ML19321A775

Final Part 21 Rept Re Potential Deficiency in Bechtel Power Corp Pipe Support Design.Corrective Actions:Pipe Support Design Issue for Const Suspended Pending Preparation, Approval & Issue of New Embed Plate Capacity Tables

ML19321A775
Person / Time
Site:	Vogtle
Issue date:	07/07/1980
From:	Lex B BECHTEL GROUP, INC.
To:
References
REF-PT21-80-216-002 LOG-BV-4077, NUDOCS 8007240182
Download: ML19321A775 (7)

Text

, ATTAGED IS A PART 21 REPORT FROM IE i%IL UNIT - ROOM 359 E/W PART21IDELTIFICATIONNO.. fo .2/G oa

• COMPANY RVE3m4 Al # bus DATE OF LETTER. 7/7j / fo DOCKET NO. Eo - 9a Yj Yo - W s' DATE DISTRIBliTED MsW o _ ORIGIIML REPORT SUPPLBEhTARY W DISTRIBLITION:

REACTOR (R) T. FUEL CYCE & SATGlMRDS (S)

FMTERIAl.S (M)

IE FIES IE FIES AD/RDI(2) IE FIES AD/SG AD/RCI(2) AD/FFMSI AD/ROI REGIONSI,II,III,IV,V REGIONSI,II,III,IV,V REGIONSI,II,III,IV,V VENDOR BR. R-IV VENDOR BR. R-IV VBBOR BR. R-IV LDEB / IPA FIB 5715 tFSS / FCMS SS-395 NRR/ DOL AEOD FIB 7602 L0EB/FFA FIB 5715 ifES / SG SS-881 NRR/ DOE AEOD M B 7602 LDEB/FFA FIB 5715 NRR/DSI CEhTPAL FILES 016 AE0D FIB 7602 NRR/ DST CENTPAL FILES ( GRON) CEPTRALFILES 016 NRR/ DOL PDR CENTPAL FIES (GR0iO CEiffRAL FIES 016 LPDR CENTRAL FIES SS-396 CENTRAL HES (GFDD TERA PDR PDR LPDR LPDR TERA TERA ACTION:

PRELIMINARY EVALUATION OF THE ATTACHED REPORT INDICATES LEAD RESPONSIBILITY FOR COLLOWJP AS SHOWN BELOW:

IE ] NRR 1 l#SS OTHER :

@ SG FFMSI

Bechtel Power Corporaticn Erp,eers - Cc'svu::o's 12.! ~!? Et t' i T.M 2' H c. N.af .C., -

NO* .a: . Calo .:a 9 55U r n (N.y.

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U.S. ::uclear Regulatory Cor. mis sion

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Arlington, Te>:as 76012 Sub"ect: J Georgia ?cuer Company ,. -

navin h. . N.o c. :le ,..uclear Plant Bechtel Job 9510-001 Potential Substantial Safety Hacard/Significant Deficiency Esport File X7BG03 Log BV 4077 F.eferences: 1. Letter to Mr. Earl Seyfrit from 11r . E. L. Le >: , dated May 2, 19c0, Log 30-0004 r

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'ar . 3. L. Le >: , dated January 31, 19EC, Log 50- 000 3

3. Letter to Earl Seyfrit frcr Mr. 3. L. Le >: , dated January 29,1980 Log 50-0002

Dear F.r. Seyfrit:

The enclosed attachment titled Final Feport is being transritted to vou under 10 CFE 21 recuirerients concerninc, the e Ossible

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ce.lc2ency in t.ne .o' re s uc. c. or t c.e s i c. n < re a:1re to sun'ect above.

The interim reocrts were forwarded te .'cu cv. the

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-7 Power Ccrpcration for Alvin W. Vo-tle Nuclear Plant, "Jnits 1 and 2, Docket Numbers 50-424 and 5C-425.

2.0 Individual Feportinc Burton L. Lex, Froj ect Manac.er - Voc. tle , Lcs Anc.eles Power n 4 v.4 c ieri, : -.= " 5. '. e ' - ~.s"c - Cc pem c-'_4c.., -'-2.00 r=c-- -...

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4.0 Supplying Firms De sia. n : Eechtel Power CcrPoration. Construction: Ge erc_ i a Power Company.

5.0 Basic Component Identification All pipe supports issued for construction on the Vogtle Froiect as of Januar.v 18, 1980.

tec .lon 7.-

anc. ~ e.- z. ; 3 - . "his includes u 5763 AS".E .

12 .eeismic a ec.or.v 1, urc.racec .

ncn-Seismic Catec.orv I and non-Seismic Catec.ory I ) cire . . . .

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6.0 Deficiencv Description

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nuc., ear orciectsi present and pasto were a2ertec anc respenses received. All pro"ects a which hcd used the design guide reported correct. interpretation and implementation. All projects which had not used the design guide reported that their design mennocs hac. procerlv. nanciec :ne alo.e sto.cor: embec. inter., ace using basic structural design rethods. .Two projects have nCt

v. e t commenced o. ice support desie.n

. r but are now alerted to this Inc1 cent.

oac ca.cacity tau-les were crocucec -cr a,_, existinc. tvnes c.5

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o Sur.rorts rec.esic.nec upon review 1306 o Totals 5763 = 763 + 3694 + 1306 Fi.re suctort drawings redesigned because of the 10 CFR 21 review represent 230 (= 100x1306/5763) of all supports issued for construction on February 1, 19EO.

10.0 Installation hold lift Georc.ia Power Ccmr.anv's Construction was notified on July 8, 1980 to lift the installation hold on all supports

sted as accepta.,cle in t e = rec Eurmarv .c3.; e e t s , unien were .

';pecially prepared for this review effort.

11.0 Eedesigned Supports

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