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 Issue dateTitleTopic
05000247/LER-2015-00129 August 2017Technical Specification (TS) Prohibited Condition Due to an Inoperable Containment Caused by a Service Water Pipe Leak with a Flaw Size that Results in Exceeding the Allowed Leakage Rate for Containment
LER 15-001-02 for Indian Point, Unit 2, Regarding Technical Specification (TS) Prohibited Condition Due to an Inoperable Containment Caused by a Service Water Pipe Leak with a Flaw Size that Results in Exceeding the Allowed Leakage Rate for Containment
Time of Discovery
Through-Wall Leak
Through Wall Leak
05000247/LER-2015-0033 February 2016Manual Reactor Trip Due to Indications of Multiple Dropped Control Rods Caused by Loss of Control Rod Power Due to a Power Supply Failure
LER 15-003-00 for Indian Point, Unit 2, Regarding Manual Reactor Trip Due to Indications of Multiple Dropped Control Rods Caused by Loss of Control Rod Power Due to a Power Supply Failure
Boric Acid
05000247/LER-2015-00418 February 2016Safety System Functional Failure Due to an Inoperable Containment Caused by a Flawed Elbow on the 21 Fan Cooler Unit Service Water Motor Cooling Return Pipe
LER 15-004-00 for Indian Point 2 Regarding Safety System Functional Failure Due to an Inoperable Containment Caused by a Flawed Elbow on the 21 Fan Cooler Unit Service Water Motor Cooling Return Pipe
Time of Discovery
Through Wall Leak
05000247/LER-2016-0012 May 2016Technical Specification Prohibited Condition Caused by One Main Steam Safety Valve Outside Its As-Found Lift Set Point Test Acceptance Criteria
LER 16-001-00 for Indian Point 2 RE: Technical Specification Prohibited Condition Caused by One Main Steam Safety Valve Outside Its As-Found Lift Set Point Test Acceptance Criteria
Anticipated operational occurrence
05000247/LER-2016-00228 February 2017Automatic Actuation of Emergency Diesel Generators (EDGs) Due to 480 VAC Bus Undervoltage Condition and Loss of Residual Heat Removal (RHR) While in Cold Shutdown
LER 16-002-01 for Indian Point, Unit 2 Regarding Automatic Actuation of Emergency Diesel Generators (EDGs) Due to 480 VAC Bus Undervoltage Condition and Loss of Residual Heat Removal (RHR) While in Cold Shutdown
Boric Acid
Past operability
05000247/LER-2016-00431 May 2016Unanalyzed Condition due to Degraded Reactor Baffle-Former Bolts
LER 16-004-00 for Indian Point 2 re Unanalyzed Condition Due to Degraded Reactor Baffle-Former Bolts
Safe Shutdown
Unanalyzed Condition
Time of Discovery
05000247/LER-2016-00525 May 2016Technical Specification (TS) Prohibited Condition Due to a Surveillance Requirement Never Performed for Testing the Trip of the Main Boiler Feedwater Pumps
LER 16-005-00 for Indian Point, Unit 2, Regarding Technical Specification (TS) Prohibited Condition Due to a Surveillance Requirement Never Performed for Testing the Trip of the Main Boiler Feedwater Pumps
Missed surveillance
05000247/LER-2016-01028 February 2017Safety System Functional Failure Due to an Inoperable Containment Caused by a Through Wall Defect in a Service Water Supply Pipe Elbow to the 24, Fan Cooler Unit
LER 16-010-01 for Indian Point 2 Regarding Safety System Functional Failure Due to an Inoperable Containment Caused by a Through Wall Defect in a Service Water Supply Pipe Elbow to the 24 Fan Cooler Unit
Coatings
Through-Wall Leak
Through Wall Leak
05000247/LER-2017-00122 August 2017Manual Reactor Trip Due to Decreasing Steam Generator Levels Caused By Main Boiler Feedwater Pump Turbine Low Pressure Governor Valves Failed Closed
LER 17-001-00 for Indian Point, Unit 2 Regarding Manual Reactor Trip Due to Decreasing Steam Generator Levels Caused By Main Boiler Feedwater Pump Turbine Low Pressure Governor Valves Failed Closed
