05000272/LER-1981-099, Forwards LER 81-099/03L-0.Detailed Event Analysis Encl

Forwards LER 81-099/03L-0.Detailed Event Analysis Encl

ML20033B557
Person / Time
Site:	Salem
Issue date:	11/18/1981
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20033B558	List: 05000272/LER-1981-099, Forwards LER 81-099/03L-0.Detailed Event Analysis Encl 05000272/LER-1981-099-03, /03L-0:on 811022,containment Fan Coil Unit 12 Was Indicating Low Flow in Low Speed Mode.Caused by Flow Transmitter Plugged W/Silt.Transmitter Blown Down & Tested Satisfactorily
References
NUDOCS 8112010521
Download: ML20033B557 (3)

LER-1981-099, Forwards LER 81-099/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
2721981099R00 - NRC Website

text

O PSEG Public Service Electric and Gas Company P.O. Box 168 Hancocks Bridge, New Jersey 08038 Salem Generating Station November 18, 1981 Mr.

R.

C. Haynes p

Director of USNRC II" b' i)7 $O office of Inapection and Enforcement O

ht Region 1

//

631 Park Avenue

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.Q, King of Prussia, Pennsylvania 19406

Dear Mr. Haynes:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 81-99/03L 1

Pursuant to the requirements of Salem Generating Station Unit No. 1, Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 81-99/03L.

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

Sincerely yours,

,E M

t H.

J. Midura General Manager -

Salem Operations CC:

Distribution

)' 'h 8112010521 811118 PDR ADOCK 05000272

)U $

5 PDR

,(

The Energy People 9s2mo2s nie

Report Number:

81-99/03L Report Date:

11-18-81 Occurrence Date:

10-22-81 Facility:

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

1. 12 Containment Fan Coil Unit - Inoperable.

This report was initiated by Incident Report 81-420.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 95% - Unit Load 1040 MWe DESCRIPTION OF OCCURRENCE:

On October 12, 1981, the Control Room Operator noticed that No. 12 Containment Fan Coil Unit (CFCU) was indicating low flow in low speed mode.

At 1330 hours0.0154 days <br />0.369 hours <br />0.0022 weeks <br />5.06065e-4 months <br /> Nr 12 CFCU was declared inoperable and Action Statement 3.6.2.3.a was entered.

This occurrence constituted operation in a degraded r 3de in accordance with Technical Specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of the low flow indication was a silt clogged sensing line to the flow transmitter.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.6.2.3.a requires:

With one group of containment cooling fans inoperable and both Containment Spray Systems operable, restore the inoperable group of cooling fans to operable status within 7 days 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 in cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

CORRECTIVE ACTION

The flow transmitter was blown down to clear the sensing line of silt and the unit was tested satisfactorily.

At 1705 hours0.0197 days <br />0.474 hours <br />0.00282 weeks <br />6.487525e-4 months <br />, October 22, 1981 the No. 12 Containment Fan Coil Unit was declared operable and Action Statement 3.6.2.3.a was terminated.

A program is in effect to blow down all transmitters every week.

LER 81-99/03L.

FAILURE DATA:

Fischer and Porter Co.

Differential - Pressure Flow Transmitter Model 10B2495 [f

Prepared By K. Whitcomb e< us y

General Manager -

Salem Operations SORC Meeting No.

81-119B