ML20091H040
| ML20091H040 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 12/12/1991 |
| From: | Schnell D UNION ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20091H041 | List: |
| References | |
| ULNRC-2532, NUDOCS 9112200012 | |
| Download: ML20091H040 (3) | |
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$0ecember12, 1991 U.S. Nuclecr Regulatory Ccanission Attnt Document Control Desk Mall Station P1-137 Washintion, D.C.
20555 ULNHC-2532 Gentlement DOCKET NUMBER 50-403 CALLAWA7 PIANT - CYCLE 5 QQER_QPE]BTING L1]i1TS REPORT
References:
- 1) ULNRC-2323 dated November 14, 1990
- 2) ULNRC-2360 dated January 31, 1991
- 3) ULNRC-2379 dated March 19, 1991
- 4) UIMC-2513 dated November 13, 1991 Reference 1 transmitted the Callaway Plant Cycle 5 Core Operating Limits Report (COLR).
References 2 and 3 revised the W(Z) functions and transmitted the updated W(Z) curves to NRC, respectively, as Revision 1 of the Callaway Cycle 5 COLR.
Reference 4 provided re/isions to rigure 2 and Section 2.4.1 of the callaway Cycle 5 COLR, representing Revisions 2 and 3 of the COLR.
Attached please find Revisions 4 and 5 to Soutions 2.1.1 and 2.1.2 of the COLR.
Revision 5 represents the latest approved values for the end of cycle life (EOL) Moderator Temperature Coef ficient (MTC) limit and - for the 300 ppm MFC surveillance limit.
Revision 4 represents interim changes to these same limits, later superseded by the Revision 5 values.
Revision 4 is attached for completeness only.
The Revision 4 HTC limit changes were a result of the utilization of existing FSAR Chapter 15 analysis margin.
The Revision S MTC limit changes roquired evaluations and sensitivity studies of the effects of using a more positive Moderator Density 9112200012 911212
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PDR ADOCK 05000403 p-PDR g
U.S. Nucloor R gulatory Conaiccion Page 2 Coefficient (MDC) in the FSAR Chapter 15 analyses.
It i
van. confirmed that the results presented in the FSAR remain valid.
This will be documented in the next annual FSAR update and 10CFR50.59 summary report.
Should you have any questions concerning this information, please contact us.
Very truly yours, fjm '
Donald F. Schnell GGY/ dis Attachment l -
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t cc T. A. Baxter, Esq.
Shaw, Pittman, Potts & Trowbridge
-2300 N.-Street, N.W.
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Washington, D.C. 20037 Dr. J. O.-Cermak CFA, Inc.
18225-A Flower Hill Way Caithersburg, MD 20079-5334
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R. C. Knop Chief, Reactor Project Branch 1-
'U.S. Nuclear Regulatorj' Commission Region III 799 Roosevelt Road G1en Ellyn, Illinois 60137 Bruce Bartlett Callaway Resident. Of fice U.S. Nuclear Regulatory Commission RR#1
-Steedman, Missouri 65077 l
l J.-R. Hall ( P. )
Office'Of Nuclear Reactor Regulation l
U.S. Nuclear Regulatory Commission 1 White Flint, North, Mail Stop-13E21 l
11555 Rockville Pike l
Rockville, MD 20852 Manager, Electric Department Missouri Public Service Conmission P.O. Box 360-Jefferson City, MO 65102.
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