ML15261A253
| ML15261A253 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 05/06/1999 |
| From: | Labarge D NRC (Affiliation Not Assigned) |
| To: | NRC (Affiliation Not Assigned) |
| References | |
| IEB-88-008, IEB-88-8, NUDOCS 9905110135 | |
| Download: ML15261A253 (4) | |
Text
May 6, 1999 LICENSEE:
Du nergy Corporation FACILITY:
Oconee Nuclear Station, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF THE APRIL 29,1999, MEETING ON THE LICENSEE'S REVISED RESPONSE TO BULLETIN 88-08 On April 29, 1999, the NRC staff met at the NRC headquarters in Rockville, Maryland, with representatives of the Duke Energy Corporation to discuss the licensee's revised response to NRC Bulletin 88-08, "Thermal Stresses in Piping Connected to the Reactor Coolant System."
The revised response is dated February 26, 1998, and was submitted to address new information on thermal stratification that is part of the ongoing program to address issues related to the Oconee Nuclear Station, Unit 2, High Pressure Injection (HPI) injection line weld failure leak that occurred on April 21, 1997. During its review of that submittal, the staff generated a request for additional information (RAI) dated February 22, 1999. The licensee's planned response to the RAI was also discussed during the meeting. Enclosure 1 is a list of the individuals who attended the meeting.
The topics discussed included a summary of the results of the engineering analysis that has been performed on the HPI injection and makeup piping based on data obtained during operation of the three Oconee Nuclear Station units, the thermal stratification phenomena that has been discovered as a result of Computational Fluid Dynamics analysis of the HPI makeup nozzles that has been performed by Framatome Technologies Incorporation, the results of the analysis into the causes of the weld failure and cracks in the HPI injection and makeup piping, current HPI injection and makeup piping monitoring program and future plans, fatigue damage scenario results, nozzle damage mitigation strategy, and information related to the RAI response. The licensee will submit the RAI response and related information as soon as staff comments are incorporated.
Original signed by:
David E. LaBarge, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287
Enclosure:
Attendance List cc w/encl: See next page Distribution:
E-Mail MHartzman Hard Copy SCollins/RZimmerman MSatorius, EDO (MAS)
CDocket-ileij JZwolinski/SBlack COgle, RII PUBLIC JZimmerman TMartin (SLM3)
PD 11-1 R/F HBerkow DLaBarge O
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DOCUMENT NAME: G:\\MTS0429.WPD.
To receive a copy of this document, indicate in the box C=Copy w/o attachment/enclosure E=Copy with attachment/enclosure N= No copy OFFICE PDl- /PDII-1/L-A PDII-1/SC l/D NAME DLa rge:cn CHawes REmch /
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 6, 1999 LICENSEE:
Duke Energy Corporation FACILITY:
Oconee Nuclear Station, Units 1, 2, and 3
SUBJECT:
SUMMARY
OF THE APRIL 29, 1999, MEETING ON THE LICENSEE'S REVISED RESPONSE TO BULLETIN 88-08 On April 29, 1999, the NRC staff met at the NRC headquarters in Rockville, Maryland, with representatives of the Duke Energy Corporation to discuss the licensee's revised response to NRC Bulletin 88-08, "Thermal Stresses in Piping Connected to the Reactor Coolant System."
The revised response is dated February 26, 1998, and was submitted to address new information on thermal stratification that is part of the ongoing program to address issues related to the Oconee Nuclear Station, Unit 2, High Pressure Injection (HPI) injection line weld failure leak that occurred on April 21, 1997. During its review of that submittal, the staff generated a request for additional information (RAI) dated February 22, 1999. The licensee's planned response to the RAI was also discussed during the meeting. Enclosure 1 is a list of the individuals who attended the meeting.
The topics discussed included a summary of the results of the engineering analysis that has been performed on the HPI injection and makeup piping based on data obtained during operation of the three Oconee Nuclear Station units, the thermal stratification phenomena that has been discovered as a result of Computational Fluid Dynamics analysis of the HPI makeup nozzles that has been performed by Framatome Technologies Incorporation, the results of the analysis into the causes of the weld failure and cracks in the HPI injection and makeup piping, current HPI injection and makeup piping monitoring program and future plans, fatigue damage scenario results, nozzle damage mitigation strategy, and information related to the RAI response. The licensee will submit the RAI response and related information as soon as staff comments are incorporated.
David E. LaBarge, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287
Enclosure:
Attendance List cc w/encl: See next page
Oconee Nuclear Station cc:
Ms. Lisa F. Vaughn Mr. J. E. Burchfield Legal Department (PBO5E)
Compliance Manager Duke Energy Corporation Duke Energy Corporation 422 South Church Street Oconee Nuclear Site Charlotte, North Carolina 28201-1006 P. 0. Box 1439 Seneca, South Carolina 29679 Anne Cottington, Esquire Winston and Strawn Ms. Karen E. Long 1400 L Street, NW.
Assistant Attorney General Washington, DC 20005 North Carolina Department of Justice Mr. Rick N. Edwards P. 0. Box 629 Framatome Technologies Raleigh, North Carolina 27602 Suite 525 1700 Rockville Pike L. A. Keller Rockville, Maryland 20852-1631 Manager - Nuclear Regulatory Licensing Manager, LIS Duke Energy Corporation NUS Corporation 526 South Church Street 2650 McCormick Drive, 3rd Floor Charlotte, North Carolina 28201-1006 Clearwater, Florida 34619-1035 Mr. Richard M. Fry, Director Senior Resident Inspector Division of Radiation Protection U. S. Nuclear Regulatory North Carolina Department of Commission Environment, Health, and 7812B Rochester Highway Natural Resources Seneca, South Carolina 29672 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Virgil R. Autry, Director Division of Radioactive Waste Management Mr. Steven P. Shaver Bureau of Land and Waste Management Senior Sales Engineer Department of Health and Environmental Westinghouse Electric Company Control 5929 Carnegie Blvd.
2600 Bull Street Suite 500 Columbia, South Carolina 29201-1708 Charlotte, North Carolina 28209 County Supervisor of Oconee County Mr. William R. McCollum, Jr.
Walhalla, South Carolina 29621 Vice President, Oconee Site Duke Energy Corporation P. 0. Box 1439 Seneca, South Carolina 29679
ATTENDANCE RECORD PURPOSE: Discuss revised response to Bulletin 88-08 Date: 4/29/99 regarding HPI leak evaluation NAME AFFILIATION D. LaBarge NRR/PD 11-1 Mark Hartzman NRR/DE/EMEB Tim Brown Duke Power/Oconee Bret Boman Framatome Technologies J. Michael Davis Duke Energy/General Office Ed Burchfield Duke Energy/Oconee Enclosure