Report a Safety Concern
Search

The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Home Nuclear Reactors Operating Reactors Reactor Safety Information Topics Davis-Besse Reactor Vessel Head Degradation News and Correspondence

News and Correspondence for 2003

This page lists, in chronological order, general news and correspondence on Reactor Vessel Head Degradation for 2003.

This page includes links to files in non-HTML format. See Plugins, Viewers, and Other Tools for more information.

Date Description
12/30/03 Response to RAI Concerning Generic Letter 96-06, "Assurance of Equipment Operability and Containment Integrity During Design-Basis Accident Conditions."
12/30/03 Resubmittal of Previously Submitted Documents
12/23/03 NRC Integrated Inspection Report 50-346/03-22
12/19/03 Submittal of Revisions 7, 8, 9, and 10 of the Nuclear Operating Business Practice, Restart Readiness Review Extended Plant Outage (DBBP-VP-0002)
12/18/03 Response to NRC Bulletin 2003-04: Rebaselining of Data in the Nuclear Materials Management and Safeguards System (NMMSS).
12/18/03 Issuance of amendment - Motor Driven Feedwater Pump Flow Indication
12/17/03 Core Operating Limits Report and Reload Report for Cycle 14
12/17/03 Withdrawal of 10CFR50, Appendix R, Subsection III.L.I, Exemption Regarding Time to Reach Cold Shotdown
12/17/03 Response to Questions Regarding the 2002 Steam Generator Tube Inspections
12/16/03 License Amendment Application to Revise Technical Specification 3/4.4.5, "Reactor Coolant System - Steam Generators," to Permit One-Time Extension of Steam Generator Tube Inservice Inspection Interval
12/16/03 LER 03-014-00 Steam Feedwater Rupture Controls System Re-Energizes in a Blocked Condition
12/15/03 NRC Press Release III-03-78:Davis-Besse Restart Meeting Postponed to Dec. 29, Meeting on NRC Inspection Findings Delayed Until Dec. 19
12/11/03 NRC Inspection Report 05000346-03-020 (DRS); 09/08/03 - 10/01/03; Davis Besse Nuclear Power Station; TI 2515/148, Verification of Compliance with Interim Compensatory Measures Order, Revision 2; Baseline Procedures 71130.02, 71130.03 and 71151.
12/11/03 Request for additional information RE: 2002 Steam Generator Tube Service Inspection Results
12/05/03 NRC Special Inspection - Reactor Coolant System Leak Test - Report No. 05000346/2003023
12/04/03 Davis Besse NRC Update - December 2003 Issue
12/01/03 LER 03-013-00 Trip of Reactor Protection System During Plant Cooldown
11/26/03 Withdrawal of License Amendment Request 01-0008 to Revise Technical Specification 3/4.3.1, "Reactor Protection System Instrumentation," to Delete Action and Enhance Specification Clarity
11/26/03 Revised Response to NRC Generic Letter 98-04: Potential for Degradation of the Emergency Core Cooling System and the Containment Spray System After a Loss-of-Coolant Accident Because of Construction and Protective Coating Deficiencies and Foreign Material in Containment
11/26/03 LER 03-001-02 Potential of Air-Operated Valves to Functions During Design Basis Conditions
11/24/03 LER 2003-012-00 Auxiliary Feedwater Pump Turbine Inoperable due to Degraded Steam Traps
11/23/03