Power change
Loctite
05000247/LER-2017-00222 August 2017Auxiliary Feedwater Flow Indication Inoperable for Longer Than the Allowed Technical Specification Completion Time Due to Failure of Complete Restoration Following Calibration
LER 17-002-00 for Indian Point, Unit 2 Regarding Auxiliary Feedwater Flow Indication Inoperable for Longer Than the Allowed Technical Specification Completion Time Due to Failure of Complete Restoration Following Calibration
05000247/LER-2017-00323 August 2017Technical Specification Violation of Section 3.3.1 RPS Instrumentation
LER 17-003-00 for Indian Point Unit 2, Regarding Technical Specification Violation of Section 3.3.1 RPS Instrumentation
Safe Shutdown
05000286/LER-2014-0041 August 2016Automatic Reactor Trip as a Result of Meeting the Trip Logic for Over Temperature Delta Temperature during Reactor Protection System Pressurizer Pressure Calibration
LER 14-004-01 for Indian Point Unit 3, Regarding Automatic Reactor Trip as a Result of Meeting the Trip Logic for Over Temperature Delta Temperature During Reactor Protection System Pressurizer Pressure Calibration
05000286/LER-2015-00414 September 2016Automatic Reactor Trip Due to a Turbine-Generator Trip Caused by a Failure of the 31 Main Transformer
LER 15-004-01 for Indian Point Unit No. 3 Regarding Automatic Reactor Trip Due to a Turbine-Generator Trip Caused by a Failure of the 31 Main Transformer
Main transformer failure
05000286/LER-2015-00514 September 2016Automatic Reactor Trip Due to a Turbine-Generator Trip Caused by the Trip of 345kV Main Generator Output Breaker 3 due to a Failure of South Ring Bus 345kV Breaker 5
LER 15-005-01 for Indian Point 3 RE: Automatic Reactor Trip Due to a Turbine-Generator Trip Caused by the Trip of 345kV Main Generator output Breaker 3 due to a Failure of South Ring Bus 345kV Breaker 5
05000286/LER-2015-0068 August 2016Technical SpecificatiOn Prohibited Condition Due to Two Pressurizer Code Safety Valves Discovered Outside their As-Found Lift Setpoint Test Acceptance Criteria
LER 15-006-01 for Indian Point Unit No. 3 Regarding Technical Specification Prohibited Condition Due to Two Pressurizer Code Safety Valves Discovered Outside Their As-Found Lift Setpoint Test Acceptance Criteria
05000286/LER-2015-0076 September 2016Manual Reactor Trip Due to Decreasing Steam Generator Water Levels Caused by a Miss- Wired Circuit Board in the Main Feedwater Pump Speed Control System
LER 2015-007-01 for Indian Point, Unit 3 Regarding Manual Reactor Trip Due to Decreasing Steam Generator Water Level Caused by a Miss-Wired Circuit Board in the Main Feedwater Pump Speed Control System
05000286/LER-2015-00811 February 2016Automatic Reactor Trip Due to a Turbine-Generator Trip as a Result of a Fault on 345 kV Feeder W96 Tower Lines Caused by Pre-Existing Degraded Insulator
LER 15-008-00 for Indian Point, Unit 3, Regarding Automatic Reactor Trip Due to a Turbine-Generator Trip as a Result of a Fault on 345 kV Feeder W96 Tower Lines Caused by Bird Streaming
05000286/LER-2017-00113 July 2017Single Flow Barrier Access Point Found Unbolted
LER 17-001-00 for Indian Point, Unit 3 Regarding Single Flow Barrier Access Point Found Unbolted
Locked High Radiation Area
Scaffolding
05000286/LER-2017-0029 August 2017Manual Isolation of Chemical and Volume Control System Normal Letdown to Stop a Valve Leak Resulted in an Exceedance of Technical Specification 3.4.9 Condition A Limit for Pressurizer Level
LER 17-002-00 for Indian Point, Unit 3 re Manual Isolation of Chemical and Volume Control System Normal letdown to Stop a Valve Leak Resulted in an Exceedance of Technical Specification 3.4.9 Condition A Limit for Pressurizer Level
Safe Shutdown
