ML19207B349

LER 79-059/03L-0 on 790804:while Performing Surveillance Procedure During Shutdown Mode,Switch Failed to Operate at Proper Setpoint.Caused by Foreign Particles on Switch Mechanism.Switch Cleaned & Calibr

ML19207B349
Person / Time
Site:	Hatch
Issue date:	08/17/1979
From:	GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19207B346	List: ML19207B345 ML19207B349
References
LER-79-059-03L, LER-79-59-3L, NUDOCS 7908240476
Download: ML19207B349 (1)

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oi3  ; procedure HMP-1-3310, HPCI Turbine Exhaust Press. Instrument FT&C, was performed l ni4 [ and E41-M012D, HPCI Turbine Exhause Press. Switch (5tatic-0-Ring) failed to I o,5 operate at the proper setpoint. There were no probable consequences since HPCI I

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C ALTE CE00:4.l F TI O.N -::0 CORRECTIVE ACTIONS 1 ;o i The cause of Instrument f ailure was due to foreion narticles On the switch 1 1 i , 1 mech?nism. The switch was cleaned and calibrated per HMP-1-5240, Static-0-Ring 1

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