05000311/LER-1981-038, Forwards LER 81-038/01T-0.Detailed Event Analysis Encl

Forwards LER 81-038/01T-0.Detailed Event Analysis Encl

ML20030B326
Person / Time
Site:	Salem
Issue date:	07/07/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20030B327	List: 05000311/LER-1981-038, Forwards LER 81-038/01T-0.Detailed Event Analysis Encl
References
NUDOCS 8108060334
Download: ML20030B326 (3)

LER-1981-038, Forwards LER 81-038/01T-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981038R00 - NRC Website

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U O PSEG Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 Phone 201/430 7000 July 7, 1981

([(f J *) (

Mr. Boyce H.

Grier o'

Director of USNRC i,

Office of Inspection and Enforcement Region 1 E4 AUC 0 51981* L9 631 Park Atinue

" u.s.ean w iemanoen A King of Prussia, Pennsylvania 19/.06 h

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NO DP -75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-38/0lT i

Pursuant to the requirements of Salem Generating Station Unit No. 2 Technical Specifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 81-38/0lT.

This report is required within fourteen (14) days of the occurrence.

Sincerely yours,

..f y,

.de A h>

. A.

derit General Manager -

Nuclear Production l

CC:

Director, Office of Inspection and Enforcement (40) copies) l Director, Office of Management Information and Program Control (3 copies) fb s,{'1f 8108060334 810707 PDR ADOCK 05000311 s

PDR l

l The Energy People Wa 2001 (400PM 181

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Report Number:

81-38/01T Report Date:

July 7, 1981 Occurrence Date:

6-23-81 Facility:

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

Service Water Leakage in Containment.

This report was initiated by Incident Report 81-206.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 3 - Rx Power 0% - 'Mit Load 0 MWe DESCRIPTION OF OCCURRL E:

With the Unit in Hot Standby conditions, during the performance of Startup Procedure (SUP 82.6), Loss of Offsite Power, a service water leak in containmenc was suspected due to the continuous running of the Containment Sump Pumps.

An investigation was started to determine the source of the suspected service water leak.

The investigation revealed that the threaded pipe cap on the motor cooler vent 11ae for No. 21 Containment Fan Coil Unit had backed off.

At 1133 hours0.0131 days <br />0.315 hours <br />0.00187 weeks <br />4.311065e-4 months <br />, June 23, 1981, the service water to No. 21 Containment Fan Coil Unit was isolated and Action Statement 3.F.2.3.a was entered.

Approximately 12,000 ga'lons of service water leaked into the containment before the leak was isolated.

This leakage was pumped to the Liquid Waste System waste hold up tanks by the Containment Sump Pumps.

This occurrence constituted operation in a degraded mode in accordance with Technical Specification 6.9.1.9 b. and is also reportable in j

accordance with I.E.

Bulletin 80-24 dated November 21, 1980, for

" Prevention of Damage Due to Water Leakage Inside Containment."

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

l Equipment failure.

Vibration had caused the 1/2 inch threaded pipe cap to back off the vent line on No. 21 Containment Fan Coil Unit motor cooler.

ANALYSIS OF OCCURRENCE:

Technical Specificatic 3.6.3.2.a requires that with one group of containment cooling fa inoperable and both containment spray i

systems operable, resto the inoperable group of cooling fans to l

operable status within 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 />.

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LER 81-38/0lT. July 7, 1981

CORRECTIVE ACTION

The threaded pipe cap was inspected and re-tightened'.

The Containment Fan Coil unit was made ready, returned to service and inspected for service water leakage.

No leakage was evident.

FAILURE DATA:

Not Applicable i

Prepared By J. J. Espey kE h 4 Gd

'Eanager'- Salem Generating Station i

l SORC Meeting No.

81-59 2

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