ML19210C867
| ML19210C867 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 10/19/1979 |
| From: | Crews J, Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML19210C865 | List: |
| References | |
| PNO-V-79-005, PNO-V-79-5, NUDOCS 7911200235 | |
| Download: ML19210C867 (2) | |
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0ch 6. A9 PRLLIMIt!ARY t!OFITICATION
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PNd-y-79-5 PREll:4IllARY 110TIFICATI0N OF EVENT OR UNUSUAL OCCURREtlCE This preliminary notification constitutes EARLY notice of events of POSSIBLE The information presented is as safety cr public interest sicnificance.
Mially received without verification or evaluation andls basically all
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get is lknown tv IE staff onitWi,s dati. ~
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Facility:
Portland General Electric Company Trojan Nuclear Plant-Rainer, Oregon Docket No. 50-344
Subject:
. AUXILIARY BUILDING CONCRETE BLOCK WALL ADEQUACY The licensee has informed the resident inspector that preliminary analysis indicates that a wall used to anchor a rostraint for an RHR pump suction line may not have the necessary structural capability.
Octailed analysis is in progress and should be completed for the wall in question by' If.the 10/22/79. -The plant is currently shutdo.sn for steam generator tube repairs.
analysis of the wall indicates a need for support system modifications,. the licensee plans to remain shutdown until repairs are made.
An. extensive r. view of concrete block walls at the facility is underway to detemine These walls are double concrete block, if this potential problem exists elsewhere.
with rebar and grout.
No media. interest is expected.
CONTACT:
J. L. Crews, RV D. Sternberg, RV (415) 932-8300 Distribution:
Transmitted H St thairna5 Hin~drie Commissioner Bradford S. J. Chilk SECY C. C. Kammerer, CA
'o :nissioner Kennedy Commissioner Ahearne (For Distribution)
Co:rmissioner Gilinsky ACRS IE:XCOS ).36(IE:HQ Dist.)
P Bldg Transmitted: liNCB H. R. Denton, NRR L. V. Gossick EDO H. L. Ornstein, E00 R. C. DeYoung, flRR Landow (6 min./page)
R. J. Mattson, NRR
,J. J. Fouchard, PA D. Vassallo, NRR J. J. Cumings, DIA
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N. M. Haller, MPA R. G. Ryan, OSP D. Eisenhul, NRR (MAIL)_
H. r.. Shanar. ELD SS Bldg R. Mir.cgue, SD
- 11. J. Di rc%s, HM55 IE: XOOS Other F.Kic.ul Officos S. l.evinc, P.E5 RV Fom 2 '
7911200y}3 1363 302
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c' O! VISION OF REAC10R DAILY REPno? - REGION V OPERATIONS INSPECTION DATEI fo[22/7
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LFACILITY N0lIFICATION ITEM OR EVENT REGJONAL A p0RTLAND GENERAL TELEPHONE CALLS ON OCTOBER 19, 1979, REGION V RECEIVED A PRELIMINARY CUNIINUL 1 ELECTRIC CO.
( FROM RESIDENT REPORT FROM THE RESIDENT INSPECTOR THAT A WALL USED TU (NEF: 'PNG jROJAN INSPECTOR ON ANCHOR A PIPE RESTRAINT FOR A RHR PUHP SUCTION LINE
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j nN 50=344 10/19,20,22/79 HIGHT NOT HAVE THE NECESSARY STRUCTURAL CAPABILITY, PN0=V-79a5 hAS ISSUED ON THIS SUBJECT ON OCIOBLM 19, 1919 e_
THIS INFORMATION WAS CONFIRHED BY THE LICErr.,Et LATi.R UN OCTOBER 19 IF : HI) tl A S IllFORHED ON OClutlER 19 A' 0 26 Int LICENSEE IS DESIGrJIitG AND INS T ALLIi1G A t10pi r Ito l'i Ft.
RESTRAINT FOR THE RHH LINE IN UUESTION, THIS HuDIFICATION IS EXPECTED TD BE COMPLETED BY OCTOBER 24, 19T9.
A SURVEY OF SIMILAR CONCRETE BLOCK W ALL-PIPE HESTM AIf4T CONFIGURATIONS HAS UNDERTAKEN BY THE LICENSEE AND DLTAILE0 ANALYSES AHE IN PROGRESS BY HECHTEL CURPORATION TO IDENTIFY ANY OTHEa UNACCEPTABLE CONDIT!UNS.
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