ML20206Q617

Forwards RAI Re 990301 & 10 Ltrs Re Proposed TS Changes to Calibr Frequency of Recirculation Flow Transmitters from Once Every 184 Days to Once Every 18 Months.Util Responses Should Be Provided within 30 Days of Ltr Date

ML20206Q617
Person / Time
Site:	Cooper
Issue date:	05/17/1999
From:	Lawrence Burkhart NRC (Affiliation Not Assigned)
To:	Horn G NEBRASKA PUBLIC POWER DISTRICT
References
TAC-MA4882, NUDOCS 9905190179
Download: ML20206Q617 (4)

Text

{{#Wiki_filter:- 1 y May 17,1999

Mr. G. R. Horn

- Sr. Vice President of Energy Supply --Nebraska Public Power District 141415th Street ' Columbus, NE 68601

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - COOPER NUCLEAR STATION (TAC NO. MA4882)

Dear Mr. Horn:

In a letter dated March 1,1999, as supplemented by letter dated March 10,1999, Cooper Nuclear Station submitted a proposed change to the technical specifications. The proposal would change the calibration frequency of the recirculation flow transmitters from once every 184 days to once every 18 months. The staff requires additionalinformation to complete its review and our request for additional information is enclosed. These questions were discussed with Larry Newman of yoiJr staff on May 13,1999. 'It was mutually agreed that the responses { would be provided within 30 days of the date of this letter.' If circumstances result in the need to revise the schedule, please call me at the earliest opportunity. I . Sincerely,- ] ORIG'. SIGNED BY Lawrence J. Burkhart, Project Manager, Section 1 1 Project Directorate IV & Decommissioning Division of Licensing Project Management j/ Office of Nuclear Reactor Regulation '/ Docket No. 50-298

Enclosure:

As etated cc w/ encl:'See next page DISTRIBUTION: 4 1 /f. - S.' Black ACRS OGC (15B18) K. Brockman, RIV DOJUMENT NAME: A:\\ COOPER \\RAl4882.WPD ' To recewe a cop r of this document, bdicate in the bon C-Copy w/o attachment / enclosure E-Copy with attachment / enclosure N = No copy OFFICE PM/PDIV-1 ' E LA/PDIV-1 E SC/PDIV-1 ( NAME LBurkhart:db@ CJamerson h RGramm b

DATE, f/ lq /99 g/ /7 /99 [/

$/ \\1 /99 j l OFFICIAL RECORD COPY 9905190179 990317 [ PDR ADOCK 05000298 0 P pm

p ne: UNITED STATES -{o j NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 30866-0001

• s

/ May 17, 1999 Mr. G. R. Horn Sr. Vice President of Energy Supply Nebraska Public Power District 1414'15th Street Columbus, NE 68601

SUBJECT:

COOPER NUCLEAR STATION - REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MA4882)

Dear Mr. Horn:

In a letter dated March 1,1999, as supplemented by letter dated March 10,1999, Cooper Nuclear Station submitted a proposed change to the technical specifications. The proposal would change the calibration frequency of the recirculation flow transmitters from once every 184 days to once every 18 months. The staff requires additional information to complete its review and our request for additional information is enclosed. These questions were discussed with Larry Newman of your staff on May 13,1999. It was mutually agreed that the responses would be provided within 30 days of the date of this letter. If circumstances result in the need to revise the schedule, please call me at the earliest opportunity. Sincerel / / awrence J. Bur,ad, Project Manager, Section 1 Project Directo ate IV & Decommissioning Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-298

Enclosure:

As stated cc w/ encl: See next page 4 I i

4 Cooper Nuclear Station cc: j (> Mr. John R McPhall, General Counsel Nebraska Public Power District Lincoln Electric System P. O. Box 499 ATTN: Mr. Ron Stoddard Columbus, NE 68602-0499 1040 O Street Box 80869 ' ATTN: Mr. J. H. Swailes Lincoln, NE 68501 Vice President of Nuclear Energy - P. O. Box 98 MidAmerican Energy Brownville, NE 68321 ATTN: Dr. William D. Leech Manager-Nuclear Randolph Wood, Director 907 Walnut Street Nebraska Department of Environmental P. O. Box 657 Control Des Moines, IA 50303-0657 P. O. Box 98922 Lincoln, NE 68509 8922 Nebraska Public Power District ATTN: Mr B. L. Houston, Nuclear Mr. Larry Bohlken, Chairman Licensing & Safety Manager Nemaha County Board of Commissioners P. O. Box 98 Nemaha County Courthouse Brownville, NE 68321 1824 N Street Auburn, NE 68305 Senior Resident inspector U.S. Nuclear Regulatory Commission P. O. Box 218 Brownville, NE 68321 Regional Administrator, Region IV-U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington,TX 76011 Ms. Cheryi Rogers, LLRW Progre n Manager Division of Radiological Health Nebraska Department of Health 301 Centennial Mall, South P. O. Box 95007 Lincoln, NE 68509-5007 Mr. Ronald A. Kucera, Department Director of hiergovernmentai Cooperation - Department of Natural Resources P.O. Box 176 . Jefferson City, MO 65102 May 1999

REQUEST FOR ADDITIONAL INFORMATION . COOPER NUCLEAR STATION (CNS) PROPOSED CHANGES TO CNS TECHNICAL SPECIFICATIONS REACTOR PROTECTION SYSTEM INSTRUMENTATION APRM IAVERAGE POWER RANGE MONITOR 1 NEUTRON FLUX - HIGH (FLOW BIASED) CALIBRATIOil FREQUENCY 1. In your submittal dated March 1,1999, you state that " site-specific drift datapoints for these transmitters are limited, due to the past test fre'pency and the limited collection of past datapoints, the datapoints that are available are consistent with the calculatad drift j value." i Despite the fact that the drift data may be limited, it will be useful in evaluating the proposed change. Please provide the site specific drift data that is available. 2. On sheet 18 of 65 of your atterinment to your March 10,1999, letter, at the bottom of the page you state that "since the flow units are checked every month, it is assumed that the above drift is applicable for calculation." Please describe the " check" that is performed monthly. Is this check a technical specification requirement? What equipment is part of this check? 1 i Enclosure I ( ..-x ,.e su ,.,.w.=%.p*=

• =r.m.-- w e < w a-
• = ~ ~
• }}