05000311/LER-1981-034, Forwards LER 81-034/03L-0.Detailed Event Analysis Encl

Forwards LER 81-034/03L-0.Detailed Event Analysis Encl

ML20009A474
Person / Time
Site:	Salem
Issue date:	07/01/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009A475	List: 05000311/LER-1981-034, Forwards LER 81-034/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-034-03, /03L-0:on 810603,during Refill of Boron Injection Tank,Samples Indicated Concentration Less That 20,000 Ppm. Caused by Boron Tank Not Completely Drained Prior to Refill.Tanks Borated to Between 20,000 & 22,500 Ppm
References
NUDOCS 8107130208
Download: ML20009A474 (3)

LER-1981-034, Forwards LER 81-034/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981034R00 - NRC Website

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O'PSEG Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 Phone 201/430 7000 July 1, 1981 Mr. Boyce H. Grier Director of USNRC Office of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406 J

Dear Mr. Grier:

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-34/03L 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 81-34/03L.

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

Sincerely yours, 1

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Uderitz General Manager -

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t Report Number:

81-34/03L Report Date:

I July 1, 1981 Occurrence Date:

6-3-81 Facility:

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

Boric Acid Storage Tank - Out of Specification CONDITIONS PRIOR TO OCCURRENCE:

Mode 3 - Rx Power 0 - Unit Load 0 MWe DESCRIPTION OF OCCURRENCE:

During the recovery from an inadvertant Safety Injection, the Boron Injection Tank was isolated, drained and recirculation flow was re-established to the Boric Acid Storage Tanks.

After the refill was completed, sample analysis indicated the Boric Acid Storage Tank boron concentration was less than 20,000 ppm.

At 1120 hours0.013 days <br />0.311 hours <br />0.00185 weeks <br />4.2616e-4 months <br />, on June 3,

1981, the Boric Acid Storage Tank was declared inoperable and Action Statement 3.1.2.6.a was entered.

This constituted operation in a degraded mode IAW Technical Specifi-cation 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The Boron Injection Tank was not completely drained prior to placing it on recirculation to the Boric Acid Storage Tanks for refill and caused a dilution in boron concentration to less than 20,000 ppm.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.1.2.6.a requires that with the Boric Acid System inoperable; restore the storage system to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least hot standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and borated to a shutdown margin equivalent to at least 1% delta k/k at 200 F; restore the Boric Acid Storage System to operable status within the next 7 days or be in cold shutdown within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

O LER $1-34/03L July 1, 1981

CORRECTIVE ACTION

1 The Boric Acid Storage Tanks were borated to between 20,000 and 22,500 ppm of boron from the Boric Acid Batching Tank.

The Action Statement was terminated at 2229 hours0.0258 days <br />0.619 hours <br />0.00369 weeks <br />8.481345e-4 months <br /> on June 3, 1981.

FAILURE DATA:

Not Applicable i /E _G.

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Prepared By J. J.

Espey f i SORC Meeting No.

81-56 t

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