ULNRC-03627, Application for Amend to License NPF-30,revising TS Table 3.7-2 Specifying That Lift Setting Tolerance for Main Steam Line Safety Valves Is +3/-1% as-found & +1% as-left.Table 2.2-1 Revised by Reducing Sensor Error for Pressurizer

Application for Amend to License NPF-30,revising TS Table 3.7-2 Specifying That Lift Setting Tolerance for Main Steam Line Safety Valves Is +3/-1% as-found & +1% as-left.Table 2.2-1 Revised by Reducing Sensor Error for Pressurizer

ML20198F332
Person / Time
Site:	Callaway
Issue date:	08/08/1997
From:	Passwater A UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20198F337	List: ML20198F341 ULNRC-03627, Application for Amend to License NPF-30,revising TS Table 3.7-2 Specifying That Lift Setting Tolerance for Main Steam Line Safety Valves Is +3/-1% as-found & +1% as-left.Table 2.2-1 Revised by Reducing Sensor Error for Pressurizer
References
ULNRC-03627, ULNRC-3627, NUDOCS 9708130014
Download: ML20198F332 (44)

Text

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' 1901 Ctanteau Awnue k t(st!ke k 149,

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t August 8, 1997 n

U. S. Nuclear Regulatory Commission ATTN:

Document Control Desk Mail Station P1-137

. Washington, D. C.

20555-0001 ULNRC-03627 Gentlemen:

CALLAWAY PIANT DOCKET 1RH4BER 50-483 REVISION TO TECHNICAL SPECIFICATION

References:

1) ULNRC-03069 Dated September 12, 1994

2) NRC Letter to D.

F. Schnell Dated October 3, 1996 Union Electric Company herewith transmits an application for amendment to Facility Operating License Number NPF-30 for the Callaway Plant.

Table 3.7-2 is revised to specify that the lift setting tolerance for the main steam line safety valves is +3/-1% as-found and 11% as-left.

Table 2.2-1 is revised by reducing.

the sensor error for the pressurizer pressure-high trip.

Revising the sensor error in this manner provides margin to relax the setpoint tolerance for the

-main steam line safety valves.

On September 12, 1994 (Reference 1), we submitted a similar amendment request to revise the lift setting tolerance for the main steam safety.

g) i valves.

The request, based upon WCAP-12910 and the j

RETRAN computer code, extended the high. pressure criterion for the locked rotor event above 110% of the design pressure.

This amendment application was denied (Reference 2) because the staff disapproved increasing t

/

/.

/,

the acceptance criteria for the.WCAP-12910 locked rotor /(

analysis to 120%.

i k}flkh lk,,k 5,5 i, 9708130014 970000 PDR ADOCK 05000483 h

-P PDR jy a

This application utilizes LOFTRAN instead of the RETRAN computer code.

This results in system pressure less than 110% of design pressure, which meets Service Lovel B acceptance criteria.

The Callaway Plant On-Site Review Committee and the Nuclear Safety Review Board have reviewed and approved the amendment request.

Attachments 1 through 3 provide the Callaway current and standard Technical Specification changes, Significant Hazards Evaluation, and Environmental Consideration, respectively.

We have concluded that this amendment request does not involve a significant hazard consideration as determined per 10CFR50.92.

Pursuant to 10CFR51.22 (b),

no environmental impact sthtement or environmental assessment need be prepared in connection with the issuance of this amendment.

Review and approval of this amendment application is requested by January 1, 1998 to support the Callaway Plant Reload 9 outage schedule.

If you I

have any questions concerning the amendment application, please contact us.

Very truly yours, j

24pc Alan C. Passwater

{

Manager-Licensing and Fuels i

WEK/

Attachments: 1) Technical Specification Changes

2) Significant Hazards Evaluation Appendix A Appendix B

3) Environmental Consideration

I STATE OF MISSOURI )

)

SS CITY OF ST. LOUIS )

Alan C.

Passwater, of lawful age, being first duly sworn upon oath says that he is Manager, Licensing and Fuels (Nuclear) for Union Electric Company; that he has read the foregoing document and knows the content thereof; that he has executed the same for and on behalf of said company with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.

By Alan C.

Passwater Manager, Licensing and Fuels Nuclear SUBSCR BED and sworn to before me this day of nou4t

1997, d

ff koE W j-ry>dlu k ic= ese Oh PATNCIA L REYNOLDS Isumpusuc-emuwasseous ST. LOUIS COUNTY Nf"EXPNES 800.II,3W0 l

1

cc:

M. H. Fletcher-Professional-Nuclear Consulting, Inc.

19041 Raines Drive-Derwood,:MD 20055-2432 Regional. Administrator U.S. Nuclear-Regulatory Commission Region IV 611 Ryan Plaza Drive i

Suite 400 Arlington, TX 76011-8064 Senior Resident Inspector Callaway Resident Office j

U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Barry C. Westreich (2)

Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission l

l' White Flint, North, Mail Stop 13E16 i

11555 Rockville-Pike-Rockville, MD 20852-2738 j

Manager, Electric Department Missouri Public Service Commission LP.O. Box-360 Jefferson City,-MO 65102 Ron Kucera-I Department of Natural Resources P.O. Box-176-

-Jefferson City, MO 65102 i

Don Woodlan TU Electric P.O. Box 1002 Glen Rose, TX 76043-Pat Nugent Pacific Gas & Electric Regulatory Services-P.O. Box 56 Avila Beach, CA 93424

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