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 Issue dateTitleTopic
ML23277A0464 October 2023Revisions to the Sequoyah Nuclear Plant Units 1 and 2 Technical Specification Bases
ML22145A14116 May 2022Technical Specification Bases, ManualShutdown Margin
Ultimate heat sink
Water Inventory Control
Post Accident Monitoring
Hydrostatic
Abnormal operational transient
Surveillance Frequency Control Program
Scram Discharge Volume
Fuel cladding
CNL-21-091, Exigent License Amendment Request to Revise Technical Specification 3.4.12, Low Temperature Overpressure Protection System (SQN-TS-21-06)22 October 2021Exigent License Amendment Request to Revise Technical Specification 3.4.12, Low Temperature Overpressure Protection System (SQN-TS-21-06)Anticipated operational occurrence
Pressure and Temperature Limits Report
COVID-19
Fuel cladding
CNL-20-014, Application to Modify the Technical Specification to Allow for Transition to Westinghouse RFA-2 Fuel (SQN-TS-20-09)23 September 2020Application to Modify the Technical Specification to Allow for Transition to Westinghouse RFA-2 Fuel (SQN-TS-20-09)
CNL-19-072, Technical Specification Change - Reactor Vessel Level Instrumentation Inoperable - Exigent Amendment (SQN-TS-2019-03)14 July 2019Technical Specification Change - Reactor Vessel Level Instrumentation Inoperable - Exigent Amendment (SQN-TS-2019-03)
ML19151A58431 May 2019Revisions to the Sequoyah Nuclear Plant Units 1 and 2 Technical Specification BasesSafe Shutdown
Shutdown Margin
Surveillance Frequency Control Program
B.5.b Mitigating Strategies
Offsite Circuit
CNL-18-130, Revised Application to Modify the Technical Specifications for Unbalanced Voltage Relays19 November 2018Revised Application to Modify the Technical Specifications for Unbalanced Voltage RelaysSafe Shutdown
Anticipated operational occurrence
Surveillance Frequency Control Program
Offsite Circuit
ML17333A40129 November 2017Revisions to the Sequoyah Nuclear Plant Units 1 and 2 Technical Specification BasesHigh Radiation Area
Ultimate heat sink
Stroke time
Anticipated operational occurrence
Surveillance Frequency Control Program
Power change
CNL-16-011, Proposed Technical Specification Change to Extend the Allowed Completion Time to Restore Essential Raw Cooling Water System Train to Operable Status from 72 Hours to 7 Days (TS-SQN-16-01)11 March 2016Proposed Technical Specification Change to Extend the Allowed Completion Time to Restore Essential Raw Cooling Water System Train to Operable Status from 72 Hours to 7 Days (TS-SQN-16-01)Safe Shutdown
Boric Acid
Ultimate heat sink
Surveillance Frequency Control Program
Design basis earthquake
Earthquake
Fuel cladding
ML15176A68119 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 3 of 8Safe Shutdown
Ultimate heat sink
Anticipated operational occurrence
Probabilistic Risk Assessment
Incorporated by reference
Surveillance Frequency Control Program
Earthquake
Recently irradiated fuel
Offsite Circuit
NL-15-128, Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 1 of 819 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 1 of 8Shutdown Margin
Anticipated operational occurrence
Surveillance Frequency Control Program
Process Control Program
NL-15-128, Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 2 of 819 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 2 of 8High Radiation Area
Fire Barrier
Anticipated operational occurrence
Condition Adverse to Quality
Surveillance Frequency Control Program
Fuel cladding
Power change
NL-15-128, Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 3 of 819 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 3 of 8Safe Shutdown
Ultimate heat sink
Anticipated operational occurrence
Probabilistic Risk Assessment
Incorporated by reference
Surveillance Frequency Control Program
Earthquake
Recently irradiated fuel
Offsite Circuit
NL-15-128, Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 4 of 819 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 4 of 8Shutdown Margin
Reactor Vessel Water Level
Post Accident Monitoring
Missed surveillance
Surveillance Frequency Control Program
Recently irradiated fuel
