L-17-042, Request for Licensing Action to Revise the Technical Specifications
LR-N16-0003, License Amendment Request to Amend the Accident Monitoring Instrumentation Technical Specifications
RS-16-228, License Amendment Request - Proposed Defueled Technical Specifications and Revised License Conditions for Permanently Defueled Condition
CNL-16-165, Proposed Technical Specifications (TS) Change TS-505 - Request for License Amendments - Extended Power Uprate (EPU) - Supplement 34, Revised Proposed License Conditions and Technical Specification Change
LR-N17-0188, Response to Integrated Inspection Report 05000272/2017003 and 05000311/2017003
L-2018-006, Third Response to Request for Additional Information Regarding License Amendment Request to Adopt Risk Informed Completion Times TSTF-505, Revision 1, Provide Risk-Risk Informed Extended Completion Times - RITSTF Initiative 4b
B18763, License Basis Document Change Request (LBDCR) 2-18-02 Selective Implementation of the Alternative Source Term - Fuel Handling Accident Analyses
NLS2014087, License Amendment Request to Revise Technical Specifications to Add Residual Heat Removal System Containment Spray Function
2CAN071201, License Amendment Request - Supplemental Technical Specification (TS) Change Related to Revised Fuel Assembly Drop Analysis and Adoption of TSTF-51, TSTF-272, TSTF-286, and TSTF-471
2CAN041201, License Amendment Request, Technical Specification (TS) Change Related to Revised Fuel Assembly Drop Analysis and Adoption of TSTF-51, TSTF-272, TSTF-286, and TSTF-471
BSEP 08-0156, Request for License Amendment - Adoption of TSTF-478, Revision 2 - BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control
NLS2008001, License Application Amendment Request for Technical Specification Change Regarding Mode Change Limitations Using the Consolidated Line Item Improvement Process and Related
TSTF-08-05, TSTF-506, Revision 0, Revise Primary Containment and Drywell Hydrogen Igniter Specification to Not Require Recombiners
RBG-46606, Application for Technical Specifications (TS) Change Regarding Mode Change Limitations (TSTF-359) Using the Consolidated Line Item Improvement Process (Cliip), and Correct Example 1.4-1 (TSTF-485)
NG-07-0470, Partial Withdrawal of Proposed Technical Specification Change Request (TSCR-083)
LR-N07-0032, Response to RAIs on LCR S06-06 Request for Change to Technical Specifications Containment Ventilation System Containment Isolation Valves
GNRO-2007/00009, License Amendment Request, Application for Technical Specifications (TS) Change Regarding Mode Change Limitations (TSTF-359) Using the Consolidated Line Item Improvement Process (Cliip), and Correct Example 1.4-1 (TSTF-485)
LR-N06-0233, Request for Change to Technical Specifications Containment Ventilation System, Containment Isolation Valves
2CAN020601, License Amendment Request to Modify Technical Specification Surveillance Requirement 4.6.1.1.a
05000302/LER-1979-107-03, /03L-0:on 791120,following Routine Pressurizer Sampling,Chemical Addition Isolation Valve Would Not Close. Caused by Inadequate Design.Installed Mod 79-11-81 Providing Pneumatic Assist During Valve Closing
JAFP-05-0084, Application for Technical Specifications (TS) Change Regarding Mode Change Limitations (TSTF-359) Using the Consolidated Line Item Improvement Process (CLIIP)
GO2-04-161, License Amendment Request Adoption of TS Task Force Traveler - 447, Revision 1, Elimination of Hydrogen Recombiners and Change to Hydrogen and Oxygen Monitors
RBG-46233, Application for Technical Specification Improvement to Eliminate Requirements for Hydrogen Recombiners and Hydrogen Monitors Using the Consolidated Line Item Improvement Process, LAR 2004-04
GO2-03-167, Revision to Technical Specification LCO 3.0.4 and SR 3.0.4 Regarding Mode Change Limitations Using the Consolidated Line Item Improvement Process (CLIIP)
NRC-03-0082, Application for Technical Specification Improvement to Eliminate Requirements for Hydrogen Recombiners and Hydrogen/Oxygen Monitors Using the Consolidated Line Item Improvement Process
L-03-146, License Amendment Request Nos. 315 and 188
L-03-135, Withdrawal of the Containment Conversion Portion (Phase 2) of License Amendment Request Nos. 300 and 172
RS-20-031, License Amendment Request - Application to Adopt Technical Specification Task Force (TSTF) Traveler TSTF-568, Revision 2, Revise Applicability of BWR/4 TS 3.6.2 .5 and TS 3.6 .3.2, Using the Consolidated Line Item Improvement Process
JAFP-20-0046, License Amendment Request for Adoption of TSTF-478-A, Revision 2, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control, Using the Consolidated Line Item.