Integrated Report to Support Restart of the Davis-Besse Nuclear Power Station and Request for Restart Approval
11/20/03 Re-transmittal of Final Report on Examination of Reactor Vessel Head Degradation
11/20/03 Request for Additional Information for License Amendment on Steam and Feedwater Rupture Control System Instrumentation
11/20/03 Review of Generic Letter 96-06, "Assurance of Equipment Operability and Containment Integrity during Davis-Besse Accident Conditions
11/19/03 Response to NRC Bulletin 2003-02, "Leakage from Reactor Pressure Vessel Lower Head Penetrations and Reactor Coolant Pressure Boundary Integrity."
11/19/03 Davis Besse NRC Update - November 2003 Issue
11/17/03 LER 03-011-00: Inoperability of Containment Spray Pump 1 Due to Solid State Trip Device Ground Fault False Trip
11/14/03 LER 02-007-01, Davis-Besse Unit 1 Potential Leakage of Incore Monitoring Instrumentation Nozzles at Bottom of Reactor Vessel
11/08/03 Disposition of Reactor Vessel Head Sample Piece "A2B"
11/07/03 NRC Press Release III-03-067: NRC Davis-Besse Oversight Panel to Meet Nov. 12 in Oak Harbor, OH
11/03/03 Requested for Additional Information Regarding the 2002 Steam Generator Tube Inspections (MB9541)
10/30/03 NRC Integrated Inspection Report 05000346/2003018
10/29/03 Completion of NRC Order (EA-03-038) Requirements Related to Fitness-for-Duty Enhancements Applicable to Nuclear Facility Security Force Personnel for Davis-Besse, Unit 1.
10/27/03 Supplemental Information for Technical Specification Change Regarding TS 3/4.7.1.7, "Motor Driven Feedwater Pump System" to Correct the Safety Grade Designation of the Motor Driven Feedwater Pump Flow Indication in Surveillance Requirement 4.7.1.e.2 (LAR 03-0001, TAC No. MB9017)
10/27/03 LER 03-010-00, Davis-Besse Unit 1 Potential Inoperability of Decay Heat/Low Pressure Injection System Due to Loss of Valve Disc Pins
10/21/03 NRC Special Inspection - System Health Assurance Followup - Report No. 0500346/2003003 (DRS)
10/16/03 Davis-Besse Nuclear Power Station, Unit 1, Response to NRC Bulletin 2003-01, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors." (TAC No. MB9572)
10/13/03 LER 2003-009, Loss of Offsite Power due to Degraded Regional Grid Voltage
10/08/03 Preliminary Significance Determination for a Greater than Green Finding (NRC Inspection Report 50-346/2003-21) - Davis-Besse High Pressure Injection Pump Design Issue
10/07/03 Final Significance Determination for a Yellow Finding (NRC Inspection Report 50-346/03-15) - Davis-Besse Potential Clogging of the Emergency Sump Following a Loss of Coolant Accident
10/07/03 Davis Besse NRC Update - October 2003 Issue
09/29/03 Issuance of Amendment - Safety Features Actuation System (SFAS) Instrumentation
09/29/03 NRC Integrated Inspection Report 50-346/03-17
09/25/03 Issuance of Amendment Re: Startup Test Reports (TAC No. MB9478)
09/19/03 Update of Confirmatory Action Letter 3-02-001D Status for Davis-Besse Nuclear Power Station
09/12/03 LER 2003-003-01, Potential Inadequate HPI Pump Minimum Recirculation Flow Following SBLOCA
09/11/03

EDO Letter - Semiannual Report - Status of Implementation of Davis-Besse Lessons Learned Task Force Report Recommendations
09/10/03 Davis Besse NRC Update - September 2003 Issue
09/05/03 Issuance of Amendment No. 257 (MB8953) - One-Time Exception during Restart Test Plan
08/29/03

