ML20012C617

Forwards Status of Actions Committed to Re NRC Bulletin 88-004 in Response to G Dick Request

ML20012C617
Person / Time
Site:	South Texas
Issue date:	03/16/1990
From:	Mcburnett M HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-88-004, IEB-88-4, ST-HL-AE-3373, NUDOCS 9003220287
Download: ML20012C617 (4)

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-The Light-

.companyS uth Houston Lighting & Power esas Project Dectric &nerating Station P. O. Box 289 ' Wadsworth', Texas h7483 March 16, 1990 ST-HL AE-3373 File No.: G20'1, G3.03 10CFR50.12 U.S. Nuclear Regulatory Coranission Attention: Document Controi Desk Washington,:DC 20555

. South Texas Project Electric Generating Station Units 1 & 2 Docket Nos. STN 50-498, STN 50-499 7 Responses to the Request for Status Information Regarding Commitments in NRC Bulletin 88-004

Reference:

Letter ST-HL-AE-2723 from HL&P to the U.S.

Nuclear Regulatory Commission dated July 12, 1988.

In the above' reference ~1etter, Houston Lighting & Power Company (HL&P) submitted the response to NRC Bulletin 88-004. Enclosed is a status of those actions committed to by HIAP in the subject response which had not been implemented at the time the;1etter was issued. This status was verbally requested by Mr. George-Dick of your office.

-If you should have~any questions on this matter, or the attachments, please contact Mr. A.' W. Harrison at (512) 972-7298 or myself at ,

(512) 972-8530.

k $-l M. A. McBurnett Manager, Licensing ,

I SDP\hg

. Attachments: Status of Commitments in NRC Bulletin 88-004 9003220287 900316  %

PDR ADOCK 05000498 -1 O PDC b

A Subsidiary of Houston Industries incorporated i

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SToHL-AE 3373 Houston Lighting & Power Company File No.: G20.1, G3 93 South Texas Project Electric Generating Station Page 2 B cc:

Regional Administrator, Region IV Rufus S. Scott Nuclear Regulatory Commission Associate General Counsel 611 Ryan Plaza Drive, Suite 1000 Houston Lighting & Power Company Arlington, TX 76011 P. O. Box 61867 Houston, TX 77208 Ceorge Dick, Project Manager U.S. Nuclear Regulatory Commission INPO Washington, DC 20555 Records Center 1100 circle 75 Parkway J. I. Tapia Atlanta, GA 30339-3064 Senior Resident Inspector c/o'U. S. Nuclear Regulatory Dr. Joseph M. Hendrie Commission 50 Be11 port Lane

.P. O. Box 910 Be11 port, NY 11713  ;

Bay City, TX 77414  !

D. K. Lacker i J. R. Newman, Esquire Bureau of Radiation Control Newman & Holtzinger, P.C. Texas Department of Health 1615 L Street, N.W. 1100 West 49th Street Washington, DC 20036 Austin, TX 78704 D. E. Ward /R. P. Verret Central Power & Light Company P. 0. Box 2121 Corpus Christi, TX 78403 J. C. Lanier Director of Cenoration City of Austin Electric Utility 721.Barton Springs Road  ;

Austin, TX 78704 {

l R. J. Costello/M. T. Hardt City Public Service Board P. O. Box 1771 San Antonio, TX 78296 l

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l Revised 12/15/89 L4/NRC/

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-Attachment 1-ST HL-AE 3173 File'No.: G20.1, G3.3 P

Page 1 of 2 l

r Status of Commitments in t

NRC Bulletin No.88-004 Action Item 3-Reactor Makeun Vate'r Pumns ,

g A recirculation test will be performed by September 30, 1988, to measure the actual minimum flow through the RM pump recirculation line.

Corrective action will be taken as necessary. Actual minimum flows on the Unit 2 RM pumps, whose configuration is the same as Unit 1, meet or -

exceeded the supplier's recommended flow.

STATUS  :

The actual flow through the Unit 1 RM pumps' minimum flow line was not measured in its normal configuration during startup testing or' '

subsequent in service testing. Subsequently on September 28,.1988 s a recirculation test was performed to measure the actual minimum flow through the Unit 1 RM pump recirculation line with acceptable results. Therefore actual minimum flown on Unit 1 and Unit 2 met or exceeded the supplier's recommended flow.

Centrifural Charcinc Pumns Long term reliability of the Centrifugal Charging Pump 1B is under review, no problems are anticipated. This review will be completed by September 30, 1988.

STATUS A.long term reliability review was completed on September 30, 1988. As stated in the referenced letter, the amount of operating time at the minimum flow condition is expected  ;

to be a small percentage of the total pump operating time, and no 4 detectable: degradation is anticipated in the near term. Continued operation of this pump is therefore justified. A design change that will permit conformance to the suppliers original recommendation will be implemented during the Unit 1 third refueling outage.

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, -Attachment 1  :

, .. ST HL AE 3373' I L File No.: G20.1, G3;03- ,

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L-1 Safety Iniect_fon Pumos -

[' The-limited pump operation to date and scheduled operation for quarterly

• s'rvei1>< ace testing are not expected to result in degradation of the jumps ar of their' ability to deliver design flow for the duration ~of a safety. injection' actuation. These pumps are unlikely to show any change in vibration level or degradation in performance for the -first three to-l four years of plant operation. Modifications-to the system will be'made.

to ensure that recirculation flow is in conformance with the supplier's reconcendation prior to the end of the first refueling outage on Unit 1.

Modifications have been made for Unit 2.

STATUS Modifications that ensure recirculation flow is in conformance l with the supplier's recommendation were completed prior to the end-of the first refueling outage on Unit 1.

Unit 2 The affected Unit 2 safety related pumps.will be tested in accordance with the Unit 2 startup test program to assure that pump minimum flow is satisfactory. ,

e STATUS The-affected Unit 2 safety related pumps were tested in accordance with the Unit 2 test program and found to be satisfactory.

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