05000286/LER-2017-00329 August 2017Condensate Storage Tank Declared Inoperable Per Technical Specification
LER 17-003-00 for Indian Point, Unit 3, Regarding Condensate Storage Tank Declared Inoperable Per Technical Specification
Time of Discovery
Non-Destructive Examination
Through Wall Leak
05000286/LER-2017-00420 December 2017Reactor Trip Due to Main Generator Loss of Field
LER 17-004-00 for Indian Point Unit 3, Regarding Reactor Trip Due to Main Generator Loss of Field
Temporary Modification
05000293/LER-2016-0019 June 2016Both Emergency Diesel Generators Inoperable
LER 16-001-00 for Pilgrim Nuclear Power Station Regarding Both Emergency Diesel Generators Inoperable
Safe Shutdown
Abnormal operational transient
Pressure boundary leak
05000293/LER-2016-00220 June 2016Online Maintenance Test Configuration Prohibited By Technical Specifications
LER 16-002-00 for Pilgrim Nuclear Power Station Regarding Online Maintenance Test Configuration Prohibited By Technical Specifications
Safe Shutdown
Abnormal operational transient
05000293/LER-2016-00311 July 2016Spent Fuel Storage Design Feature Exceeded
LER 16-003-00 for Pilgrim Nuclear Power Station Regarding Spent Fuel Storage Design Feature Exceeded
Unanalyzed Condition
05000293/LER-2016-00411 July 2016Salt Service Water Pump B Past Operability - Operation or Condition Prohibited by Technical Specifications
LER 16-004-00 for Pilgrim Nuclear Power Station Regarding Salt Service Water Pump B Past Operability - Operation or Condition Prohibited by Technical Specifications
Past operability
05000293/LER-2016-0074 November 2016Manual Reactor Scram Due To Feedwater Regulating Valve Malfunction
LER 16-007-00 for Pilgrim Nuclear Power Station Regarding Manual Reactor Scram Due To Feedwater Regulating Valve Malfunction
Reactor Vessel Water Level
Packing leak
Power change
05000293/LER-2016-0089 December 2016Emergency Diesel Generator 'A' Past Inoperability
LER 16-008-00 for Pilgrim Nuclear Power Station Regarding Emergency Diesel Generator 'A' Past Inoperability
Safe Shutdown
Time of Discovery
Mission time
Abnormal operational transient
05000293/LER-2016-01014 June 2017MSIV Inoperability Led to a Condition Prohibited by the Plant s Technical Specifications
LER 16-010-01 for Pilgrim Nuclear Power Station re MSIV Inoperability
Packing leak
05000293/LER-2017-00117 July 2017Reactor Building Isolation Dampers Failed to Isolate
LER 17-001-01 for Pilgrim Nuclear Power Station Regarding Reactor Building Isolation Dampers Failed to Isolate
05000293/LER-2017-00225 May 2017Isolation of HPCI
LER 17-002-00 for Pilgrim Regarding Isolation of HPCI
05000293/LER-2017-00325 May 2017Supplement to Suppression Pool Declared Inoperable Due to High Water Level
LER 17-003-00 for Pilgrim Nuclear Power Station Regarding Pressure Suppression Pool Declared Inoperable Due to High Water Level
Time of Discovery
05000293/LER-2017-0042 June 2017Secondary Containment Testing Led to Loss of Safety Function to Both Trains of Standby Gas Treatment System
LER 17-004-00 for Pilgrim Nuclear Power Station Regarding Secondary Containment Testing Led to Loss of Safety Function to Both Trains of Standby Gas Treatment System
Mission time
05000293/LER-2017-0057 June 201710 CFR 50, Appendix J, Option B, Leak Rate Criteria Exceeded
LER 17-005-00 for Pilgrim Regarding 10 CFR 50, Appendix J, Option B, Leak Rate Criteria Exceeded
Fuel cladding
05000293/LER-2017-00613 June 2017Source Range Monitor Inoperable During Fuel Movement
LER 17-006-00 for Pilgrim Nuclear Power Station Regarding Source Range Monitor Inoperable During Fuel Movement
05000293/LER-2017-00722 June 2017Supplement to Potential Inoperability of Safety Relief Valve 3A
LER 17-007-00 for Pilgrim Regarding Potential Inoperability of Safety Relief Valve 3A