Semiannual Report - Status of Implementation of Davis-Besse Lessons Learned Task Force Report Recommendations
08/20/03 Supplemental Information Regarding License Amendment Application to Revise Technical Specification (TS) 3/4.5.2, Emergency Core Cooling Systems - ECCS Subsystems - Tavg > 280F (License Amendment Request No. 03-0008; TAC No. MB8953)
08/18/03 LER 03-001-01 From Davis-Besse Unit 1 Regarding Potential Inability of Air-Operated Valves to Function During Design Basis Conditions
08/14/03 Davis Besse NRC Update - August 2003 Issue
08/13/03 Transmittal of Final Report on Examination of the Reactor Vessel Head Degradation, and Safety Significance
08/12/03 Issuance of Amendment - Pressurizer - High Level Limit
08/12/03 Issuance of Amendment (TAC No. MB9016)
08/11/03 License Amendment Application to Modify Technical Specification 3/4.5.2, Emergency Core Cooling Systems - ECCS Subsystems - Tavg > 280F (License Amendment Request No. 03-0004)
08/11/03 10 CFR 50.55a Request RV-3 Regarding American Society of Mechanical Engineers Code for Operation and Maintenance (OM) of Nuclear Power Plants Inservice Testing Requirement at the Davis-Besse Nuclear Power Station, Unit 1
08/11/03 60 Day Response to Generic Letter 2003-01:"Control Room Habitability"
08/08/03 60-Day Response to NRC Bulletin 2003-01, "Potential Impact of Debris Blockage on Emergency Sump Recirculation at Pressurized-Water Reactors"
08/07/03 Signature Validation for August 2, 2003 Regulatory Correspondence, Serial Number 2980
08/07/03 Request for Additional Information (MB8395)
08/05/03 LER 03-007-00 - Davis-Besse Unit 1, "AC System Analysis Shows Potential Loss of Offsite Power Following Design Basis Accident"
08/05/03 NRC Special Inspection - Containment Integrated Leak Rate Test - Report No. 50-346/03-05 (DRS)
08/02/03 Supplemental Information Regarding License Amendment Application to Review Technical Specification (TS) 3/4.5.2, Emergency Core Cooling Systems - ECCS Subsystems - Tavg > 280F (License Amendment Request No. 03-0008; TAC No. MB8953)
07/31/03 Request for Additional Information - Davis-Besse Nuclear Power Station (TAC No. MB8953)
07/30/03 Davis-Besse Nuclear Power Station Incore Monitoring Instrumentation Nozzle Inspections
07/30/03 NRC Integrated Inspection Report 50-346/2003-015 Preliminary Yellow Finding
07/23/03 Reactor Vessel Closure Head Welding Data Sheets
07/21/03 LER 03-006 Davis-Besse Unit 1 - Potential Errors in Analysis of Block Walls Regarding HELB Differential Pressure & Seismic Events
07/17/03 Update of Confirmatory Action Letter 3-02-001C Status for Davis-Besse Nuclear Power Station
07/17/03 Davis Besse NRC Update - July 2003 Issue
07/11/03 NRC Inspection Report 50-346/03-19 - EP Exercise/Inspection
07/07/03 NRC Special Inspections - Adequacy of Safety Significant Programs - Reports No. 50-346/02-11 and 50-346/03-09
07/02/03 Davis-Besse Oversight Panel Restart Checklist, Revision 3
07/01/03 NRC Press Release III-03-046: NRC Oversight Panel to Meeting with Davis-Besse Officials July 9
06/30/03 LER 03-005 - Containment Gas Analyzer Heat Exchanger Valves Found Closed Rendering the Containment Gas Analyzer Inoperable
06/30/03 Davis-Besse Nuclear Power Station - Inspection Schedule Update
06/17/03 NRC Special Inspection - Emergency Core Cooling System and Containment Spray System Sump Inspection Report No. 50-346/03-06(DRS)
06/16/03 NRC Integrated Inspection Report 50-346/03-13
06/16/03 License Amendment Application to Modify Technical Specification 3/4.5.2, Emergency Core Cooling Systems - ECCS Subsystems - Tavg > 280F (License Amendment Request No. 03-0008)
06/15/03 LER-2003-004 Inadequate Calibration of Reactor Coolant System Temperature Instrumentation
06/10/02 LER-2003-003 Potential Inadequate HPI Pump Minimum Recirculation Flow Following SBLOCA
06/03/03 Davis Besse NRC Update - June 2003 Issue
05/30/03 NRC Supplemental Inspection and Radiation Protection Program Effectiveness Review Report No. 50-346/03-08(DRS)
05/29/03 Final Significance Determination for a Red Finding (NRC Inspection Report 50-346/2003-16-Davis-Besse Control Rod Drive Mechanism Penetration Cracking and Reactor Pressure Vessel Head Degradation
05/21/03 License Amendment Application to Revise Technical Specification (TS) 3/4.5.2, "ECCS Subsystems - Tavg ≥ 280F," to Relocate the Requirements of Technical Specification Surveillance Requirement 4.5.2.h (License Amendment Request No. 03-0002)
05/19/03 License Amendment Application to Revise Technical Specification 3/4.7.1.7, "Motor Driven Feedwater Pump System" to Correct the Safety-Grade Designation of the Motor Driven Feedwater Pump Flow Indication in Surveillance Requirement 4.7.1.7.e.2 (License Amendment Request No. 03-0001)
05/09/03 NRC Integrated Inspection Report 50-346/03-04
05/05/03 LER 2003-002 Potential Degradation of High Pressure Injection Pums Due to Debris in Emergency Sump Fluid Post Accident
05/05/03 Davis Besse NRC Update - May 2003 Issue
04/24/03 Response to the Nuclear Regulatory Commission (NRC) Preliminary Significance Assessment for the Control Rod Drive Mechanism Cracking and Reactor Pressure Vessel Degradation Identified for the Davis-Besse Nuclear Power Station
04/23/03 Submittal of the Report Titled "Safety Culture Evaluation of the Davis-Besse Nuclear Power Station", dated April 14, 2003
04/23/03 Westinghouse Letter - Request for Review and Approval of WCAP, "Ambient Temper Bead Repair of Head Adapter Penetrations in PWR Reactor Vessel Upper Heads"
04/22/03 Letter from Brian W. Sheron, NRC to Alex Marion, NEI, regarding Pressurized Water Reactor (PWR) Materials Reliability Project Interim Alloy 600 Safety Assessment for U.S. PWR Plants (MRP-44), Part: Alloy 82/182 Pipe Butt Welds
04/14/03 Davis Besse NRC Update - April 2003 Issue
04/11/03

