This page lists, in chronological order, general news and correspondence
on Reactor Vessel Head Degradation for 2002.
| Date |
Description |
| 12/24/02 |
Update of Confirmatory Action Letter 3-02-00A
Status for Davis-Besse Nuclear Power Station |
| 12/17/02 |
Davis-Besse Nuclear Power Station, Unit
1 - Requests for Relief from American Society of Mechanical Engineers
Boiler and Pressure Vessel Code Requirements for the Third Ten-Year
Interval Inservice Inspection Program (RR-A2) |
| 12/13/02 |
Davis-Besse Nuclear Power Station, Unit
1 - Requests for Relief from American Society of Mechanical Engineers
Boiler and Pressure Vessel Code Requirements for the Third Ten-Year
Interval Inservice Inspection Program |
| 12/10/02 |
Davis Besse NRC Update - December 2002 Issue |
| 12/09/02 |
NRC Integrated Inspection Report No. 50-346/02-17 |
| 12/03/02 |
Staff Evaluation - Davis Besse Response
to NRC Bulletin 2001-01 |
| 11/29/02 |
NRC Special Inspection - Boric Acid Corrosion
Extend of Condition - Report No. 50-346/02/12 (DRS) |
| 11/29/02 |
NRC Special Inspection - Reactor Vessel
Head Replacement - Report No. 50-346/02-07 (DRS) |
| 11/26/02 |
Senior Management Review of the Lessons-Learned
Report for the Degradation of the Davis-Besse Nuclear Power Station
Reactor Vessel Head |
| 11/14/02 |
Davis Besse NRC Update - November 2002 Issue |
| 11/08/02 |
Revised Model Requests for Additional Information
(RAIs) Related to Boric Acid Corrosion Control Programs (NRC Bulletin
2002-01) |
| 10/30/02 |
NRC Integrated Inspection Report No. 50-346/02-10
|
| 10/30/02 |
Davis-Besse Oversight Panel Restart Checklist,
Revision 1 |
| 10/30/02 |
Model Requests for Additional Information
(RAIs) Related to Boric Acid Corrosion Control Programs (NRC Bulletin
2002-01) |
| 10/23/02 |
Letter from Brian W. Sheron, NRC to Alex
Marion, NEI, regarding Emergent Material and Inspection Issues |
| 10/18/02 |
Temporary Instruction 2515/150: Reactor
Pressure Vessel Head and Vessel Head Penetration Nozzles (NRC Bulletin
2002-02) |
| 10/16/02 |
Condition Report Regarding Preliminary Results
from Analysis of Incore Nozzle Samples |
| 10/16/02 |
Davis Besse NRC Update - October 2002 Issue |
| 10/09/02 |
NRC Press Release 02-119: NRC Issues "Lessons
Learned" Task Force Report on Agency's Handling of Davis-Besse
Reactor Vessel Head Damage |
| 10/02/02 |
Davis-Besse - NRC Augmented Inspection Team
Follow-up Special Inspection Report No. 50-346/02-08 (DRS) |
| 10/01/02 |
NRC Press Release III-02-053: NRC Expands
Special Inspection of Worker Radiation Exposures at Davis-Besse |
| 09/30/02 |
Lessons Learned Task Force Report
|
| 09/23/02 |
Confirmatory Action Letter Response
- Revision 1 to Root Cause Analysis Report Regarding Reactor Pressure
Vessel Head Degradation
Letter: | Pages
1-50 | Pages
51 - 100 | Pages
101 - 150 | Pages
151 - 186 |
|
| 09/23/02 |
10 CFR 50.55a Requests for Alternative Pursuant
to American Society of Mechanical Engineers Boiler and Pressure Vessel
Code Requirements at the Davis-Besse Nuclear Power Station - Third
Ten-Year Interval Inservice Inspection Program(RR-A26 and RR-A-27) |
| 09/23/02 |
Transmittal of Revision 3 of the Davis-Besse
Return to Service Plan |
| 09/17/02 |
Davis Besse NRC Update - September
2002 Issue |
| 09/13/02 |
NRC Special Inspection - Boric
Acid Corrosion Extent of Condition - Report No. 50-346/02-09 (DRS) |
