-00, & 77-035-00 for Nine Mile Point Unit 1 Low-Low-Low Level Set Point Out of Specs on RE-18A, Vacuum Switch Trip & Reset Point on Torus Relief Valves Out of Specs, Weld Leak in Emergency Condenser  + (10:20:00, 7 January 2025)
• ML18018B139  + (10:20:01, 7 January 2025)
• ML18018B138  + (10:20:02, 7 January 2025)
• 05000220/LER-1977-032, For Nine Mile Point Unit 1 Regarding a Water Phase Material Sample in the Reactor Vessel Inspection Lapse During Refueling  + (10:20:03, 7 January 2025)
• ML18018B134  + (10:20:04, 7 January 2025)
• ML18018B133  + (10:20:05, 7 January 2025)
• 05000220/LER-1978-003, Regarding Drywell High Pressure Switch RE04A Setpoint Drift and LER 78-003-00  + (10:20:06, 7 January 2025)
• ML18018B117  + (10:20:08, 7 January 2025)
• ML18018B115  + (10:20:09, 7 January 2025)
• ML18018B114  + (10:20:09, 7 January 2025)
• ML18018B112  + (10:20:10, 7 January 2025)
• 05000410/LER-1999-010-01, For Nine Mile Point, Unit 2, Regarding Two Standby Liquid Control Valves Not Tested as Required by Technical Specification 4.0.5 and LER 99-010-01, Supplement 1, Unit 2 Reactor Trip Due to a Feedwater Master  + (10:20:12, 7 January 2025)
• ML18018B102  + (10:20:13, 7 January 2025)
• ML18018B098  + (10:20:14, 7 January 2025)
• ML18018B099  + (10:20:14, 7 January 2025)
• ML18018B092  + (10:20:15, 7 January 2025)
• ML18018B085  + (10:20:16, 7 January 2025)
• ML18018B082  + (10:20:17, 7 January 2025)
• ML18018B081  + (10:20:18, 7 January 2025)
• ML18018B080  + (10:20:19, 7 January 2025)