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 Issue dateTitle
05000397/FIN-2012005-05Failure to Follow Shutdown Cooling Isolation Logic Bypass Procedures Results in Loss of Safety Function
05000397/FIN-2015003-06Implementation of Enforcement Guidance Memorandum (EGM) 11-003, Revision 2
ENS 40959Manual Reactor Scram Due to Reactor Feedwater Pump Trip
ENS 40964Manual Reactor Scram Due to Trip of Reactor Feedwater Pump "a" on Low Suction Pressure.
GO2-02-036, Annual Operating Report 200128 February 2002Annual Operating Report 2001
GO2-02-135, Revised Request for Amendment on the Alternate Source Term27 August 2002Revised Request for Amendment on the Alternate Source Term
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 Monitors21 September 2004License Amendment Request Adoption of TS Task Force Traveler - 447, Revision 1, Elimination of Hydrogen Recombiners and Change to Hydrogen and Oxygen Monitors
GO2-04-177, License Amendment Request: Control Rod Drop Accident Analysis12 October 2004License Amendment Request: Control Rod Drop Accident Analysis
GO2-06-080, Proposed Amendment of Facility Operating License to Remove Operating Mode Restrictions for Performing Emergency Diesel Generator Surveillance Testing22 May 2006Proposed Amendment of Facility Operating License to Remove Operating Mode Restrictions for Performing Emergency Diesel Generator Surveillance Testing
GO2-07-111, License Amendment Request for Proposed Changes to Columbia Technical Specifications: Adoption of Approved Generic Technical Specification Changes Associated with Containment Isolation Valves30 July 2007License Amendment Request for Proposed Changes to Columbia Technical Specifications: Adoption of Approved Generic Technical Specification Changes Associated with Containment Isolation Valves
GO2-08-122, Supplement to Adoption of Approved Generic Technical Specification Changes Associated with Containment Isolation Valves28 August 2008Supplement to Adoption of Approved Generic Technical Specification Changes Associated with Containment Isolation Valves
GO2-08-124, License Amendment Request for Proposed Changes to Columbia Technical Specification 3.3.3.1; Change Group 1 Primary Containment Isolation Valves Reactor Water Level Isolation Signal from Level 2 to Level 19 September 2008License Amendment Request for Proposed Changes to Columbia Technical Specification 3.3.3.1; Change Group 1 Primary Containment Isolation Valves Reactor Water Level Isolation Signal from Level 2 to Level 1
GO2-09-157, Response to Request for Additional Information Re Generic Letter 2008-019 December 2009Response to Request for Additional Information Re Generic Letter 2008-01
GO2-10-051, License Amendment Request to Change Technical Specifications Relating to Traversing In-Core Probe Containment Isolation Valve Instrumentation29 March 2010License Amendment Request to Change Technical Specifications Relating to Traversing In-Core Probe Containment Isolation Valve Instrumentation
GO2-10-052, License Amendment Request for Proposed Changes to Technical Specification 3.3.6.1; Add Channel Check Surveillance Requirement to Primary Containment Isolation Instrumentation Main Steam Line Isolation - Reactor Vessel.31 March 2010License Amendment Request for Proposed Changes to Technical Specification 3.3.6.1; Add Channel Check Surveillance Requirement to Primary Containment Isolation Instrumentation Main Steam Line Isolation - Reactor Vessel.
GO2-10-121, Emergency Action Level Scheme Change to NEI 99-01, Rev. 5 Format25 August 2010Emergency Action Level Scheme Change to NEI 99-01, Rev. 5 Format
GO2-11-010, Response to Request for Additional Information Regarding Traversing In-Core Probe Containment Isolation Valve Instrumentation License Amendment Request14 January 2011Response to Request for Additional Information Regarding Traversing In-Core Probe Containment Isolation Valve Instrumentation License Amendment Request
GO2-12-003, License Amendment Request to Make Administrative and Editorial Changes to Technical Specifications and the Operating License9 January 2012License Amendment Request to Make Administrative and Editorial Changes to Technical Specifications and the Operating License
GO2-13-075, Response to Request for Additional Information Regarding License Amendment to Implement Prnm/Arts/Mellla9 May 2013Response to Request for Additional Information Regarding License Amendment to Implement Prnm/Arts/Mellla
GO2-13-138, License Amendment Request for Adoption of TSTF-493, Revision 4, Option a2 October 2013License Amendment Request for Adoption of TSTF-493, Revision 4, Option a
GO2-14-043, License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level-High24 March 2014License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level-High
GO2-14-103, Proposed Revision to License Amendment Request to Adopt TSTF-493, Revision 4, Option a, and Response to Request for Additional Information19 June 2014Proposed Revision to License Amendment Request to Adopt TSTF-493, Revision 4, Option a, and Response to Request for Additional Information
GO2-14-164, Response to NRC Request for Additional Information Re License Amendment Request for Adoption of TSTF-493, Revision 4, Option a17 November 2014Response to NRC Request for Additional Information Re License Amendment Request for Adoption of TSTF-493, Revision 4, Option a
GO2-15-007, License Amendment Request for Adoption of Technical Specification Task Force Traveler-425, Revision 317 March 2015License Amendment Request for Adoption of Technical Specification Task Force Traveler-425, Revision 3
GO2-15-159, Final Safety Analysis Report, Amendment 63, Chapter 13 -Conduct of Operations21 December 2015Final Safety Analysis Report, Amendment 63, Chapter 13 -Conduct of Operations
GO2-16-071, Final Technical Specification Markup and Clean Pages for License Amendment Request to Adopt Technical Specification Task Force (TSTF)-425, Revision 3 to Relocate Specific Surveillance Frequencies to a Licensee Controlled Program11 May 2016Final Technical Specification Markup and Clean Pages for License Amendment Request to Adopt Technical Specification Task Force (TSTF)-425, Revision 3 to Relocate Specific Surveillance Frequencies to a Licensee Controlled Program
GO2-16-087, License Amendment Request for Changes to Technical Specification 2.1.1, Reactor Core SLs12 July 2016License Amendment Request for Changes to Technical Specification 2.1.1, Reactor Core SLs
GO2-16-096, License Amendment Request to Revise Operating License and Technical Specifications for Measurement Uncertainty Recapture Power Uprate28 June 2016License Amendment Request to Revise Operating License and Technical Specifications for Measurement Uncertainty Recapture Power Uprate
GO2-16-155, Response to Request for Additional Information for License Amendment Request to Reduce the Reactor Steam Dome Pressure Specified in Technical Specification 2.1.1, Reactor Core Sls from the Reactor Systems Branch17 November 2016Response to Request for Additional Information for License Amendment Request to Reduce the Reactor Steam Dome Pressure Specified in Technical Specification 2.1.1, Reactor Core Sls from the Reactor Systems Branch
GO2-17-038, License Amendment Request to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.23 October 2017License Amendment Request to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control.
