ML19256G159

LER 79-105/03L-0:on 791201,while Replacing Indicating Light Bulb During Rod Block Monitor Rod Block Test,Bulb Broke & Rod Block Monitor B Tripped.Caused by Base of Broken Bulb Coming in Contact W/Ground.Bulb Replaced

ML19256G159
Person / Time
Site:	Brunswick
Issue date:	12/14/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256G151	List: ML19256G150 ML19256G159
References
LER-79-105-03L, LER-79-105-3L, NUDOCS 7912270536
Download: ML19256G159 (1)

Text

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LICENSEE EVENT REPORT

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CONTROLBLOCK: l l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 7 0 1 8 9 lNlCIBlElPl2l@l0l0 LICENSEE CODE 14 15 l ') l o l o alol- olCl@[4l1l1l1

• tCENSE NUMaER 25 26 LICENSE TYPE JJ 1l@l l l@

57 L A T 'WI CON'T o i %URC l l. l@l o f s 101 - 101312 l 4 l@l 1 ! 2 t o 111719 j@ll ,4 75 i REPORT 2111O ATE a l 719SQ l@

7 8 60 61 DOLKET NUYSER Gd 69 EVENT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l While performing PT 1.5.1, RBM Rod Block Test, the operator noticed an indicating I _

light that was not lit as required. While attempting *o replace the indicating g 3 ;

o ,, [ bulb, it broke and RBM "B" tripped.

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o e i Technical Specifications 3.1.4.3, 6.9.1.9b i 7 8 9 COVP. VA LV E SYSTEM CAUSE CAUSE CCCE CODE SUSCOOE COMPONENT CODE SUSCODE SUSCODE O 9 l R l B lh l E lh l Al h l I l N l S l T l R l U lh [P_j 16 rd h [_Z_] 20 h

7 8 9 10 11 12 13 QCCURRENCE R8 PORT REVISION SEOVENTIAL

_ EVENT YEAR RE80RT NO. CODE TYPE NO.

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44 47 33 34 CAUSE DESCRIPTION AND CORRE0TtvE ACTIONS i O ] The base of the broken bulb came in contact with ground and tripped the RBM "B" 20 l i i l. volt power siipply breaker. The bulb was replaced, the power supoly was checked for i 2 l problems (none were found), and the breaker was reset and closed. This is considered i 3 l an isolated event. I i 4 1 8J 7 8 9 ST S  % POWER oTHER STATUS DIS O RY DISCOVERY DESCRIPTION l

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0 6 l 0l@l N/A l l B lhl Periodic Test 8

' * '8 ACTIVITY CO0 TENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELEASE W [Z_j 7 8 9

@ l Zl@l 10 tt N/A 44 l l 45 N/A 80 l

PERSOW#1 ZitPOSURES W'.*H E M TYPE D E SLRt PTION -

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N/A ** C 1- a l 12 80 7 8 9 11 LOSS OF OR DAMAGE TO FACILITY h TYPE DESCRIPTION b R Qj@l N/A i 4 . io i912270 ""C"""'

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NAME OF PREPARER A. C. Tollison. Jr- PHONE. 919-457-9521