05000316/LER-1981-033-03, /03L-0:on 810714,pressurizer Pressure Dropped to 2,175 Psig While Power Was Being Reduced by Boration to Remove Main Feed Pump from Svc.Caused by Imbalance Between Rates of Reactor Power & Turbine Power Reduction

/03L-0:on 810714,pressurizer Pressure Dropped to 2,175 Psig While Power Was Being Reduced by Boration to Remove Main Feed Pump from Svc.Caused by Imbalance Between Rates of Reactor Power & Turbine Power Reduction

ML20010C855
Person / Time
Site:	Cook
Issue date:	08/11/1981
From:	Draper D INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20010C847	List: 05000316/LER-1981-032-03, /03L-0:on 810712,operator Discovered Abnormally High Metal Temp on Turbine Driven Auxiliary Feed Pump Casing,Suction & Discharge Piping.Caused by One of Two Check Valves in Discharge Lines Not Sealing Completely 05000316/LER-1981-033-03, /03L-0:on 810714,pressurizer Pressure Dropped to 2,175 Psig While Power Was Being Reduced by Boration to Remove Main Feed Pump from Svc.Caused by Imbalance Between Rates of Reactor Power & Turbine Power Reduction ML20010C846
References
LER-81-033-03L, LER-81-33-3L, NUDOCS 8108210107
Download: ML20010C855 (2)

LER-1981-033, /03L-0:on 810714,pressurizer Pressure Dropped to 2,175 Psig While Power Was Being Reduced by Boration to Remove Main Feed Pump from Svc.Caused by Imbalance Between Rates of Reactor Power & Turbine Power Reduction

Event date:
Report date:
3161981033R03 - NRC Website

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Lo uJ L PRESSURIZER PRESSURE DROPPED TO 2175 PSIG WHICH IS 30 PSIG BELOW THE T.S. (3.2.5)

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SIMILAR OCCURRENCES INCLUE' 316/81-23, 316/81-24, 78-99; 80-01, 80-11, 78-97 J [78-43 AND 78-72.

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