05000272/LER-1981-080, Forwards LER 81-080/03L-0.Detailed Event Analysis Encl

Forwards LER 81-080/03L-0.Detailed Event Analysis Encl

ML20049A731
Person / Time
Site:	Salem
Issue date:	09/21/1981
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20049A732	List: 05000272/LER-1981-080, Forwards LER 81-080/03L-0.Detailed Event Analysis Encl 05000272/LER-1981-080-03, /03L-0:on 810824,containment Fan Coil Unit Indicated No Svc Water Flow in High Speed.Caused by Leak of Flow Transmitter 13SW72 from Hole in Weld on Pipe Flange. Pipe Flange Rewelded
References
NUDOCS 8110020186
Download: ML20049A731 (3)

LER-1981-080, Forwards LER 81-080/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
2721981080R00 - NRC Website

text

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Public Service Electric and Gas Company P.O. Box 166 Hancocks Bridge, New Jersey 08038 Salem Generating Station Sectember 21, 1981 A

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Mr.

R. C. Haynes

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e-0072 Director of USNRC Office of Inspection and Enforcement

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y,4 IO8lA -S Region 1 k%g 4 631 Park Avenue King of Prussia, Pennsylvania 19406 h

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Dear Mr. Haynes:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 81-80/03L 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 81-80/03L.

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

Sincerely yours, j

L4ht

( ---

H.

J. Midura Manager - Salem Generating Station CC:

R.

A Uderitz General Manager - Nuclear Production Director, Office of Inspection l

and Enforcement (30 copies)

Director, Office of Management i

Information and Program Control l

(3 copies) 6I g i

^'8110020186 810921 PDR ADOCK 05000272 S

PDR The Energy People 9521891125M) 1180 v-

Report Number:

81-80/03L Report Date:

9-21-81 Occurrence Date:

8-24-81 Facility:

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

No. 13 Containment Fan Coil Unit - Inoperable.

This report was initiated by Incident Report 81-341.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 96% - Unit Load 1040 MWe PP3CRIPTION OF OCCURRENCE:

g On August 24, 1981, the control operator noticed that No. 13 containment fan coil unit (CFCU) indicated no service water flow in high speed.

Investigation revealed a substantial leak on 13SW72, a valve upstream of the flow transmitter.

The leak was in the penetration area, and was isolated.

At 2215 hours0.0256 days <br />0.615 hours <br />0.00366 weeks <br />8.428075e-4 months <br />, August 24, 1981, No. 13 CFCU was declared inoperable and action statement 3.6.2.3.a 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 leak was emanating from a hole in the weld on the pipe flange on 13SW72.

ANALYSIS OF OCCURRENCE:

Action statement 3.6.2.3.a requires:

With one group of containment cooling fans inoperable and both Containment Spray Systems operable, restore the inop-erable 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 />.

LER 81-80/03L t

}

CORRECTIVE ACTION

The pipe flange was rewelded and tested satisfactorily.

No. 13 CFCU was returned to service, and at 1230 hours0.0142 days <br />0.342 hours <br />0.00203 weeks <br />4.68015e-4 months <br />, August 30,.1981, action statement 3.6.2.3.a was terminated.

FAILURE DATA:

i Weld on 13SW72 pipe flange.

l. 'l' /. (/.aYL Prepared By F.

Dickey Manager - Salem Ghnerating Station,_

SORC Meeting No.

81-94 t

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