ML20082G988

Suppl to 901205 Application for Amend to License NPF-87, Consisting of License Amend Request 90-003,revising Tech Spec Section 4.8.1.1.2a(4) (E) Re Startup Transformer Secondary Winding Undervoltage & Start Signals

ML20082G988
Person / Time
Site:	Comanche Peak
Issue date:	08/16/1991
From:	William Cahill TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20082G992	List: ML20082G988 ML20082G996
References
TXX-91302, NUDOCS 9108220202
Download: ML20082G988 (3)

Text

_=

- Log a 1XX-91302 file # 10010 916 (3/4.8)

Ref. # 10CfR50.90 7U! / / (;/Rlt 10CIR50.91 10CIR50.92

"/,I,"','i ,!.7!,"1 August 16, 1991 U. S. Nuclear Regulatory Congnission Attn: Document Control Desk Washington, D. C. 20555 SUlh1LC1: COMANCllE PEAK STEAM ELECTRIC STATION (CPSES) - UNil 1 DOCKET NO. 50-445 OPERAllNG LICINSE NPF-87 SUPPLEMENT 10 LICLHSE AMENDMENT REQUES1 90-003, REVISION 10 lilE UNil 1 TECllNICAL SPEClflCA110NS, SEC110N 4.8.1.1.2a(4) (c)

REF: TV Electric letter logged TXX-901035 from William J. Cahill, Jr.,

to NRC, dated December 5, 1990 Gentler.en:

Via the reference letter and pursuant to 10CfR50.90. Texas Utilities Electric Company (TV Electric) requested an amendment te its Operating License NPf-87 by incorporating proposed changes to the Technical Specifications for the Cor.ianche Peak Steam Electric Station (CPSES) Unit 1.

The License Amendment Request (LAR 90-003) affects the startup transformer secondary winding undervoltage and loss of preferred offsite power source diesel generator start signals. LAR 90 003 deletes the two start signals options from the lechnical Specification diesel generator start surveillance since the plant is being modified to prevent these signals from unnecessarily challenging / starting the diesel when the alternate offsite power source is available.

LAR 90 003 deletes options b) and c) in surveillance 4.8.1.1.28, subparagraph 4), llowever, LAR 90 003 omitted a related change to option e) in the same subparagraph. Option b) addresses loss of preferred offsite power, Option e) addresses the safety injection actuation test signal in conjunction with the loss of preferred offsite power. With the deletion of option b) from the surveillance and the subsequent plant modification to remove this option from the plant, option e) would no longer be consistent with the as-built plant.

Thus for consistency, option e) should address the loss of offsite power signal instead of the loss of preferred offsite power signal.

$ Nib b P

400 North Olete Strert I..H El Dallat lenas 75201

}pc(

\\\

__A

i TXX-91302 Page 2 of 2 TV Electric hereby supplements LAR 90-003 to so revise surveillance 4.8.1.1.2a, subparagraph 4), option e), as shown in Attachment 2. The 10CfR50.92 assessment performed for the original submittal was reviewed and datermined to be valid and to encompass the supplemental change.

The CPSES Station Operation Review Committee (50RC) and Operations Review Committee (ORC) have reviewed and approved this supplemental change.

10 Electric requests approval of the proposed Amendment by October 1,1991, with an effective date of seven days after approval. The design modification associated with LAR 90 003 is scheduled to be completed during the 1991 Unit 1 ,

refueling - outage.

In accordance with 10CFR50.91(b), TV Electric is providing the State of Texas a copy of this proposed amendment.

Sincerely, 10 .

William J. Cahill, Jr.-

VPC/gj Attachments 1. Affidavit

- 2. Revised Technical Specification change.

c - Mr. R. D. Martin, Region IV Residentinspectors,CPSES(3)

Mr. T. A. Bergman, Project Manager U. S. NRC, Office of Spacial Projects (CPSES)

Washington, D. C. -20555 -

D.-K. Lacker.

Bureau of Radiation Control  :

Texas Department of Health 1100 West 49th Street Austin, Texas 78704 l

V' W :wf *fg 0$g 'a TTT-- 9 7 y p+9-f* 6 W y Pte y --p mey+ p, m+ - - gma wmyg y y y y m ryeg -m-e**-

_._--_-m . . . _ . _ _ _ . . _ _ _ _ _ _ _ _ _ . . _ . _ _ . . _ _ _ _ .

Atte.hment I to TXX 91302 I Page 1 of 1 UNITED STATES OF AMERICt.

NUCLEAR REGULATORY COMMISSION In the matter of Texas Utilities Electric Company ) Docket No. 50-445 (Comanche Peak Steam Electric Station, Unit 1) -

AFFIDAVIT William J. Cahill, Jr. being duly sworn, hereby deposes and says that he is Executive Vice President,- Nuclear of TV Electric, that he is duly authorized to sign and file with the Nuclear Regulatory Commission the attached proposed changes to the Comanche Peak Steam Electric Station Unit 1 Technical S)ecifications, Section 4.8.1.1.2a(4); that he is familiar with the content t1ereof; and that the matters set forth therein are true and correct to the '

best of his knowledge, information and belief.

~

William J. Cahili, Jr. 7 Executive Vice President Nuclear STATE OF TEXAS )

)

COUNTY OF SOMERVEI)L Subscribed and sworn to before me, a Notary-Public, on this 15thday of August ,

199},

f .

~" C

-- _ f ~ $C hATRICIA WILSON Notary Public

' wv ccwstm tWJ

, MUch to,1993 a,-J 4;ir sv.:rr - -

I

,.