3F0487-21, Revised Response to Violations Noted in Insp Rept 50-302/86-38.Corrective actions:SP-421 Revised Adding Detail to Prevent Similar Mistakes in Future & LER Reporting Containment Leakage Event Issued on 870129
NRC-99-0044, Forwards Rev 5 to ITS to Provide Responses to RAI Re ITS Section 3.6 (Except ITS Section 3.6.1.3) Contained in & Update in ITS Submittal to Reflect Responses
B17704, Informs NRC of Util Intention to Continue to Maintain Hps as Maint Rule Risk Significant Sys Even After NRC Approval of Licensee 990118 Proposed LAR Re Deletion of TS Re Hps
B17590, Application for Amend to License DPR-65,removing TS 3/4.6.4.3, Containment Systems,Hydrogen Purge Sys, from Plant TS
RA88-001, Forwards Comments on 880112 Senior Reactor & Reactor Operator Exams.Question 1.12 Will Be Deleted from Exam & Answer Key for Questions 1.17 & 6.03 Will Be Revised
B16471, Proposed Tech Specs Modifying Definition 1.8 Re Containment Integrity
AECM-88-0218, Submits Addl Info Re 880819 Application for Amend to License NPF-29,per NRC 881006 Request.Proposed Administrative Changes to Fire Protection Specs Per Generic Ltr 87-09, Included in Amend Request
RBG-22-457, Forwards Composite List of Requested Tech Spec Changes for Full Power Ol,Discussions,Justification & Proposed Markup for Each Change.No Change to License NPF-40 Requested
L-85-223, Responds to Violations Noted in Insp Repts 50-335/85-07 & 50-389/85-07.Corrective Actions:Procedures Revised to Provide Specific Instruction Re Placing & Removing Jumper Associated W/Containment Isolation Valves
AECM-84-0229, Forwards Program Completion Rept Re Conclusion of Tech Spec Review Program.Rept Documents That Thorough & in-depth Engineering,Operations & Licensing Review of Tech Specs Conducted Per Programmatic Commitments
2CAN059101, Application for Amend to License NPF-6,revising Tech Specs Re Containment Isolation Valve Requirements,Per Generic Ltr 87-09
CNL-22-089, License Amendment Request for Adoption of TSTF-478, Revision 2, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control (BFN TS-546)
2CAN049101, Provides follow-up to 910403 & 04 Verbal Discussions Re Temporary Waiver of Compliance from Limiting Condition for Operation 3.0.4 for Containment Purge Isolation Valves Until Tech Specs Can Be Developed & Processed
PY-CEI-NRR-1537, Application for Amend to License NPF-58,revising Tech Spec 3.6.3.4, Suppression Pool Makeup Sys, Providing Water from Upper Containment Pool to Suppression Pool by Gravity Flow Through Two 100% Capacity Dump Lines Following LOCA
2CAN010506, Arkansas, Unit 2 - License Amendment Request One-Time Technical Specification Change for Penetration Overcurrent Protection Devices
RS-04-141, Amergen Request for Amendment to Technical Specifications to Eliminate Requirements for Hydrogen Recombiners and Hydrogen/Oxygen Monitors Using the Consolidated Line Item Improvement Process
JAFP-20-0012, License Amendment Request - Application to Adopt Technical Specification Task Force Traveler TSTF-568, Revision 2, Revise Applicability of BWR/4 TS 3.6.2.5 and TS 3.6.3.2, Using the Consolidated Line.
2CAN109101, Application for Amend to License NPF-6,deleting Two Containment Isolation Valves from TS Table 3.6-1,per NRC Info Notice 88-073 Re direction-dependent Leak Characteristics of Containment Purge Valves
NLS2002122, 10CFR50.59(d)(2) Summary Report
NL-22-0283, Supplement to License Amendment Request to Revise Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - Ritstf.
NL-16-165, Browns Ferry Nuclear Plant, Units 1, 2, & 3 - Proposed Technical Specifications (TS) Change TS-505 - Request for License Amendments - Extended Power Uprate (EPU) - Supplement 34, Revised Proposed License Conditions and Technical Specificat
05000311/LER-1989-012-01, :on 890527,procedure Which Tests Response Time for Closure of Feedwater Regulating Control Valves Found Inadequate.Caused by Inadequate Procedure.Surveillance Procedure Revised to Clarify Response Time
05000336/LER-1989-006, :on 890510,operator Attention Drawn to Trouble Rept Associated W/Valve 1-EB-91.Also on 890516,determined That Unit Operated Outside Tech Specs 3.6.3.1 Requirements. Caused by Personnel Error.Operators Instructed
05000498/LER-1987-012, :on 871102,high Head Safety Injection Sys Cold Leg Injection Valves Closed.Caused by Inadequate Training & Personnel Error.Mgt Reemphasized Proper Use of Procedures, Annunciators & Attention to Details
05000346/LER-1986-026, :on 860703,results of Maint & Testing Identified Tubing in Atmospheric Vent Valves Too Restrictive to Achieve Required Closing Time.Tubing Between Air Cylinder & Vol Tank Redesigned
