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	Issue date	Title	Topic
05000390/LER-2016-001	9 March 2016	Channel Mode Switch in Incorrect Position Renders Lower Containment Atmosphere Particulate Radiation Monitor Inoperable LER 16-001-00 for Watts Bar, Unit 1, Regarding Channel Mode Switch in Incorrect Position Renders Lower Containment Atmosphere Particulate Radiation Monitor Inoperable	Safe Shutdown Grab sample
05000390/LER-2016-003	10 May 2016	Technical Specification Surveillance Requirement Not Met During Emergency Core Cooling System Venting LER 16-003-00 for Watts Bar, Unit 1, Regarding Technical Specification Surveillance Requirement Not Met During Emergency Core Cooling System Venting	Safe Shutdown Probabilistic Risk Assessment Temporary Modification Missed surveillance
05000390/LER-2016-004	23 May 2016	Automatic Reactor Trip Due to Actuation of Over Temperature Delta Temperature Bistables LER 16-004-00 for Watts Bar, Unit 1, Regarding Automatic Reactor Trip Due to Actuation of Over Temperature Delta Temperature Bistables	Safe Shutdown
05000390/LER-2016-005	13 May 2016	Both Trains of Unit 1 Emergency Gas Treatment System Inoperable During Unit 2 Testing LER 16-005-00 for Watts Bar, Unit 1, Regarding Both Trains of Unit 1, Emergency Gas Treatment System Inoperable During Unit 2, Testing	Safe Shutdown Stroke time Safe Shutdown Earthquake Past operability
05000390/LER-2016-006	30 June 2016	Undersized Room Cooler Fan Shaft Results in Loss of Centrifugal Charging Pump LER 16-006-00 for Watts Bar, Unit 1, Regarding Undersized Room Cooler Fan Shaft Results in Loss of Centrifugal Charging Pump	Safe Shutdown Mission time Past operability
05000390/LER-2016-007	20 June 2016	Technical Specification Action Not Met for Rod Position Indication LER 16-007-00 for Watts Bar Nuclear Plant, Unit 1 Regarding Technical Specification Action Not Met for Rod Position Indication	Safe Shutdown Rod Drop Event
05000390/LER-2016-008	15 July 2016	Emergency Diesel Generator Manual Start Due to Loss of Voltage on the 6.9kV Shutdown Board 1B-B LER 16-008-00 for Watts Bar, Unit 1, Regarding Emergency Diesel Generator Manual Start Due to Loss of Voltage on the 6.9kV Shutdown Board 1B-B	Safe Shutdown Open Phase Condition
05000390/LER-2016-009	15 July 2016	Failure to Complete Surveillance Requirements Causes a Condition Prohibited by the Technical Specifications LER 16-009-00 for Watts Bar, Unit 1, Regarding Failure to Complete Surveillance Requirements Causes Conditions Prohibited by the Technical Specifications	Missed surveillance
05000390/LER-2016-010	8 August 2016	Emergency Diesel Generator Crankcase Pressure Switches Not Analyzed to Withstand the Effects of a Tornado LER-16-010-00 for Watts Bar Nuclear Plant, Units 1 and 2 Regarding Emergency Diesel Generator Crankcase Pressure Switches Not Analyzed to Withstand the Effects of a Tornado	Safe Shutdown Unanalyzed Condition
05000390/LER-2016-011	9 December 2016	Loss of Centrifugal Charging Pump Due to Repeat Failure of Associated Room Cooler LER 16-011-01 for Watts Bar Nuclear Plant, Unit 1 Regarding Loss of Centrifugal Charging Pump Due to Repeat Failure of Associated Room Cooler	Safe Shutdown Mission time Past operability
05000390/LER-2017-001	14 February 2017	Failure of Emergency Raw Cooling Water Pump Reverse Rotation Keys Represents Potential Common Cause Inoperability Watts Bar, Units 1 and 2 - Cancellation of Licensee Event Report 390/2017-001 Related to Essential Raw Cooling Water Pump Reverse Rotation Keys Representing a Potential Common Cause lnoperability	Safe Shutdown
05000390/LER-2017-002	22 February 2017	Incorrectly Hung Clearance Leads to a Condition Prohibited by the Technical Specifications LER 17-002-00 for Watts Bar Nuclear Plant, Unit 1, Regarding: Incorrectly Hung Clearance Leads to a Condition Prohibited by the Technical Specifications	Safe Shutdown
