05000333/LER-1979-020-03, During Normal Cold Shutdown,Operations Surveillance Testing Revealed That Emergency Diesel Generator Starting Air Compressor 93-AC-B1 Did Not Load Properly.Caused by Dirt in Unloader

During Normal Cold Shutdown,Operations Surveillance Testing Revealed That Emergency Diesel Generator Starting Air Compressor 93-AC-B1 Did Not Load Properly.Caused by Dirt in Unloader

ML19312D153
Person / Time
Site:	FitzPatrick
Issue date:	03/20/1980
From:	POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19312D150	List: 05000333/LER-1979-020, Forwards Revised LER 79-020/03X-1 05000333/LER-1979-020-03, During Normal Cold Shutdown,Operations Surveillance Testing Revealed That Emergency Diesel Generator Starting Air Compressor 93-AC-B1 Did Not Load Properly.Caused by Dirt in Unloader
References
LER-79-020-03X, LER-79-20-3X, NUDOCS 8003210340
Download: ML19312D153 (1)

LER-1979-020, During Normal Cold Shutdown,Operations Surveillance Testing Revealed That Emergency Diesel Generator Starting Air Compressor 93-AC-B1 Did Not Load Properly.Caused by Dirt in Unloader

Event date:
Report date:
3331979020R03 - NRC Website

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During normal cold shutdown operations surveillance testing-to satisfy l

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TS 4.9.B'.2 revealed that EDG startingfair compressor 93-AC-B1 did not-l

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No significant hazard.

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.Iiio1,1 Dirt in the' unloader e n ged~imorocer operation.

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- POWER AUTHORITY'0F THE STATE OF NEW~ YORK-QAMES A.' FITZPATRICK NUCLEAR POWER PLANT DOCKET NO.-50-333 J

ATTACHMENT TO'LER 79-020/03X-1 Page i of 1' 4

Whlle In the' cold shutdown condi tion --and.during the performance of.

Operations-Surveillance Test, F-ST-98 titled "EDG Full; Load Test (ISI)",

alr compressor 93-AC-B1 did not. load. This test was being conducted to

~atisfy;thefrequirements'of.-Technical Specification' Appendix A, Paragraph

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The redundant air compressor for the diesel engine (93-AC-82)-

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iwas. verified operable. 'The. event did not-represent a significant risk

<to the~public. health and' safety.

'Disas'sembly revealed that the~ unloader was not operating properly 7,

Edu'e to dirt..Following cleaning and reassembly, proper, operation was verified by completion of F-ST-98.

A review of routine surveillance did

.not Indicate evidence of any chronic air system problems such as dirt or-twater accumulations.- Sinco there has not been any evidence of recurring problems', no special' inspection or cleaning of the unloaders on the re-maining seven (7); air compressors was performed. However, inspection

'ard cleaning:(if required) will be performed as a matter of routine fpreventive maintenance on each air compressor each refueling outage.

NOTE: Revision 1 of this LER.is submitted to provide information

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