ML13331B370

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Ro:In Accordance W/Ie Bulletin 79-14,field Verification of Line 3009-2-A Indicated U-bolt Support Had Not Been Installed Per Seismic Input Documentation.Missing U-bolt Will Be Installed
ML13331B370
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 05/12/1980
From: Curran J
SOUTHERN CALIFORNIA EDISON CO.
To:
References
IEB-79-14, NUDOCS 8005160257
Download: ML13331B370 (2)


Text

REGULATORONFORMATION DISTRIBUTION S EM (RIDS)

ACCESSION NBR:8005160257 DOCDATE: 80/05/12 NOTARIZED: NO DOCKET #

FACILO50-206 San Onofre Nuclear Station, Unit 1, Southern Californ 05000206 AUTH.NAME AUTHOR AFFILIATION CURRANJ.M.

Southern California Edison Co.

RECIPNAME RECIPIENT AFFILIATION

SUBJECT:

RO:in accordance w/IE Bulletin 79*14,field verification of Line 3009-2-A indicated U-bolt support had not been installed per seismic input documentationMissing U-bolt will be installed.

DISTRIBUTION CODE: M007S COPIES RECEIVED:LTR ENCL SIZE:

TITLE: LER (Backfit)

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID COQE/NAME LTTR ENCL INTERNAL: 0 0 2NRC

'DRI 04 11' AEOD I

BERLINGERC, HANAUE s,'

/

MPA EXTERNAL: 03 LPDR 1

NSIC MAY 19 1980 TOTAL NUMBER OF COPIES REQUIRED: LTTR

-rVY ENCL Southern Ca//fornIa EdIson Company p eg bx fell SAN'C LUEMENTE,. CA 4;6etteA @4PS May 12, 1980 U. S. Nuclear Regulatory COmmission Office of Inspection and Enforcement Region V 1990 North California Boulevard Suite 202, Walnut Creek Plaza Walnut Creek, California 94596 Attention:

Mr. R. H. Engelken,, Director DOCKET No. 50-206 SAN OmDRE.-

UNIT-I

Dear Sir:

This letter describes a.reportable occurrence involving.the Component tooIlIng Water System as defined ih Section. 69.2 Appendix A the Provisional Operating Litense DPR-13.

In accord&nce with IE Bvletit 79-144 field verificstion of Line 3009-2"-A. dtermined that a. Ubolt support had not been installed per the seismic input.documentation.

Line 3009-2"-As the Residual' Heat Removal Pump (Gd4A). shaft seal cooling water return line.

As required by. E Bulletin 79-14, 6n engineering-evaluation was undertaken to-detemine if the operability of the piping might be j6opardited during: a seismic event.

This evaluation indicated that the piping-would be stressed-in excess of allowable levels but.not above the yield stress.

Accordingly, the missing -bolt support will be installed.

The pump was out of service for overhaul at the time thls deficiency was identified and in accordance with Appendix A Technical Specifications was not declared operable until the as-built configuration was in secordance with the seismic input documentation..

A complete report-on this matter together with a Licensee Event Report will be forwarded within two weeks.

Sincerely, J..-M. CURRAN PLANT MANAGER MPSedh

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