05000311/LER-1982-071, Forwards LER 82-071/03L-0.Detailed Event Analysis Encl

Forwards LER 82-071/03L-0.Detailed Event Analysis Encl

ML20063L182
Person / Time
Site:	Salem
Issue date:	08/27/1982
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20063L184	List: 05000311/LER-1982-071, Forwards LER 82-071/03L-0.Detailed Event Analysis Encl 05000311/LER-1982-071-03, /03L-0:on 820729,nitrogen Pressure in Accumulator 22 Dropped Below Tech Spec Pressure of 595.5 Psig.Caused by Operator Error.Accumulator Nitrogen Pressure Restored to Correct Pressure
References
NUDOCS 8209080661
Download: ML20063L182 (3)

LER-1982-071, Forwards LER 82-071/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111982071R00 - NRC Website

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>SEG Public Service Electric and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 l

Salem Generating station August 27, 1982 Mr.

R.

C. Haynes Regional Administrator USNRC Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406 j

Dear Mr. Haynes:

l LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 82-071/03L 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 82-071/03L.

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

Sincerely yours,

$t'Y ep H.

J.

Midura General Manager -

Salem Operations FD:ks

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The Energy People

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.I Report Number:

82-071/03L Report Date:

08-27-82 Occurrence Date:

07-29-82 Facility:

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

No. 22 Accumulator Below Minimum Pressure.

This report was initiated by Incident Report 82-201.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 81% - Unit Load 860 MWe.

DESCRIPTION OF OCCURRENCE:

On July 29, 1982, the nitrogen pressure in No. 22 Accumulator dropped below the minimum technical specification pressure of 595.5 psig.

At 0740 hours0.00856 days <br />0.206 hours <br />0.00122 weeks <br />2.8157e-4 months <br />, No. 22 Accumulator was declared inoperable and Action Statement 3.5.1.d was entered.

This occurrence constituted operation in a degraded mode in accordance with-Technical Specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause was operator error.

ANALYSIS OF OCCURRENCE:

i The accumulators are designed to automatically inject borated water into the primary system to rapidly cool the core in the event of a system rupture.

Nitrogen pressure below normal would reduce the effectiveness of an accumulator.

However, four accumulators in the system provide the proper redundancy to protect against that possibility.

At no time was the safety of the environment and general public in jeopardy.

LER 82-071/03L,

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j ANALYSIS OF OCCURRENCE:l Technical Specification 3.5.1.d requires:

With one accumulator inoperable, except as a result of a closed isolation valve, restore the inoperable accumulator to operable status within one hour or be in hot shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, j

CORRECTIVE ACTION

The accumulator nitrogen pressure was immediately restored to above 595.5 psig.

At 0745 hours0.00862 days <br />0.207 hours <br />0.00123 weeks <br />2.834725e-4 months <br />, No. 22 Accumulator was declared operable and Action Statement 3.5.1.d was terminated.

The control operator was counseled on the proper control of accumulator nitrogen pressure.

i FAILURE DATA:

Not Applicable i

Prepared By F.

Dickey

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t' me v V General Man 6ger -

Salem Operations 4

SORC Meeting No.

82-79 1

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