05000311/LER-1980-020, Forwards LER 80-020/03L-0

Forwards LER 80-020/03L-0

ML18082B011
Person / Time
Site:	Salem
Issue date:	08/28/1980
From:	Librizzi F Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18082B012	List: 05000311/LER-1980-020, Forwards LER 80-020/03L-0 05000311/LER-1980-020-03, /03L-0:on 800729,during Routine Operation, Pressurizer Pressure Channel 3 Would Not Respond to Pressure Changes in Sys.Caused by Shorted Wire on Power Supply. Power Supply Repaired
References
NUDOCS 8009030613
Download: ML18082B011 (2)

LER-1980-020, Forwards LER 80-020/03L-0

Event date:
Report date:
3111980020R00 - NRC Website

text

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CPS~G Public Service Electric and Gas Company 80 Park Place Newark. N.J. 07101 Phone 201 /430-7000 Mr. Boyce H. Grier Director of USNRC August 28, 1980 Off ice of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 80-20/03L Pursuant to the requirements of Salem Generating Station Unit No. 2 Technical Specifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 80-20/03L.

This report is required within thirty (30) days of the occurrence.

Sincerely yours,

• "j ~ l..,, L t ---..,

/

1 )

F. P. Libriz'zi General Manager -

Electric Production CC:

Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control (3 copies) 8009030 613 95-2001 (200MJ 2* 78

.v Rerpot Number:

80-20/03L Report Date:

8/28/80 Occurrence Date:

7/29/80 and 8/01/80 Facility:

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

Pressurizer Pressure Channel III Inoperable CONDITIONS PRIOR TO OCCURRENCE:

Mode 3 DESCRIPTION OF OCCURRENCE:

During routine operation on July 29, 1980, the above pressure channel would not respond to changes in system pressure.

On August 1, 1980, the above pressure channel failed low.

The channel was declared inoperable at 0610 hours0.00706 days <br />0.169 hours <br />0.00101 weeks <br />2.32105e-4 months <br /> on July 29, 1980 and also at 1529 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.817845e-4 months <br /> on August 1, 1980.

Action Statement 3.3.2.1 was entered which requires that with an ESFAS instrumentation channel inoperable, operation may proceed until performance of the next required channel functional test, provided the inoperable channel is placed in the tripped condition* within one hour.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment Failure.

ANALYSIS OF OCCURRENCE:

On both occasions the associated bistables were placed in the tripped condition within one hour.

CORRECTIVE ACTION

On July 29, 1980, the investigation revealed a shorted wire in the power supply.

The power supply was repaired, tested satisfactorily and the Action Statement terminated at 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br />.

On August 1, 1980, a comparator failed.

The comparator was replaced, tested satisfactorily and the Action Statement terminated at 1849 hours0.0214 days <br />0.514 hours <br />0.00306 weeks <br />7.035445e-4 months <br />.

FAILURE DATA:

Hagan Control Module Prepared By R. J. Newman

_/~_,{.,~4~~LJ' Manager~ern Generating Station SORC Meeting No.

66-80