ML13331B392

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Ro:Visual Insp in Response to IE Bulletin 79-13,Revision 2 Revealed Deficiencies in Three Feedwater Sys Piping Supports for Supply to Steam Generator A.Complete Rept Will Be Submitted in Two Weeks
ML13331B392
Person / Time
Site: San Onofre 
Issue date: 05/15/1980
From: Curran J
SOUTHERN CALIFORNIA EDISON CO.
To:
References
IEB-79-13, NUDOCS 8005280681
Download: ML13331B392 (2)


Text

REGULATORY INFOR 10N DISTRIBUTION SYSTEM DS)

ACCESSION N8R:8005280681 DOC.DATE: 80/05/15 NOTARIZED: NO DOCKET #

FACIL:50-206 San Onofre Nuclear Station, Unit 1, Southern Californ 05000206 AUTH.NAME AUTHOR AFFILIATION CURRANrJqM,.

Southern.California Edison Co..

RECIPNAME RECIPIENT AFFILIATION

SUBJECT:

RO:visual insp in response to IE buletin 79*13,Rev sion 2 revealed deficiencies in three feedwater sys piping supports for supply to steam generator A.Complete rept will be submitted in two weeks, DISTRIBUTION CODE: M0078 COPIES RECEIVED:LTR ENCL.Q SIZE:.JL TITLE: LER (Backfit)

NOTES:_1 RECIPIENT COPIES RECIPIENT COPIES ID.CODE/NAME LJTR ENCL ID CODE/NAME LTTR ENCL INTERNAL:

A 0

1 02 NRC PDR 04 I&E 2

AEOD 1

BERLINGERoC, 1

f

MANAUERS, 1

MPA 1

EXTERNAL: 03 LPDR 1

NSIC 1

MAY U

Uov TOTAL NUMBER OF COPIES REQUIRED: LTTR

14. ENCL i

Southern Ca/fornia Ed/son Company

  1. itw C Mltataiv.

CA,99 t

9 May 15 1980 U. S. Nuclear Regulatory Comnision AY V Office of Inspection and Enforcement Region V 1990 North California Boulevard Sutte 202., Walnut Creek Plaza Walnut Creek, California 94596 Attention:

Mr. R. H. Engelken, Director DOCKET No. 50-206 SAN ONOFRE - UNIT I bear Sir:

This letter describe% a reportable occurrene involving the Main Feedwater System as defined In Section 69.2.a(9) of Appendix A to the Provisional Operating License DPR-13.

In accordance with IE Bulletin 79-13, revision 2, a visual inspection of feedwater system piping supports and snubbers inside containment has been performed.

On $ay 15, 1980 three supports for Line 393-10"-EG, maii feedwater supply to Steam Generator Ao were identified as deficient.

The deficiencies noted were:

'UPPORT DEFICIENCY 1-RH-393-2 Broken pipe clamp 1-KOS-393-1 Deformd pipe guide 1-RH-393-1 Missing lower pipe clamp not A complete report on this matter, together with a Licensee Event Report will be forwarded to your office within two weeks;.

Sincerely, A

Curran

\\

Plant Manager 8005280 1 -3 AAA.

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