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 Issue dateTitleTopic
05000528/LER-2017-00114 June 2017Essential Chiller B Inoperable Due to Refrigerant Leak Resulting in Safety System Functional Failure
LER 17-001-00 for Palo Verde Nuclear Generating Station, Unit 1 Regarding Essential Chiller B Inoperable Due to Refrigerant Leak Resulting in Safety System Functional Failure
Probabilistic Risk Assessment
05000530/LER-2016-00110 January 2017Control Room Essential Filtration System Air Filtration Unit Failure Resulting in a Condition Prohibited by Technical Specifications
LER 16-001-01 for Palo Verde, Unit 3, Regarding Control Room Essential Filtration System Air Filtration Unit Failure Resulting in a Condition Prohibited by Technical Specifications
Probabilistic Risk Assessment
05000528/LER-2016-0024 November 2016Reactor Trip due to Partially Open Pressurizer Main Spray Valve
LER 16-002-00 for Palo Verde, Unit 1, Regarding Reactor Trip due to Partially Open Pressurizer Main Spray Valve
Probabilistic Risk Assessment
05000528/LER-2016-0019 June 2016. Leakage from Reactor Coolant Pump 2B Discharge Pipe Instrument Nozzle
LER 16-001-00 for Palo Verde Nuclear Generating Station Unit 1 RE: Leakage from Reactor Coolant Pump 2B Discharge Pipe Instrument Nozzle
Boric Acid
Probabilistic Risk Assessment
Pressure Boundary Leakage
05000530/LER-2015-0045 February 2016Condition Prohibited by Technical Specifications 3.0.4 and 3.7.2 Due to an Inoperable Main Steam Isolation Valve
LER 15-004-01 for Palo Verde, Unit 3, Regarding Condition Prohibited by Technical Specifications 3.0.4 and 3.7.2 Due to an Inoperable Main Steam Isolation Valve
Time of Discovery
Probabilistic Risk Assessment
ML10340008522 November 2010LER Palo Verde, Unit 3 - Submittal of Special Report 3-SR-2010-001-00, Fuel Building Ventilation System High Range Radioactive Gaseous Effluent Monitor InoperableOffsite Dose Calculation Manual
ML06129025625 April 2006LER 04-02-001 for Palo Verde, Unit 3 Regarding Main Turbine Control System Malfunction Results in Automatic Reactor Trip on Low DNBR
ML06024038929 November 2005Final Precursor Analysis - Palo Verde 1, 2, 3 - Emergency Core Cooling System Piping Voids May Have Prevented Fulfillment of Safety FunctionBoric Acid
Time of Discovery
Probabilistic Risk Assessment
Pressure boundary leak
ML05304006419 October 2005Special Report 2-SR-2005-003-00Post Accident Monitoring
ML05238024713 August 2005LER 005-003-00 for Palo Verde, Unit 2 Regarding Two Independent Trains of Auxiliary Feedwater InoperableUnanalyzed Condition
Probabilistic Risk Assessment
Earthquake
ML0413204584 May 2004Special Report 2-SR-2004-001 for Palo Verde Nuclear Generating Station (PVNGS) Unit 2 Regarding Boron Deposit at Control Element Drive Mechanism VentBoric Acid
Pressure boundary leak
ML03038053131 January 2003LER 03-S01-00 for Palo Verde, Units 1, 2 and 3 Safeguards Material Left UnattendedTime of Discovery
ML02263048711 September 2002Special Report 1-SR-2002-01
ML0222506697 August 2002LER 02-S01-00 for Palo Verde Nuclear Station (Pvng), Units 1,2 & 3 Re Reports Discovery of Uncontrolled Safeguards Material in Palo Verde Nuclear Station (PVNGS) Office Complex Outside of Protected AreaTime of Discovery
ML1014705982 March 2002Event Notification for Palo Verde on Offsite NotificationOffsite Dose Calculation Manual
ML02059044112 February 2002LER 98-003-02, for Palo Verde Units 1, 2 & 3 Re Main Steam Safety Valve As-Found Lift Pressures Outside of Technical Specifications Limits