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 Issue dateTitleTopic
05000458/LER-2017-00913 November 2017Potential Loss of Safety Function of Secondary Containment due to Unsecured Personnel Door
LER 17-009-00 for River Bend, Unit 1 Regarding Potential Loss of Safety Function of Secondary Containment due to Unsecured Personnel Door
05000458/LER-2017-00721 August 2017Automatic Reactor Scram due to Failure of Main Generator Voltage Regulator Mode Transfer Relay
LER 17-007-00 for River Bend Station - Unit 1 Regarding Automatic Reactor Scram due to Failure of Main Generator Voltage Regulator Mode Transfer Relay
05000458/LER-2017-00613 July 2017Potential Loss of Safety Function of Onsite Power Sources due to Inadvertent Inoperability of Control Building Chiller
LER 17-006-00 for River Bend, Unit 1 re Potential Loss of Safety Function of Onsite Power Sources due to Inoperability of Control Building Chiller
05000458/LER-2016-0038 June 2017Operations Prohibited by Technical Specifications Due to Reactor Control Rod Drift During Core Alterations
LER 16-003-01 for River Bend Station, Unit 1, Regarding Operations Prohibited by Technical Specifications Due to Control Blade Drift During Core Alterations
Shutdown Margin
05000458/LER-2017-0055 June 20171 OF 3
LER 17-005-00 for River Bend Station, Unit 1, Regarding Operations Prohibited by Technical Specifications Due to Inoperable Main Control Room Filter Train
05000458/LER-2017-00422 May 2017Loss of High Pressure Core Spray Safety Function During Surveillance Due to Malfunction of Test Return Valve
LER 17-004-00 for River Bend Station, Unit 1, Regarding Loss of High Pressure Core Spray Safety Function During Surveillance Due to Malfunction of Test Return Valve
05000458/LER-2017-0039 May 2017Manual Reactor Scram Initiated in Response to Increase in Steam Pressure During Steam Leak Troubleshooting
LER 17-003-00 for River Bend Station, Unit 1, Regarding Manual Reactor Scram Initiated in Response to Increase in Steam Pressure During Steam Leak Troubleshooting
05000458/LER-2017-00218 April 2017Loss of Safety Function of Onsite Electrical Distribution Due to Malfunction of Control Building HVAC System
LER 17-002-00 for River Bend Station, Unit 1, Regarding Loss of Safety Function of Onsite Electrical Distribution Due to Malfunction of Control Building HVAC System
Unanalyzed Condition
05000458/LER-2017-0013 April 2017Operations Prohibited by Technical Specifications (Conduct of Operations With a Potential to Drain the Reactor Vessel With Primary Containment Open)
LER 17-001-00 for River Bend Station, Unit 1, Regarding Operations Prohibited by Technical Specifications (Conduct of Operations With a Potential to Drain the Reactor Vessel With Primary Containment Open)
05000458/LER-2016-00725 July 20161 Operations Prohibited by Technical Specifications Due to Failure to Implement Required Actions Within Completion Time
LER 16-007-00 for River Bend Station, Unit 1, Regarding Operations Prohibited by Technical Specifications Due to Failure to Implement Required Actions Within Completion Time
Time of Discovery
05000458/LER-2016-00612 July 2016Potential Loss of Safety Function of Multiple Systems Due to Design Deficiency in 480-volt Circuit Breakers
LER 16-006-00 for River Bend Station re: Potential Loss of Safety Function of Multiple Systems Due to Design Deficiency in 480-volt Circuit Breakers
05000458/LER-2016-00429 March 2016Actuation of the Division 1 Emergency Diesel Generator and Primary Containment Isolation Logic Due to Partial Loss of Offsite Power
LER 16-004-00 for River Bend, Unit 1, Regarding Actuation of the Division 1 Emergency Diesel Generator and Primary Containment Isolation Logic Due to Partial Loss of Offsite Power
Scram Discharge Volume
05000458/LER-2016-0027 March 2016Automatic Reactor Scram and Division 2 Primary Containment Isolation Due to Offsite Grid Electrical Transient
LER 16-002-00 for River Bend, Unit 1, Regarding Automatic Reactor Scram and Division 2 Primary Containment Isolation Due to Offsite Grid Electrical Transient
05000458/LER-2016-0017 March 2016Potential Loss of Secondary Containment Safety Function Due to Failure of Auxiliary Building Ventilation System
LER 16-001-00 for River Bend, Unit 1, Regarding Potential Loss of Secondary Containment Safety Function Due to Failure of Auxiliary Building Ventilation System
05000458/LER-2015-0108 February 2016Potential Loss of Safety Function of High Pressure Core Spray Due to Failure of Main Control Building Ventilation Chiller
LER 15-010-00 for River Bend Station, Unit 1, Regarding Potential Loss of Safety Function of High Pressure Core Spray Due to Failure of Main Control Building Ventilation Chiller
05000458/LER-2015-00926 January 20161 OF 3
LER 15-009-00 for River Bend Station, Unit 1 Regarding Automatic Reactor Scram Due to Partial Loss of Offsite Power Caused by Fault in Local 230K Switchyard
05000458/LER-2015-00818 January 2016Potential Loss of Safety Function of High Pressure Core Spray Due to Failure of Main Control Building Ventilation Chiller
LER 15-008-00 of River Bend Station, Unit 1, Regarding Loss of Safety Function of High Pressure Core Spray Due to Failure of Main Control Building Ventilation Chiller
05000458/LER-2015-00718 January 2016Potential Loss of Safety Function of High Pressure Core Spray Due to Failure of Main Control Building Ventilation Chiller
LER 15-007-00 for River Bend Station - Unit 1 Regarding Potential Loss of Safety Function of High Pressure Core Spray Due to Failure of Main Control Building Ventilation Chiller
RBG-47473, Special Report for NEI 07-07 Notification4 June 2014Special Report for NEI 07-07 NotificationNon-Destructive Examination
ML06271003816 May 2006Final Precursor Analysis - River Bend Station, LER-458/04-005-01, Automatic Reactor Trip Due to Loss of Non-Vital 120V Instrument BusFitness for Duty