ML20045B234
| ML20045B234 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 06/08/1993 |
| From: | George Thomas DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TAC-M85081, TAC-M85082, NUDOCS 9306170003 | |
| Download: ML20045B234 (2) | |
Text
_.
O Bo Shvppingport PA15077-0004 (412} 393-5206 M12l 643-8%9 FAX i
GEORGE S. THOMAS
~j Dinsion vece President r
Mclear Servces wcear Power owmon June 8, 1993 U.
S.
Nuclear Regulatory Commission Attn:
Document Control Desk Washington, DC 20555
Subject:
Beaver Valley Power Station, Unit No. l'and No. 2 BV-1 Docket No. 50-334, License No. DPR-66 BV-2 Docket No. 50-412, License No. NPF-73
{
Proposed Operating License Change Request Nos. 205/71 Additional Information (TAC Nos. M85081/M85082) i l
By letter dated December 30,
- 1992, Duquesne Light Company submitted Technical Specification Change Request (TSCR) Nos. 205/71 which would permit steam generator tube sleeving in accordance with the Westinghouse and the Babcock and Wilcox (B&W) processes. - The B&W
'l process involves the methodology described in an NRC approved topical-report.
The Westinghouse process'would be performed in accordance-with the methodology detailed in WCAP-13483, Revision 1,_" Beaver-Valley Units 1 and 2, Westinghouse Series 51 Steam Generator Sleeving i
- Report, Laser Welded Sleeves,"
for which we requested approval.
g During the TSCR review process, we have been in contact with the NRCE
(
staff to address their - various concerns related to. approving the r
Westinghouse methodology.
In discussions with the NRC staff, it was stated that the NRC position for evaluating the steam generator sleeve imperfection depth l
requires that Westinghouse use design criteria in lieu of repair criteria.
In using the design criteria, Westinghouse has' determined that the sleeve repair / plugging limit is reduced from the 31 percent provided in-our original submittal to 25 percent..Therefore, this letter requests that the NRC replace the previous-value with this new'
+
value and continue their review-of the ' Westinghouse methodology accordingly.
l Our response to an NRC request for additional-information on this l
subject was provided to document discussions with NRC staff members-on March 10, 1993.
Please note that this letter was dated-incorrectly and should_ have been_ dated March 12, 1993,- instead of March 12,-1992.
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t 9306170003 930608 PDR ADDCK'05000334 PDR p
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Beayer Valley Power Station, Unit No. 1 and No. 2 NV-1 Docket No. 50-334, License No. DPR-66 BV-2 Docket No. 50-412, License No. NPF-73 Proposed Operating License Change Request Nos. 205/71 l
Additional Information l
(TAC Nos. M85081/M85082)
L Page 2 l
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I If there are any questions pertaining to this matter, please contact G.
S. Sovick at (412) 393-5211.
l Sincerely, W
ADS George S.
Thomas l
cc:
Mr.
L.
W.
Rossbach, Sr. Resident Inspector Mr.
T.
T. Martin, NRC Region I Administrator Mr.
G.
E.
Edison, Project Manager Mr.
M.
L.
Bowling (VEPCO) l l
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