ST-HL-AE-2439, Sixth Interim Deficiency Rept Re Veritrak Transmitters. Initially Reported on 870801.Temp Compensation Shift on Transmitter Capsules No Longer Concern,Per Westinghouse Testing.Amplifier Being Tested.Next Rept by 880331

Sixth Interim Deficiency Rept Re Veritrak Transmitters. Initially Reported on 870801.Temp Compensation Shift on Transmitter Capsules No Longer Concern,Per Westinghouse Testing.Amplifier Being Tested.Next Rept by 880331

ML20236Y097
Person / Time
Site:	South Texas
Issue date:	12/09/1987
From:	Goldberg J HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
ST-HL-AE-2439, NUDOCS 8712110088
Download: ML20236Y097 (2)

Text

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% rr The Light  ;

company .

P.O. Box 1700 Houston, 'lexas 77001 (713) 228 9211 3 llouston Lighting & Power -

3 December 9, 1987 ST-llL- AE- 2439 File No.: G12.333, G2.2 10CFRPO.55(e) i U. S. Nuclear Regulatory Commission  !

Attention: Document Control Desk Washington, DC 20555 South Texas Project Electric Generating Station Units 1 and 2 Docket Nos. STN 50-498 and STN 50-499 Sixth Interim Report Concerning Veritrak Transmitters On August 1,1986, Houston Lighting & Power Company (HIAP) notified your office pursuant to 10CFR50.55(e) of an item concerning Veritrak Transmitters at the South Texas Project. Our letter dated September 10, 1987, provided the fifth interim report on this subject and committed to provide a report by December 15, 1987. Although the cause of the errors has not been determined, {

testing to date has shown that the additional uncertainty allowances factored l into the Pressurizer Low Pressure Safety Injection setpoint and Emergency I Operating Procedure setpoints are conservative. Therefore, startup and operation of the South Texas Project may safely continue. Westinghouse has completed testing on the transmitter capsules and concluded that temperature compensation shifts due to aging or high temperature excursions are no longer a concern for these capsule assemblies. Comparable testing of the amplifier is being performed. Our next report will be submitted by March 31, 1988.

If you should have any questions on this matter, please contact Mr. l J. S. Phelps at (512) 972-7071, s i J. H. Goldberg Group Vice President, Nuclent THC/lj m I

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1 / J L2/NRC/d f A Subsidiary of Ilouston Industries incorporated \

8712110088 871209 PDR ADOCK 05000498 S DCD )

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I.- i Houston Lighting & Power Company ST-HL-AE-2439 File No.: C12.333, G2.2 Page 2 cc:

Regional Administrator, Region IV Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 N. Prasad Kadambi, Project Manager U. S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, MD 20814 Dan R. Carpenter Senior Resident Inspector / Operations c/o U. S. Nuclear Regulatory Commission P. O. Box 910 Bay City, TX 77414 Claude E. Johnson c/o U. S. Nuclear Regulatory Commission P. O. Box 910 Bay City, TX 77414 J. R. Newman, Esquire Newman & Holtzinger, P.C.

1615 L Street, N.W.

Washington, DC 20036 R. L. Range /R. P. Verret Central Power & Light Company P. O. Box 2121 Corpus Christi, TX 78403 R. John Miner (2 copies)

Chief Operating Officer City of Austin Electric Utility 721 Barton Spring Road Austin, TX 78704 1

R. J. Costello/M. T. Hardt  !

City Public Service Board i

P. O. Box 1771 San Antonio, TX 78296 Rufus S. Scott Associate General Counsel Houston' Lighting & Power Company P. O. Box 1700 Houston, TX 77001 Revised 11/20/87 L2/NRC/d

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