05000298/LER-1979-030-03, /03L-0:on 791021,while Pumping Water from Torus to radwaste,drywell-to-torus Differential Pressure Dropped Below Tech Specs.Caused by Nitrogen Pressure Forcing Water from Downcomers to Flow to Torus

/03L-0:on 791021,while Pumping Water from Torus to radwaste,drywell-to-torus Differential Pressure Dropped Below Tech Specs.Caused by Nitrogen Pressure Forcing Water from Downcomers to Flow to Torus

ML19210F013
Person / Time
Site:	Cooper
Issue date:	11/20/1979
From:	Phillips D NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19210F012	List: 05000298/LER-1979-030, Forwards LER 79-030/03L-0 05000298/LER-1979-030-03, /03L-0:on 791021,while Pumping Water from Torus to radwaste,drywell-to-torus Differential Pressure Dropped Below Tech Specs.Caused by Nitrogen Pressure Forcing Water from Downcomers to Flow to Torus
References
LER-79-030-03L, LER-79-30-3L, NUDOCS 7912130389
Download: ML19210F013 (1)

LER-1979-030, /03L-0:on 791021,while Pumping Water from Torus to radwaste,drywell-to-torus Differential Pressure Dropped Below Tech Specs.Caused by Nitrogen Pressure Forcing Water from Downcomers to Flow to Torus

Event date:
Report date:
2981979030R03 - NRC Website

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NRC FORM 366 U. S. NUCLE AR REGUL ATORY COMMISSION 1777)

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d 60 61 DOCK ET NuveER bd 69 EVENT DATE 14 75 REPORT O ATE 30 EVENT DESCRIPTION AND PROBA8LE CONSECUENCES h torus to radvaste_ the drwell o12 Durinst normal operation. while nuncing water frc~ the po torus differential pressure dropped to 1.0 psid vice >1.47 as required by Tech.

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> l4 Epec. Section 3.7.E.2. There was no significant occurrence as a result of this I

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