NL-15-128, Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 5 of 819 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 5 of 8Shutdown Margin
Probabilistic Risk Assessment
Surveillance Frequency Control Program
Process Control Program
Control of Heavy Loads
Recently irradiated fuel
NL-15-128, Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 7 of 819 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 7 of 8Safe Shutdown
Unanalyzed Condition
Shutdown Margin
Anticipated operational occurrence
Probabilistic Risk Assessment
Qualified Offsite Circuit
Surveillance Frequency Control Program
Battery sizing
Recently irradiated fuel
Offsite Circuit
Power change
ML15176A66419 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 1 of 8Shutdown Margin
Anticipated operational occurrence
Surveillance Frequency Control Program
Process Control Program
ML15176A67919 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 2 of 8High Radiation Area
Fire Barrier
Anticipated operational occurrence
Condition Adverse to Quality
Surveillance Frequency Control Program
Fuel cladding
Power change
ML15176A74819 June 2015Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 8 of 8Safe Shutdown
Time of Discovery
Anticipated operational occurrence
Probabilistic Risk Assessment
Qualified Offsite Circuit
Surveillance Frequency Control Program
Recently irradiated fuel
Offsite Circuit
ML15176A74019 June 2015Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 7 of 8Safe Shutdown
Unanalyzed Condition
Shutdown Margin
Anticipated operational occurrence
Probabilistic Risk Assessment
Qualified Offsite Circuit
Surveillance Frequency Control Program
Battery sizing
Recently irradiated fuel
Offsite Circuit
Power change
ML15176A68219 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 4 of 8Shutdown Margin
Reactor Vessel Water Level
Post Accident Monitoring
Missed surveillance
Surveillance Frequency Control Program
Recently irradiated fuel
CNL-15-128, Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 5 of 819 June 2015Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 5 of 8Shutdown Margin
Mission time
Internal Flooding
Probabilistic Risk Assessment
Surveillance Frequency Control Program
Process Control Program
Large early release frequency
Control of Heavy Loads
ML15176A71819 June 2015Sequoyah Nuclear Plants, Units 1 and 2 Technical Specifications Conversion to NUREG-1431, Rev. 4.0 (SQN-TS-11-10) - Supplement 2. Part 6 of 8
CNL-14-176, Application to Revise Technical Specification 6.8.4.h, Containment Leakage Rate Testing Program, (SQN-TS-14-03)2 December 2014Application to Revise Technical Specification 6.8.4.h, Containment Leakage Rate Testing Program, (SQN-TS-14-03)Safe Shutdown
High winds
Mission time
Internal Flooding
Probabilistic Risk Assessment
Coatings
Large early release frequency
Moisture barrier
License Renewal
Earthquake
ML14342B0041 December 2014Cycle 19 - 180-Day Steam Generator Tube Inspection ReportNondestructive Examination
ML13193A0395 July 2013Revisions to the Technical Requirements Manual and Specification BasesSafe Shutdown
Boric Acid
Shutdown Margin
Ultimate heat sink
Fire Barrier
Anticipated operational occurrence
Nondestructive Examination
Incorporated by reference
Abnormal operational transient
Pressure and Temperature Limits Report
B.5.b Mitigating Strategies
Fuel cladding
Pressure Boundary Leakage
Offsite Circuit
ML11249A06131 August 2011Application for Temporary Change to TS to Allow Use of Penetrations in Shield Building Dome During Modes 1 Through 4;and Request for Specific Usage of Alternate Source Term Methodology for Calculating Radiation Doses Associated.Safe Shutdown
High winds
Shutdown Margin
Mission time
Fire Barrier
Tornado Missile
Internal Flooding
Probabilistic Risk Assessment
Large early release frequency
Earthquake
Offsite Circuit
Scaffolding
ML10147015824 May 2010Revisions to Technical Requirements Manual and Technical Specification BasesSafe Shutdown
High Radiation Area
Grab sample
Stroke time
Incorporated by reference
B.5.b Mitigating Strategies
Fuel cladding
Pressure Boundary Leakage
ML0833701211 December 2008Revisions to the Technical Requirements Manual (TRM) and Technical Specification (TS) Bases (Unit 1 Revisions 31, 32, and 33; Unit 2 Revisions 30, 31 and 32)
