05000311/LER-1981-103, Forwards LER 81-103/03L-0.Detailed Event Analysis Encl

Forwards LER 81-103/03L-0.Detailed Event Analysis Encl

ML20031H021
Person / Time
Site:	Salem
Issue date:	10/15/1981
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20031H022	List: 05000311/LER-1981-103, Forwards LER 81-103/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-103-03, /03L-0:on 810918,low Svc Water Flow Indication Noted on Containment Fan Coil Unit 24.Caused by Flow Transmitter Being Plugged W/Silt.Transmitter Sensing Lines Blown Down to Remove Silt & Tested Satisfactorily
References
NUDOCS 8110270064
Download: ML20031H021 (3)

LER-1981-103, Forwards LER 81-103/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981103R00 - NRC Website

text

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/.ER

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~'O PSEG Public Service Electnc and Gas Company P.O. Box #168 Hancocks Bridge, New Jersey 08038 1

October 15, 1981 Mr.

R.

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Haynes Director of USNRC

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/9 Office of Inspection and Enforcement

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631 Park Avenue

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King of Prussia, Pennsylvania 19406 s

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Dear Mr. Haynes:

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LICENSE NO. DPR-75 DOCKET NO. 50 311 REPORTABLE OCCURRENCE 81-103/03L Pursuant to the requirements of Salem Generating Station Unit No.

2, Tachnical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for I; portable Occurrence 81-103/03L.

This report is required within thirty (30) days of the occurrence.

Sincerely yours,

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H. J. Midura General Manager -

i Salem 0serations CC:

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8110270064j Q g

PLR ADOCK FDR.

s The Energy Peop'9 m r n w,c n

s Report Number:

81-103/03L Report Date:

10-15-81 Occurrence Date:

9-18-81 Facility:

Salem Generating Station, Unit 2 Public Service Electr;c & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFi?ATION OF OCCURRENCE:

Containment Fan Coil Unit - Inoperable - Low Service Water Flow.

This report was initiated by incident report 81-379.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 90% - Unit Load 1040 MWe DESCRIPTION OF OCCURRENCE:

On September 18, 1981 the control room operator noticed low service water flow indication on No. 24 Containment Fan Coil Unit (CFCU).

No. 24 CFCU was declared inoperable and action statement 3.6.2.3.a was entered at 0600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br />.

This occurrence constituted operation in a degraded mode in accordance with technical specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of the service water low flow indication was the flow transmitter was plugged with silt.

ANALYSIS OF OCCURRENCE:

Technical specification 3.6.2.3.a requires:

With one group of containment cooling fans inoperable and both containment spray systems operable, restore the inoperable group of cooling fans to operable status within 7 days or be in at least hot standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

CORRECTIVE ACTION

The flow transmitter sensing lines were blown down to remove the silt.

The transmitter was tested satisfactorily and returned to service.

At 0940 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.5767e-4 months <br />, September 18, 1981 action statement 3.6.2.3.a was terminated.

A program has been instituted to blow down all transmitters every week.

r LER 81-103/03L FAILURE DATA:

Fischer and Porter Co.

Differential-Pressure Flow Transmitter Model 10B2495 Prepared By F.

Dickey

/ ! 9, / (_'[ e b V Manager

' Salem Generating Station SORC Meeting No.81-105