ML20059A410
| ML20059A410 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 12/23/1993 |
| From: | Burski R ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-88-011, IEB-88-11, W3F1-93-0371, W3F1-93-371, NUDOCS 9312300153 | |
| Download: ML20059A410 (2) | |
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I December 23, 1993 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C. 20555 l
Subject:
Waterford 3 SES 1
Docket No. 50-382 License No. NPF-38 NRC Bulletin 88-11 Pressurizer Surge Line Thermal Stratification Gentlemen:
As requested by your letter dated June 22, 1993, this letter provides the final status of the Waterford 3 activities required by NRC Bulletin 88-11.
Waterford 3 letter W3F1-92-0135, dated May 5, 1992, provided an interim status of these actions.
Specifically, the letter reported that Waterford 3 had completed all actions necessary to address Bulletin items 1.a and 1.b (action 1.c is not applicable to Waterford 3).
In addition,' the letter reported, based on a review of the analysis methodology and the specific 4
geometrical input parameters, that the Waterford 3 surge line was bounded.
i by the Combustion Engineering Owners Group (CE0G) generic bounding analysis to examine the effects of thermal stratification and thermal striping on -
surge line integrity (CEN-387-P, Revision 1).
,a In accordance with the commitment made in our May 5, 1992 letter, Entergy 0perations has updated Waterford 3 stress and fatigue analyses and design specifications to' reflect the loads resulting from thermal stratif.ication as required by Bulletin item 1.d.
The analyses demonstrated compliance with applicable ASME Code requirements.
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. NRC Bulletin 88-11 Pressurizer Surge Line Thermal Stratification-i W3F1-93-0371 Page 2 December 23, 1993 Finally, the current version of the Waterford 3 in-service inspection plan includes most of the welds on the pressurizer surge line. With regard to the staff recommendation that licensees perform volumetric examinations of -
critical elbow components, Entergy Operations intends to_ continue monitoring the efforts of the ASME Task Group on ISI_ Optimization in this area.
Recommendations or changes that result from this effort will:be evaluated for implementation at Waterford 3.
To summarize, Entergy Operations has completed all of the actions required by NRC Bulletin 88-11.
Taken together, these activities indicate that the integrity of the Waterford 3 pressurizer surge line satisfies ASME Section III criteria for the life of the plant, taking-into account the effects of thermal stratification.
If you have any questions related to this matter, please contact. T.W. Gates at (504) 739-6697.
Very truly yours, I
M R.F. Burski Director
-j Nuclear Safety RFB/TWG/ssf cc:
J.L. Milhoan, NRC Region IV D.L. Wigginton, NRC-NRR R.B..McGehee N.S. Reynolds NRC Resident inspectors Office J