Letter from R. Barrett, NRC, Office of Nuclear Reactor Regulation (NRR), Division of Engineering to Alex Marion, Nuclear Energy Institute, regarding Flaw Evaluation Guidelines
03/31/03 LER 2003-001 Potential Inability of Air-Operated Valves to Function During Design Basis Conditions
03/14/03 Issuance of Errata to Order Establishing Interim Inspection Requirements for Reactor Pressure Vessel Heads at Pressurized Water Reactors
03/11/03 Davis Besse NRC Update - March 2003 Issue
03/10/03 William Travers Letter to Commission - Plans for Implementing the Davis-Besse Lessons Learned Task Force Recommendations
03/07/03

Samuel Collins and Ashok Thadani Letter - Actions Resulting from the Davis-Besse Lessons Learned Task Force Report Recommendations - Correction
03/07/03 NRC Integrated Inspection Report No. 50-346/03-02
02/27/03 Licensee Response to 10 CFR 2.206 Petition Filed by Congressman Kucinich
02/26/03 NRC Special Inspection-System Health Assurance-Reports No. 50-346/02-13(DRS) and 50-346/02-14(DRS)
02/25/03 Davis-Besse Control Rod Drive Mechanism Penetration Cracking and Reactor Pressure Vessel Head Degradation Preliminary Significance Assessment (Report No. 50-346/2002-08(DRS))
02/20/03 Letter from Steven M. Long, Senior Reliability and Risk Analyst - Clarification of the Extent of My Dissent with the Agency's Decision Not to Order the Davis-Besse Plant to Shut Down for Inspection by December 31, 2001 and Explanation of the Basis for My Disagreement
02/19/03

Letter from Alexander Marion, NEI, to Brian Sheron, NRC, on Questions Concerning NRC Order EA-03-009
02/19/03 Final Significance Determination for Two White Findings and Notice of Violation, NRC Inspection Report No. 50-346/02-16(DRS)
02/11/03

Letter from Samuel J. Collins, Director, Office of Nuclear Reactor Regulation - Issuance of Order Establishing Interim Inspection Requirements for Reactor Pressure Vessel Heads at Pressurized Water Reactors
02/10/03 Davis Besse NRC Update - February 2003 Issue
02/06/03 NRC Special Inspection-Management and Human Performance Root Cause Assessment-Report No. 50-346/02-15(DRP)
01/31/03 Davis-Besse Nuclear Power Station NRC Integrated Inspection Report 50-346/02-19
01/21/03 Update of Confirmatory Action Letter 3-02-01B Status for Davis-Besse Nuclear Power Station
01/14/03 Comments in Defense of the Risk-Informed Decision Making Process and on the OIG Event Inquiry, "NRC's Regulation of Davis Besse Regarding Damage to the Reactor Vessel Head"
01/14/03 Davis Besse NRC Update - January 2003 Issue
01/09/03

Submittal of Evaluations Performed at Davis-Besse to Address U. S. NRC Inspection Manual Chapter (IMC) 0350, Item Number 1, Adequacy of Root Cause Determination:
01/08/03

Overview of Research Related to Degradation of Control Rod Drive Mechanisms
01/08/03 Memorandum from Chairman Richard A. Meserve to Hubert T. Bell, Inspector General, regarding Report on NRC's Regulation of Davis-Besse Regarding Damage to the Reactor Vessel Head (Case No. 02-03S).
01/07/03 Letter from Chairman Richard A. Meserve to the Editor of the New York Times Regarding Davis-Besse Nuclear Power Plant
01/07/03 NRC Special Inspections - Substantial Potential for an Overexposure of Occupational Workers (Report No. 50-346/02-16(DRS)) and Uncontrolled Release of Radioactive Material to the Environment (Report No. 50-346/02-06(DRS)) Two Preliminary White Findings
01/03/03 Memorandum from William D. Travers, Executive Director for Operations to The Commissioners - Senior Management's Review of the Davis-Besse Lessons Learned Task Force Report

To top of page

Page Last Reviewed/Updated Friday, January 7, 2022