05000348/LER-1978-091-03, /03L-0 on 781212:train a River Water Pumps Noted to Be in Tripped State,Could Not Be Started from Control Room.Cause Not Yet Determined

/03L-0 on 781212:train a River Water Pumps Noted to Be in Tripped State,Could Not Be Started from Control Room.Cause Not Yet Determined

ML19256A829
Person / Time
Site:	Farley
Issue date:	01/11/1979
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256A824	List: 05000348/LER-1978-091, Forwards LER 78-091/03L-0 05000348/LER-1978-091-03, /03L-0 on 781212:train a River Water Pumps Noted to Be in Tripped State,Could Not Be Started from Control Room.Cause Not Yet Determined
References
LER-78-091-03L, LER-78-91-3L, NUDOCS 7901160211
Download: ML19256A829 (1)

LER-1978-091, /03L-0 on 781212:train a River Water Pumps Noted to Be in Tripped State,Could Not Be Started from Control Room.Cause Not Yet Determined

Event date:
Report date:
3481978091R03 - NRC Website

text

eme roHu asc u. S. NUCLEAR REGULATORY COMMISStON un LICENSEE EVENT REPORT CON f HOL BLOCK: l l

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(PLEASE PRINT OR TYPE ALL HEQUIRED INFORMAriCN)

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3 60 61 DOCKE T NL,V EH tA tu EVENT DATE 74 7a REFOP.T DATE So J

EVENT OESCRIPTION AND PROBABLE CONSEQUENCES h [112.}[At 1345 on 17/12/73 Train A river water (RW) pumps were observec' to be in a tripped I

QQ] l condition and could not be started from the Control Room.

The pumps could be operated l F[T] l In local control.

T/S 3.7.5 requires both RU loops operable. The 'irain A RU pumps l

[n g,J lwere returned to an operable status at 2240 on 12/12/73. T/S 3.7.5 action statement l

lB D l requirements were met.

The Train B RW pumps were operable.

This occurrence had no l

[oll) Leffect on the health and safety of the public.

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CAUSE

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The exact cause of this occurrence has not been determined.

LS511 was verified to be l

[ g] ] operating properly. A similar eveut occurred on 11/25/78 and was reported in LER

[, p l78-083/03L-0. A test procedura has been developed and will be performed to simulate l

[ g l the conditions that resulted in both occurrences.

A supplemental report will be sub-l RT] l mitted to LER 78-088/03L-o upon completion of the investigation.

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