ML19317G012

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RO-76-17:on 761123,reactor Bldg Spray Pump P-291B Failed to Start During Surveillance Test.Caused by Failure to Rack Breaker Model K-600 Correctly.Breaker Correctly Racked
ML19317G012
Person / Time
Site: Rancho Seco
Issue date: 12/17/1976
From: Colombo R, Eisenbut F
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317F945 List:
References
NUDOCS 8002210711
Download: ML19317G012 (1)


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l0 l5 l0 l-l0 l3 l1l 2 l l 1l 1l 2l 3 l 7l 6 l l 1l 2[ 1l7 [7 l6 l 7 8 57 58 58 ED 81 68 69 74 75 80 EVENT DESCRgrTION Hg l When attempting to perform a surveillance test on the Reactor ouilding Spray System l

i 7 89 M 3 I

SE l on November 23, 1976, the pump failed to start. The pump breaker was not fully l

7 89 80 3! l racked in. oreventine operation. The other sprav loop and the 100% capacity l ~

7 89 80 -

@ l Emergency Cooling System were operable.

(R0 76-17) l 7 89 80

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80.

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$oE COMPONENT CODE VIOLATDN Coot

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7 89 10 11 12 17 43 44 47 48 <

c, CAUSE DESCRIPTION gg l Failure to rack in the ITE model K-600 breaker completely prevented the springs from l,,.

7 89 80 l charging the breaker, because the locking hasp did not drop in as it must. The l.,

89 80' I l~

l problem was solved by correctly racking the breaker.

FACLITY METHOD OF 6

STATUS

% POWER OTHER STATUS OISCOVERY OtSCOVERY DESCFliPTON l_E_l l1l0l0l l NA J

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1 7 8 9

10 12 13 44 45 48 80 RELEAS 0 0

AMOUNT OF ACTMTV LOCATON OF REL!ASE-l 35 l, Zj

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l NA l.

00 7 8 9

10 11 44 45 PERSONNEL EXPOSURES NUM8ER TYPE DESCRIP.ON I

@ l 0 l 0l 0l Wl NA l

7 89 11 12 13 80 1 g

PERSONNEL INJURIES NUMBER CESCRIPTON

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7 89 11 12 80 OFFSITE CONSEQUENCES

@ l None l Zl 7 89 80 sf; LOSS OR OAMAGE TO FACILITY TYPE DESCRIPTON g

32 (_Zj l NA l

7 89 10 80 i

l PUBUCITY BE l Local papers notified December 15, 1976.

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7 89 80

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AOOITIONAL FACTORS 8002210 i --

8 l 7 89 80 3E I l 1 7 89 80 NAME: R.W. Colombo /F.T. Eisenhu:y (916) 452-3211 j

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