This page lists, in chronological order, general news and correspondence
on RPV Bottom Head Issues.
| Date |
Description |
| 10/15/03 |
Supplement to LER 03-003, Bottom Mounted
Instrumentation Penetration Indications |
| 09/08/03 |
NRC Special Inspection Team Report 050000498/2003008
and 05000499/2003008 and Exercise of Enforcement Discretion |
| 08/21/03 |
June 12, 2003 Telecon Summary |
| 08/21/03 |
June 19, 2003 Telecon Summary |
| 08/21/03 |
Bulletin 2003-02: Leackage from Reactor
Pressure Vessel Lower Head penetrations and Reactor Coolant Pressure
Boundary Integrity |
| 08/18/03 |
STP Unit 1 Reactor Pressure Vessel Head
Inspection Results |
| 08/15/03 |
NRC Approval - Request for Relief, RR-ENG-2-32,
From ASME Code Requirements for Approval of Half-Nozzle Repair/Replacement
for BMI Penetrations |
| 08/13/03 |
NRC Information Notice 2003-11: Leakage
Found on Bottom Mounted Instrumentation Nozzles |
| 08/08/03 |
Staff observation/assessment of half-nozzle
repair design calculations |
| 08/08/03 |
July 10, 2003 Telecon Summary |
| 08/08/03 |
June 26, 2003 Telecon Summary |
| 08/08/03 |
May 22, 2003 Telecon Summary |
| 08/01/03 |
Request for Relief, RR-ENG-2-35, From the
Requirements of the ASME Boiler and Pressure Vessel Code Concerning
Use of an Electro-Discharge Machining (EDM) Process (TAC NO. MB9655) |
| 08/01/03 |
Relief Request RR-ENG-2-33, Alternative
Flaw Characterization Criteria for Two Bottom-Mounted Instrument Penetration
Welds (TAC NO. MB9727) |
| 07/31/03 |
NRC Special Inspection Team Review and NRC
Staff Evaluation of South Texas Project, Unit 1, Reactor Pressure
Vessel Bottom-Mounted Instrumentation Penetration Leackage Investigation
and Repair Activities |
| 07/31/03 |
Summary of Exit Meeting for Special Inspection
of Bottom Mounted Instrumentation Nozzle Leakage in South Texas Project,
Unit (NRC Inspection Report 050000498/2003008) |
| 07/30/03 |
Request for Withholding Information from
Public Disclosure Per Section 2.790 of Title 10 of the Code of Federal
Regulations Concerning Bottom Mounted Instrumentation Forced Outage
(TAC No. MB8435) |
| 07/23/03 |
Revised Summary of ASME Code Calculations
Performed for Repair of Bottom Mounted Instrumentation Penetrations |
| 07/17/03 |
Supplemental Response to Request for Additional
Information Regarding Request for Alternative RR-ENG-2-32 (TAC No.
MB9696) |
| 07/17/03 |
Confirmation of 7/11 letter Updated Commitments
to Investigate and Repair Bottom Mounted Instrumentation Penetration
Indications |
| 07/15/03 |
May 29, 2003 Telecon Summary |
| 07/15/03 |
May 20, 2003 Telecon Summary |
| 07/11/03 |
Updated Commitment to Investigate and Repair
Bottom Mounted Instrumentation Penetration Indications. |
| 07/03/03 |
Response to Request for Additional Information
Regarding Request for Alternative RR-ENG-2-32 (TAC No. MB9696) |
| 07/02/03 |
South Texas Project Unit 1 Docket No. STN
50498 Summary of ASME Code Calculations Performed for Repair of Bottom
Mounted Instrumentation Penetrations |
| 07/01/03 |
Revised Response to Request for Additional
Information Regarding Request for Alternatives RR-ENG-2-35 |
| 06/27/03 |
NRC Approval - Request for Relief, RR-EING-2-30,
Revision 2, From ASME Code Requirements for Approval of ASME Section
XI Code Case N-516-2 for Underwater Welding of Core Barrel Locking
Tab |
| 06/26/03 |
Response to Request for Additional Information
