05000361/LER-1982-093, Forwards LER 82-093/03L-0.Detailed Event Analysis Submitted

Forwards LER 82-093/03L-0.Detailed Event Analysis Submitted

ML20063N200
Person / Time
Site:	San Onofre
Issue date:	09/07/1982
From:	Ray H SOUTHERN CALIFORNIA EDISON CO.
To:	Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
Shared Package
ML20063N201	List: 05000361/LER-1982-093, Forwards LER 82-093/03L-0.Detailed Event Analysis Submitted
References
NUDOCS 8209200086
Download: ML20063N200 (2)

LER-1982-093, Forwards LER 82-093/03L-0.Detailed Event Analysis Submitted

Event date:
Report date:
3611982093R00 - NRC Website

text

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H. B. R AY inggpso%g ST ATION M AN AGE R 1714)492-7700 September 7, 1982 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 Adminsitrator

Dear Sir:

Subject: Docket No. 50-361 30-Day Report Licensee Event Report No.82-093 San Onofre Nuclear Generating Station, Unit 2 This submittal is in accordance with the reporting requirements of Section 6.9.1.13b of Appendix A to Facility Operating License, NPF-10.

It describes a reportable condition involving Limiting Condition for Operation (LCO) 3.3.2 associated with the Toxic Gas Isolation System (TGIS).

A completed copy of LER 82-093 is enclosed.

On August 8, 1982, while in Mode 3 during routine shift surveillance, Channel B butane analyzer was found to be malfunctioning. The analyzer was declared inoperable at 0800 and LC0 3.3.2, Table 3.3 Action 14 was initiated.

Subsequent investigation revealed that analyzer malfunctioning was due l

to a faulty pressure regulator. This regulator was replaced and the analyzer was returned to service at 1658 on August 8,1982.

Since the redundant analyzer remained operable throughout the event, there was no impact on the health and safety of plant personnel or the public.

82092000868209$3 M@

DR ADOCK 05000 g

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R. H. Engelken September 7, 1982 If there are any questions regarding the above, please contact me.

Sincerely.

H15hy l'TYl%rk Enclosure: 82-093 cc:

A. E. Chaffee (USNRC Resident Inspector, San Onofre Unit 2)

U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Office of Management Information & Program Control Institute of Nuclear Power Operations