05000390/LER-2017-003	3 March 2017	Inadequate Operability Determination Leads to a Condition Prohibited by the Technical Specifications LER 17-003-00 for Watts Bar, Unit 1, Regarding Inadequate Operability Determination Leads to a Condition Prohibited by the Technical Specifications	Safe Shutdown Safe Shutdown Earthquake Functionality Assessment Pressure boundary leak Through-Wall Leak
05000390/LER-2017-004	31 August 2017	Manual Reactor Trips Due to Failed Reactor Coolant Pump Power Transfer During Plant Startup LER 17-004-01 for Watts Bar, Unit 1, Regarding Manual Reactor Trips Due to Failed Reactor Coolant Pump Power Transfer During Plant Startup	Safe Shutdown Anticipated operational occurrence
05000390/LER-2017-005	10 July 2017	Isolation of the 1 B-B Safety Injection Pump Leads to Condition Prohibited by Technical Specifications LER 17-005-00 for Watts Bar re Isolation of the 1B-B Safety Injection Pump Leads to a Condition Prohibited by Technical Specifications	Safe Shutdown
05000390/LER-2017-006	31 July 2017	Structural Degradation of 161 kV Line Pole Leads to a Condition Prohibited by Technical Specifications LER 17-006-00 for Watts Bar, Unit 1, Regarding Structural Degradation of 161 kV Line Pole Leads to a Condition Prohibited by Technical Specifications	Safe Shutdown
05000390/LER-2017-007	8 August 2017	Multiple Unreported Potential Loss of Safety Function Events Associated with Inoperable Single Train Systems Due to Misinterpretation of Reporting Guidance LER 17-007-00 for Watts Bar, Unit 1, Regarding Multiple Unreported Potential Loss of Safety Function Events Associated with Inoperable Single Train Systems Due to Misinterpretation of Reporting Guidance	Safe Shutdown Rod Drop Event
05000390/LER-2017-008	14 August 2017	Shield Building Inoperability and Potential Loss of Safety Function Resulting from Spurious Equipment Operation LER 17-008-00 for Watts Bar, Unit 1, Regarding Shield Building Inoperability and Potential Loss of Safety Function Resulting from Spurious Equipment Operation	Safe Shutdown
05000390/LER-2017-010	10 October 2017	Actuation of Turbine Driven Auxiliary Feedwater Pump Due to Loss of 6.9kV Shutdown Board LER 17-010-00 for Watts Bar Nuclear Plant, Unit 1 Regarding Actuation of Turbine Driven Auxiliary Feedwater Pump Due to Loss of 6.9kV Shutdown Board	Safe Shutdown
05000390/LER-2017-011	23 October 2017	Failure to Enter Technical Specification 3.6.3 for Containment Isolation Valve LER 17-011-00 for Watts Bar, Unit 1, Regarding Failure to Enter Technical Specification 3.6.3 for Containment lsolation Valve	Safe Shutdown Time of Discovery
05000390/LER-2017-012	23 October 2017	Error in Plant Emergency Procedures Leads to a Condition Prohibited by the Technical Specifications LER 17-012-00 for Watts Bar, Unit 1, Regarding Error in Plant Emergency Procedures Leads to a Condition Prohibited by the Technical Specifications	Safe Shutdown Past operability Probabilistic Risk Assessment
05000390/LER-2017-013	24 January 2018	1 OF 5 LER 17-013-01 for Watts Bar Nuclear Plant, Units 1 and 2 Regarding Incorrectly Adjusted Auxiliary Building Gas Treatment System Damper Leads to a Condition Prohibited by Technical Specifications	Safe Shutdown Safe Shutdown Earthquake Past operability Probabilistic Risk Assessment
05000390/LER-2017-014	20 December 2017	Main Control Room Boundary Door Left Open Leading to a Loss of Safety Function LER 17-014-00 for Watts Bar, Unit 1, Regarding Main Control Room Boundary Door Left Open Leading to a Loss of Safety Function	Safe Shutdown Probabilistic Risk Assessment
05000390/LER-2017-015	8 January 2018	Failure to Enter Limiting Condition of Operation Action Statement Results in a Condition Prohibited by Technical Specifications LER 17-015-00 for Watts Bar, Units 1 and 2, Regarding Failure to Enter Limiting Condition of Operation Action Statement Results in a Condition Prohibited by Technical Specifications	Safe Shutdown
05000391/LER-2016-001	13 June 2016	Loss of Automatic Containment Isolation for the Steam Generator Blowdown Sampling Lines LER 16-001-00 for Watts Bar, Unit 2, Regarding Loss of Automatic Containment Isolation for the Steam Generator Blowdown Sampling Lines	Safe Shutdown