| 09/10/02 |
NRC Preliminary Notification:
Crack Identified in Vessel Head Stainless Steel Liner |
| 09/09/02 |
Davis Besse Condition Report
02-05705: Cladding Crack Found in Original RVH Cavity
Images:
Top
View of Cladding
Crack
In Cladding |
| 09/07/02 |
Davis Besse Condition Report
02-05536: Crack Indication in J-Groove Weld of Old CRDM Nozzle 3 |
| 08/21/02 |
Management and Human Performance
Root Cause Analysis Report on Failure to Identify Reactor Pressure
Vessel Head Degradation: |
Pages 1-50 | Pages
51-100 |
Pages 101-150 | Pages
151-168 | |
| 08/16/02 |
Transmittal of NRC Inspection
Manual Chapter 0350 Panel Restart Checklist |
| 08/09/02 |
Replacement of the Reactor Pressure
Vessel Head at Davis-Besse Nuclear Power Station |
| 08/08/02 |
NRC Press Release III-02-048:
NRC Oversight Panel to Hold Three Meetings on Davis-Besse Reactor
Vessel Head Damage in Lisle, IL, and Oak Harbor, OH |
| 08/01/02 |
10 CFR 50.55a Request for Use of an Alternative
to the American Society of Mechanical Engineers Boiler and Pressure
Vessel Code (ASME Code) Requirements at the Davis-Besse Nuclear Power
Station - Third Ten-Year Interval Inservice Inspection Program(RR-A2
Revision) |
| 08/01/02 |
10 CFR 50.55a Requests for Alternative Pursuant
to American Society of Mechanical Engineers Boiler and Pressure Vessel
Code (ASME Code) Requirements at the Davis-Besse Nuclear Power Station
- Third Ten-Year Interval Inservice Inspection Program(RR-A26 and
RR-A-27) |
| 07/09/02 |
NRC Press Release III-02-042:
NRC Oversight Panel to Hold Two Meetings in Oak Harbor, Ohio, on Davis-Besse
Reactor Vessel Head Damage |
| 06/17/02 |
NRC Staff Visit to BWXT Hot
Cell Facility
|
| 06/06/02 |
NRC Press Release III-02-033:
NRC to Hold Three Public Meetings on Davis-Besse June 12 in Ohio |
| 05/30/02 |
NRC Press Release 02-066: NRC
to Meet with FirstEnergy Nuclear Operating Co. June 4 to Discuss Replacement
of Davis-Besse Reactor Vessel Head |
| 05/23/02 |
FENOC Press Release - FENOC
Acquires Unused Reactor Vessel Head |
| 05/21/02 |
Transmittal of Davis-Besse Nuclear
Power Station, Unit 1 Return to Service Plan |
| 05/20/02 |
NRC Press Release 02-060: NRC
Task Force to Assess Lessons Learned from Davis-Besse Reactor Vessel
Head Degradation |
| 05/16/02 |
Response to Petition by Union
of Concerned Scientists (UCS) under 10CFR2.206 regarding Davis-Besse
Nuclear Power Station, Unit 1 |
| 05/15/02
|
Revised Confirmatory Action Letter to Davis-Besse
Nuclear Power Station (CAL No. 3-02-001A) |
| 05/15/02 |
Supplemental Information in
Response to NRC Question Number 24 on the Preliminary Probably Cause
Summary Report dated March 22, 2002 |
| 05/03/02 |
NRC Press Release III-02-024:
Davis-Besse Oversight Panel to Hold First Meeting May 9 in Oak Harbor,
Ohio |
| 05/03/02 |
Davis Besse Nuclear Power Station
NRC Augmented Inspection Team - Degradation of the Reactor Pressure
Vessel Head - Report No. 50-346/02-03(DRS) |
| 05/02/02 |
NRC Press Release 02-056: To
Meet with FirstEnergy May 7 to Discuss Root Cause of Davis-Besse Vessel
Head Degradation |
| 04/30/02 |
NRC Press Release III-02-023:
Establishes Agency Oversight Panel for Davis-Besse Reactor Head Degradation
Issue |
| 04/30/02 |
Responses to NRC Questions on
the Preliminary Probable Cause Report dated March 22, 2002. |
| 04/29/02 |
Letter from J.E. Dyer, Regional
