ML13316B705
| ML13316B705 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 01/02/1980 |
| From: | Dietch R SOUTHERN CALIFORNIA EDISON CO. |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| IEB-79-28, NUDOCS 8001140451 | |
| Download: ML13316B705 (2) | |
Text
~~RELYLATURY IN#MAI'IUN DISTNItUINSS~N2S ACCESSION~ NBR:8001140451 DOC.OATE: 80/01/U2 NOIAN.IZCD: NO OOCKET #
A~i:~-2b Sn noreNuclear Station, Unit 1#
noter Calion O~O AUTH,'NAME AUrdUR'AF!LIAfLU0N UIU5i,.Suth,ern Ciifornia Edison Co, RECip.N-AME NECI1iENWAFILIAT1ON ENGLlLKEN,_R,.H, R6 glo anrancjsco, Office of the Directo~r
SUBJECT:
Responds to IE Bulletin 79-28 re possible malfunction of Namco.Model EA180 limit switches at elevated ternps,Switches instaliled'ort6eing -installed havedi fferent_ identi fication numbe'r,Corrective action does not aiP.ply.,
DISTRIBU'rION CODE: A0013 COPIES RECEXVED:LI'R 2 ENCL
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TITLE: Ger-eral Oistribut-'or after 1ssuance--o-f -p-e-raii'ng Lic RECIPIENr COPIES RECIPIENI' COPIES ID-COuEONAME L.FtREN L lV)CbDENAME LI TR*ENCL ACTION:
05,8C.1-6
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J INTERNAL; 91 RLG FIL 1
1 02 NRC PDR 2 22 i4 rA/EDO_
iS CORE PENF bR 1
1 11 ENJGR BR 18$ REAC SFT-b:R I
1 19 PLANT-SYS BR 1
20 EE8L i
1 2i EFLT-TklSY*
I iI 22 BINKMAN 1
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EXTERNAL: 03 LPDR 04 NSIC I
23 ACR8 16 TOTAL NUMBER OF COPIES HEOULRED; LTIR
.~ENCL 4-8
Southern California Edison Company January 2, 1980 U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region V Suite 202, Walnut Creek Plaza 1990 North California Boulevard Walnut Creek, California 94596 Attention:
Mr. R. H. Engelken, Director Docket No. 50-206 San Onofre Unit 1
Dear Sir:
IE Bulletin 79-28 Possible Malfunction of Namco Model EA180 Limit Switches at Elevated Tenperatures Reference is made to your correspondence of December 7, 1979, forwarding the subject IE Bulletin. This bulletin identified potential malfunctions of Namco Model EAl80 stem mounted limit switches.
A review of Namco EAl80 limit switches installed or being installed at Unit 1 found no Namco limit switches which have an identification number between 02-79 to 08-79.
Therefore, the corrective action required by Bulletin 79-28 does not apply.
If you have any questions or desire additional information concerning our response to IE Bulletin 79-28, please contact me.
Sincerely, R. Dietch Vice President cc:
Director, Office of Inspection and Enforcement 8001140 4