ML20029B361
| ML20029B361 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 02/28/1991 |
| From: | John Hickman Office of Nuclear Reactor Regulation |
| To: | Kovach T COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20029B362 | List: |
| References | |
| IEB-90-002, IEB-90-2, TAC-79439, NUDOCS 9103070105 | |
| Download: ML20029B361 (2) | |
Text
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february 28, 1991 Docket No. 50-373 0151R19Uf.ON
- locket il O NRC & Local POR5 Mr. Thomas J. Kovach PDill-2 */f DDoger, 13A2 Nucioar Licensing Manager JZwolintAl CMoore Commonwealth Edison Company-Suite 300 JHictmin OGC OI'US West 111 ACRS (10)
[ Jordan, MNDB 3701 1400 OPUS Place Plant iile AAttard, 8f23 Downers Grove, Illinois 60515 W5hafer, Rlll
Dear Mr. Kovach:
SUBJEC1:
SAfLTY EVALVATION 50R LASALLf. UNil 1 - FUEL CHANNEL EVALUA110N FOR CYCLE b (TAC NO. 79439)
By letter dated April 26, 1990, Commonwealth Edison Company (CLCo) responded to NRC Bulletin 90-02, " loss of Thermal Margin Caused by Channel Box Bow,"
In a subsequent teleconference with the NRC on November 26, 1990, CECO committed to provide additional information regarding the actions that were being taken to account for the impact on Minimum Critical Power kallo (MCPR) of those residual used channel boxes scheduled for reuse in the upcoming Cycle 5 for LaSalle Unit 1.
Your response dated January 7, 1991, indicated that 224 channel boxes are intended for reuse in the upcomin0 Cycle.
You nit,o described the disposition of these channel boxes in the core and the actions taken to assure complianca with the technical specifications regarding the thermal limits.
We have reviewed your ref,ponse and find that it satisfactorily resolves the issues discussed in NRC Bulletin 90-02 for Cycle 5 at LaSalle Unit 1.
However, any application of your analysis to future channel reuse must be evaluated on a cycle specific basis.
Should you have any questions or comments, please contact me at (301) 492-3017.
Sincerely, W T) Nd @ @ N John D. Hit.kman, Project Manager Project Directorate 111-2 Division of Reactor Projects lil/IV/V Office of Nuclear Reactor Regulation
Enclosure:
Safety Evaluation I
cc w/ enclosure:
See next page QF C NA i 1-2
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Mr. Thomas J. Kovach LaSalle County Station Comonwealth Edison Company Unit Nos.1 and 2 CC:
Phillip P. Steptoe, Esquire Robert Cushing Sidley and Austin Chief, Public Utilities Division One First National Plaza 1111nois Attorney General's Office Chicago, Illinois 60603 100 West Randolph Street Chicago, Illinois 60601 Assistant Attorney General 100 West Randolph Street Michael 1. Miller, Esq.
Suite 12 Sidley and Austin Chicago, Illinois 60601 One First National Plaza Chicago, Illinois 60690 Resident inspector /LaSalle, HPS U.S. Nuclear Regulatory Commission Rural Route No. 1 P. O. Box 224 Marseilles, Illinois 61341 Chairman LaSalle County Board of Supervisors LaSalle County Courthouse Ottawa, Illinois 61350 Attorney General 500 South 2nd Street Springfield, Illinois 62701 Chairman Illinois Commerce Commission Leland Building 527 East Capitol Avenue Springfield, Illinois 62706 Illinois Department of Nuclear Safety Office of Nuclear Facility Sciety 1035 Outer Park Drive Springfield, Illinois 62704 Regional Administrator, Region 111 U. S. Nuclear Regulatory Commission 799 Roosevelt Road Bldg. #4 Glen Ellyn, Illinois 60137 Robert Neumann Office of Public Cg:nsel State of 1111 noir Center 100 W. Randolph Suite 11 300 Chicago, Illinois 60601
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