05000311/LER-1981-063, Forwards LER 81-063/03L-0.Detailed Event Analysis Encl

Forwards LER 81-063/03L-0.Detailed Event Analysis Encl

ML20010D013
Person / Time
Site:	Salem
Issue date:	08/13/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010D014	List: 05000311/LER-1981-063, Forwards LER 81-063/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-063-03, /03L-0:on 810714,steam Generator 22 Feed Flow Channel 2 & Steam Generator 24 Steam Flow Channel 2 Declared Inoperable Due to Erratic Operation.Caused by Transmitter Sensing Line Leaks at Two Instrument Tubing Fittings
References
NUDOCS 8108210377
Download: ML20010D013 (3)

LER-1981-063, Forwards LER 81-063/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981063R00 - NRC Website

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Public Service Electric and Gas Company 80 Park Plaza Newark, N.J 07101 Phone 201/430-7000 i

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August 13, 1981 Mr. Boyce H.

Grier Director of USNRC Office of Inspection and Enforcement Region ~l 631 Park-Avenue King of Prussia,' Pennsylvania 19406

Dear Mr. Grie2. :

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-63/03L Pursuant to the requirements of Salem Generating Station Unit No. 2 Technical Specifications,'Section 6.9.1.S.b, we are submitting Licensee Event Report.for Reportable Occurrence 81-63/03L.

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

sincerel; yours, l

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((ht kh-General Manager -

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R. A. Uderit,z I

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Nuclear Production 9-l U'

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Director,-Office of Inspection and Enforcement (30 copies)

Director, Officc. of Management Information and Program Control (3 copies)

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8108210377 810813 PDR ADOCK 05000311 S

PDR-The Energy People 95 2001 (400M) 181

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r Report Number:

81-63/03L

- Report Date:

August 13, 1981 Occurrence Date:

7-14-81 Facility:

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

Reactor Trip System Instrumentation

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No. 22 Steam Generator. Feed. Flow Channel 2 and No. 24. Steam Generator Steam Flow Channel 2 - Inoperable.

This report was initiated by Incident Report 21-252.

CONDITIONS PRIOR TO OCCURRENCB:

Mode 1 - Rx Power 30% - Unit Load 220 MWe

- DESCRIPTION OF OCCURRENCE:

At 1030 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.91915e-4 months <br />, July 14, 1981, during routine channel checks, No. 22 steam generator feed flow channel 2 and No. 24 steam generator steam flow channel 2 were declared inoperable due to erratic operation.

Action No.

7, for technical specification LCO 3.3.1, table 3.3-1 was entered and the incperabli protection channels were placed in the tripped condition within the required 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

This occurrence constituted opertion in a degraded mode in accord-ance with technical specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment failure.

The erratic operation of the channels was due to transmitter sensing line leaks at 2 instrument tubing fittings.

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ANALYSIS Ot' OCCURRENCE:

Technical specificat on 3.3.1 action 7 requires with:

The number of operable channels one less than the total 3

number of channels, startup and/or power operation may proceed until performance of the'next required channel functional test provided the inoperable channel is placed 7

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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 />.

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~LER 81-63/03L 8/13/81 CORRECTIVE-ACTION:

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On July 14, 1981,.the instrument tubing fittings were tightened and

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- the leakage stopped on~both protection channels.

The channels were returned to service.and performed properly.

Action No. 7, for technical specification LCO 3.3;1, table 3.3-1, was. terminated at 1900 hours0.022 days <br />0.528 hours <br />0.00314 weeks <br />7.2295e-4 months <br />.

l FAILURE DATA:

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Not Applicable Prepared By F. Dickey l

Manager - Safem Generating Station SORC Meeting No.

81-74 I

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