ML20236P305

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Forwards Rev 1 to WCAP-11374, Analysis of Capsule U from Callaway Unit 1 Reactor Vessel Radiation Surveillance Program. Rev Corrects Plant Heatup & Cooldown Operating Limit Curves & Reg Guide 1.99 Reactor Trip NDT Calculations
ML20236P305
Person / Time
Site: Callaway Ameren icon.png
Issue date: 11/10/1987
From: Schnell D
UNION ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20236P310 List:
References
RTR-REGGD-01.099 ULNRC-1675, NUDOCS 8711170234
Download: ML20236P305 (2)


Text

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' 1901 Gratiot Street, St. Louis

^ Donald F. Schnell November! 10',

1987

.U.S.

Nuclear Regulatory Commission

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' ATTN:. Document Control Desk LWashington, D.C.

20555 Gentlemen:

ULNRC-16 75 DOCKET NO. 50-483 CALLAWAY. PLANT REACTOR VESSEL SURVEILLANCE-CAPSULE TEST REPORT

References:

1)

ULNRC-1469, dated March 18, 1 M7

~2)

ULNRC-15 4 4, dated July 1,.198 7.-

3)

ULNRC-1565, f dated July 31,i1987

-Re'ferencell' transmitted the Callaway Surveillance Capsule

test report for surveillance capsule "U".'

This report was-submitted in accordance - with 10CFR50, -Appendix H and plant' Technical Specifications.

LAs noted. in Reference 3, an error in the calculations for

determining ~ the reference nil-ductility temperature (RTNDT) using' Regulatory. Guide'l.99 methodology was found.

This error'resulted

. in the submittal of-incorrect plant hectup and cooldown curves.

~

Included as-an. attachment to this letter is the corrected surveillance' capsule report (WCAP-ll374, Revision 1) entitled

" Analysis of Capsule U from Union Electric Company Callaway.

Unit 1 Reactor-Vessel. Radiation Surveillance Program".

This WCAP issue.provides revised plant heatup and cooldown operating limit curves and the correction to the Regulatory Guide 1.99 RTNDT calculations.

This transmittal supersedes the original issue of WCAP-ll374.

If you have any questions regarding this transmittal, please contact us.

Very truly yours, 18711170234 871110 j

DR ADOCK O 4y3 1

Donald F.

Schnell L-WEK/ mat' Attachment

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Maihng Address; P.O. Box 149, St. Louis, MO 63166

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.g l.6 cc:- Gerald Charnoff,-Esq.

Shaw, Pittman, Potts & Trowbridge 2300 N. S t re e t, N.W.

Washington, D.C.

20037 l

Dr. J. O. Cermak CFA, Inc.

4 Professional Drive (Suite 110)

Gaithersburg, MD 20879 I

W. L. Forney I

l Chief, Reactor Project Branch 1 U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 i

Bruce Little Callaway Resident Office U.S. Nuclear Regulatory Commission RR#1 Steedman, Missouri 65077 Tom Alexion (2)

Office of Nuclear Reactor Regulation U.S.

Nuclear Regulatory Commission i

Mail Stop 316 7920 Norfolk Avenue Bethesda, MD 20014 Manager, Electric Department

. Missouri Public Service Commission P.O. Box 360 Jefferson City, MO 65102 i

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