ML0710101532 April 2007Additional Information for Technical Specification Change 05-09 - Application for Technical Specification Improvement Regarding Steam Generator Tube Integrity and Deletion of License ConditionShutdown Margin
Offsite Dose Calculation Manual
Tornado Missile
Hydrostatic
Operating Basis Earthquake
Nondestructive Examination
Pressure and Temperature Limits Report
Annual Radioactive Effluent Release Report
Process Control Program
Earthquake
Pressure Boundary Leakage
ML07025003112 January 2007Technical Specification (TS) Change 06-06 - Revised Steam Generator (SG) Voltage-Based Repair Criteria - Probability of Prior Cycle Detection (Popcd)Nondestructive Examination
ML0634700297 December 2006Technical Specifications (TS) Change 06-03 Ultimate Heat Sink (UHS) Temperature Increase and Elevation Changes Supplemental InformationSafe Shutdown
Boric Acid
Ultimate heat sink
Coatings
Biofouling
ML06214010212 July 2006Technical Specifications (TS) Change 06-03 Ultimate Heat Sink (UHS) Temperature Increase and Elevation ChangesSafe Shutdown
Shutdown Margin
Ultimate heat sink
Anticipated operational occurrence
Safe Shutdown Earthquake
Earthquake
ML05131028027 April 2005Technical Specifications Change 04-06 - Relocation of Specifications in Accordance with Part 50.36 in Title 10 of the Code of Federal Regulations.Shutdown Margin
Ultimate heat sink
Fire Barrier
Probabilistic Risk Assessment
Power change
ML04286005430 September 2004Units 1 and 2 - Technical Specification Change No. 04-01 - New Specification for Loss of Power Instrumentation for Emergency Diesel Generator and Auxiliary Feedwater Actuation.
ML04238049812 August 2004Technical Specifications Change 03-11 Deletion of Vacuum Relief Flow Requirements from Auxiliary Building Gas Treatment System Surveillance Requirements
L-87-009, Revisions to the Technical Requirements Manual (TRM) (Revisions 21, 22, 23, 24, 25, 26, and 27) and Technical Specification (TS) Bases (Unit 1 Revisions 22, 23, and 24; Unit 2 Revisions 22 and 23)5 May 2004Revisions to the Technical Requirements Manual (TRM) (Revisions 21, 22, 23, 24, 25, 26, and 27) and Technical Specification (TS) Bases (Unit 1 Revisions 22, 23, and 24; Unit 2 Revisions 22 and 23)Boric Acid
Time of Discovery
Shutdown Margin
High Radiation Area
Missed surveillance
Maintenance Rule Program
Pressure Boundary Leakage
ML0407608865 March 2004Technical Specifications (TS) Change 03-05, Physics Tests Exceptions and Refueling Operations.Shutdown Margin
Fuel cladding
Recently irradiated fuel
Power change
ML03304040622 October 2003Technical Specification (TS) Change 03-12, Application for TS Improvement to Extend the Completion Time for Action a of TS 3/4.5.1, 'Accumulator,' Using the Consolidated Line Item Improvement Process (Cliip).Incorporated by reference
ML0316108595 June 2003TS Change No.03-08, Reactor Coolant System Heatup & Cooldown CurvesAnticipated operational occurrence
Hydrostatic
Power change
ML03149035519 May 2003Revised Information Regarding TS Change 02-07, One Time Frequency Extension for Type a Test Containment Integrated Leak Rate Test
ML0313507619 May 2003Tech Spec Change 01-09, Operations Involving Positive Reactivity Additions.Shutdown Margin
ML03079028113 March 2003TS Change 03-01, Revision of Boron Requirements for Cold Leg Accumulators & Refueling Water Storage TanksBoric Acid
Shutdown Margin
ML03034011929 January 2003Application for Technical Specification (TS) Change - Missed Surveillances Using the Consolidated Line Item Improvement Process (Revision 2)Time of Discovery
Missed surveillance
Liquid penetrant
Grace period
ML0229404774 October 2002Seqouyah Units 1 & 2 Technical Specification (TS) Change No. 02-07, One-Time Frequency Extension for Type a Test (Containment Integrated Leak Rate Test (Cilrt).Non-Destructive Examination
Probabilistic Risk Assessment
Coatings
Large early release frequency
Moisture barrier
ML0215504378 May 2002Unit 2 - Supplemental Information to Support Emergency Technical Specification (TS) Change 02-05, Steam Generator (SG) Inspecton Scope - TAC MB4994Operating Basis Earthquake