ML19320D552

Third Interim Deficiency Rept Re Damage to Steel Liner in Reactor Containment Bldg.Logic for Liner Bulge Repair Encl. Next Rept Will Be Forwarded by 801001

ML19320D552
Person / Time
Site:	South Texas
Issue date:	07/11/1980
From:	Oprea G HOUSTON LIGHTING & POWER CO.
To:
References
SFN:-V-0530, ST-HL-AE-494, NUDOCS 8007210511
Download: ML19320D552 (4)

Text

1 The Light (OE E

Houston Lighting & Power P.O. Box 17an 54miston, Texas 77001 (713) 228-9211 July 11,1980 ST-HL-AE-494 SFN: V-0530 Mr. Karl Seyfrit Director, Region IV Nuclear Regulatory Comission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76102

Dear Mr. Seyfrit:

South Texas Project Units 1&2 Docket Nos. STN 50-498, STN 50-499 Third Interim Report on Damage to the Steel Liner Report in the Unit 2 Reactor Containment Building In a previous letter (ST-HL-AE-477), Houston Lighting & Power Company committed to provide the next interim report on the liner plate bulge by July 11, 1980. The attached logic for the liner bulge repair is provided in s

response to this commitment. The next report will be submitted by October 1, 1980.

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

Very truly yours, W. O G. W. Oprea, Jr.

Executive Vice President SSR/ pjb Attachment Sool

.s 80er io gn s

Houston Lp.::ng & Paer Compa..,

ST-HL-AE-494 Page. 2 July 11, 1980 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. Newman (Lowenstein, Newman, Reis, Axelrad & Toll)

Director Office of Inspection & Enforcement Nuclear Regulatory Commission Washington, D.C. 20555 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 Se.n Antonio, Texas 78296 A. vonRosenberg City Public Service Board P. O. Box 1771 San Antonio, Texas 78296

o Houston Lighting & Power Company ST-HL-AE 494 Page 3 July 11, 1980 Charles Bechoefer, Esquire Chairman, Atomic Safety & Licensing Board U.S. Nuclear Regulatory Comission Washington, D.C. 20555 Dr. James C. Lamb, aII 313 Woodhaven Road Chapel Hill, North Carolino 27514 Dr. Em.eth A. Luebke Atomic Safety & Licensing Concission U.S.. Nuclear Regulatory Comission 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, Tex:s 77422 Richard W. Lowerre, Esquira Assistant Attorney General for the ftate of Texas P. O. Box 12548 Capitol Station Austin, Texas 78711 Henry J. McGurren Esquire Hearing Attorney Office of the Executive Legal Director U.S. Nuclear Regulatory Comission Washington, D.C. 20555 t

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84R Activity 3+ 80 PDM Ac tie t ty 2

Liner B & e Repatr RCB 2 Ste'l Wil 2

• - Estimate 5

Report Bulge To

$lte Inspection 81 Repair of RC8 Volds issue NCR #5-M3759 &

Issue Liner Dwg.

7 houston Engineertr4g Engineering &

NCR *$-C3461 Permitted Write NCR Assign To Construction Issue NCR #5-M3759A &

2-5-1024-0 (Defines

'g y

1. 5-C3759 _ m (Changed To Correct ho.) p Reassign To Engineering c Damaged Section)_-

Liner Bulge _ p 8y Phone

. n Initiate NCR

_n To Cor.tinue (1)

_r_

v s

g

-y 1-14-80 l-14-80 1-15-80 1-15-80 1-16-80 1-21 80 1 24 80 3-6-80 5

v Material Procurement Liner Repair If Required (4)

Fabrication (Leak Tightness) 3 m s.*

6 wks.* (5)

I wk.*

3 wks.* (6)

Receive Liner thg. at g,,a,, g,,,gning Section 9-12 80 10-3-80 Continue rp 5

Dg (4

ner a Edges k)

Liner Replacemen hout r Complete)

Co 3-6-80 6 wks.*

2 wks.*

8-8-80 o(I*k*

4 wks..

I wk.*

I wk.*

U 2 Days *

's s,,\\s 1-25-80

<g 3

PDM Change 4

0@

NOTES 8

6 wks.*

7>

(1) - Basts: al Separate NCR to be written for the Liner Bulge b i Deformation occurred during RC8 Void Repair 6-6-80 Liner su1 e NCR to be referenced on NCR 85-C3461 Partial Otsposition tgner Concrete Engineering ' full Olsposition el 9

prior to closecut of 3461 L

e

,8 q

4 emova1(3)_

Inspection p Evaluation _

of NCR d) Lfwr Bulge to be discussed in the RC8 Voids Final of teCR (2)

R E

1 wk.*

N 6 wks.* '

2 Days

• V 2 wks.* V 1 wk.*

P. port to hRC thus no delay in the Final Report f

.h e{~

n 4-25-80 (2) - Propose 6* away from maatsua seam boundary 2" tid;n:tionSitesubcontracts.g1-Concrete Preparation 3 wks.*

t - uR castructia to assia as miscabie

. Siin.

(4) - Utilize entsting liner plate section 9 site (if possible)

Estfaste Cost of I day

• tiner Removal y

Order Grout (5) - New liner plate section 3

2 days

• PDMSSite.Generatek If Required A

Receive Grout g,g,.

5 wks.*

(6) - Entsting Itner plate section 9 site ECAR. Permit Wo;k (7), b

'%/

I day *

(7) - Contingent upon PDM Home Office receipt of Dwg. 2-5-1024 1

...