05000272/LER-1981-084, Forwards LER 81-084/01T-0.Detailed Event Analysis Encl

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Forwards LER 81-084/01T-0.Detailed Event Analysis Encl
ML20031D863
Person / Time
Site: Salem PSEG icon.png
Issue date: 10/02/1981
From: Midura H
Public Service Enterprise Group
To: Haynes R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20031D864 List:
References
NUDOCS 8110140319
Download: ML20031D863 (3)
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LER-1981-084, Forwards LER 81-084/01T-0.Detailed Event Analysis Encl
Event date:
Report date:
2721981084R00 - NRC Website
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O PSEG Pubhc Service Electnc and Gas Company P.O Box #168 Hancocks Bndge, New Jersey 08038 October 2, 1981

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Mr.

R.

C.

Haynes

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g Director of USNRC Q

fl Office of Inspection and Enforcement g

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3 00b 8 Region 1 6., 8' g /gg " g~.

l 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. tiaynes:

LICENSE NO. DPR-70 N

DOCKET NO. 50-272 REPORTABLE OCCURRENCE 81-84/0lT Pursuant to the requirements of Salem Generating Station Unit No.

1, Technical Specifications, Section 6.9.1.8.c, we are submitting Licensee Event Report for Reportable Occurrence 81-84/01T.

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

Sincerely yours,

//- f fN H. J. Midura General Manager -

Salem Operations CC:

R. A.

Uderitz General Manager - Nuclear Production Director, Office of Inspection and Enforcement (40 copies)

Director, Office of Management Information and Program Control (3 copies)

%FV I 8110140319 011002' PDR ADOCK 05000272,PIC S

PDR' 95 2189 PJAl 10 79

o a

Report Numbar:

81-84/01T Report Date:

10-2-81 Occurrence Date:

9-28-81 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.

l This report was initiated by Incident Report 81-391.

CONDITIONS PRIOR TO OCCURRENCE:

i Mode 1 - Rx Power 83% - Unit Load 910 MWe 4

DESCRIPTION OF OCCURRENCE:

On September 28, 1981, during a routine containment inspection, an operator discovered service water leaking from the bottom primary coil on No. 11 containment fan coil unit (CFCU).

In accordance with NRC IE Balletin 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. 11 CFCU was 7

declared inoperable and action statement 3.6.2.3.a was entered at 1105 hours0.0128 days <br />0.307 hours <br />0.00183 weeks <br />4.204525e-4 months <br />, September 28, 1981.

This occurrence constituted operation in a degraded mode in accord-ance with technical specification 6.9.1.9.b.

DESIGNATION OF AP9ARENT CAUSE OF OCCURRENCE:

Equipment failure.

The service water leak was due to a leak in the bottom primary cooling coil on No. 11 CFCU.

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 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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o LER 81-84/0lT CORRECTIVE ACTION:

The bottom primary coil on No. 11 CFCU was isolated from the remainder of the coils by installing a blank flange insert between the service water inlet and outlet flanges.

As per engineering analysis, it is possible to isolate an individual cooler in this manner while retaining acceptable efficiency of the cooler.

This cooler will be replaced during a future outage; however, no supplementary report will be issued.

No. 11 CFCU was tested satisfactorily and returned to service.

Action statement 3.6.2.3.a was terminated at 2134 hours0.0247 days <br />0.593 hours <br />0.00353 weeks <br />8.11987e-4 months <br />, September 28, 1981.

FAILURE DATA:

Westinghouse Coil Cooler Spin No. RCMECF l

Prepared By F.

Dickey

/c

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  • 'd'N>

Manager - Salem Generating Statiod-SORC Meeting No.81-100

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