05000272/LER-1981-109, Forwards LER 81-109/01T-0.Detailed Event Analysis Encl

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Forwards LER 81-109/01T-0.Detailed Event Analysis Encl
ML20039A808
Person / Time
Site: Salem PSEG icon.png
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
ML20039A809 List:
References
NUDOCS 8112210322
Download: ML20039A808 (3)
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LER-1981-109, Forwards LER 81-109/01T-0.Detailed Event Analysis Encl
Event date:
Report date:
2721981109R00 - NRC Website
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- Public Service Electric and Gas Company. P.O. Box 168 Hancocks Bridge, New Jersey 08038 Salem Generating Station December 9, 1981

.Mr.

R.

C. Haynes

. Director of USNRC Office of Inspection and Enforcement Region 1 N

631' Park Avenue cf D

King of Prussia, Pennsylvania 19406 49)

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y Dear Mr. Haynes:-

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LICENSE NO. DPR-70 Q

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REPORTABLE OCCURRENCE 81-109/0lT c/%

Pursuant to-the requirements of Salem Generating Stati Unit No. 1 Technical Specifications, Section 6.9.1.8.c, we are submitting Licensee Event Report for Reportable Occurrence 81-139/0lT.

This report-is required within fourteen (14) days of the occurrence.

Sincerely yours, lrf f, %

$b"W H.

J. Midura General Manager -

Salem Operations CC:

Distribution i

8112210322 811209 i bAb PDR ADOCK 050 72 5.

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Report Number:

81-109/0lT Report Date:

12-9-81 Occurrence Date:

11-29-81 Facility:

Salem Generating Station, Unit 1 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 81-482.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 69% - Unit Load 710 MWe DESCRIPTION OF OCCURRENCE:

On November 28, 1981, during a routine containment inspection, an operator discovered service water leaking from the fourth from bottom primary cooling coil, on No. 12 Containment Fan Coil Unit (CFCU), at a rate of approximately 0.8 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 containment 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. 12 CFCU was declared inoperable and Action Statement 3.6.2.3.a was entered at 1119 hours0.013 days <br />0.311 hours <br />0.00185 weeks <br />4.257795e-4 months <br />, November 29, 1981.

This occurrence constituted operation in a degraded mode in accordance 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 fourth from bottom primary coil on No. 12 CFCU.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.6.2.3.a requires:

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With one group of containment cooling fans inoperable and both Containment Spray Systems operable, restore the inop-erable group of fans to operable status 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 shut-down within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

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' LER 81-109/0lT

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CORRECTIVE ACTION

The fourth from bottom primary coil on No. 12 CFCU was satisfactorily repaired with Belzona metal filler.

The CFCU was tested satisfactorily and returned to service.

At 1120 hours0.013 days <br />0.311 hours <br />0.00185 weeks <br />4.2616e-4 months <br />, December 1, 1981, No. 12 CFCU was declared operable and Action Statement 3.6.2.3.a was terminated.

Replacement coolers are being received on site and are scheduled to be installed during the upcoming refueling outage; however, no supplementary report will be issued.

FAILURE DATA:

Westinghouse Coil Cooler Spin No. RCMECF Prepared By F.

Dickey

/t hp cIvC Generdl Mahager -

Salem Operations81-124 SORC Meeting No.,

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