05000361/LER-1982-175, Forwards LER 82-175/01T-0

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Forwards LER 82-175/01T-0
ML20072U055
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 03/25/1983
From: Ray H
SOUTHERN CALIFORNIA EDISON CO.
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
Shared Package
ML20072U060 List:
References
83-142, NUDOCS 8304110183
Download: ML20072U055 (2)


LER-2082-175, Forwards LER 82-175/01T-0
Event date:
Report date:
3612082175R00 - NRC Website

text

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U.S. Nuclear Regulatory Commission office of Inspection and Enforcement Region V 1450 Maria Lane, suite 210 Walnut Creek, California 94596-5368 Attention: Mr. R. H. Engelken, Regional Administrator

Dear Sir:

Subject:

Docket No. 50-361 Licensee Event Report No.82-175 San Onofre Nuclear Generating Station, Unit 2 Pursuant to Section 6.9.1.12.i of Appendix A, Technical Specifications to Facility Operating License NPF-10 for San Onofre Unit 2, this submittal provides the required written report and a copy of Licensee Event Report (LER) involving the Reactor Protection System (RPS).

During the investigation of the failures of reactor Trip Circuit Breakers (TCB's) reported in LER 83-019 (Docket No. 50-361) and LER 83-023 (Docket No. 50-362), a review of past Work orders and Non-Conformance Reports (NCR's) was performed to identify those we believe are reportable.

Enclosed LER 82-175 addresses a. reportable failure of TCB's at Unit 2 prior to the-March 8, 1983 failures reported in LER .83-019.

If there are any questions, please contact me.

Sincerely, 4I ,

l

Enclosure:

LER 82-175 110183 830325 k'ADOCK 05000061 S- PDR z M

R. H.-'Engolken March 25, 1983-cc: A.F. Chaffee (USNRC Resident Inspector, Units 2 and 3)

R.J.-Pate (USNRC Resident Inspector, Units 2 and 3)

U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Office of Management Information and Program Control (MIPC)

Institute of Nuclear Power Operations (INPO)

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