05000391/LER-2016-002	11 July 2016	Turbine Driven Auxiliary Feedwater Pump Inoperable for Longer than Allowable Outage Time due to Turbine Speed Control Failure LER 16-002-00 for Watts Bar, Unit 2, Regarding Turbine Driven Auxiliary Feedwater Pump Inoperable for Longer Than Allowable Outage Time Due to Turbine Speed Control Failure	Safe Shutdown Past operability
05000391/LER-2016-003	27 July 2016	Turbine Driven Auxiliary Feedwater Pump Inoperable for Longer than Allowable Outage Time due to Governor Valve Spring Over-Tensioning LER 16-003-00 for Watts Bar, Unit 2, Regarding Turbine Driven Auxiliary Feedwater Pump lnoperable for Longer Than Allowable Outage Time Due to Governor Valve Spring Over-Tensioning	Safe Shutdown Past operability
05000391/LER-2016-004	4 August 2016	Reactor Trip and Safety Injection Actuation Caused by Turbine Governor Valve Failure LER 16-004-00 for Watts Bar, Unit 2, Regarding Reactor Trip and Safety Injection Actuation Caused by Turbine Governor Valve Failure	Safe Shutdown Flow Induced Vibration
05000391/LER-2016-005	19 August 2016	Main Feedwater Pump Trip on Loss of Condenser Vacuum Leads to Turbine Trip and Reactor Trip LER 16-005-00 for Watts Bar, Unit 2, Regarding Main Feedwater Pump Trip on Loss of Condenser Vacuum Leads to Turbine Trip and Reactor Trip	Safe Shutdown
05000391/LER-2016-008	28 October 2016	Reactor Trip Resulting from Failure of 2B Main Bank Transformer LER 16-008-00 for Watts Bar, Unit 2, Regarding Reactor Trip Resulting from Failure of 2B Main Bank Transformer	Safe Shutdown
05000391/LER-2017-001	3 May 2017	Containment Airlock Function Lost Due to Equalizing Valve Not Closing LER 17-001-00 for Watts Bar, Unit 2, Regarding Containment Airlock Function Lost Due to Equalizing Valve Not Closing	Safe Shutdown
05000391/LER-2017-002	12 May 2017	Manual Reactor Trip as a Result of a Secondary Plant Transient LER 17-002-00 for Watts Bar, Unit 2, Regarding Manual Reactor Trip as a Result of a Secondary Plant Transient	Safe Shutdown Anticipated operational occurrence Power change
05000391/LER-2017-003	22 May 2017	Automatic Start of Auxiliary Feedwater System Due to Main Condenser Failure LER 17-003-00 for Watts Bar, Unit 2, Regarding Automatic Start of Auxiliary Feedwater System Due to Main Condenser Failure	Safe Shutdown Anticipated operational occurrence
05000391/LER-2017-004	25 September 2017	Manual Reactor Trip Due to Inoperable Rod Position Indication LER 17-004-00 for Watts Bar Nuclear Plant, Unit 2 Regarding Manual Reactor Trip Due to Inoperable Rod Position Indication	Safe Shutdown Anticipated operational occurrence
05000391/LER-2017-005	25 January 2018	Unplanned Emergency Core Cooling System Injection into the Reactor Coolant System due to Personnel Error LER 17-005-00 for Watts Bar, Unit 2, Regarding Unplanned Emergency Core Cooling System Injection into the Reactor Coolant System due to Personnel Error	Safe Shutdown
CNL-13-102, TVA - Submittal of Revision 39 to Central Emergency Control Center - Emergency Plan Implementing Procedure CECC EPIP-8, Dose Assessment Staff Activities During Nuclear Plant Radiological Emergencies	18 October 2013	TVA - Submittal of Revision 39 to Central Emergency Control Center - Emergency Plan Implementing Procedure CECC EPIP-8, Dose Assessment Staff Activities During Nuclear Plant Radiological Emergencies
CNL-13-110, Central Emergency Control Center - Revision 20 to Emergency Plan Implementing Procedure Revision CECC EPIP-19, Post Accident Fuel Damage Assessment	8 November 2013	Central Emergency Control Center - Revision 20 to Emergency Plan Implementing Procedure Revision CECC EPIP-19, Post Accident Fuel Damage Assessment
CNL-13-112, Response to NRC Request for Additional Information Related to License Amendment Request to Updated Final Safety Analysis Report Changes Associated with Hydrologic Analysis from Mechanical and Civil Engineering Branch	21 October 2013	Response to NRC Request for Additional Information Related to License Amendment Request to Updated Final Safety Analysis Report Changes Associated with Hydrologic Analysis from Mechanical and Civil Engineering Branch	Hydrostatic Earthquake