CNL-16-100, Proposed Technical Specifications (TS) Change TS-505, Request for License Amendments, Extended Power Uprate - Supplement 21, Response to Requests for Additional Information
05000316/LER-1986-030, :on 861112-13,unit Operated W/One air-operated Containment Isolation Valve Inservice W/O Having Closing Time Determined After Packing Adjustment.Caused by Personnel Error.Leak Test Procedure Will Be Revised
05000302/LER-1988-017, :on 880913,failure to Perform post-maint Test Occurred.Caused by Lack of Understanding of Design Function of Valves.Testing of FWV-43 & FWV-44 Will Be Conducted During Oct 1988 Outage
05000339/LER-1988-019, :on 880407,surveillance Test for Steam Generator Surface Sample Line Outside Containment Isolation Valve Not Performed within Interval Allowed by Tech Specs. Caused by Personnel Error.Program Modified
05000338/LER-1988-012, :on 880315,RHR Capability Lost Due to Failed solenoid-operated Valve.Caused by Failure of Containment Valve 1-CC-TV-103B to Stroke Close within the Required Time Limit.Valve Refurbished and Stroked
05000335/LER-1985-002, :on 850228,inboard Valves of Containment Isolation Valves Found Inoperable.Caused by Mechanical Connector Problem.Procedures Revised
05000334/LER-1996-011, :on 960820,failed to Provide Administrative Control of Isolation Valves Required by Ts.Caused by Station Operating Procedures for Plant Startup Not Emphasizing TS Requirements for Valves.Revised Surveillance
05000335/LER-1985-002-01, :on 850228,inboard Valve of Series Set of Containment Isolation Valves Found Inoperable in Open Position.Caused by Incorrect Connection to Backup Nitrogen Sys Due to Mechanical Connector Problem
05000412/LER-1996-002-01, :on 960220,containment Penetration Not Isolated within Time Limit.Caused by Breakdown in Administrative Controls Governing Document Updates During Initial Plant Const in 1985.Manual Isolation Valves Shut
05000272/LER-1984-026, :on 841107,Tech Spec Action Statement Not Followed Verbatim After Seat Leakage on Main Steam Stop Valve Bypass Valve 11MS18 Resulted in Rupture of West Low Pressure Turbine Rupture Disk 12
05000346/LER-1985-004, :on 850220,containment Isolation Valve RC229A Closing Stroke Time Exceeded Tech Spec Limits.Caused by Personnel Error & Human Factor Inadequacies Re Procedure Format.Valve Repaired & Successfully Retested
05000272/LER-1984-022-01, :on 841018 & 19,Mode 4 Operation Entered W/Containment Isolation Valves 1CV68 & 1CV69 Inoperable. Caused by Personnel Error.Type C Leak Rate Test Procedural Change Implemented
05000338/LER-1992-009, :on 920402,surveillance on Containment Purge & Exhaust Isolation Sys Missed & PORV Alarm Actuated Due to Personnel Error During Procedure Development.Addl Review of Other Complex Instrumentation Being Performed
05000316/LER-1984-021, :on 840807,discovered That Asterisks Allowing Operation of Upper Containment Grab Sample Valves Sm-8 & 10 Absent from Tech Specs.Caused by Inadequate Verification of Tech Specs.Change Requested
05000334/LER-1995-009, :on 951107,ASME Valves Not Tested within TS Surveillance Interval.Caused by Scheduling of Ost Based on Completion Date of Previous Performance.Scheduled Performances Based on Start & Completion
05000328/LER-1982-142-03, /03L-0:on 821229,while Running Surveillance Instruction 166.1 for Containment Isolation Valves,Valves 2-FCV-68-305 Failed to Open.Caused by Faulty Diaphragm. Diaphragm Replaced
05000315/LER-1983-112-03, /03L-0:on 831103,steam Generator 2 Blowdown Isolation Valve DCR-320 Indication Remained in mid-position. Caused by Sheared Steam Coupling Bolt.Bolt Replaced
05000346/LER-1983-064-03, /03L-0:on 831111,main Steam Line Atmospheric Vent Valve FV-ICS-11A Could Be Opened W/Safety Features Actuation Signal/Sfrcs Trip Simulated.Caused by Defective Solenoid Valves SV-ICS-11A1 & 2.Valves Rebuilt
05000346/LER-1994-004, :on 941014,discovered That Containment Hydrogen Purge Inlet Screen Not Installed.Suspect Screen Installed During Plant Const But Removed During Maint & Not Replaced. Screen Replaced During Ninth Refueling Outage
05000244/LER-1983-022-03, /03L-0:on 830725,while Performing Procedure S-16.2 Nitrogen Makeup to Accumulators,Containment Isolation Valve AOV-846 for Nitrogen Supply to Containment Seized in Mid Position.Caused by Galling Plug
05000328/LER-1983-086-03, /03L-0:on 830610,w/RCS Temp at 558 F & Pressure at 2,215 Psig,Steam Generator Blowdown Containment Isolation Valve 2-FCV-1-32 Failed Closed.Caused by High Temp Environ. Higher Temp Resistant Diaphragm Installed
05000316/LER-1983-024-03, /03L-0:on 830203,during Normal Operation,Control Air to Containment Isolation Valve (XCR-100) Closed & Deactivated to Permit Troubleshooting on Possible Ground. Caused by Faulty Cable.New Cable Installed
