05000272/LER-1981-021, Forwards LER 81-021/03L-0.Detailed Event Analysis Encl

Forwards LER 81-021/03L-0.Detailed Event Analysis Encl

ML18085B100
Person / Time
Site:	Salem
Issue date:	03/20/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18085B101	List: 05000272/LER-1981-021, Forwards LER 81-021/03L-0.Detailed Event Analysis Encl 05000272/LER-1981-021-03, /03L-0:on 810227,boric Acid Tanks 11 & 12 Declared Inoperable.Caused by Loss of Level Indication for Both Tanks Due to Sensing Lines Plugged W/Boric Acid. Transmitter Sensing Lines Cleaned
References
NUDOCS 8103310724
Download: ML18085B100 (2)

LER-1981-021, Forwards LER 81-021/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
2721981021R00 - NRC Website

text

' I PS~G Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 Phone 201/430-7000 Mr. Boyce H. Grier Director of USNRC March 20, 1981 Off ice of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear.Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 81-21/03L Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 81-21/03L.

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

Sincerely yours,

., /~.. - /

_<f.;-~

/L. !/. /pfi--,_;~ij<

'R. A. Uderi-tz"-

General Manager -

Nuclear Production CC:

Director, Office of Inspection and Enforcement (30 copies)

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

CS'.t 0 3 3 1 0 1;."~i

Report Number:

Report Date:

Occurrence Date:

81-21/03L March 20, 1981 2/27/81 Facility:

Salem Generating Station -

Unit 1 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Loss of Level Indication on Nos. 11 and 12 Boric Acid Tanks CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 -

Rx Power 100% - Unit Load 1120 MW DESCRIPTION OF OCCURRENCE:

During normal operations at 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> on February 27, 1981, Nos. 11 and 12 Boric Acid Tanks were declared inoperable because of the loss of level indication for both tanks.

Action Statement 3.l.2.8a was entered at this time.

This occurrence constituted operation in a degraded mode IAW TS 6.9.l.9b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The sensing lines of both level transmitters had become plugged with boric acid.

ANALYSIS OF OCCURRENCE:

Technical Specifications require that with the Boric Acid Storage System inoperable, restore the storage system to operable status within the next 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 six hours and borated to a shutdown margin equivalent to at least 1% 6 K/K at 200°F; restore the Boric Acid Storage System to operable status within the next seven 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 />.

CORRECTIVE ACTION

Both transmitter sensing lines were cleaned by blowing them down with pressurized nitrogen gas.

The Action Statement was terminated at 1658 hours0.0192 days <br />0.461 hours <br />0.00274 weeks <br />6.30869e-4 months <br />.

FAILURE DATA:

Not Applicable Prepared By W. J. Steele Manager -

~alem Generating Station SORC Meeting No.

81-19