CNL-13-113, Submittal of Central Emergency Control Center - Emergency Plan Implementing Procedure Revision. Includes CECC EPIP-9, Revision 50	31 October 2013	Submittal of Central Emergency Control Center - Emergency Plan Implementing Procedure Revision. Includes CECC EPIP-9, Revision 50
CNL-13-114, the Tennessee Valley Authority (TVA) Nuclear Power Group Commercial Grade Dedication Recovery Project - October 2013 Status Report	31 October 2013	the Tennessee Valley Authority (TVA) Nuclear Power Group Commercial Grade Dedication Recovery Project - October 2013 Status Report	Commercial Grade Dedication
CNL-13-115, Change to Commitment Date Response to NRC Request for Additional Information Related to Integrated Plan in Response to Commission Order EA-12-051	29 October 2013	Change to Commitment Date Response to NRC Request for Additional Information Related to Integrated Plan in Response to Commission Order EA-12-051	Spent Fuel Pool Instrumentation
CNL-13-116, Response to NRC Request for Additional Information Related to 2012 Steam Generator Inspection Report	22 November 2013	Response to NRC Request for Additional Information Related to 2012 Steam Generator Inspection Report
CNL-13-119, Revision to Watts Bar Nuclear Plant, Unit 1, Reactor Vessel Surveillance Capsule Withdrawal Schedule	22 November 2013	Revision to Watts Bar Nuclear Plant, Unit 1, Reactor Vessel Surveillance Capsule Withdrawal Schedule
CNL-13-121, Service List Update for Routine Information	24 December 2013	Service List Update for Routine Information
CNL-13-122, Service List Update for Documents Containing Official Use Only and Safeguards Information	24 December 2013	Service List Update for Documents Containing Official Use Only and Safeguards Information
CNL-13-124, Tennessee Valley Authority - Response to NRC Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding the Watts Bar Nuclear Plant Seismic Walkdown Results of Recommendation 2.3 of the Near-Term Ta	2 December 2013	Tennessee Valley Authority - Response to NRC Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding the Watts Bar Nuclear Plant Seismic Walkdown Results of Recommendation 2.3 of the Near-Term Task	Fukushima Dai-Ichi Design basis earthquake Earthquake Scaffolding
CNL-13-125, Response to NRC Request for Additional Information Related to Overall Integrated Plan in Response to the Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051)	22 November 2013	Response to NRC Request for Additional Information Related to Overall Integrated Plan in Response to the Commission Order Modifying Licenses with Regard to Requirements for Reliable Spent Fuel Pool Instrumentation (Order Number EA-12-051) (	Safe Shutdown Earthquake Operating Basis Earthquake FLEX Design basis earthquake Spent Fuel Pool Instrumentation Earthquake
CNL-13-134, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A	5 December 2013	Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A	Fitness for Duty Offsite Dose Calculation Manual Safe Shutdown Earthquake Coatings Nondestructive Examination B.5.b Process Control Program Fire Protection Program Grace period
CNL-13-135, Application to Update Watts Bar Unit 1 License Condition 2.F to Allow Two-Unit Operation (WBN-TS-13-18)	20 December 2013	Application to Update Watts Bar Unit 1 License Condition 2.F to Allow Two-Unit Operation (WBN-TS-13-18)	Hot Short Safe Shutdown Boric Acid Shutdown Margin High Radiation Area Ultimate heat sink Fire Barrier Safe Shutdown Earthquake Enforcement Discretion Operating Basis Earthquake Operator Manual Action Zebra Mussel Multiple Spurious Operation Emergency Lighting Incorporated by reference Thermoset B.5.b Mitigating Strategies Earthquake Accidental discharge Continuous fire watch Fire Protection Program Fire Watch Hourly Fire Watch
CNL-13-137, Third Progress Update on Improved Flood Mitigation System Project	31 December 2013	Third Progress Update on Improved Flood Mitigation System Project

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