05000373/LER-1982-093, Forwards LER 82-093/03L-0.Detailed Event Analysis Encl

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Forwards LER 82-093/03L-0.Detailed Event Analysis Encl
ML20071M760
Person / Time
Site: LaSalle Constellation icon.png
Issue date: 09/20/1982
From: Diederich G
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20071M762 List:
References
NUDOCS 8209270231
Download: ML20071M760 (2)


LER-2082-093, Forwards LER 82-093/03L-0.Detailed Event Analysis Encl
Event date:
Report date:
3732082093R00 - NRC Website

text

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s Commonw::lth Edison

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- p f Rural Route 01, Box 220

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7 Marseilles, Illinois 61341

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/ Telephone 815/357-6761 September 20, 1982 James G. Keppler Regional Administrator Directorate of Regulatory Operations, Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Dear Sir:

Reportable Occurrence Report #82-093/03L-0 Docket #050-373 is being submitted to your office in accordance with LaSalle County Nuclear Power Station Technical Specification 6.6.B.2.(b), conditions leading to operation in a degraded mode permitted by a limiting condition for operation or plant shutdown required by a limiting condition for operation.

G J. Diederich Superintendent LaSalle County Station GJD/GW/lrw Enclosure cc: Director of Inspection & Enforcement Director of Management Information & Program Control x U.S. NRC Document Management Branch j' Inpo-Records Center File /NRC k

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8209270231 820920 PDR ADOCK 05000373 SEP 2 21982 S PDR

9 I. LER NUMBER: 82-093/03L-0 II. LASALLE COUNTY STATION: UNIT 1 III. DOCKET NUMBER: 050-373 IV. EVENT DESCRIPTION ,

On August 21, 1982, during a RCIC inspection, it was found that the RCIC turbine was leaking oil from its sight glass. The oil level could not be naintained in the turbine. This occurred while in condition 2 and the RCIC system was declared inoperable in accordance with Technical Specifi-cation 3.7.3.

V. PROBABLE CONSEQUENCES OF THE OCCURRENCE At the time of the occurrence LaSalle Unit 1 was undergoing start-up testing and other ECCf, systems were operable. Safe operation of the Unit was maintained at all times.

VI. CAUSE The RCIC turbine sight glass gaskets were worn and caused the oil to leak. The gaskets were manufactured by Jacoby Tarbox.

VII. CORRECTIVE ACTIONS A work request was written to replace the sight glass gaskets. The RCIC turbine was declared operational on August 23,1982 at 2000.

Diane L. Kay Prepared by t

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