05000311/LER-1981-002, Forwards LER 81-002/03L-0.Detailed Event Analysis Encl

Forwards LER 81-002/03L-0.Detailed Event Analysis Encl

ML20063P683
Person / Time
Site:	Salem
Issue date:	02/09/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20063P684	List: 05000311/LER-1981-002, Forwards LER 81-002/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-002-03, /03L-0:on 810117,during Routine Surveillance Test, 2A Diesel Generator Failed to Accelerate to 875 Rpm within 10-s.Caused by Failure of Solenoid Pilot Valves 21DA23A & 22DA23B.Valves Replaced
References
NUDOCS 8210150080
Download: ML20063P683 (2)

LER-1981-002, Forwards LER 81-002/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981002R00 - NRC Website

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4' Y Public Service Electric and Gas Company 80 Park Place Newark.N J 07101 Phone 201430 7000

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' February'90 1981

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Dear Mr. Grier.

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LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-02/03L-t b.

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Pursuant to the requirements of Salem Generating Station Uiiit No.

2 Technical Specifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 81-02/03L.

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

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R. A. Uderit(

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Nuclear Production 3r,.

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Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control b

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Report Number:

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Report Date:

2/9/81 Occurrence Date:

1/17/81

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Salem Generating Station, Unit 2 Public Service Electric & Gas Company 08038 Hancocks Bridge, New: Jersey- '

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IDENTIFICATION OF OCCURRENCE:

]s'7,;.kf," ' Diesel Generator Inoperat ve - Equipment Failure i

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_'E, CONDITIONS PRIOR TO OCCURRENCE:

s yc-Mode 5 - Rx Power: 0%. - Unit Load.0 !M DESCRIPTION OF OCCURRENCE:

1981, while performing surveil-During cold shutdown on January 17,4.3.2.1.3, Diesel Generator #2A failed to accelerate f-lance test SP(0)

The generator to 875 rpm within 10' seconds'as required by the test.Since the No. 2B generator was was declared inoperable.

inoperable for repairs, Action Statement 3.8.1.2 was entered at 1715 This occurrence constituted operation in a degraded mode.IAW hours.

Technical Specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment Failure ANALYSIS OF OCCURRENCE:

Upon investigation and troubleshooting', it was found that solenoid These valves pilot valves 21DA23A and 22DA23B were not opening.

are parallel cross-connected, and when open, allow air from the air receiver to be admitted to the turbo-booster on the diesel itself.

the Without this additional surge of air to the turbo-booster, generator is incapable of achieving 875 rpm in 10 seconds after the receipt of a start signal.

~ CORRECTIVE ACTION:

After Solenoid valves 21DA23A and 22DA23B were replaced in kind.

the Action the satisf actory completion of the surveillance test, Statement was terminated at 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br /> on January 21, 1981.

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FAILURE DATA:

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Manager - Salem Generating Station SORC Meeting'No. _

81-07 M

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