05000311/LER-1981-019, Forwards LER 81-019/03L-0.Detailed Event Analysis Encl

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Forwards LER 81-019/03L-0.Detailed Event Analysis Encl
ML20063G497
Person / Time
Site: Salem PSEG icon.png
Issue date: 06/16/1981
From: Uderitz R
Public Service Enterprise Group
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20063G504 List:
References
NUDOCS 8209010030
Download: ML20063G497 (3)


LER-2081-019, Forwards LER 81-019/03L-0.Detailed Event Analysis Encl
Event date:
Report date:
3112081019R00 - NRC Website

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Pachc Se vice Elecmc and Gas Company 80 Park Plaza Newark, N.J 07101 Phone 201/430-7000 L_A-12(O FND2 ,

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June 16, 1981 Mr. Boyce H. Grier Director of USNRC Office 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 81-19/03L 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 81-19/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours, k

R. A. Uderitt t

General Manager -

Nuclear Production CC: Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control (3 copies) 8209010030 810616 PDR ADOCK 05000311 S PDR

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Raport Number: 81-19/03L Report Date: June 16, 1981 Occurrence Date: 5/17/81 Facility: Salem Generating Station, Unit 2 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Rod Position Indication System - Indicator Failure CONDITIONS PRIOR TO OCCURRENCE:

Mode 2 - Rx Power 0% - Unit Load 0 MW DESCRIPTION OF OCCURRENCE:

The control operator noticed the Rod Position Indicator for rod 1B4 was off scale. Action Statement 3.1.3.2.1 was entered at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> on May 17, 1981.

This occurrence constituted operation in a degraded mode IAW Technical Specification 6.9.1.9b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The Signal Conditioning Module in the Rod Position Indication Cabinet was out of calibration.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.1.3.2.1 requires that with a maximum of one Rod Position Indicator per bank inoperable determine the position of the non-indicating rod indirectly by the moveable incore detectors at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and immediately after any motion of the non-indicating rod which exceeds 24 steps in one direction since the last determination of the rod position, or reduce power to less than 50%

of rated thermal power within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

The unit was below 50% rated power during this entire occurrence.

LER 81-19/03L 6/16/81 CORRECTIVE ACTION:

The Signal Conditioning Module was recalibrated, and the system tested satisfactorily. Action Statement 3.1.3.2.1 was terminated at 1610 hours0.0186 days <br />0.447 hours <br />0.00266 weeks <br />6.12605e-4 months <br /> on May 18, 1981.

FAILURE DATA:

Not Applicable Prepared By J. J. Espey I s-- -

ManagerV- S31em Genefating Station SORC Meeting No. 81-50

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