ML19317G057

AO-50-312/74-10:on 741030,auxiliary Feedwater Pump Failed During Filling of Steam Generator.Caused by Operator Error. Pump Rebuilt & Procedure to Be Developed Specifying Valving Arrangements

ML19317G057
Person / Time
Site:	Rancho Seco
Issue date:	12/06/1974
From:	Colombo R SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317G056	List: ML19317G055 ML19317G057
References
NUDOCS 8002210755
Download: ML19317G057 (1)

Text

LICENSEE EVENT REPORT y

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lLl jy l 0 l 5 l 01-l 013 l1 l2 l l 1 l 0 l 3 l 017l !!l l1 l 210 l 6 l 7l -l 7 8 57 58 59 60 61 68 69 74 75 60 EVENT DESCR:PTION E L'Ih* re3otor *^3 t oold Shutdown oonditionS for minor repairs to the turbine Sto?

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{alves. During filling of a steam generator with the Auxiliary Feedwater Purp, the j

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gg 7 89 50 g l pump failed. The redundant feedwater pung was operable and available. To prevent l

7 89 80 g3 reoccurrence a procedure will be develcped to specify val'dng arrangements.

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7 89 PnuE EC S rSTEM CAUSE CCMAGNENT COupCNENT CCCE CODE CCMACNENT CCCE SUF M A MANu%W{A VOLATON a

lS lH l l Al l Pl Ul I4l P l X l Xl l Al lB l0 l1 l0 l lyl 7 89 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION M l An cperator failed to cpen the suction valve to the feedwater pt=p.

Tce pu:m is 7 89 50 09 l "Onufactured by B&W Canada and 13 Mcdel DV 4x6x10-Eo rated at 840 GEM with l

7 89 l 2650 ft. head. Tne pt=p was rebuilt.

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l Arrroxirntely eicht days crerations leat; ru:m had to be cc=letelv rebuilt.

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