05000311/LER-1981-115, Forwards LER 81-115/01T-0.Detailed Event Analysis Encl

Forwards LER 81-115/01T-0.Detailed Event Analysis Encl

ML20039A812
Person / Time
Site:	Salem
Issue date:	12/09/1981
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20039A813	List: 05000311/LER-1981-115, Forwards LER 81-115/01T-0.Detailed Event Analysis Encl 05000311/LER-1981-115-01, /01T-0:on 811125,svc Water Found Leaking at 0.5 Gpm from Second from Top Primary Cooling Coil on Containment Fan Coil Unit (Cfcu).Cfcu Declared Inoperable on 811127. Caused by Equipment Failure.Coil Repaired
References
NUDOCS 8112210325
Download: ML20039A812 (3)

LER-1981-115, Forwards LER 81-115/01T-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981115R00 - NRC Website

text

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O PSEG PuHic Service Electric and Gas Company PT w 168 Hancocks Bridge, New Jersey 08038 Salem Generating Station December 9, 1981 cA 4

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fMgg Mr.

R. C.

Haynes

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(,Ngop7 Director of USNRC j' V 4

Office of Inspection and Enforcement

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Region 1 3

3 631 Park Avenue M

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s King of Prussia, Pennsylvania 19406

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Dear Mr. Haynes:

si, LICENSE NO. DPR-75 DOCKET NO. 50-311-REPORTABLE OCCURRENCE 81-ll5/0lT Pursuant.to the requirements of-Salem Generating Station Unit No. 2, Technical Specifications, Section 6.9.1.'8.c, we are submitting Licensee Event Report for Reportable Occurrence 81-115/OlT.

This report is required within

- fourteen (14) days of the occurrence.

Sincerely yours, llf btfcbMG H. J. Midura-General Manager -

Salem Operations CC:

Distribution f0h

- The Energy People 952ia9n2witteo

Report Number:

81-ll5/OlT Report Date:

12-9-81 Occurrence Date:

11-27-81 Facility:

Salem Generating Station, Unit 2 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Containment Fan Coil Unit - Service Water Leak.

This report was initiated by Incident Report 81-480.

CONDITIONS PRIOR TO OCCURRENCE:

M?de 1 - Rx Power 50% - Unit Load 560 MWe DESCRIPTION OF OCCURRENCE:

On November 25, 1981, during a routine containment inspection, an operator discovered service water leaking from the second from top primary cooling coil, on No. 24 Containment Fan Coil Unit (CFCU),

at a rate of approximately 0.5 gallons per minute.

The CFCU was isolated by closing the inlet and outlet valves from the control room, but remained operable and capable of functioning adequately under emergency conditions.

In accordance with NRC IE Bulletin 80-24, the NRC was notified of the service water leak in contain-ment by telephone, with written confirmation transmitted within the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

No. 24 CFCU was declared inoperable and Action Statement 3.6.2.3.a was entered at 0343 hours0.00397 days <br />0.0953 hours <br />5.671296e-4 weeks <br />1.305115e-4 months <br />, November 27, 1981.

This occurrence constituted operation in a degraded mode in accord-ance with Technical Specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment failure.

The service water leak was due to a pinhole leak in the Lecond from top primary coil on No. 24 CFCU.

ANALYSIS OF OCCURRENCE:

Technical Specification of 3.6.2.3.a requires:

With one group of containment coolit.g fans inoperable and both Containment Spray Systems operable, restore the inoperable group of fans to operable st<.'us within 7 days or be in 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 />.

I LER 81-ll5/OlT CORRECTIVE ACTION:

The second from top primary coil on No. 24 CFCU was satisfac-torily repaired with Belzona metal filler.

It was tested satisfactorily and returned to service.

At 1738 hours0.0201 days <br />0.483 hours <br />0.00287 weeks <br />6.61309e-4 months <br />, November 28, 1981, No. 24 CFCU was declared operable and Action Statement 3.6.2. 3.a was terminated.

A design change request has been submitted to replace this cooler during the first refueling outage; however, no supplementary report will be issued.

FAILURE DATA:

Westinghouse Coil Cooler Spin No. RCMECF Prepared By F.

Dickey

/

W General Mahager -

Salem Operations SORC Meeting No.81-124 i

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