05000302/LER-1983-004-03, /03L-0:on 830120,containment Isolation Valve CAV-6 Determined Inoperable.Containment Penetration Isolated & CAV-6 Deactivated.Caused by Weak Valve Operator Spring. Spring Will Be Replaced During Next Outage
3F0891-07, Application for Amend to License DPR-72,consisting of Tech Spec Change Request 190,Rev 0,adding New Action to Crp Unit 3 Containment Air Lock Specification
05000346/LER-1983-003-03, /03L-0:on 830119,MSIV MS100 Failed to Shut Completely Following Reactor Trip on 830118.Cause Unknown. Valves Disassembled & Inspected W/No Problems Found.Valve Tested & Returned to Svc
05000334/LER-1994-006-01, :on 940623,identified That Containment Isolation Valve Had Exceeded Its Limiting Stroke Time.Caused by Personnel Error.Involved Personnel Were Counseled.W/
05000302/LER-1982-065-03, /03L-0:on 821017,containment Isolation Valve DHV-4 Could Not Be Operated from Control Room.Caused by Stuck Mechanical Interlock.Interlock Cleaned & Lubricated
05000335/LER-1983-002-03, /03L-0:on 830106,pressurizer Surge Line Sample Containment Isolation Valve Failed to Close Upon Signal from Remote Switch.Caused by Mechanical Freeze Due to Corrosion Buildup Between Bonnet & Stem.Valve Repaired
05000334/LER-1982-055-03, /03L-0:on 821130,Operations Surveillance Test 1.47.3A Not Performed within 25% Max Allowable Extension & ASME Oct & Nov Monthly Valve Restroking Not Conducted.Caused by Human Error.Present Scheduler Trained
05000244/LER-1982-019-03, /03L-0:on 820901,while Performing PT-2.9, Containment Particulate/Gas Radiation Monitor R11/12 Return Line Isolation Check Valve CV-1599 Found Leaking Excessively.Caused by Graphite in Valve & Valve Disc Wear
05000327/LER-1982-066-03, /03L-0:on 820526 & 0603,steam Generator Blowdown Containment Isolation Valves 1-FCV-1-14 & 1-FCV-1-25 Failed to Close & Would Not Reopen.Caused by Ruptured Valve Operator Diaphragms.Diaphragms Replaced
05000328/LER-1982-069-03, /03L-0:on 820529,2-FVC-43-2 & 2-FCV-43-11 Pressurizer Sampling Containment Isolation Valves Failed to Stroke.Caused by Low Setting of Valve Operator Air Supply Regulators.Regulators Adjusted & Valves Lubricated
05000335/LER-1982-027-03, /03L-0:on 820715,dc Ground Isolated on Solenoid Valve V6554.Caused by Valve Failing to Properly Indicate Position Due to Shorted Terminal Lugs on Terminal Board of Valve.Lugs Reconnected & Valves Returned to Svc
05000315/LER-1982-050-03, /03L-0:on 820707,containment Isolation Valve ECR-32 for Containment Air Participation Detector Failed to Close from Control Room Switch.Caused by Defective Solenoid Valve Mfg by Asco.Valve Repaired
05000302/LER-1978-044-03, /03L-0:on 780907,during Performance of SP-417, Closed Position Indication Not Received After CFV-15,core Flood B Vent to Gas Decay Sys,Was Given Command to Close. Caused by Faulty Torque Switch.Torque Switch Renewed
05000412/LER-1993-016, :on 931209,inadvertent Deactivation of Signal from Two Containment Isolation Valves Occurred.Caused by Personnel Error.Temporary Mod 2-94-001 Implemented on 931210,restoring Power to Auxiliary Relays
05000346/LER-1993-007, :on 931020,after Preventive Maint,Determined Train of AFW & Motor Driven Feedwater Pump Incapable of Feeding SG 1 Should SG 2 Fail.Caused by Misunderstanding of AFW Sys.C/A:Review Chapter 15 of USAR
05000302/LER-1982-023-03, /03L-0:on 820320,mainsteam Valve MSV-130, Discovered Leaking on High Pressure Side.Caused by Seal Ring Failure.Valve Removed,Cleaned & Ring Replaced
05000302/LER-1982-021-03, /03L-0:on 820219,while Using SP-221 (Startup Feedwater Valve Air Accumulator Leak Test) for Maint Trouble Identification,Feedwater Valve (FWV-39) Failed to Meet Surveillance Criteria.Cause Undetermined
05000315/LER-1982-025-03, /03L-0:on 820416,containment Isolation Valve ECR-32 for Containment Air Particulate Detector Would Not Close During Sampling.Loose Bonnet Screws Caused Solenoid Vent to Become Blocked.Mounting Screws Tightened
05000327/LER-1982-029-03, /03L-0:on 820215,w/unit in Mode 3,glycol Containment Isolation Valve 1-FCV-61-194 Would Not Reopen When Stroked from Full Open Position.Caused by Conductor G1B1 Not Being Terminated.Conductor Reterminated
05000362/LER-1993-003, :on 930527,discovered Three Containment Isolation Valves w/motor-operator Switch Setttings Nonconservative,Per GL 89-10.Caused by Using Outdated Configuration.Valves Secured
PY-CEI-NRR-1663, Suppl to 920624 Application for Amend to License NPF-58, Increasing Max Average Suppression Pool Water Temp & Containment Average Air Temp Limits from 90 F to 95 F to Permit Continued Plant Operation
