05000272/LER-1981-031, Forwards LER 81-031/01T-0.Detailed Event Analysis Encl

Forwards LER 81-031/01T-0.Detailed Event Analysis Encl

ML18086A241
Person / Time
Site:	Salem
Issue date:	04/06/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18086A243	List: 05000272/LER-1981-031, Forwards LER 81-031/01T-0.Detailed Event Analysis Encl 05000272/LER-1981-031-01, /01T-0:on 810324,containment Fan Coil Unit 12 Declared Inoperable in Order to Replace Leaking Nipple in Svc Water Outlet Drain Line.Caused by Pinhole Leak in Weld Connecting Carbon Steel Nipple to Stainless Steel Coupling
References
NUDOCS 8104130259
Download: ML18086A241 (2)

LER-1981-031, Forwards LER 81-031/01T-0.Detailed Event Analysis Encl

Event date:
Report date:
2721981031R00 - NRC Website

text

PSEG Public Service Electric and Gas Company 80 Park Plaza Newark. N.J. 07101 Phone 201/430-7000 Mr. Boyce H. Grier Director of USNRC April 6, 1981 Off ice of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 81-31/0lT Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 81-31/0lT.

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

Sincerely yours,

/#Ilk~;

R. A. Uqeritz General Manager -

Nuclear Production CC:

Director, Office of Inspection and Enforcement (40 copies)

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

-/

Report Number:

Report Date:

Occurrence Date:

• 81-31/0lT April 6, 1981 3/24/81 Facility:

Salem Generating Station - Unit 1 Public Service Electric & Gas Company Hancocks Bridqe, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Containment Cooling System -

No. 12 Fan Coil Unit CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 -

Rx Power 100% - Unit Load 1130 MW DESCRIPTION OF OCCURRENCE:

During normal operation on March 24, 1981, the No. 12 Containment Fan Coil Unit was declared inoperable in order to replace a leaking nipple (- 1 gpm) in the service water outlet drain line of the unit.

Action Statement 3.6.2.3 was entered at 1615 hours0.0187 days <br />0.449 hours <br />0.00267 weeks <br />6.145075e-4 months <br />.

IAW NRC IE Bulletin 80-24, the NRC was notified of this event at 1634 hours0.0189 days <br />0.454 hours <br />0.0027 weeks <br />6.21737e-4 months <br />.

This occurrence constituted abnormal degradation of the containment boundary IAW Technical Specification 6.9.1.8.c.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment Failure -

A pinhole leak was discovered in the weld connecting the carbon steel nipple to a stainless steel coupling in the unit's outlet drain line.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.6.2.3 requires that with one group of Containment Cooling Fans inoperable, restore the inoperable fan group to operable status within seven days or be in hot standby within the next six hours and in cold shutdown within the following thirty hours.

CORRECTIVE ACTION

The weld was reworked requiring the nipple to be replaced in kind.

FAILURE DATA:

M. J. Doyle Company 3/4" x 3" carbon steel nipple Prepared By w~ J. Steele SORC Meeting No.

81-27 Map ger -

Salem enerating Station I..'