05000311/LER-1981-092, Forwards LER 81-092/03L-0.Detailed Event Analysis Encl

Forwards LER 81-092/03L-0.Detailed Event Analysis Encl

ML20031B046
Person / Time
Site:	Salem
Issue date:	09/16/1981
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20031B047	List: 05000311/LER-1981-092, Forwards LER 81-092/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-092-03, /03L-0:on 810823,channel 1 Pressurizer Level Was Reading 4% Lower than Other Two Channels.Caused by Channel 1 Transmitter Drifting Out of Calibr.Channel 1 Transmitter 2LT-549 Recalibr,Tested & Returned to Svc
References
NUDOCS 8109280524
Download: ML20031B046 (3)

LER-1981-092, Forwards LER 81-092/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981092R00 - NRC Website

text

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Public Service Electric and Gas Company P.O. Box 168 Hancocks Bridge, New Jersey 08038 Salem Generating Station September 16, 1981

\\32jlr(V1/"b O@,V l[7[ h'n Mr.

R.

C. Haynes W

Director of USNRC Office of Inspection and Enforcement

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Region 1

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King of Prussia, Pennsylvania 19406 9

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Dear Mr. Haynes:

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LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-92/03L Pursuant to the requirements of Salem Generating Station Unit No.

2, Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 81-92/03L.

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

Sincerely yours, 4,

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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 (30 copies)

- 9 Director, Office of Management i

5 Information and Program Control (3 copies) l

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Report Number:

81-92/03L keportDate:

9-16-81 Occurrence Date:

8-23-81 Facility:

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

Pressurizer Level Channel 1 - Inoperable This report was initiated by Incident Report 81-339.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 27% - Unit Load 190 MWe l

DESCRIPTION OF OCCURRENCE:

On August 23, 1981, an operator noticed that the channel 1 pressurizer level was reading 4% lower than the other two channels.

At 1100 hours0.0127 days <br />0.306 hours <br />0.00182 weeks <br />4.1855e-4 months <br /> the channel was declared inoperable, and limiting condition for operation (LCO) 3.3.1, action 7 was entered.

This occurrence constituted operation in a degraded mode in accordance with technical specification 6.9.1.9.b.

I DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The channel 1 transmitter had drifte6 out of calibration.

ANALYSIS OF OCCURRENCE:

LCO 3.3.1, action 7 requires:

With the number of operable channels one less than the total number of channels, start-up and/or power operation may proceed until performance of the next required channel functional test provided the inoperable channel is placed in the tripped condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

CORRECTIVE ACTION

The channel 1 pressurizer level bistable was placed in the tripped condition within one hour.

Channel 1 transmitter 2LT-549 was recalibrated, tested satisfactorily, and returned to service.

At 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />, August 26, 1981, LCO 3.3.1, action 7 was terminated.

.... =. _ -.. _..

LER 81-92/03L- '

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j FAILURE DATA:

l Barton Instrument Co.

Differential Pressure Transmitter-Model 386/J51 1

i Prepared By F.

Dickey

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'SORC Meeting No.

81-92 1

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