Administrator, Region III, to Howard Bergendahl, Vice President -
Nuclear, Davis-Besse, regarding NRC Oversight Efforts regarding the
Davis-Besse Nuclear Power Station |
| 04/25/02 |
Partial Response to Confirmatory
Action Letter No. 3-02-001 - Repair Plans for the Davis Besse Nuclear
Power Station, Unit 1 Reactor Pressure Vessel Head |
| 04/25/02 |
10 CFR 50.55a Requests for Alternate
Pursuant to ASME Code ISI Requirements at the Davis-Besse Nuclear
Power Station - Third Ten-Year Interval (RR-A23 and RR-A24) |
| 04/25/02 |
10 CFR 50.55a Requests for Alternate
Pursuant to ASME Code ISI Requirements at the Davis-Besse Nuclear
Power Station - Third Ten-Year Interval (RR-A25) |
| 04/18/02 |
Root Cause Analysis Report
|
| 04/17/02 |
NRC Press Release III-02-021:
Dispatches Inspector to Davis-Besse Nuclear Power Station Following
Discovery of Radioactive Particles Off-Site |
| 04/04/02 |
NRC Press Release 02-043: To
Meet with FirstEnergy Nuclear Operating Company April 10 to Discuss
Proposed Repairs to Davis-Besse Reactor Vessel |
| |
NRC
Preliminary Notification: Reactor Vessel Head Degradation (Second
Update) |
| 03/28/02
|
Letter from Alex Marion,
NEI, to Brian Sheron, NRC, Industry Survey Questions on PWR Head
Inspections
- Attachment
1 : PWR Plant Groupings in Response to Reactor Closure Head
Degradation
- Attachment
2 : MRP Category Definitions for PWR Plant Groupings
- Attachment
3 : Licensee Responses to Industry Survey Questions on PWR
Head Inspections
|
| 03/28/02 |
NRC Press Release III-02-012:
Inspection Team to Present Findings April 5 on Davis-Besse Reactor
Vessel Head Damage |
| 03/22/02
|
Probable Cause Summary Report
for CR2002-0891, Significant Degradation of the Reactor Vessel Head
Pressure Boundary; S. A. Loehlein, Root Cause Team Leader |
| 03-19-02 |
NRC Press Release 02-031: Requires
Pressurized Water Reactor Licensees to Submit Information on Reactor
Vessel Heads |
| 03-19-02
|
Letter from Alexander Marion, MRP, to Brian
Sheron, NRC, providing Preliminary
Licensee Responses to Industry Survey Questions on PWR Head Inspections. |
| 03-18-02
|
NRC Bulletin 2002-01: Reactor Pressure Vessel
Head Degradation and Reactor Coolant Pressure Boundary Integrity |
| |
NRC
Preliminary Notification: Significant Metal Loss in Reactor Vessel
Head (Update) |
| 03-15-02
|
NRC Press Release 02-029: NRC Issues Confirmatory
Action Letter to Davis-Besse Nuclear Power Station, Schedules Meetings
and Establishes a Web Page on Reactor Vessel Head Degradation Issues.
|
| 03-13-02 |
Summary of March 13, 2002, Telephone Conversation
on the Davis-Besse Reactor Vessel Head Degradation Follow-up. |
| 03-13-02
|
Confirmatory Action Letter to Davis-Besse
Nuclear Power Station (CAL No. 3-02-001) |
| 03-12-02
|
NRC Augmented Inspection Team Charter -
Davis-Besse Reactor Vessel Head Material Loss |
| 03-12-02 |
NRC Press Release: III-02-002: NRC to Conduct
Augmented Inspection of Davis-Besse Reactor Vessel Damage |
| 03-11-02
|
Letter from Brian W. Sheron, Associate
Director for Project Licensing and Technical Analysis, Office of Nuclear
Reactor Regulation, to Alex Marion, Nuclear Energy Institute, regarding
Reactor Pressure Vessel Head Degradation at Davis Besse Nuclear Power
Station |
| |
NRC Preliminary
Notification: Significant Metal Loss Observed in Reactor Vessel Head
at Davis Besse Nuclear Power Plant |