05000328/LER-1982-009-03, /03L-0:on 820111,in Mode 1 at 8% Rtp,Steam Generator Blowdown Containment Isolation valve,2-FCV-1-7, Operator Diaphragm Ruptured Rendering Valve Inoperable. Caused by Normal Wear.Diaphragm Replaced
05000328/LER-1981-153-03, /03L-0:on 811229,flow Control Containment Isolation Valve in Primary Water Makeup Sys Declared Inoperable Due to Failure to Meet Stroke Time Requirements. Caused by Tight Valve Packing.Valve Stem Lubricated
05000302/LER-1981-082-03, /03L-0:on 821221,discovered Containment Isolation Valve CFV-27 Inoperative.On 811223 Five Other Valves Were Inoperative.Caused by Failure of Control Relays.Relay Coils & Plungers Replaced
05000344/LER-1981-031, Forwards LER 81-031/03L-0.Detailed Event Analysis Encl
05000302/LER-1981-080-03, /03L-0:on 811221,after Packing Adjustments Were Made to MSV-130 to Stop Excessive Packing Leakage Under Work Request 29981,valve Would Not Operate,Creating Event Contrary to Tech Spec.Caused by Excessive Packing Adjustment
05000344/LER-1981-029-03, /03L-0:on 811202,containment Hydrogen Vent Sys Supply Valves Found Not Limited in Travel Per 800101 Commitment to Nrc.Caused by Valves Not Being Used During Modes 1-4.Valves Tagged Shut Until Adjustment Is Made
05000344/LER-1981-029, Forwards LER 81-029/03L-0.Detailed Event Analysis Encl
2CAN039015, Requests Temporary Waiver of Compliance from Tech Spec Limiting Condition for Operation Section 3.6.3.1, Containment Isolation Valves, Action B,To Enable Util to Bleed & Feed Tank Contents to Maintain Acceptable Temp
05000327/LER-1981-113-03, /03L-0:on 810828,while in Mode 1,containment Isolation & Ice Bed Sys Declared Inoperable Due to Wiring Short in Ice Condenser Isolation Valve 1FCV-61-194.Caused by Saturation of Junction Box W/Liquid Glycol
05000346/LER-1978-024-03, /03L-1:on 780228,MSIV MS-101 Rendered Inoperable to Allow Maint Personnel to Remove Raised Metal on Two of Four Spring Guide Tubes.Cause of Raised Metal Unknown.Metal Filed Down,Valve Closing Time Adjusted & Valve Tested
05000344/LER-1981-015, Forwards LER 81-015/03L-0.Detailed Event Analysis Encl
05000327/LER-1981-070-03, /03L-0:on 810619,containment Bldg Lower Compartment Air Monitor Valve Failed to Close on Signal. Caused by Loose Screw in Handswitch,Allowing Open Contact to Short Across,Preventing Solenoid Valve from de-energizing
05000346/LER-1981-010-03, /03L-0:on 810202,MSIV Bypass Valve Ms 100 a Failed to Close.Probably Caused by Component Failure.Actuator Spring Adjusted to Increase Tension Until Valve Would Close
05000311/LER-1989-035, :on 891210,valve 1SA118 Found Untagged in Open Position During Routine Mode 3 Operations.Caused by Personnel Error.Individuals Involved Held Accountable
05000346/LER-1981-020-03, /03L-0:on 810324,valve CV5011A,on Containment Air Sample Inlet Line to Hydrogen Analyzer,Would Not Stroke Closed W/Monitor Operator.Caused by Badly Worn Tripper in Motor Operator.Tripper Levers Replaced
05000302/LER-1981-002-03, /03L-0:on 810109,containment Isolation Valve CAV-1 Failed to Close After Sampling Pressurizer Steam Space. Caused by Failed Contacts in Torque Switch of Valve Operator.Switch Replaced & Operability Restored
05000302/LER-1980-053-03, /03L-0:on 801208 & 09,containment Isolation Valve CAV-3 Would Not Close After Sampling Pressurizer Water Space.Caused by Inadequate Closing Torque & Faulty Torque Switch.Valve Stem Lubricated.Torque Switch Replaced
05000302/LER-1981-017, Forwards LER 81-017/03L-0.Detailed Event Analysis Encl
05000302/LER-1981-003-01, /01T-0:on 810129,containment Isolation Valves AHV-1C & AHV-1D Found Inoperable Contrary to Tech Spec 3.6.3.1.Caused by Failure of Valve to Seal at Low Ambient Temp During Purge Conditions
05000302/LER-1980-048-03, /03L-0:on 801116 & 18,containment Isolation Valve CAV-3 Did Not Close While Sampling Pressurizer Water Space. Caused by Inadequate Closing Torque.Valve Closed,Deactivated & Maint Performed
05000346/LER-1980-082-03, /03L-0:on 801111 & 1203,control Room Operator Noticed Simultaneous Open & Closed Indication for Main Steam Isolation Warmup Valve MS100-1.Caused by Mechanical Binding of Valve.Stem Cleaned,Lubricated & Packing Loosened
05000346/LER-1980-014-03, /03L-0:on 800208,pressurizer Sample Sys Containment Isolation Valve RC240B Failed to Close Twice. Caused by Improper Torque Switch Setting & Stripped Screw on Closing Contactor.Settings Readjusted & Switch Replaced
05000302/LER-1980-049-03, /03L-0:on 801119,containment Isolation Valve CFV-12 Would Not Close After Bubbling Nitrogen to CFT-1B. Caused by Broken Can in Torque Switch.New Switch Installed & Adjusted
