05000311/LER-1981-127, Forwards LER 81-127/03L-0.Detailed Event Analysis Encl

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Forwards LER 81-127/03L-0.Detailed Event Analysis Encl
ML20040B204
Person / Time
Site: Salem PSEG icon.png
Issue date: 01/06/1982
From: Midura H
Public Service Enterprise Group
To: Haynes R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20040B205 List:
References
NUDOCS 8201250266
Download: ML20040B204 (3)
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LER-1981-127, Forwards LER 81-127/03L-0.Detailed Event Analysis Encl
Event date:
Report date:
3111981127R00 - NRC Website
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Ftitil c Ger.v e I i < tric and (i:1 ; ( b,ropin y P O [io4 :: 1M li incock n Hr.dge, f Jew Jer ey (R03R n

January 6, 1982 Mr.

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Director of USNRC

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King of Prussia, Pennsylvania 19406 P >.,,.

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Dear Mr. Haynes:

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O LICENSE NO. DPR-75

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DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-127/03L 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 Reportubic Occurrence 81-127/03L.

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

Sincerely yours, l,l

ffN,

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11 '.' J. Midura General Manager -

Salem Operations CC:

Distribution 8201250266 820106 PDR ADOCK 05000311

,gt., @

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i Report Number:

81-127/03L l

l Report Date:

01-06-82 Occurrence Date:

12-15-81 Facility:

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

No. 2A Diesel Generator - Prelubrication Oil Heater - Inoperable.

This report was initiated by Incident Report 81-500.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 34% - Unit Load 320 MWe DESCRIPTION OF OCCURRENCE:

On December 15, 1981 the Control Operator received the DIESEL GENERATOR 2A URGENT TROUBLE alarm.

Upon investigation it was discovered that the prelubrication oil pump pressure was read-ing zero while the pump was running, the lubricating oil temperature was low, and the PRELUBE OIL PUMP FAILURE alarm was activated.

At 0620 hours0.00718 days <br />0.172 hours <br />0.00103 weeks <br />2.3591e-4 months <br /> 2A diesel was declared inoperable and Action Statement 3.8.1.1.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 prelubrication oil heater failed, causing the oil temperature to be low and viscosity high, preventing it from flowing properly.

Therefore, the pump, although running, could create no oil pressure.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.8.1.1.a requires:

l With either an offsite circuit or diesel generator of the above required A.C.

electrical power sources inoperable, demonstrate the operability of the remaining A.C.

sources by performing Surveillance Requirements 4. 8.1.1.1.a and 4.8.1.1.2.a.? within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least two of fsite circuits and three diesel generators 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 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 />.

l l

LER 81-127/03L

CORRECTIVE ACTION

Surveillance Requirements 4. 8.1.1.1. a and 4. 8.1.1. 2.a. 2 were performed within one hour and every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> as required by Action Statement 3.8.1.1.a.

At 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br />, December 16, 1981, 2A diesel was run to bring oil pressure and flow to normal.

At 2245 hours0.026 days <br />0.624 hours <br />0.00371 weeks <br />8.542225e-4 months <br />, December 17, 1981, it was determined that the diesel would be run periodically to maintain lubricating oil temperature above 1100F until a new heater could be procured and installed.

2A Diesel was declared operable and Action Statement 3.8.1.1.a was terminated.

Subsequently, on December 18, 1981, a new prelubrication oil heater was in-stalled, and 2A Diesel was tested satisfactorily.

FAILURE DATA:

Chromalox Electric IIeat Oil lleater Model TMO 6225 Prepared By F.

Dickey

/

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General Manager -

Salem Operations SORC Meeting No.

82-02

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