GO2-17-062, License Amendment Request to Revise Technical Specifications to Adopt TSTF-523, Revision 227 March 2017License Amendment Request to Revise Technical Specifications to Adopt TSTF-523, Revision 2
GO2-17-194, Supplement to License Amendment Request to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control15 November 2017Supplement to License Amendment Request to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control
GO2-18-102, Response to Supplemental Information Needed for Acceptance of Requested Licensing Action Re-Renewed Facility Operating License and Technical Specification Clean-Up7 August 2018Response to Supplemental Information Needed for Acceptance of Requested Licensing Action Re-Renewed Facility Operating License and Technical Specification Clean-Up
GO2-20-004, Application to Revise Technical Specifications to Adopt TSTF-564, Safety Limit MCPR27 January 2020Application to Revise Technical Specifications to Adopt TSTF-564, Safety Limit MCPR
GO2-20-095, Application to Revise Technical Specifications to Adopt TSTF-582, 'Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements24 September 2020Application to Revise Technical Specifications to Adopt TSTF-582, 'Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements
GO2-22-001, License Amendment Request to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b3 February 2022License Amendment Request to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b
GO2-22-096, Supplement to License Amendment Request to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b4 October 2022Supplement to License Amendment Request to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b
GO2-23-107, Application to Revise Technical Specifications to Adopt TSTS-584, Eliminate Automatic RWCU System Isolation on SLC Initiation5 December 2023Application to Revise Technical Specifications to Adopt TSTS-584, Eliminate Automatic RWCU System Isolation on SLC Initiation
GO2-83-313, Final Deficiency Rept Re Incorrect Wiring of Reactor Vessel Water Level Indicating Switches MS-LIS-37A & MS-LIS-37C. Initially Reported on 830315.Switches Rewired to Conform to GE Design Requirements6 April 1983Final Deficiency Rept Re Incorrect Wiring of Reactor Vessel Water Level Indicating Switches MS-LIS-37A & MS-LIS-37C. Initially Reported on 830315.Switches Rewired to Conform to GE Design Requirements
IR 05000397/198601125 July 1986Insp Rept 50-397/86-11 on 860616-27.Violations Noted.Major Areas Inspected:Mgt Controls & Licensee Activities,Including Operator Recovery Actions,Qa Program,Measuring & Test Equipment & Tech Spec Surveillances & Tests
IR 05000397/200300924 November 2003IR 05000397-03-009, on 09/29-10/09/03, Energy Northwest, Columbia Generating Station, Biennial Baseline Inspection of the Identification and Resolution of Problems
IR 05000397/20050032 August 2005IR 05000397-05-003 on 3/25/2005 - 6/23/2005 for Columbia Generating Station. Operator Workarounds, Access Control to Radiological Significant Areas, and Event Followup
IR 05000397/200700313 August 2007IR 05000397-07-003, on 03/31/07 - 06/29/07, Columbia Generating Station, Inservice Inspection Activities, Operability Evaluations, Event Follow-Up, Other Activities
IR 05000397/20070047 November 2007IR 05000397-07-004; 06/30/2007 - 09/28/2007; Columbia Generating Station; Event Follow-up
IR 05000397/20080029 May 2008IR 05000397-08-002, on 01/01/2008 - 03/31/2008, Columbia, Equipment Alignment, Operability Evaluations, Event Followup
IR 05000397/200901023 November 2009IR 05000397-09-010 on 08/17/09 - 10/20/09 for Columbia Generating Station
IR 05000397/20110042 November 2011IR 05000397-11-004 on 06/26/2011 09/24/2011 Columbia Generating Station, Integrated Resident & Regional Report; Equipment Alignment; Maintenance Effectiveness; Operability Evaluations; Evaluations of Changes, Tests, or Experiments & Permane
IR 05000397/20120058 February 2013IR 05000397-12-005, 09/22/2012 - 12/31/2012, Columbia Generating Station, Integrated Resident & Regional Report; Maintenance Effectiveness, Operability Evaluations and Functionality Assessments; Surveillance Testing; Problem Identification
IR 05000397/201500312 November 2015IR 05000397/2015003, July 1, 2015 Through September 30, 2015, Columbia Generating Station Exercise of Enforcement Discretion
IR 05000397/20170045 February 2018NRC Integrated Inspection Report 05000397/2017004 and Exercise of Enforcement Discretion