ML20195C764
| ML20195C764 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 11/13/1998 |
| From: | Harrison J NRC (Affiliation Not Assigned) |
| To: | NRC (Affiliation Not Assigned) |
| References | |
| NUDOCS 9811170213 | |
| Download: ML20195C764 (5) | |
Text
.
-c November 13, 1998 MEMORANDUM TO:
File FROM:
John Harrison, Project Manager Original signed by Project Directorate 1-3 Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation
SUBJECT:
SEABROOK REACTOR PRESSURE VESSEL INTEGRITY CALCULATIONS AND LIMITING MATERIAL CLARIFICATION l
I The attached pages were faxed to Jim Peschel, Nuclear Licensing Manager of North Atlantic Energy Service Corporation on Friday, November 13,1998, in preparation for a telephone conference that will be scheduled next week.
The information in the attached is based on information obtained from the licensee and also includes specific subjects to be discussed with the licensee. Therefore, this memorandum and its attachment contain no draft or predecisional information per the guidance of Office Letter 106, Revision 1 - Release of NRC Draft or Predecisional Documents and Information.
l Docket No. 50-443
Attachment:
As stated DISTRIBUTION
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NUCLEAR REGULATORY COMMISSION 2
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FACSIMILE TRANSMISSION DATE: 1) l ~$ q g bIm eghg\\
TO:
(60'3)775-774O TEL NO:[663)773-7)q4 FAX NO:
FROM:
John Harrison l
U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF NUCLEAR REACTOR REGULATION 1
FAX NO.:
(301)415-2102 TEL NO: (301) 415-3199 l
PAGE 1 of 2 PAGES REMARKS:
i l
We.
need to schec ule a con-[erence Celi to discuss t.h aMached.
1 4
4 e
i o p usamb i
t
The following is an edited excerpt of an E-mail received from Andrea Lee of EMCB on 11/2/98:
The reactor vessel integrity d'atabase (RVID), which performs integrity calculations for all of the RPV beltline materials in order to determine the limiting material, was recently updated. As a result, we would like to discuss the following.with the licensee:
The RVID calculations show that plate R1806-1 may be the limiting material (highest RTpts) and not plate R1808-3 as reported by the licensee.
A June 5,1998 surveillance report shows that the chemistry factor calculated from surveillance data for plate R1808-3 may have only used the transversely oriented plate surveillance data and not the full set of data which includes the longitudinally oriented data. The result of the calculations using all of the data (shown on page 4 of 4) may result in a higher RTpts value. The data used for the beltline plates (other than R1808-3) are from the licensee's November 20, 1995 response to GL 92-01, Rev.1, Supp.1.
We need to have the licensee confirm the information on the docket.
O
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