Regarding Request for Alternatives RR-ENG-2-35 |
| 06/25/03 |
NRC Approval - Request for Relief, RR-ENG-2-31,
From ASME Code Requirements for Approval of ASME Section XI Code Cases
N-2143-1 and 2143-1 for the Second 10-Year Inspection Interval |
| 06/25/03 |
Request for Relief from ASME Section XI
Requirements Associated with Characterizing Flaws in Bottom Mounted
Instrumentation Penetration Welds (Relief Request RR-ENG-2-33) |
| 06/19/03 |
Request for Alternative to ASME Section
XI Requirements Associated with Half-Nozzle Repair/Replacement for
Bottom Mounted Instrument Penetrations (Relief Request RR-ENG-2-32) |
| 06/17/03 |
May 15, 2003 Telecon Summary |
| 06/17/03 |
May 8, 2003 Telecon Summary |
| 06/13/03 |
Request for Alternatives to ASME SEction
XI Requirements Associated eith Mechanical Processing of Thermally
cut Surfaces (Relief Request RR-ENG-2-35) |
| 06/11/03 |
Licensee Event Report 03-003, Bottom Mounted
Instrumentation Penetration Indications |
| 06/10/03 |
Relief Request RR-ENG-30, Rev. 2 |
| 06/02/03
|
Revised Request for Approval of ASME Section
XI Code Case N-516-2 for Underwater Welding of Core Barrel Locking
Tab (Relief Request RR-ENG-2-30) |
| 06/02/03 |
Bottom Mounted Instrumentation Forced Outage
Confidential Information |
| 05/28/03 |
NRC Press Release 03-069 - NRC to Hold Public
Meeting June 5 on Reactor Vessel Penetration Leakage at South Texas
Project |
| 05/27/03 |
April 17, 2003 - Telephone Conversation
Summary |
| 05/23/03 |
April 22, 2003 - Telephone Conversation
Summary |
| 05/22/03 |
South Texas Press Release - STP releases
preliminary inspection results |
| 05/20/03 |
Morning Report for May 20, 2003 |
| 05/15/03 |
Request for Approval of ASME Section IX
Code Cases 2142-1 and 2143-1 for the Second Ten-Year Inspection Interval
(Relief Request RR-ENG-2-31) |
| 05/12/03 |
Responses to NRC Questions regarding Bottom
Mounted Instrumentation Penetration Indications |
| 05/08/03 |
Request for Approval of ASME Section XI
Code Case N-516-2 for the Second Ten-Year Inservice Inspection Interval
(Relief Request RR-ENG-2-30) |
| 05/08/03 |
April 24, 2003 - Telephone Conversation
Summary |
| 05/05/03 |
NRC Press Release IV-03-021 - NRC to Conduct
Special Inspection at South Texas Project Unit 1 |
| 05/05/03 |
Charter for the NRC Special Inspection Team
at South Texas Project - Review of Licensee Actions Related to Reactor
Vessel Bottom Mounted Instrumentation Penetration Leakage |
| 04/28/03 |
NRC Press Release 03-051: NRC to hold Public
Meeting May 1 on Reactor Vessel Penetration Leakage at South Texas
Project |
| 04/24/03 |
Commitment to Investigate and Repair Bottom
Mounted Instrumentation Penetration Indications |
| 04/18/03 |
NRC Preliminary Notification PNO-IV-03-022:
Reactor Vessel Bottom Head Penetration Leakage |
| 04/14/03 |
NRC Event Report 39754 |
| 02/13/03 |
Response to RAI on Bulletin 2002-01 |
| 11/25/02 |
Bulletin 2002-01 RAI Letter |
| 09/11/02 |
30 Day Response to Bulletin 2002-02 |
| 05/16/02 |
60 Day Response to Bulletin 2002-01 |
| 04/02/02 |
15 Day Response to Bulletin 2002-01 |
| 03/18/02 |
NRC Bulletin 2002-01: Reactor
Pressure Vessel Head Degradation and Reactor Coolant Pressure Boundary
Integrity |
| 08/29/01 |
15 Day Response to Bulletin 2001-01 |
| 03/09/89 |
South Texas Response to GL 88-05 |
| 05/31/88 |
South Texas Response to GL 88-05 |