05000346/LER-1980-093-03, /03L-0:on 801219,demineralized Water Containment Isolation Valve DW6831B Did Not Close in Required Time. Caused by Dump Solenoid Orifice Too Small to Allow Adequate Bleedoff Flow.Solenoid to Be Replaced
05000346/LER-1980-087-03, /03L-0:on 801206,while Troubleshooting,Control Room Operator Could Not Stroke Valve CV5006.Valve Declared Inoperable.Cause Unknown.Corrective Action Will Be Conducted Under Maint Work Order IC-814-80 During Next Outage
05000302/LER-1980-045-01, /01T-0:on 801028,purge Isolation Valves AHV-1A & 1B Were Inoperable.Caused by Radiation Monitor RM-A1 Not Representatively Sampling Reactor Bldg Atmosphere Due to Maint Actions Involving Detector Removal/Replacement
05000302/LER-1980-041-03, /03L-0:on 801002,during Normal Operation,Reactor Coolant Tank Isolation Valve WDV-94 Would Not Close Due to Inadequate Torque Switch Setting.Setting Adjusted to Higher Value
05000327/LER-1983-053-03, /03L-0:on 830331,during Review of Maint Requests, Discovered That on 830319 Steam Generator Blowdown Isolation Valve 1-FC-1-14 Would Not Stay Open & Surveillance Instruction SI-166.6 post-maint Stroke Test Not Performed
05000302/LER-1980-033-03, /03L-0:on 800803,following Routine Sampling of Core Flood Tank A,Sample Isolation Valve CFV-11 Failed to Close.Caused by Failed Contact Rotor in Limitorque Operator. Contact Rotor 2 Replaced & Declared Operable
05000346/LER-1978-074-03, /03L-0:on 780625,containment Isolation Valves CC 1407B & CC 1411B Failed to Operate When Automatically Actuated.Caused by Broken Wires,Probably Due to Strain Caused During Outage.Wires Repaired & Scheme Tested
05000346/LER-1978-080-03, /03L-0:on 780718,breakers to Feedwater Stop Valves Found Open.Caused by Personnel Failing to Restore Valves to Operable Position After Test.Power Restored by Closing Circuit Breakers.Personnel Formally Reprimanded
05000346/LER-1980-022-03, /03L-0:on 800317,operations Personnel Noticed Loss of Control Room Indication for Containment Dihydrogen Analyzer 2 Discharge Line Valve CV5010E.Caused by Const Personnel Accidentally Opening Breaker
05000346/LER-1978-065-03, /03L-0:on 780607,six Containment Isolation Check Valves Found Inoperable During Local Leak Rate Test.Caused by Improper Seating of Valves Due to Dirt or Wear.Discs & Seats Cleaned,Valves Lapped & Valves Retested
05000366/LER-1980-081-03, /03L-0:on 800521,w/reactor Near Rated Power,Loca Signal Accidentally Initiated Resulting in Reactor Scram. Outboard MSIV Failed to Auto Close.Caused by Faulty O-ring in Valve Air Operating Solenoid
05000302/LER-1978-014-03, /03L-0:on 780210,chemical Addition Valves CAV 1 & 2 Failed to Close on Completion of Pressurizer Steam Space Sampling.Caused by Incorrect Torque Switch Setting of Valve CAV-1.Operability restored.CAV-2 Corrective Action Pend
05000302/LER-1978-006-03, /03L-0:on 780111,HPI Isolation Valve MUV-25 Breaker Inadvertantly Opened & Red Tagged Out of Svc During Normal Mode 1 Operations.Clearance Procedure Reviewed W/Personnel
05000302/LER-1980-021-03, /03L-0:on 800506,during Insp of Feedwater swing- Disc Check Valve FWV-45,valve Hinge Pin Was Discovered Missing.Caused by Deficiency During Initial Assembly of Valve by Manufacturer.Valve Is Being Repaired
05000302/LER-1980-017-03, /03L-0:on 800405,during Repair of B once-through Steam Generator Feedwater swing-disc Check Valve FWV-46, Discovered Valve Disc Retainer Pin Missing.Caused by Deficiency Occurring During Initial Manufacturer Assembly
05000302/LER-1977-159-03, /03L-0:on 771228,reactor Bldg Purge Exhaust Valve AHV-1B Did Not Auto Close Upon Reactor Bldg Purge Initiation.Caused by Purge Exhaust Valve AHV-1B Not Being Open Enough to Activate Automatic Closure Matrix
05000346/LER-1980-020-03, /03L-0:on 800306,control Operator Noted No Control Room Indication for Containment Vacuum Relief Isolation Valve CV5072.Caused by Breaker BE1139 Being Closed,Probably Resulting from Someone Bumping Into Breaker
05000346/LER-1980-012-03, /03L-0:on 800201,operator Noticed Loss of Control Room Position Indication for Letdown Cooler Isolation Valve MU2A.Caused by Design Deficiency.Apparently,Someone Brushed Up Against Disconnect Breaker Switch.Switch Reposition
05000302/LER-1979-071-03, /03L-0 on 790801:in Mode 1,reactor Bldg Isolation Valves CAV-4 & CAV-6 Would Not Close from Control Room After Securing from Continuous Blowdown.Caused by Valves Being Stuck & Underlubricated.Valves Freed & Lubricated
05000302/LER-1979-105-03, /03L-0:on 791101,during Sampling of Rcs,Chemical Addition Isolation Valve CAV-2 Would Not Close.Cause Unknown.Valve Body of CAV-2 Lubricated,Satisfactorily Tested & Returned to Svc on 791102
