05000272/LER-1981-077, Forwards LER 81-077/01T-0.Detailed Event Analysis Encl

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Forwards LER 81-077/01T-0.Detailed Event Analysis Encl
ML20010G451
Person / Time
Site: Salem PSEG icon.png
Issue date: 09/08/1981
From: Midura H
Public Service Enterprise Group
To: Haynes R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010G452 List:
References
NUDOCS 8109210178
Download: ML20010G451 (3)
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LER-1981-077, Forwards LER 81-077/01T-0.Detailed Event Analysis Encl
Event date:
Report date:
2721981077R00 - NRC Website
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text

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O PSEG Public Service Electric ard Gas Company P.O. Box 168 Hancocks Bridge, New Jersey 08038 Salem Generating Station September 8, 1981 9.\\'=rf

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I Mr. R. C, Haynes Director of USNRC l, ;

Office of Inspection and Enforcement j

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Region 1 u,,,

631 Park Avenne King of Prussia, Pennsylvania 19406 5.,

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Dear Mr. Haynes:

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p LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 81-77/0lT Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 81-77/01T.

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

Sincerely yours, lf. -

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H. J. Midura Manager - Salem Generating Station 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)

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9 8109210178 810908 DR ADOCK 05000 g

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e Report Number:

81-77/017 Report Date:

9-8-81 Occurrence Date:

9-2-81 Facility:

Salem Generating Station, Unit 1 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038

_ IDENTIFICATION OF OCCURREUCE:

Containment Fan Coil T: nit - Service Water Leak.

This report was initiated by Incident Report 81-360.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 92% - Unit Load 930 MWe i

DESCRIPTION OF OCCURRENCE:

On September 2, 1981, during a routine containment inspection, an operator.

discovered service water leaking from the secondary cooling coil, fourth from the bottom, on No. 11 containment fan coil unit (CFCU), at a rate of approximately 1 gallon per minute.

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, 11 CFCU was removed from service, and declared inoperable.

Action statement 3.6.2.3.b was entered at 2030 hours0.0235 days <br />0.564 hours <br />0.00336 weeks <br />7.72415e-4 months <br />, September 2, 1981, because No. 14 CFCU was also out of service.

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

DESIGNATION OF APPARENT CAU3E OF OCCURRENCE:

Equipment failure.

The service water leak was due to a pinhole leak in the secondary cell, fourth from the bottom, on No. 11 CFCU.

AJ4ALYSIS OF OCCURRENCE:

Technical Specification 3.6.2.3.b requires with:

Two groups of containment cooling fans inoperable, and both Containment Spray Systems operable, restore at least one group of cooling fans to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> 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 />.

Restore both groups of cooling fans to operable status within 7 days of initial loss 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 />.

LER '81 '17/OlT.

CORRECTIVE ACTION

The secondary cooling coal, fourth from the bottom, on No. 11 CFCU, was repaired.by brazing cver the pinhole leak.

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

Action statement 3.6.2.3.b was terminated at 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br />, September 3, 1981.

FAILURE DATA:

Westinghouse Coil Cooler Spin No. RCMECF Prepared By F. Dic, key kh v

Man &get - Salem Generating Station SORC Meeting No.

81-87 i

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