ML20059B983
| ML20059B983 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 08/13/1990 |
| From: | Leeds E Office of Nuclear Reactor Regulation |
| To: | Frizzle C YANKEE ATOMIC ELECTRIC CO. |
| Shared Package | |
| ML20059B985 | List: |
| References | |
| IEB-88-011, IEB-88-11, TAC-72141, NUDOCS 9008300205 | |
| Download: ML20059B983 (3) | |
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.dochtN,0.50-309 August 13, 1990
.Mr C. D. Frizzle, President Maine Yankee Atomic Power Company 83 Edison Drive Augusta, Maine 04336
Dear Mr. Frizzle:
I
SUBJECT:
NRC BULLETIll !!O. 88-11, " PRESSURIZER SURGE LINE THERMAL j
STRATIFICATION" - EVALUATION OF COPDUSTION ENGINEERING OVNERS GROUP B0UNDING ANALYSIS (TAC NO. 72141)
By letters dated March 6,1989 and July 21, 1989, Maine Yankee responded to Item 1.b of HRC Bulletin No. 88-11, " Pressurizer Surge Line Thermal Strati-fication." The letters stated that Maine Yankee supported the bounding analysis performed by the Combustion Engineering Owners Group (CE00) for CEOG plant surge lines. The analysis indicated that the integrity of the pressurizer surge line (PSL) satisfies the ASME Section III Code criteria for the life of the plant, taking into account the effects of thermal stratification.
The staff has completed its review of the CEOG bounding analysis and finds i
that although sufficient information has been provided to justify continued plant operation until Maine Yankee completes 'its final report in accordance with the schedule delineated by the Bulletin, adequate bases have not been provided for the staff to conclude that the PSL meets all appropriate Code limits for 40-year plant life. A copy of the evaluation, which was sent to the CE0G, is enclosed for your information. Also enclosed is the staff's evaluation of CE's response to items discussed during a September 1989 audit at CE's office.
Licensees may work collectively through the CE0G effort to address the issues identified in the evaluation, but each licensee is responsible to en;sre that the Bulletin requested actions are fully implemented at their respective plant, e
The staff will assess the conformance of the PSL to aap11 cable Codes and regulatory requirements for 40-year plant life when tie CEOG report regarding Item 1.d of the Bulletin is submitted.
j Sincerely, Original signed by:
Eric J. Leeds, Project Maneger Project Directorate I-3 Division of Reactor Projects 1/11 Office of Nuclear Reactor Regulation
Enclosures:
As stated l
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- Mr. C. D. Frizzle Maine Yankee cc:
Mr. Charles B. Brinkman Mr. G. D. Whittier, Manager Manager - Washington Nuclear Nuclear Engineering and Licensing Operations Maine Yankee Atomic Power Comnany Cembustion Engineering, Inc.
83 Edison Drive i
12300 Twinbrook Parkway, Suite 330 Augusta, Maine 04336 Rockville, Maryland 20852 Mr. Robert W. Blackmore slohn A. Ritsher, Esquire Plant Manager Ropes & Gray Maine Yankee Atomic Power Company 225 Franklin Street P.O. Box 408 Boston, Massachusetts 02110 Wiseasset, Maine 04578 l
State Planning Officer Executive Department 189 State Street Augusta, Maine 04330 Dr. E. T. Boulette
.Vice President - Operations Maine Yarkee Atomic Power Company P. O. Box 408 Wiscasset, Maine 04578 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Reed King of Prussia, Pennsylvania 19406 First Selectman of Wiscasset Municipal Building U.S. Route 1 Wiscasset, Maine 04578 Mr. Charles S. Marschall Resident Inspector Maine Yankee Atomic Power Station U.S. Nuclear Regulatory Commission P. O. Box E Wiscasset, Maine 04578 Mr. P. L. Anderson, Project Manager Yankee Atomic Electric Company 580 Main Street Bolton, Massachusetts 01740-1398
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