05000302/LER-1980-003-03, /03L-0:on 800104,following Pressurizer Degassification Operations,Pressurizer Steam Space Sample Isolation Valve CAV-1 Would Not Close.Cause Unknown.Threads on Valve Stem Assembly Found Stripped.Evaluation Scheduled
05000346/LER-1980-002-03, /03L-0:on 800103,after Actuating of Safety Features Actuation Sys Level 2,demin Water Valve DW68318 Did Not Indicate Closed & Monitor Light Did Not Indicate Properly.Caused by Maladjusted Position Indicator Switch
05000302/LER-1979-080-03, /03L-0:on 790818,Nuclear Svcs Closed Cycle Cooling Containment Isolation Valve SWV-79 Could Not Be Closed by Remote Actuation in Mode 4 During Plant Cooldown.Caused by Loose Electrical Wire Connector at Remote Selector Switc
05000302/LER-1979-102-03, /03L-0:on 791023,core Flood Tank B Sample Isolation Valve CFV-12 Would Not Close.Cause Unknown.Valve Presently Maintained in Closed Position Until Repairs Can Be Completed
05000333/LER-2019-001, Secondary Containment Differential Pressure Exceeded the Technical Specification Surveillance Requirement
05000272/LER-2077-031-01, Inoperability of Valves Due to Excessive Closure Time
05000272/LER-1989-035, :on 891210,containment Compressed Air Supply Valve Found Untagged in Open Position During Mode Changes. Caused by Personnel Error.Procedure IOP-2 Revised to Include Step to Verify Valve 1SA118 Closed
RS-18-022, Response to NRC Request for Additional Information for Request for License Amendment to Revise Technical Specification 5.5.12, Primary Containment Leakage Rate Testing Program
05000316/LER-1991-008-01, :on 911105,containment Pressure Relief Valves Opened W/Radiation Monitoring Switches in Block Position. Caused by Personnel Error.Ltrs Issued to All Reactor Operators Stressing Responsibility
05000315/LER-1989-005-01, :on 890330,during Surveillance Testing, Containment Isolation Valve Would Not Close Per Tech Spec 3.6.3.1.Probably Caused by Flaw in Gear Tooth.Valve Operator Repaired by Replacing Defective Components
05000412/LER-1990-006, :on 900605,containment Isolation Valves Exceeded Stroke Time Limit,Per Tech Spec 3.6.3.1.Caused by Deficient Surveillance Program.Surveillance Procedures Revised to Include Stroke Time Requirements
05000244/LER-1994-002, :on 940202,containment Pressure Channels P-947 & P-948 Were Inoperable.Caused by Water Being Trapped in Low Point of Line.Corrective Action:Iron Oxide Scale Was Removed & Sensing Line restored.W/940506 Revised Ltr
05000244/LER-1994-022, :on 940202,determined That Containment Pressure Channels P-947 & P-948 Were Inoperable.Caused by Obstruction of Common Pressure Sensing Line.Corrective Action:Iron Oxide Scale Was Removed & Channels Declared Operable
05000335/LER-1988-002-02, :on 880210,discovered That Leakage on Containment Radiation Monitor Isolation Valve FCV-26-1 Exceeded Tech Spec Limits.Caused by Dirt Accumulation & Stem Corrosion.Valve Actuator Stem Cleaned
05000265/LER-2016-003, Drywell/Suppression Chamber Differential Pressure, Primary Containment Oxygen Concentration Technical Specification Compliance
L-2016-114, Response to Request for Additional Information Regarding License Amendment Request to Adopt TSTF-505, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 48
LR-N16-0055, Response to Request for Additional Information Regarding Chilled Water System Modifications
05000259/LER-2015-004, Regarding Containment Atmospheric Dilution B Train Supply System Inoperable Longer than Allowed by Technical Specifications
05000368/LER-2008-001, Unit 2 Regarding Containment Isolation Value Inoperable Longer than Allowed by Technical Specifications as a Result of Personnel Error During Planning and Construction of Scaffolding
TSTF-07-22, TSTF-478, Revision 2, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control
TSTF-07-09, TSTF-478, Revision 1, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control
05000368/LER-2006-001, Completion of a Plant Shutdown Required by Technical Specifications Due to Loss of Motive Power to Certain Containment Isolation Valves as a Result of a Phase to Ground Short Circuit
05000334/LER-2006-003, Regarding Inadvertent Technical Specification Noncompliance Due to Inoperable Containment Isolation Valve
NG-06-0472, Technical Specification Change Request (TSCR-083): Adoption of TSTF-478, Rev. 0, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control, Affected Tech Specs: Section 3.6.3.1 and 3.6.3.2
PLA-5882, Proposed Amendment No. 273 & 242 to License NPF-14 & NPF-22: Application for Technical Specification Improvement to Revise Technical Specifications to Eliminate Requirements for Hydrogen Recombiners and Hydrogen/Oxygen Monitors Using
