ML20106A198
| ML20106A198 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 09/20/1992 |
| From: | Joshua Wilson TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20106A199 | List: |
| References | |
| NUDOCS 9209250171 | |
| Download: ML20106A198 (3) | |
Text
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J L VNson vte ru,sene s,-up noe.v ne September
, 1992 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:
In the Matter of
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Docket No. 50-327 Tennessee Valley Authority
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SEQUOYAll NUCLEAR PLANT (SQN) - UNIT 1 REACTOR VESSE.L SURVEILLANCE CAPSULE X ANALYSIS SUlt1ARY REPORT Enclosed is the summary report for SQN's Unit I reactor vessel surveillance capsule X as required by Appendix 11 to 10 CFR 50 and SQN Technical Specification (TS) Surveillance Requirement 4.4.9.1.2.
The i-enclosed report is provided as Westinghouse Electric Corporation, WCAP-13333, " Analysis of Capsule X From the Tennessee Valley Authority Sequoyah Unit No.- 1 Reactor Vessel Radiation Surveillance Program."
The survelliance capsule X is the third capsule to be removed from the fast-neutronfluenceof1.61x10gveillancecapsulereceivedanaverage SQN Unit i reactor vessel. The s neutrons per square centimeter over 5.27 effective full power years (EFPYs) of plant operation.
The surveillance capsule materials exhibit a more than-adequate upper-shelf energy level for continued safe-plant operation and are-expected to maintain an upper-shelf energy of no less than 50 foot-pounds throughout the lit'e (32 EFPY) of the vessel as required by 10 CFR 50, Appendix G.
Based on the results of the analysis of the surveillance capsule X, no t
changes in SQN's pressure temperature limit curves, Figures 3.4-2, 3.4-3, and 3.4-4 of the Unit 1 TSs, are required at this titue.
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U.S. Nuclear Regulatory Commission Page 2 September 20, 1992 Please di ect questions concerning this issue to D. V. Goodin at (615) 843-7734.
Sincerely, n
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,2_N ;./' J. L. Wilson Enclosure cc (Enclosure):
Mr. D. E. LaBarge, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 NRC Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379 Mr. B. A. Wilson, Project Chief U.S. Nuclear Regulatory Conmission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
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ENCLO9JRE 1.
WESTINGHv0SE ELECTRIC CORPORATION WCAP-13333 ANALYSIS OF CAPSULE X FROM THE TENNESSEE VALLEY AUTHORITY SEQUOYAH UNIT NO. 1
-REACTOR VESSEL RADIATION SUR7EILLANCE PROGPJJ!
(B88 920821 001)