ML20010F635
| ML20010F635 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek, Callaway  |
| Issue date: | 08/25/1981 |
| From: | Youngblood B Office of Nuclear Reactor Regulation |
| To: | Bryan J UNION ELECTRIC CO. |
| References | |
| NUDOCS 8109110019 | |
| Download: ML20010F635 (3) | |
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' Docket File' RHartfield, 71PA LRd1 Rdn R"attson AUG 2 5131 BJYounablood 14Johnston A0romerick OELO Docket Nos: STM 'in AR?
GEdison OIE (3)
STN 50 483 MRushbrook bec:
- P.Vollmer NRC/PnR ACRS (16)
Mr. John K. Bryan
. THurley
?*r.GlennbP@ ester Vice President
'/ ice President - Nuclear Union Electric Comnany Vainsas Gas and Electric Company 1001 Gratiot Street 201 North Market Street Post Office Box 140 Post Office Box 208 St. Louis, Missouri 63166 Wichita, Kansas 67201 4
naar Centlemen:
Subject:
SNUPPS FSAR - Pequest for Additional Information:
Core Themal Hydraulics As a result of our review of your application for operatino licenses we find that we need additional infomation regardino the SNUPPS FSAR. The snecific infomation required is as a result of the Core Perfomance Rranch review and is listed in the Enclosure.
To maintain our licensing review schedule for the SNUPPS FSAR. we will need a response to the enclosed request by August 31, 1981.
If you cannot meet this date, olease'infom us within seven days after receipt of this letter of the date you plan to submit your responses so that we m3y review our schedule for any necessary changes.
Please note that a draft cony of this question was provided to the SNUPPS staff on August 17, 1 % 1.
Please contact, Dr. G. E. Edison, SNUPPS Licensing Project Manager, if you desire any discussion or clarification of the enclosed request.
S!ncerely, i m, Original aigned by:
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P. J. Youngblood l
B. J. Youngblood, Chief v
c Licensino Branch No.1 J
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Division of Licensing o
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Enclosure:
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Deauest for Additional
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OFFICIAL RECORD COPY usom =-mw t sac ronu ais oo-so3 Nacu oao
1 Mr. J. K. Bryan Mr. Glenn L. Koester Vice President - Nuclear Vice President - Nuclear Union Electric Company Kansas Gas and Electric Company P. O. Box 149 201 North arket Street St. Louis, Missouri 63166 P. O. Box s08 Wichita, Kansas 67231 cc: Gerald Charnoff, Esq.
Shaw, Pittman, Potts, Dr. Vern Starks Trowbridge & Madden Route 1, Box 863 1800 M Street, N. W.
Ketchikan, Alaska 99901 Washington, D. C.
20036 Mr. Will am Hansen Kansas City Power & Light Company U. S. Nuclear Regulatory Commission ATTN:
Mr. D. T. McPhee Resident Inspectors Office Vice President - Production RR #1 1330 Baltinore Avenue Steedman,liissouri 65077 Kansas City, Mi 'ouri 64141 Ms. Treva Hearn, Assistant General Counsel Mr. Nicholas A. Petrick Missouri Public Service Commission Executive Director, SNUPPS P. O. Box 360 5 Choke Cherry Road Jefferson City, Missouri 65102 Rockville, Maryland 20850 Jay Silberg, Esquire Mr. J. E. Birk Shaw, Pitbnan, Potts & Trowbridge Assistant to the General Counsel 1800 M Street, N. W.
Union Electric Company Washington, D. C.
20036 St. Louis, Missouri 63166 Mr. D. F. Schnell Kansans for Sensible Energy Manager - Nuclear Engineering P. O. Box 3192 Union Electric Company Wichita, Kansas 67201 P. O. Box 149 St. Louis, Missouri 63166 Ms. Mary Ellen Salava Route 1, Box 56 Mr. Tom Vandel Burlington, Kansas 66839 Resident Inspector / Wolf Creek NPS c/o USNRC Eric A. Eisen, Fsq.
P. O. Box 1407 Birch, Horton, Bittner & Monroe Emporia, Kansas 66801 1140 Connecticut Avenue, N. W.
Mr. Michael C. Keener Wolf Creek Project Director State Corporation Commission Ms. Handa Christy State of Kansas 515 N. 1st Street Fourth Floor, State Office Building Burlington, Kansas 66839 Topeka, Kansas 66612 1
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AUG 2 01581 Enclosure 492.0 Thermal Hydraulics Section/ Core Performance Branch 492.8 Standard format and content of Safety Analysis Reports, Regulatory Guide 1.70, states tnat ir Chapter 4 of the SAR
...the applicant should provide an evaluation and sup-porting information to establish the capability of tne reactor to perform its safety functions throughout its design lifetime und r all normal operation modes..."
Are the analyses presented in Section 4.4 representative of the initial core only or have future cycles been analyzed? Provide a discussion of how power distributions for future cycles are considered in the FSAR analyses.
Is there any assurance that the Callaway Units cah-operate at tne licensed power le<el without excessive DNB trips tnroughout future cycles? Will revisions to the design methodology be required in order to maintain sufficient thB'rmal margin?
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