05000412/LER-2005-001, Re Containment Isolation Valve Relay Failure Unknowingly Leads to Technical Specification Noncompliance
NLS2005031, Enclosure 2, NLS2005031, Cooper Nuclear Station, Offsite Dose Assessment Manual
RS-05-001, Request for a License Amendment to Extend the Completion Times Related to Technical Specifications Associated with Residual Heat Removal Service Water, Diesel Generator Cooling Water and the Opposite Unit Division 2 Diesel
05000316/LER-2004-004, Re Failure to Comply with Containment Integrity Requirements Specified in Technical Specifications 3.0.4, 3.6.1.1, 3.6.1.2 and 3.6.3.1
05000272/LER-2004-006, Operation in a Condition Prohibited by Technical Specification - Containment Isolation Valves
NL-04-0564, And Vogtle Electric Generating Plant, Application for Technical Specification Amendment to Eliminate Requirements for Hydrogen Recombiners and Hydrogen/Oxygen Monitors
TSTF-04-12, Submittal and Request for Fee Waiver for Review of TSTF-478, Revision 0, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control
B18951, Changes to Technical Specifications Bases
B18851, Response to Request for Additional Information on License Basis Document Change Request 2-17-02, Containment Systems
05000346/LER-2003-001, Potential Inability of Air-Operated Valves to Function During Design Basis Conditions
05000346/LER-2002-004, Re Containment Isolation Closure Requirements for RCP Seal Injection Valves MU66A-D
NUREG-1433, Part 1- Edwin I. Hatch, Units 1 & 2, License Amendments, Replace Current Technical Specification & Associated Bases
L-08-167, Transmittal of Technical Specification Bases Update
B18696, License Basis Document Change Request 2-17-02, Containment Systems
05000338/LER-1988-011, :on 880311,post-mod Testing Not Performed as Required by Two Tech Specs.Caused by Inadequacy of Original Engineering Work Request.Investigation Performed to Determine If Valves Been Stroke Time Tested
05000302/LER-1982-064-01, /01T-0:on 821029,containment Isolation Valve WDV-61 Declared Inoperable Due to Omission of Leak Rate Test Following Maint.Caused by Personnel Error.Personnel Reinstructed
PLA-5764, Proposed License Amendment Numbers 267 for Unit 1 and 232 for Unit 2 Mode Change Limitations Using the Consolidated Line Item Improvement (CLIIP) Process PLA-5764
2CAN112004, License Amendment Request - Application to Adopt a Safety Function Determination Program (SFDP)
B13701, Responds to NRC 901108 Request for Addl Info Re 900809 Application for Amend to License DPR-65,proposing Rev to Tech Specs 3.0.4,4.0.3 & 4.0.4 & Bases Sections Associated W/Specs 3.0 & 4.0 in Accordance W/Generic Ltr 87-09
NRC-23-0055, NRR E-mail Capture - (External Sender) Fermi 2 Power Plant, Emergency Application to Revise Technical Specifications to Adopt TSTF 568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.2 - Updated Clean Sheet for NRC-23-0055
L-2016-084, Response to Request for Additional Information Regarding License Amendment Request for Adoption of Technical Specifications Task Force (TSTF) Traveler TSTF-422, Revision 2, Change in Technical Specifications End States
05000316/LER-1983-117-03, /03L-0:on 831123,steam Generator 1 Blowdown Sample Isolation Valve DCR-301 Tripped Closed on High Alarm from Blowdown Radiation Monitor R-19.Caused by Leakage Due to Flat Spots on Two O-rings in Valve Actuator
05000346/LER-1983-020-03, /03X-1:on 830428,pressurizer Sample Isolation Valve Failed to Close.Caused by Personnel Error & Inadequate Maint Procedures.Torque Switch Reset,Valve Stem Cleaned & Lubricated & Maint Order 1-83-3114-00 Rewritten
05000316/LER-1982-088-03, /03L-0:on 821029,containment Sample Isolation Valve ECR-21 Would Not Cycle.Caused by Defective Solenoid Coil.Coil Replaced
2CAN061302, License Amendment Request - Supplemental Technical Specification (TS) Change Related to Revised Fuel Assembly Drop Analysis and Adoption of TSTF-51, TSTF-272, TSTF-286, and TSTF-471
05000302/LER-1983-003-03, Containment Isolation Valve MUV-41 Declared Inoperable.Caused by Stripped Gear Train Due to Lack of Lubrication.Gears Replaced & Lubricated
05000244/LER-1983-025-03, /03L-0:on 830620,small Leak Found in 3/8-inch Diameter Swag Lock Compression Fitting Connection Upstream of Pressurizer Liquid Sample Manual Isolation Valve V-956E. Caused by Thermal Stress
RA-20-0127, Application to Revise Technical Specifications to Adopt TSTF-568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.2
05000368/LER-1987-005, :on 870501,containment Isolation Valve Inoperable.Caused by Personnel Error.Maint Personnel Counseled on Importance of Assuring Proper Reinstallation of Seismic Supports