ML19320C134

Second Interim Part 21 Rept Re Steel Liner Plate in Reactor Containment Bldg.Progress on Repair Includes Completed Removal of Deformed Liner Plate & Detailed Mapping of Removed Plate Submitted to Contractor

ML19320C134
Person / Time
Site:	South Texas
Issue date:	06/06/1980
From:	Eric Turner HOUSTON LIGHTING & POWER CO.
To:
References
REF-PT21-80-210-001 ST-HL-AE-477, NUDOCS 8007160219
Download: ML19320C134 (6)

Text

ATTAGED IS A PART 21 REPORT FR01 IE tall BilT - ROOM 359 E/W

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PART 21 IDENTIFICATION NO.

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COMPANY KVE ou + Pm

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%/ fr o DOCKET NO. So-49 r, ro -Y9 e IMTE DISTRIBUTED 4/ 9/ Fo DRIGINAL REPORT SUPPLFJENTARY L DISTRIBUTION:

REACIOR (R) [

FUEL CYCE &

SAFEGUARDS (S)

FATERIALS (FD IE FIES IE FIES AD/RDI (2)

IE FIES AD / SG AD/RCI AD / FFFSI AD / ROI EGIONS PEGIONS PEGIONS VENDORBR,RIV VENDOR BR R IV VEILDOR BR R IV,

L0EB / MPA FT4B 5715 ffES / FCFS NRR / DDR AE0D Fi4B7602 L0EB / FPA FliB5715 NFES / SG SS-881 NRR / DDR (2)

AEOD F14B7602 LOEB / MPA T14B 5715 NRR / DPM (2)

CENTRAL FIES 016

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CENTRAL FIES1 016 CENTRAL FIES (GRONL l'

~CDUPAL FIES 016

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PDR CBITRAL FIES (CHROM PDR LPDR CENTPAL FIES SS -3:

PDR JERA' LPDR TERA ACTION:

L PREL15}i55Y E dEbAYld 'Of THE TTN6HED 'REPORTfINDICATES LUPRESPONSIBIC'T T 5' ~

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COET.)dEE[ Hmim>n UMig n,wer m m>x Uno Hmim>n.'lexas,,001 GW 22M2H June 6, 1980 ST-HL-AE-477 SFN: V-0530 fC)--1 l 0 -o a (

. Director, Region IV Nuclear Regulatory Commission 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76102

Dear Sir:

South Texas Project Units'l & 2 Docket Nos. STN 50-498, STN 50-499 Second Interim Report on Damage to The Steel Liner Plate in the Unit 2 Reactor Containment Building In the first interim report (ST-HL-AE-433) dated March 24, 1980, Houston Lighting and Power provided a logic for the Unit 2 Reactor Con-M tainment Building liner bulge repair.

Provided for your information is a summary of the progress performed to date regarding the repair of the liner bulge.

- Pittsburgh Des Moines Steel Company, the containment liner sub-

. -. contractor, has completed.the. removal of the defonned liner

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plate.

- A detailed mapping of the extent of the removed liner plate has been completed.

This infonnation has in turn been provided to Pittsburgh Des Moines Steel Company in order that they may de-velop detailed shop drawings and procedures for the repair of the liner plate.. Discussions with Pittsburgh Des Moines Steel

-Company have indicated that the detailed drawings and procedures.

should be-received shortly, m

t.~owmerw-+Examinationcof-therconcrete-following-the -removal _of'the> deformedw--%ma

liner plate has-failet to disclose any unexpected or unusual con--

crete void formations.

.The logic previously issued is currently undergoing revisions and will be submitted upon its completion.

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Ilonst.,n 1.igining & Power (:omp.iny ST-HL-AE-477 SFN: V-0530 June 6, 1980 Page 2 The next interim report will be submitted on July 11, 1980.

Should you have any questions, please contact Mr. S. S. Rodgers at (713) 676-7953.

Very truly yours,

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E. A. Turner Vice President Power Piant Construction

& Technical Services RRH/mf O

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Houston tighti:*.3 & Paser Company ST-HL-AE-477 Page 3 cc:

G. W. Oprea, Jr.

D. G. Barker C. L. McNeese H. R. Dean R. L. Waldrop G. B. Painter A. J. Granger R. A. Frazar M. D. Schwarz (Baker & Botts)

R. Gordon Gooch (Baker & Botts)

J. R. Nevtman (Lowenstein, Newman, Reis, Axelrad & Toll)

Director, Office of Inspection & Enforcement Nuclear Regulatory Commission Washington, D.C. 20555

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M. L. Borchelt Executive Vice President Central Power & Light Company P. O. Box 2121 Corpus Christi, Texas 78403 R. L. Range Central Power & Light Company P. O. Box 2121 Corpus Christi, Texas 78403 R. L. Hancock Director of Electrical Utilities City of Austin P. O.

Box 1088 Austin, Texas 78767 M. C. Nitcholas City of Austin P. O. Box 1088 Austin, Texas 78767 J. B. Poston Assistant General Manager of Operations City Public Service Board P. O.

Box 1771

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San Antonio, Texas 78296 A.~vonRosenberg City Sublic Service Board P. O. Box 1771 San Antonio, Texas 78296 v

Houston, Ugh:mg & her Company ST-HE-AE477 Page 4 Charles'Bechoefer, Esquire Chairman,' Atomic Safety & Licensing Board U.S. Nuclear ~ Regulatory Commission Washington,'D.C. 20555-Dr.' James C. Lamb, III 313 Woodhaven Road Chapel-Hill, North Carolina 27514 4

Dr. Emmeth A. Luebke Atomic' Safety & Licensing Commission U.S. Nuclear Regulatory Commission

- Washington, D.C.20555 Steven A. Sinkin, Esquire 116 Villita Street

' San Antonio, Texas 78205 Citizens for Equitable Utilities c/o Ms. Peggy Buchorn Route 1, Box 432 Brazoria, Texas 77422 Richard W. Lowerre, Esquire Assistant Attorney General for the State of Texas P. 0.. Box 12548 Capitol Station Austin, Texas 78711 Henry J. McGurren, Esquire Hearing Attorney Office of the Executive Legal Director U.S. Nuclear Regulatory Commission Washington, D.C. 20555 v w e h

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Etox 1700 Brown and Root Building $3

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Centlemen:

Purcuant to the recent investigations of nomal nuclear power plant operation, Comsip, Inc.-has found that substantial

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damage to the containment gas analysin cyte:nc may occur uhon the samplo inlet and return linec are cloced off whild containment can, cyntem pumps are otill runninc.

the Since the plant ' operating procedures-are boyond our' contro'1, end the recultinc damace may pose a cafety hazard once these lince are opened, Corm ni p, Inc. Lo issuing the following wor!:

Instructionc to modify the systea pumpc.

Oneo implemented, tho - (lutomatic or manually operated nample line icoIntion valveu may be cloced without cubsequent dacago to the containment can cystem.

find enclosed a copy of 'the-report to the 1:fic which d.

P2ecce i~ote that i.t wee reporte initinted thic field rnodification.

under the requirements of 10Crn?1.

The above modificatico ic r.icndatory and Cranip uracc you to contact uo cc ac>on ac

-possibic co^ce +we-may-providemthe - mod irication.. kit, to tha,_

proper individuale.

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