05000293/LER-2017-00830 June 2017Supplement to 480V Bus B6 Auto Transfer Function Degraded Due to Time Delay Relay Failure
LER 17-008-00 for Pilgrim re 480V Bus B6 Auto Transfer Function Degraded Due to Time Delay Relay Failure
05000293/LER-2017-00917 July 2017Supplement to Potential Primary Containment System Inoperability Due to Relay Concerns
LER 17-009-00 for Pilgrim Nuclear Power Station Regarding Potential Primary Containment System lnoperability Due to Relay Concerns
Fuel cladding
05000293/LER-2017-0107 August 2017Air Accumulation Creates Small Void in Core Spray Discharge Piping
LER 17-010-00 for Pilgrim re Air Accumulation Creates Small Void in Core Spray Discharge Piping
Time of Discovery
05000293/LER-2017-01115 August 2017Simultaneously Opened Reactor Building Airlock Doors Caused Loss of Secondary Containment
LER 17-011-00 for Pilgrim Nuclear Power Station Regarding Simultaneously Opened Reactor Building Airlock Doors Caused Loss of Secondary Containment
Recently irradiated fuel
05000293/LER-2017-01213 November 2017Start-Up Transformer Degraded Voltage Relay Found Outside Technical Specification Limit
LER 17-012-00 for Pilgrim Nuclear Power Station Regarding Start-Up Transformer Degraded Voltage Relay Found Outside Technical Specification Limit
05000293/LER-2017-01325 January 20181 OF 4
LER 17-013-00 for Pilgrim Nuclear Power Station Regarding Reportable Conditions Involving Standby Gas Treatment System and Secondary Containment lnoperability Not Reported During the Previous Three Years
Mission time
Recently irradiated fuel
BVY 02-078, Proof of Financial Protection (10 CFR.140.15) and Guarantee Payment of Deferred Premiums (10 CFR 140.21)9 October 2002Proof of Financial Protection (10 CFR.140.15) and Guarantee Payment of Deferred Premiums (10 CFR 140.21)
BVY 03-016, Entergy Nuclear Northeast - Proof of Financial Protection (10 CFR 140.15) & Guarantee of Payment of Deferred Premiums (10 CFR 140.21) for Pilgrim Station, Indian Point Units 2 & 3, James A. Fitzpatrick Nuclear Power Plant & Vermont Yankee26 March 2003Entergy Nuclear Northeast - Proof of Financial Protection (10 CFR 140.15) & Guarantee of Payment of Deferred Premiums (10 CFR 140.21) for Pilgrim Station, Indian Point Units 2 & 3, James A. Fitzpatrick Nuclear Power Plant & Vermont Yankee S
BVY 03-026, Sources and Levels of Insurance Required by 10 CFR 50.54(w)28 March 2003Sources and Levels of Insurance Required by 10 CFR 50.54(w)
BVY 03-044, 2002 Annual Report, and Securities and Exchange Commission Form 10-K Submittal for All Entergy Nuclear Operations, Inc. Plants28 May 20032002 Annual Report, and Securities and Exchange Commission Form 10-K Submittal for All Entergy Nuclear Operations, Inc. Plants
BVY 03-069, Fitness-for-Duty Program Performance Report for Period January - June 200318 August 2003Fitness-for-Duty Program Performance Report for Period January - June 2003Fitness for Duty
Stolen
BVY 04-018, Fitness-for-Duty Program Performance Report for the Period of July - December 200323 February 2004Fitness-for-Duty Program Performance Report for the Period of July - December 2003Fitness for Duty
BVY 04-022, Response to RAI on Relief Requests to Use ASME Code Case N-6004 March 2004Response to RAI on Relief Requests to Use ASME Code Case N-600
BVY 04-027, Response to RAI on Relief Requests to Use ASME Code Case N-600, Supplement 118 March 2004Response to RAI on Relief Requests to Use ASME Code Case N-600, Supplement 1
BVY 04-028, Proof of Financial Protection (10CFR140.15) and Guarantee of Payment of Deferred Premiums (10CFR140.21)25 March 2004Proof of Financial Protection (10CFR140.15) and Guarantee of Payment of Deferred Premiums (10CFR140.21)